摘要
芳香族聚酰胺纤维因具有高强高模、轻质耐热、抗冲耐磨等优势,被广泛应用于军民两用领域。由于分子结构中存在大量的生色基团,芳香族聚酰胺纤维易吸收紫外辐射而引发不可逆的光老化损伤,制约其使役性能。本文概述了芳香族聚酰胺纤维的紫外光敏特性,分析总结了其光老化机理,并重点介绍了目前抗紫外老化的主要改性研究方法。
Aromatic polyamide fibers have broad applications in military and civilian fields,due to their excellent advantages such as ultrahigh strength and modulus,light weight,heat-resisting,impact and fatigue resistance.However,owing to the large number of chromogenic groups in the molecular structure,aromatic polyamide fibers easily absorb ultraviolet radiation and cause irreversible photo-aging damage,which restricts their service performance.This paper summarizes their ultraviolet sensitivity characteristics,photo-aging mechanism,and highlights the current main anti-ultraviolet aging modification methods.
作者
魏枫
裴勇勇
徐海兵
颜春
刘东
欧阳少波
祝颖丹
WEI Feng;PEI Yong-yong;XU Hai-bing;YAN Chun;LIU Dong;OUYANG Shao-bo;ZHU Ying-dan(Faculty of Material Metallurgy and Chemistry,Jiangxi University ofScience and Technology,Ganzhou 341000,China;Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology,Ningbo Institute of Material Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《复合材料科学与工程》
CAS
北大核心
2022年第6期115-121,共7页
Composites Science and Engineering
基金
国家自然科学基金(U1809218,U1909220,51803225)
浙江省自然科学基金(LY21E030012)
宁波市科技创新2025重大专项(2020Z057)
江西省自然科学基金资助项目(2020BAB214021)
江西省教育厅科学技术研究资助项目(GJJ200809)
浙江省科技创新人才项目(2019R52029)。
关键词
芳香族聚酰胺纤维
抗紫外老化
光老化机理
改性
复合材料
aromatic polyamide fiber
anti-ultraviolet aging
photo-aging mechanism
modification
composites
