32 Recycling of Carbon Fiber Reinforced Composite Polymers—Review—Part 2: Recovery and Application of Recycled Carbon FibersÂ

Enforced by the European Chemicals Agency (ECHA), REACH requires all companies operating within the EU to identify and manage risks linked to the substances they manufacture and market. Since the precise formulations of composites are not always transparently disclosed, companies rely on their supply chain partners to stay updated with compliance and communicate any potential changes.Â

Efforts to recycle composite materials have been made, with a standout example being the successful collaborative effort between Boeing, VAS, and ELG Carbon Fibre in 2018. This joint venture led to the dismantling of a Boeing 787 and resulted in the recovery of approximately 380,000 pounds of carbon fibre. This recovered material was then sold for reuse to companies in the ground transportation and electronics industries.28

Composites play a significant role in many sectors, including aerospace, automotive, marine, construction, and renewable energy. Composite materials like fibreglass, carbon fibre, and reinforced polymers offer numerous advantages: they are durable, lightweight, and highly resistant to damage. However, the increasing use of composite materials has also led to a surge in the amount of waste generated.

The project's objectives include creating innovative dismantling and sorting mechanisms, improving component reusability, conducting pilot demonstrations, assessing environmental impacts, and collaborating on educational resources to upskill the workforce. Circularise’s blockchain-based software enables secure data sharing for efficient recycling and allocation of EoL components, contributing to the project's goal of creating new products and services that support circular economy strategies and enhance EU industrial competitiveness.

However, the disposal of composite materials presents unique challenges due to the durability of the resins and fibres that compose them. It can take hundreds or thousands of years for them to fully break down. The hazardous substances present in composite waste can release toxic substances into the soil and groundwater when not disposed of properly, posing a serious risk to the environment and the lives of those living nearby.

This is a series of standards for structural design in the construction and building sector, developed to standardise design practices between EU member states and to increase the performance and safety of buildings against natural and man-made threats.19 The 2nd generation of Eurocodes is being developed since 2010 and it is expected to be published by 2026. Although this is not in effect yet, a preliminary version of the standard for FRP structures has been published and entitled “Prospect for New Guidance in the Design of FRP Structures” which provides guidelines for the upcoming harmonised standard.20

Despite the efforts being made across industries to develop more sustainable End-of-Life (EoL) solutions for composite waste, industries grapple with a range of other sustainability challenges, from reducing CO2 emissions to enhancing transparency and navigating changing regulatory landscapes.Â

BMW, in collaboration with SGL Group, pioneered a recycling program for the carbon fibre reinforced plastics (CFRP) used in their i-Series vehicles, like the i3 and i8.31 EoL composite components are recycled by being broken down into smaller pieces and repurposed to manufacture new composite parts for non-structural uses due to changes in material properties post-recycling. Beyond automotive applications, BMW also repurposes composite waste for other uses, such as streetlight production and factory construction, showcasing the versatility of recycled composites in reducing waste and resource consumption.32

The RoHS (Restriction of Hazardous Substances) Directive is a piece of legislation enacted by the EU that aims to limit the use of specific hazardous materials found in electrical and electronic products. The substances restricted under RoHS include lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, and DIBP).25

Carbon and glass fibre composites (CFRP & GFRP), commonly used in wind turbine blades, hydrogen storage tanks, aircraft, yachts, buildings, and automobiles, are expected to become a major source of waste worldwide.

By 2050, it is estimated that the aircraft and wind turbine industries will collectively generate an annual CFRP waste total of 840,300 tonnes.1 In Europe, the total composite waste is projected to reach an astounding 683,000 tonnes per year by that time, while the global recycling capacity lags behind at less than 100,000 tonnes.2

Circularise is the leading software platform that provides end-to-end traceability for complex industrial supply chains. We offer two traceability solutions: MassBalancer to automate mass balance bookkeeping and Digital Product Passports for end-to-end batch traceability.

