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Chen Wei Liu, Speaker at Renewable Energy Conferences
Green Energy and Environment Research Laboratories, Taiwan
Title : Development of chemical recycling method for circularity of thermoset composite waste

Abstract:

The growing of thermoset composite waste with valuable carbon fibres has cumulating every year from various applications such as sports equipment, aerospace and automotive. Except bound for landfill, there are some different ways to recycle the fiber composite waste. The ideal key solution must be a cost-effectively and green recycling method without causing negative environmental impact. Developing method for chemical recycling of thermoset composite to high value carbon fiber and organic oligomers is also an important issue. In this work, we propose an efficient strategy for chemical recycling of fiber composite waste via using chemical degradation formula. The experiment results show that the fiber composite waste is successful recycling without changing fiber length. Moreover, the chemical degradation agent used in this process can be recycled and reused. From thermogravimetric analysis (TGA) results, the surface of carbon fiber are very clean and no resin left. The residual rate of resin is less than 1%. Besides carbon fiber obtained from chemical recycling method, the recycling process also recovers valuable oligomers from thermoset composite waste. Additionally, a brief analysis of their environmental and economic aspects are discussed based on sustainable values of reclaimed fiber. The ultimate goal for recycling of waste thermoset composite is to increase the economic value of the recycled products, to bootstrap an industrial eco-system with a viable business model.

Audience Take Away: 

  • Understand the currently status for recycling of thermoset composite waste.
  • Introduction of efficient strategy for chemical recycling of fiber composite waste.
  • Recognize the potential application of reclaimed fiber in sustainable values products.
  • Brief introduction of the environmental and economic aspects for chemical recycling method.

Biography:

Dr. Chen-Wei Liu, he graduated from Institute of Materials Science and Engineering (IMSE) at National Central University (NCU), Taoyuan, Taiwan. He then joined Industrial Technology Research Institute as a researcher. His research focuses on interdisciplinary aspects of electrochemical catalysis for fuel cell, environmental chemistry for air pollution control and waste recycling for composite materials. He has published more than 40 research articles in SCI journals.

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