Lin Tang, Mingshun Jia, Mukun He, Qiqi Liu, Yuhan Lin, Yiting Yi, Xiaolin Liu, Xi Liu*, Yusheng Tang* and Junwei Gu*. Fabrication, applications and prospects for poly(p-phenylene benzobisoxazole) nanofibers. SusMat, 2024, 10.1002/sus2.245. 2023IF=18.7.（1區材料科學Top期刊，中國科技期刊卓越行動計劃高起點新刊）https://doi.org/10.1002/sus2.245
Abstract
Polymer nanofibers exhibit unique nanoscale effects, high specific strength and modulus, exceptional design flexibility, large aspect ratios, and substantial specific surface areas. These characteristics have drawn significant attention in emerging fields such as flexible electronics, 5G communications, and new energy vehicles. Notably, poly(p-phenylene benzobisoxazole) nanofibers (PNFs) present the best thermal stability and flame retardancy among all known polymer nanofibers. Furthermore, due to the highly oriented molecular chains and orderly structure, PNFs demonstrate superior thermal conductivity compared to conventional polymer nanofibers, thus garnering significant attention and favor from researchers.This paper summarizes the latest research progress of PNFs, detailing three preparation methods (electrospinning, mechanical dissociation, and protonation) along with their respective advantages and disadvantages. It also elucidates the current development status of PNFs in applications such as flame retardancy, thermal conduction, electrical insulation, electromagnetic shielding and battery separators, and discusses the challenges and prospects faced by PNFs. This paper aims to provide theoretical guidance for the preparation and application of PNFs, enhancing their potential in advanced applications, and further expanding their application scope.
聚合物納米纖維具有獨特的納米效應、高的比強度/比模量、優異的可設計性、大的長徑比和比表面積等優點，在柔性電子、5G通訊和新能源汽車等諸多新興領域受到廣泛的關注。其中，聚對苯撐苯并二噁唑納米纖維（PNF）是目前已知聚合物納米纖維中耐熱性能最佳、阻燃性能最優以及拉伸強度最高的一種先進納米纖維。此外，PNF由于局部的分子鏈取向和規整結構展現出比常規聚合物納米纖維更佳的導熱性能，備受研究者的關注和青睞。本文綜述了PNF的最新研究進展，詳細介紹了PNF的三種制備方法（靜電紡絲法、機械解離法和質子化法）及其各自的優缺點，并闡述了PNF在阻燃、導熱、電絕緣、電磁和電池隔膜等應用領域的發展現狀，指出了PNF當前面臨的挑戰與前景展望。本綜述旨在為PNF的制備和應用提供一定的理論指導，提升PNF及其復合材料在先進應用中的更多可能性，進一步拓展其應用范圍。
第一作者：唐林
郵件地址：tanglin@cqnu.edu.cn