The aerospace industry has embarked on initiatives to support these sustainability goals, incorporating recycled materials into their products. This includes innovative practices such as repurposing aircraft components for unconventional uses, transforming them into furnishings, art pieces, or even converting aircraft fuselages into unique hotel structures.27

Image

Despite the efforts being made across industries to develop more sustainable End-of-Life (EoL) solutions for composite waste, industries grapple with a range of other sustainability challenges, from reducing CO2 emissions to enhancing transparency and navigating changing regulatory landscapes.Â

The blades of wind turbines are primarily made from fibreglass-reinforced polymers (FRP) or carbon fibre materials to achieve an optimal balance of strength, flexibility, and lightness. But the wind energy sector is grappling with the disposal of thousands of decommissioned wind turbine blades.

In a similar vein, the wind energy sector has also pursued various repurposing initiatives.29 For instance, decommissioned wind turbine blades have found a second life as material for building pedestrian bridges in countries like Poland and Ireland.30 Recycled composite materials from these turbines have also been repurposed across the automotive sector, taking on new forms such as short fibre mats, nonwoven mats, carbon fibre yarns, compounded thermoplastic pellets for injection moulding, 3D printing filaments, and discontinuous fibre-reinforced thermoplastic sheets.29

For industries dealing with composite materials, this means that any chemicals used in the production of composites must be registered with ECHA. Additionally, producers must assess and communicate potential risks, and may be required to implement risk management measures. This regulation not only affects the choice of raw materials for composites but also has implications for their entire lifecycle, including use, recycling, and disposal, thereby promoting safer use of chemicals and fostering innovation in the development of safer alternatives.

2022412 — Tolerance stack-up is something that needs to be addressed in every bearing assembly. Its calculation is the starting point for assessing what tolerance ...

Aerospace manufacturers extensively use advanced composites for various aircraft components due to their high strength-to-weight ratio and durability. As aircraft reach the end of their service life, the composite materials used in their construction become a source of waste.

Enforced by the European Chemicals Agency (ECHA), REACH requires all companies operating within the EU to identify and manage risks linked to the substances they manufacture and market. Since the precise formulations of composites are not always transparently disclosed, companies rely on their supply chain partners to stay updated with compliance and communicate any potential changes.Â

Image

This is a series of standards for structural design in the construction and building sector, developed to standardise design practices between EU member states and to increase the performance and safety of buildings against natural and man-made threats.19 The 2nd generation of Eurocodes is being developed since 2010 and it is expected to be published by 2026. Although this is not in effect yet, a preliminary version of the standard for FRP structures has been published and entitled “Prospect for New Guidance in the Design of FRP Structures” which provides guidelines for the upcoming harmonised standard.20

202445 — How to cut hard wire without cutting pliers · Cold Chisel and Hammer – you may be able to cut hard wire using a cold chisel and a hammer · Grinder ...

BMW, in collaboration with SGL Group, pioneered a recycling program for the carbon fibre reinforced plastics (CFRP) used in their i-Series vehicles, like the i3 and i8.31 EoL composite components are recycled by being broken down into smaller pieces and repurposed to manufacture new composite parts for non-structural uses due to changes in material properties post-recycling. Beyond automotive applications, BMW also repurposes composite waste for other uses, such as streetlight production and factory construction, showcasing the versatility of recycled composites in reducing waste and resource consumption.32

While there are no clear estimates on the amount of composite waste generated by the automotive industry, the global automotive composites market is projected to reach 16.3 billion USD by 2030.8 Reports suggest that the EU handles over 6 to 8 million End-of-Life Vehicles (ELV) per year,9 while globally, it is estimated that over 40 million vehicles reach the end of their useful life each year.10

Focused on advancing the circular economy for composite materials used in aircraft and wind turbine blades at their end-of-life (EoL), Circularise is working alongside 20 industry experts – including aerospace suppliers, automotive manufacturers, and research institutions in mechanical and industrial engineering – to aid in overcoming the challenges of recycling composites and improving traceability throughout the value chain.Â

The problem of composite waste is a microcosm of the broader struggle to reconcile industrial progress with global sustainability challenges. As industries continue to benefit from the advantageous properties of composites, they also face the task of managing the resulting waste responsibly. It is a stark reminder that innovation must be coupled with responsibility, and progress with conservation.

