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(qū)材料科學(xué)Top期刊，中國(guó)科技期刊卓越行動(dòng)計(jì)劃高起點(diǎn)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(dú)特的納米效應(yīng)、高的比強(qiáng)度/比模量、優(yōu)異的可設(shè)計(jì)性、大的長(zhǎng)徑比和比表面積等優(yōu)點(diǎn)，在柔性電子、5G通訊和新能源汽車等諸多新興領(lǐng)域受到廣泛的關(guān)注。其中，聚對(duì)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(yōu)以及拉伸強(qiáng)度最高的一種先進(jìn)納米纖維。此外，PNF由于局部的分子鏈取向和規(guī)整結(jié)構(gòu)展現(xiàn)出比常規(guī)聚合物納米纖維更佳的導(dǎo)熱性能，備受研究者的關(guān)注和青睞。本文綜述了PNF的最新研究進(jìn)展，詳細(xì)介紹了PNF的三種制備方法（靜電紡絲法、機(jī)械解離法和質(zhì)子化法）及其各自的優(yōu)缺點(diǎn)，并闡述了PNF在阻燃、導(dǎo)熱、電絕緣、電磁和電池隔膜等應(yīng)用領(lǐng)域的發(fā)展現(xiàn)狀，指出了PNF當(dāng)前面臨的挑戰(zhàn)與前景展望。本綜述旨在為PNF的制備和應(yīng)用提供一定的理論指導(dǎo)，提升PNF及其復(fù)合材料在先進(jìn)應(yīng)用中的更多可能性，進(jìn)一步拓展其應(yīng)用范圍。
第一作者：唐林
郵件地址：tanglin@cqnu.edu.cn