PTFE powders (CGM031; 200 mesh; Zhonghao Chenguang Research Institute of Chemical Industry, China) and PES powders (Jida High Performance Materials Co. Ltd., China) were used as received.
PTFE powders (CGM031; 200 mesh; Zhonghao ChenguangResearch Institute of Chemical Industry, China) and PESpowders (Jida High Performance Materials Co. Ltd., China)were used as received.