By setting design standards that products must meet before they can be sold in the EU, the directive encourages manufacturers to reduce waste and increase recyclability from the very beginning of the product development process. For industries utilising composite materials, this means a push towards designs that facilitate easier recycling or reuse of components, as well as the potential reduction of hazardous substances in composites, aligning with the EU's goals of resource efficiency and a circular economy.

Non-compliance with these regulations can result in the inability to sell products in the EU, potential fines, and the need for costly redesigns or recalls.Â

The management of waste from these products must comply with the principles of the WFD, which prioritises prevention, reuse, recycling, and recovery over disposal. The directive also requires that waste be managed without endangering human health and without harming the environment.Â

With Circularise’s patented Smart Questioning technology, you can achieve full traceability with privacy across industries. Rather than the full bill of materials, only the essential information needed – such as the presence of certain chemicals (hazardous materials, or that might harm recycling processes, resin system), damages within the EoL parts, repairs or adjustments made throughout the lifetime, mechanical properties and behaviour, among others – is shared for downstream processing. This selective disclosure means that companies can confirm compliance with regulations without revealing proprietary formulations.Â

With these concerning statistics, the effective and sustainable management of composite waste becomes imperative. It is crucial to develop and implement strategies that not only mitigate the environmental impact but also harness the value embedded in these materials. Currently, these are the main methods for disposing of composite materials:11

2019102 — The grits are rated from 250 to 1200, and the 250 grit is designated as coarse. That puts the 180-grit wheel on Harbor Freight's circular saw ...

... flutes for more petite players (like small children) or on large instruments like Alto or Bass flutes. ... flute keys (hence the name). This eliminated the need ...

Image

For industries dealing with composite materials, this means that any chemicals used in the production of composites must be registered with ECHA. Additionally, producers must assess and communicate potential risks, and may be required to implement risk management measures. This regulation not only affects the choice of raw materials for composites but also has implications for their entire lifecycle, including use, recycling, and disposal, thereby promoting safer use of chemicals and fostering innovation in the development of safer alternatives.

5-550-015 HSS Corner Rounding End Mill, 1/8x1/2, Toolmex Industrial Solutions.

Carbon and glass fibre composites (CFRP & GFRP), commonly used in wind turbine blades, hydrogen storage tanks, aircraft, yachts, buildings, and automobiles, are expected to become a major source of waste worldwide.

The initiatives and regulations currently in place are but nascent steps toward the ultimate goal of a circular economy. The pioneering efforts within the aerospace, wind energy, and automotive sectors to repurpose and recycle composite materials must be replicated on a global scale. Collaborative projects like the EuReComp and technological innovation in traceability and privacy are the building blocks of a future where waste is not an afterthought, but an integral, deliberated element of a product’s lifecycle.Â

27 Elsayed, A., Roetger, T., & Bann, A. (2019). Best Practices and Standards in Aircraft End-of-Life and Recycling. 2019 Environmental Report, 279-284.

The evolution of these standards can be seen for example for wind turbine blades where they focus now on improving aspects that include component reliability and reduction of maintenance costs, design and certification, as well as EoL management, such as:

Here are some promising and innovative initiatives in various sectors to find new life for EoL composite waste. Driving these are the R-strategies for circular economy, designed to optimise resource efficiency, minimise waste, and promote the recovery and reuse of materials. Although there are signs of progress, the composite recycling industry is still in its infancy and needs further research and continued investment.

