热氧化处理和LiCl改性芳纶纤维对丁苯橡胶复合材料性能的影响  

Influence of thermal oxidation treatment and LiCl modified aramid fiber on property of SBR composite

作　　者：张豪 尹恋鹏 罗筑[1,2] 田瑶珠 王丽娥[1] 杨波 Zhang Hao;Yin Lianpeng;Luo Zhu;Tian Yaozhu;Wang Lie;Yang Bo(College of Materials&Metallurgy,Guizhou University,Guiyang 550025;Guizhou Rubber Composites Engineering Laboratory,Guiyang 550025)

机构地区：[1]贵州大学材料与冶金学院,贵阳550025 [2]贵州橡胶复合材料工程实验室,贵阳550025

出　　处：《化工新型材料》2021年第12期108-112,共5页New Chemical Materials

基　　金：低生热工程轮胎用SBR橡胶专用料的研发(黔科合支撑[2018]2184)。

摘　　要：提出了一种纤维复合改性方法来提高芳纶纤维与复合材料基体间的界面强度。首先用环境友好的热氧化法预处理芳纶纤维,有效地去除纤维表面杂质与涂覆层,同时活化纤维表面基团;然后使用氯化锂(LiCl)水醇溶液对芳纶纤维表面进行络合处理。对处理后的芳纶纤维表面的化学组成、微观形貌、单丝拉伸强度及芳纶纤维/丁苯橡胶复合材料的力学性能和动态机械性能进行了测试分析。结果表明:芳纶纤维经过复合的表面改性后,结晶度降低,表面粗糙度增大,表面被活化,其与橡胶基体的界面粘结性能得到改善。The composite modification method was proposed to improve the interface strength between aramid fiber and composite matrix.Firstly,environmentally friendly thermal oxidation was used to pretreatment aramid fiber,which can effectively remove the surface impurities and coating layer,and activated the surface groups of the fiber.Then,the surface of the aramid fiber was complexed with lithium chloride(LiCl)water alcohol solution,and the chemical composition,micromorphology,tensile strength of single filament,mechanical properties and dynamic mechanical properties of the aramid fiber/SBR composite were tested and analyzed.The results shown that the crystallinity of aramid fiber was reduced,the surface roughness was increased,the surface was activated,and the interface bonding property between aramid fiber and rubber matrix was improved.

关 键 词：芳纶纤维 热氧化处理 配位作用 复合材料 

分 类 号：TQ333.1[化学工程—橡胶工业]