Asahi Kasei collaborates on development of recycling technology for inexpensive, high-quality carbon fiber

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Asahi Kasei, a diversified Japanese multinational company, has developed a new technology for recycling carbon fiber plastic compounds together with the National Institute of Technology, Kitakyushu College and Tokyo University of Science.

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Provider: 
Business Wire, Inc.Business Wire, Inc.
Retrieved on: 
星期二, 一月 17, 2023
Information
Tags: 
Other Manufacturing, Environment, Other Energy, Chemicals, Plastics, Sustainability, Alternative Energy, Manufacturing, Green Technology, Energy, Recycling, Carbon, CFRP, National Institute of Technology, Tiruchirappalli, Carbon-fiber-reinforced polymers, University of Tokyo, CFRTP, Tokyo University of Science, Car, Weight, Rigidity, Multimedia, Plastic, Engineered wood, Glass fiber
Geotags: 
NEW YORK, GERMANY, EUROPE, UNITED STATES, NORTH AMERICA
Stock Symbol: 
TOKYO:3407
OTC Pink:AHKSY
摘要
Key Points: 
  • Asahi Kasei, a diversified Japanese multinational company, has developed a new technology for recycling carbon fiber plastic compounds together with the National Institute of Technology, Kitakyushu College and Tokyo University of Science.
  • Together with its project partners at the National Institute of Technology at Kitakyushu College and the Tokyo University of Science, Asahi Kasei has developed a recycling method that allows carbon fibers to be extracted from CFRP or carbon fiber reinforced thermoplastics (CFRTP) used in automobiles.
  • Unlike carbon fiber that is chopped up during the recycling process, Asahi Kasei’s method allows carbon fiber to be extracted from a plastic compound seamlessly, resulting in continuous strands of carbon fiber that can be reapplied in exactly the same manner while retaining properties identical to the original substance.
  • In addition, Asahi Kasei is developing a carbon fiber reinforced thermoplastic unidirectional tape (CFRTP-UD tape) that utilizes both recycled continuous carbon fiber and the company’s Leona™ polyamide resin.


Asahi Kasei, a diversified Japanese multinational company, has developed a new technology for recycling carbon fiber plastic compounds together with the National Institute of Technology, Kitakyushu College and Tokyo University of Science.

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Asahi Kasei's method of recycling carbon fiber enables CFRP and CFRTP waste to be decomposed efficiently and inexpensively so that it yields seamless, continuous strands of carbon fiber that retain the same strength and other properties of the original material. (Photo: Business Wire)

Asahi Kasei's method of recycling carbon fiber enables CFRP and CFRTP waste to be decomposed efficiently and inexpensively so that it yields seamless, continuous strands of carbon fiber that retain the same strength and other properties of the original material. (Photo: Business Wire)

Carbon fiber reinforced plastics (CFRP) are highly attractive for various industries in demanding application fields due to their unique balance of rigidity, mechanical strength and light weight – also compared with conventional glass fiber reinforced plastics. However, CFRPs are expensive and challenging from a recycling perspective, as it is difficult to extract the carbon fibers from the resin after usage.

Together with its project partners at the National Institute of Technology at Kitakyushu College and the Tokyo University of Science, Asahi Kasei has developed a recycling method that allows carbon fibers to be extracted from CFRP or carbon fiber reinforced thermoplastics (CFRTP) used in automobiles. This results in high-quality, inexpensive continuous carbon fiber that can be recycled perpetually, contributing to the circular economy. Unlike carbon fiber that is chopped up during the recycling process, Asahi Kasei’s method allows carbon fiber to be extracted from a plastic compound seamlessly, resulting in continuous strands of carbon fiber that can be reapplied in exactly the same manner while retaining properties identical to the original substance.

The conventional technologies for recycling carbon fibers by chopping and re-applying them results in a lower quality, less durable product that is insufficient for high-performance applications. To address this issue, Asahi Kasei has developed an “electrolyzed sulfuric acid solution method” that can decompose CFRP and CFRTP waste material in a way that allows the carbon fiber to retain its original strength and continuous nature while fully decomposing any residual resins present in the plastic waste. This allows for its continued use in high-performance applications and presents an inexpensive, circular solution to the end-of-life dilemma of carbon fiber plastic compounds. Thus, these carbon fiber compounds present in vehicles for weight reduction can be easily and inexpensively be broken down at end-of-vehicle-life and reapplied to new vehicles in the future.

In addition, Asahi Kasei is developing a carbon fiber reinforced thermoplastic unidirectional tape (CFRTP-UD tape) that utilizes both recycled continuous carbon fiber and the company’s Leona™ polyamide resin. Boasting a higher strength than metal, this CFRTP-UD tape can be applied to automobile frames and bodies, further enabling the recycling of end-of-vehicle-life parts into different, new automobile parts. This presents a solution to the long-term challenge that carbon fiber usage for vehicles has posed on the industry and is expected to economically benefit and strengthen carbon fiber’s usage within the automobile industry on a global scale. Moving forward, Asahi Kasei will perform demonstrations and develop the business, aiming for practical application around 2030.

About Asahi Kasei

The Asahi Kasei Group contributes to life and living for people around the world. Since its foundation in 1922 with ammonia and cellulose fiber businesses, Asahi Kasei has consistently grown through the proactive transformation of its business portfolio to meet the evolving needs of every age. With more than 46,000 employees around the world, the company contributes to a sustainable society by providing solutions to the world's challenges through its three business sectors of Material, Homes, and Health Care. Its Material sector, comprised of Environmental Solutions, Mobility & Industrial, and Life Innovation, includes a wide array of products, from battery separators and biodegradable textiles to engineering plastics and sound solutions. For more information, visit https://www.asahi-kasei.com/.

The Asahi Kasei Group aims to contribute to a carbon-neutral and sustainable world from the perspective of “Care for Earth” by focusing on initiatives such as the use of biomass raw materials, recycled raw materials, and renewable energy. The company strives to meet the expectations of its customers and society by further advancing the provision of products and services with such sustainable characteristics while deepening collaboration with other companies to reach a carbon-neutral society by 2050. To learn more, visit https://www.asahi-kasei.com/sustainability/.

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