The aerospace industry has embarked on initiatives to support these sustainability goals, incorporating recycled materials into their products. This includes innovative practices such as repurposing aircraft components for unconventional uses, transforming them into furnishings, art pieces, or even converting aircraft fuselages into unique hotel structures.27

For composite materials, particularly when composites are incorporated into electronic components, RoHS compliance means ensuring that these substances are not used above certain levels in the production process. As a result, the directive influences the composition of composite materials used in electronics across industries.

The RoHS (Restriction of Hazardous Substances) Directive is a piece of legislation enacted by the EU that aims to limit the use of specific hazardous materials found in electrical and electronic products. The substances restricted under RoHS include lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, and DIBP).25

In a similar vein, the wind energy sector has also pursued various repurposing initiatives.29 For instance, decommissioned wind turbine blades have found a second life as material for building pedestrian bridges in countries like Poland and Ireland.30 Recycled composite materials from these turbines have also been repurposed across the automotive sector, taking on new forms such as short fibre mats, nonwoven mats, carbon fibre yarns, compounded thermoplastic pellets for injection moulding, 3D printing filaments, and discontinuous fibre-reinforced thermoplastic sheets.29

Predominantly sourced from finite fossil fuels, composite materials present significant recycling challenges due to high manufacturing scrap rates and complex material compositions. The recycling process is further complicated as information about material composition is  often lost by the time the materials reach their end-of-life stage, complicating recycling efforts.3

Circularise is the leading software platform that provides end-to-end traceability for complex industrial supply chains.

The problem of composite waste is a microcosm of the broader struggle to reconcile industrial progress with global sustainability challenges. As industries continue to benefit from the advantageous properties of composites, they also face the task of managing the resulting waste responsibly. It is a stark reminder that innovation must be coupled with responsibility, and progress with conservation.

Predominantly sourced from finite fossil fuels, composite materials present significant recycling challenges due to high manufacturing scrap rates and complex material compositions. The recycling process is further complicated as information about material composition is  often lost by the time the materials reach their end-of-life stage, complicating recycling efforts.3

Our solution elegantly meets the demands of the aerospace, wind energy, and automotive industries, catering to the requirements of EoL operators by facilitating the collection and treatment of composite waste.

By setting design standards that products must meet before they can be sold in the EU, the directive encourages manufacturers to reduce waste and increase recyclability from the very beginning of the product development process. For industries utilising composite materials, this means a push towards designs that facilitate easier recycling or reuse of components, as well as the potential reduction of hazardous substances in composites, aligning with the EU's goals of resource efficiency and a circular economy.

With Circularise’s patented Smart Questioning technology, you can achieve full traceability with privacy across industries. Rather than the full bill of materials, only the essential information needed – such as the presence of certain chemicals (hazardous materials, or that might harm recycling processes, resin system), damages within the EoL parts, repairs or adjustments made throughout the lifetime, mechanical properties and behaviour, among others – is shared for downstream processing. This selective disclosure means that companies can confirm compliance with regulations without revealing proprietary formulations.Â

The REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) Regulation is a comprehensive framework established by the EU to manage the production, import, and use of chemical substances, and to provide a high level of protection for human health and the environment from their risks.26

By 2050, it is estimated that the aircraft and wind turbine industries will collectively generate an annual CFRP waste total of 840,300 tonnes.1 In Europe, the total composite waste is projected to reach an astounding 683,000 tonnes per year by that time, while the global recycling capacity lags behind at less than 100,000 tonnes.2

From a sustainability standpoint, the improper management of composite waste can negate the environmental benefits of clean energy, potentially compromising the sector's economic viability and public acceptance. As a result, it is important to also track the lifecycle of the new product made of recycled composite waste.

Composite waste is generated by a wide range of industries due to the versatile nature of composite materials. These industries typically use composites for their advantageous properties, such as high strength-to-weight ratios, corrosion resistance, and design flexibility. Here are three industries that are known to generate significant amounts of composite waste that are projected to grow substantially in the future.Â

Composites play a significant role in many sectors, including aerospace, automotive, marine, construction, and renewable energy. Composite materials like fibreglass, carbon fibre, and reinforced polymers offer numerous advantages: they are durable, lightweight, and highly resistant to damage. However, the increasing use of composite materials has also led to a surge in the amount of waste generated.

