Investigation of the Mechanism/effect of Surface Etching and Post-Process of Kevlar Fiber by Metal Ions
Polymer bulletin(2021)
摘要
The mechanism/effect of surface etching and post-process of Kevlar Fiber (KF) by metal ions were investigated in detail by etching Kevlar-29 fiber with different solutions. After the post-process of heat or solvent treatment, surface morphology changes of etched fibers were further discussed. Etching mechanisms have been demonstrated according to the results of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction instrument, atomic force microscopy, and scanning electron microscopy. The results exhibited that the coarsening of KF surface was caused by stress cracking instead of chain degradation. Furthermore, the cracks produced by stress cracking will extend lengthwise along the fiber surface due to the breakdown of hydrogen bonds. In addition, it is shown that the stress concentration appears on the fiber surface. In all, the etching mechanism consists of two parts: stress cracking and crack propagation. The proposed etching mechanism is of great significance to further improve the fiber surface and enhance the bond with the resin.
更多查看译文
关键词
Kevlar fiber,Surface etching,Post-process,Metal ions
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要