Researchers from Waseda University in Japan have developed a novel direct discharge electrical pulse method to efficiently and effectively separate carbon fiber-reinforced polymers (CFRP) for recycling. The method uses Joule heat generation, thermal stress, and expansion force to separate the fibers, eliminating the need for high-temperature heating or chemicals. Compared to traditional methods, this approach preserves longer fibers with higher strength, and precisely separates individual fibers without residual resin. The technique also improves energy efficiency by at least a factor of 10, reducing environmental impact and promoting resource utilization.
This innovation has significant applications in recycling CFRP from spent aircraft components, automotive waste, and wind turbine blades, supporting the United Nations’ Sustainable Development Goals (SDG) 9 and 12. The team’s goal is to make recycling more sustainable and reduce environmental impact. The direct discharge electrical pulse method has the potential to transform the recycling industry, enabling efficient resource recovery and promoting a more sustainable world.