Many countries already have national waste management legislation that extends to the handling and disposal of composite materials, electronic waste, and End-of-Life Vehicles (ELVs) to ensure that they are managed properly to protect human health and the environment. Recognising the potential environmental hazards and the value of the materials within these wastes, these countries have taken further legislative steps to specifically address these issues:

Is the current metal removal rate formula for turning correct? By Edmund Isakov, PhD. Metal removal rate (MRR) in metalcutting indicates the volume of chips ...

The situation is further complicated by stakeholders’ reluctance to disclose sensitive confidential information. Data confidentiality and security are especially crucial for suppliers who handle sensitive information related to intellectual property (IP). Therefore protecting material composition, properties, processes, and upstream chain data is vital for maintaining a competitive edge and preserving unique selling points.Â

A collaborative, multi-sector approach will be required for developing effective methods to reduce the environmental impact of composite waste. Since each sector produces a relatively small portion of the total waste, pooling resources and expertise across industries, along with guidance from regulatory agencies, will be crucial to developing cost-effective and sustainable waste management solutions.

While there are no clear estimates on the amount of composite waste generated by the automotive industry, the global automotive composites market is projected to reach 16.3 billion USD by 2030.8 Reports suggest that the EU handles over 6 to 8 million End-of-Life Vehicles (ELV) per year,9 while globally, it is estimated that over 40 million vehicles reach the end of their useful life each year.10

23 German Institute of Normalization (DIN), DIN SPEC 4866:2020-10 Sustainable demolition, dismantling, recycling and utilization of wind turbines. 2020.

Get the best deals on Solid Carbide Metalworking Finishing End Mills when you shop the largest online selection at eBay.com. Free shipping on many items ...

Efforts to recycle composite materials have been made, with a standout example being the successful collaborative effort between Boeing, VAS, and ELG Carbon Fibre in 2018. This joint venture led to the dismantling of a Boeing 787 and resulted in the recovery of approximately 380,000 pounds of carbon fibre. This recovered material was then sold for reuse to companies in the ground transportation and electronics industries.28

The Ecodesign Directive (formally known as Directive 2009/125/EC) is a pivotal piece of EU legislation aimed at improving the environmental performance of products throughout their life cycle by establishing requirements for the design of energy-related products. While it primarily targets energy efficiency, the directive also has implications for the broader environmental impact of products, including the use of composite materials. This framework provides overarching guidelines from which more specific product or industry regulations draw their principles, although it does not directly address the issue of composite waste.18

The project's objectives include creating innovative dismantling and sorting mechanisms, improving component reusability, conducting pilot demonstrations, assessing environmental impacts, and collaborating on educational resources to upskill the workforce. Circularise’s blockchain-based software enables secure data sharing for efficient recycling and allocation of EoL components, contributing to the project's goal of creating new products and services that support circular economy strategies and enhance EU industrial competitiveness.

Unfortunately, there are limited effective and sustainable End-of-Life (EoL) solutions available for composite waste today. The improper handling and disposal of these materials add to the growing pressures on landfill sites and can result in persistent environmental damage. It is essential for industries reliant on composite materials to address the transition to a circular economy model to reduce environmental impact and support sustainability efforts.

Austenitic stainless steels have a face-centred-cubic, (fcc), crystal structure, which is the same as that of pure iron above the A3 temperature of 910oC.

Here are some promising and innovative initiatives in various sectors to find new life for EoL composite waste. Driving these are the R-strategies for circular economy, designed to optimise resource efficiency, minimise waste, and promote the recovery and reuse of materials. Although there are signs of progress, the composite recycling industry is still in its infancy and needs further research and continued investment.

