Learning from nature: Flexible cross-linkable full-bio-based waterborne S-PEEK sizing agent for constructing “hard-soft” structure on CF surface towards superior performance of CF/PEEK composites

Jiaming Guo, Yuan Yao, Jingyan Yuan, Y. G. Xie, Dongfeng Li, Fuyuan Song, Weibing Pei, Shubao Wen, Yuanqi Wu, Yu Liu