writer：Binbo Wang, Songqi Ma*, Shifeng Yan, Jin Zhu
keywords：Carbon fiber composites, recycle, degradation, mild conditions, recovery, degradable thermosets
source：期刊
specific source：Green Chemistry
Issue time：2019年

Carbon fiber reinforced polymer (CFRP) is a structural composite widely used in automobile, aerospace and sporting goods, etc. because of its high strength-to-weight ratio, excellent fatigue and corrosion resistances. However, it is difficult to recycle mainly due to the permanent cross-linked thermosetting matrices. Recent years have witnessed the development of a new generation of CFRP based on degradable thermosets which can depolymerize on demand under mild conditions. Carbon fibers (CFs) can be reclaimed readily and retained their original high performance and value, and the degraded thermosetting matrices can also reused. In this tutorial review, the necessities of recycling CFRPs and developing readily recyclable CFRPs is presented. Critical differences between traditional and readily recyclable CFRPs are introduced. The readily recyclable CFRPs based on degradable thermosets are divided into several categories based on different degradable thermosets with various controlled-cleavable linkages such as ester bond, acetal linkages, Schiff base bond, disulfide bond, hexahydrotriazine structure, boronic ester bonds and di-N-benzylaniline linkage. The recycling mechanisms and synthetic routes of the degradable thermosets, and the recover and reuse process of CFs and resins are illustrated. The research progress on each recyclable CFRPs are described separately. Finally, conclusions and prospects are provided.

论文链接：https://pubs.rsc.org/en/content/articlelanding/2019/gc/c9gc01760g/unauth#!divAbstract