The automotive sector employs composites in the production of lightweight and fuel-efficient vehicles. Components like body panels, frames, and interior features are often made from composites, creating waste as vehicles are retired or components are replaced.Â

European Commission initiatives underscore the critical need to meet sustainability goals by enacting measures to reduce the volume of products ending up in landfills and encourage companies to develop effective waste management strategies, especially for EoL products.Â

Additionally, as global awareness of environmental issues grows, similar regulations are being adopted in other countries, expanding the impact of this type of legislation beyond the EU. Therefore, manufacturers and companies must carefully monitor and manage the use of hazardous substances in their products to ensure compliance with similar regulations worldwide.

The Waste Framework Directive (WFD) establishes the legislative framework for the handling of waste in the EU and could exert a profound influence on the handling of composite waste within the EU.16 While the WFD does not specifically mention aircraft, cars, or wind turbines, it applies to waste generated from these products when they reach their end-of-life stage; specifically:

With these concerning statistics, the effective and sustainable management of composite waste becomes imperative. It is crucial to develop and implement strategies that not only mitigate the environmental impact but also harness the value embedded in these materials. Currently, these are the main methods for disposing of composite materials:11

Aircraft boneyards, which are spread out across the globe, also encounter the same issue of managing large amounts of composite waste. The Aircraft Fleet Recycling Association (AFRA) estimates around 15,000 aircraft will be retired in the next 2 decades.4 Composite waste from aircraft typically represents a significant portion of the total waste, as since 2005 there has been an increasing replacement of structural weight with lighter,5 yet more combustible composite material,6 which can take thousands of years to decompose.

... Carbide Inserts for Aluminum - Quick View. CCGT 21.5 32.5 431 - 0602 09T3 1204 NFU Precision Ground Carbide Inserts for Aluminum - Non-Ferrous 10 Pack ID 1300-.

5 Slayton, R., & Spinardi, G. (2016). Radical innovation in scaling up: Boeing’s Dreamliner and the challenge of socio-technical transitions. Technovation, 47, 47-58.

From a sustainability standpoint, the improper management of composite waste can negate the environmental benefits of clean energy, potentially compromising the sector's economic viability and public acceptance. As a result, it is important to also track the lifecycle of the new product made of recycled composite waste.

Our solution elegantly meets the demands of the aerospace, wind energy, and automotive industries, catering to the requirements of EoL operators by facilitating the collection and treatment of composite waste.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

Many countries already have national waste management legislation that extends to the handling and disposal of composite materials, electronic waste, and End-of-Life Vehicles (ELVs) to ensure that they are managed properly to protect human health and the environment. Recognising the potential environmental hazards and the value of the materials within these wastes, these countries have taken further legislative steps to specifically address these issues:

Incorporating robust and scaleable traceability systems into industrial processes will be instrumental in achieving this vision. By streamlining the exchange of critical information while protecting intellectual property, these systems will facilitate the adoption of end-of-life strategies, accelerating the shift towards a circular economy.

European Commission initiatives underscore the critical need to meet sustainability goals by enacting measures to reduce the volume of products ending up in landfills and encourage companies to develop effective waste management strategies, especially for EoL products.Â

Each stakeholder is responsible for selecting what information and how detailed, sharing to whom and updating what is still valid and what has changed in the data regarding their components and processes. This allows for:

Composite waste is generated by a wide range of industries due to the versatile nature of composite materials. These industries typically use composites for their advantageous properties, such as high strength-to-weight ratios, corrosion resistance, and design flexibility. Here are three industries that are known to generate significant amounts of composite waste that are projected to grow substantially in the future.Â

Focused on advancing the circular economy for composite materials used in aircraft and wind turbine blades at their end-of-life (EoL), Circularise is working alongside 20 industry experts – including aerospace suppliers, automotive manufacturers, and research institutions in mechanical and industrial engineering – to aid in overcoming the challenges of recycling composites and improving traceability throughout the value chain.Â

The EuReComp project is a multi-stakeholder research initiative that aims to develop sustainable recycling and repurposing methods for composite materials, contributing to the EU’s goal of reducing landfill waste.33

A collaborative, multi-sector approach will be required for developing effective methods to reduce the environmental impact of composite waste. Since each sector produces a relatively small portion of the total waste, pooling resources and expertise across industries, along with guidance from regulatory agencies, will be crucial to developing cost-effective and sustainable waste management solutions.

The REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) Regulation is a comprehensive framework established by the EU to manage the production, import, and use of chemical substances, and to provide a high level of protection for human health and the environment from their risks.26

The Waste Framework Directive (WFD) establishes the legislative framework for the handling of waste in the EU and could exert a profound influence on the handling of composite waste within the EU.16 While the WFD does not specifically mention aircraft, cars, or wind turbines, it applies to waste generated from these products when they reach their end-of-life stage; specifically:

29 Zhang, J., Chevali, V. S., Wang, H., & Wang, C. H. (2020). Current status of carbon fibre and carbon fibre composites recycling. Composites Part B: Engineering, 193, 108053.

6 Lee, C. H., Salit, M. S., & Hassan, M. R. (2014). A review of the flammability factors of kenaf and allied fibre reinforced polymer composites. Advances in Materials Science and Engineering, 2014.

The Ecodesign Directive (formally known as Directive 2009/125/EC) is a pivotal piece of EU legislation aimed at improving the environmental performance of products throughout their life cycle by establishing requirements for the design of energy-related products. While it primarily targets energy efficiency, the directive also has implications for the broader environmental impact of products, including the use of composite materials. This framework provides overarching guidelines from which more specific product or industry regulations draw their principles, although it does not directly address the issue of composite waste.18

Additionally, as global awareness of environmental issues grows, similar regulations are being adopted in other countries, expanding the impact of this type of legislation beyond the EU. Therefore, manufacturers and companies must carefully monitor and manage the use of hazardous substances in their products to ensure compliance with similar regulations worldwide.

The blades of wind turbines are primarily made from fibreglass-reinforced polymers (FRP) or carbon fibre materials to achieve an optimal balance of strength, flexibility, and lightness. But the wind energy sector is grappling with the disposal of thousands of decommissioned wind turbine blades.

Aircraft boneyards, which are spread out across the globe, also encounter the same issue of managing large amounts of composite waste. The Aircraft Fleet Recycling Association (AFRA) estimates around 15,000 aircraft will be retired in the next 2 decades.4 Composite waste from aircraft typically represents a significant portion of the total waste, as since 2005 there has been an increasing replacement of structural weight with lighter,5 yet more combustible composite material,6 which can take thousands of years to decompose.

The initiatives and regulations currently in place are but nascent steps toward the ultimate goal of a circular economy. The pioneering efforts within the aerospace, wind energy, and automotive sectors to repurpose and recycle composite materials must be replicated on a global scale. Collaborative projects like the EuReComp and technological innovation in traceability and privacy are the building blocks of a future where waste is not an afterthought, but an integral, deliberated element of a product’s lifecycle.Â

The evolution of these standards can be seen for example for wind turbine blades where they focus now on improving aspects that include component reliability and reduction of maintenance costs, design and certification, as well as EoL management, such as:

However, the disposal of composite materials presents unique challenges due to the durability of the resins and fibres that compose them. It can take hundreds or thousands of years for them to fully break down. The hazardous substances present in composite waste can release toxic substances into the soil and groundwater when not disposed of properly, posing a serious risk to the environment and the lives of those living nearby.

Given the industry's rapid expansion, the amount of composite waste from wind turbines is becoming a significant problem. Based on a report by WindEurope, approximately 14,000 wind turbine blades could be decommissioned by 2023, with an estimated weight range of roughly 40,000 to 60,000 tons. By 2025, blade waste alone will account for 10% of the total projected waste generated from composite materials.7Â

The EuReComp project is a multi-stakeholder research initiative that aims to develop sustainable recycling and repurposing methods for composite materials, contributing to the EU’s goal of reducing landfill waste.33

The management of waste from these products must comply with the principles of the WFD, which prioritises prevention, reuse, recycling, and recovery over disposal. The directive also requires that waste be managed without endangering human health and without harming the environment.Â

20 ASCIONE, L., et al., Prospect for new guidance in the design of FRP. 2016, Publications Office of the European Union: Ispra (Italy).

The situation is further complicated by stakeholders’ reluctance to disclose sensitive confidential information. Data confidentiality and security are especially crucial for suppliers who handle sensitive information related to intellectual property (IP). Therefore protecting material composition, properties, processes, and upstream chain data is vital for maintaining a competitive edge and preserving unique selling points.Â

Aerospace manufacturers extensively use advanced composites for various aircraft components due to their high strength-to-weight ratio and durability. As aircraft reach the end of their service life, the composite materials used in their construction become a source of waste.

Incorporating robust and scaleable traceability systems into industrial processes will be instrumental in achieving this vision. By streamlining the exchange of critical information while protecting intellectual property, these systems will facilitate the adoption of end-of-life strategies, accelerating the shift towards a circular economy.

Each stakeholder is responsible for selecting what information and how detailed, sharing to whom and updating what is still valid and what has changed in the data regarding their components and processes. This allows for:

By mandating member states to create waste management plans that include strategies for composites, the WFD promotes the development of new recycling technologies and marketplaces for secondary raw materials. Extended Producer Responsibility (EPR) schemes, increasingly prevalent in the management of plastics and textiles, could significantly improve the handling of composite waste if similarly applied. This compels manufacturers to consider the entire lifecycle of their products, thus potentially leading to improved design for disassembly and recycling. The directive's impact is steering the EU towards a circular economy, where the environmental footprint of composite waste is significantly reduced.

Non-compliance with these regulations can result in the inability to sell products in the EU, potential fines, and the need for costly redesigns or recalls.Â

Given the industry's rapid expansion, the amount of composite waste from wind turbines is becoming a significant problem. Based on a report by WindEurope, approximately 14,000 wind turbine blades could be decommissioned by 2023, with an estimated weight range of roughly 40,000 to 60,000 tons. By 2025, blade waste alone will account for 10% of the total projected waste generated from composite materials.7Â

Unfortunately, there are limited effective and sustainable End-of-Life (EoL) solutions available for composite waste today. The improper handling and disposal of these materials add to the growing pressures on landfill sites and can result in persistent environmental damage. It is essential for industries reliant on composite materials to address the transition to a circular economy model to reduce environmental impact and support sustainability efforts.

By mandating member states to create waste management plans that include strategies for composites, the WFD promotes the development of new recycling technologies and marketplaces for secondary raw materials. Extended Producer Responsibility (EPR) schemes, increasingly prevalent in the management of plastics and textiles, could significantly improve the handling of composite waste if similarly applied. This compels manufacturers to consider the entire lifecycle of their products, thus potentially leading to improved design for disassembly and recycling. The directive's impact is steering the EU towards a circular economy, where the environmental footprint of composite waste is significantly reduced.

For composite materials, particularly when composites are incorporated into electronic components, RoHS compliance means ensuring that these substances are not used above certain levels in the production process. As a result, the directive influences the composition of composite materials used in electronics across industries.

7 Schmid, M., Ramon, N.G., Dierckx, A. and Wegman, T., 2020. Accelerating wind turbine blade circularity. Fraile and C. Walsh, Editors.

The automotive sector employs composites in the production of lightweight and fuel-efficient vehicles. Components like body panels, frames, and interior features are often made from composites, creating waste as vehicles are retired or components are replaced.Â

Click here:point_up_2:to get an answer to your question :writing_hand:the angle subtended by the moons diameter at a point on the earth is about050circ.