硅烷偶联剂对芳纶的优化改性  

Study on modified aramid with silane coupling agent

作　　者：杨燕宁[1] 孟家光[1] 程燕婷[1] 刘晓巧[1] 

机构地区：[1]西安工程大学纺织与材料学院,西安710048

出　　处：《高科技纤维与应用》2017年第5期16-19,共4页Hi-Tech Fiber and Application

基　　金：国家支撑计划项目(2012BAF13B03);陕西省重点学科专项资金支助项目(2008169);陕西省产业用协同创新中心建设专项经费资助项目(2015ZX-02)

摘　　要：采用硅烷偶联剂KH-550对芳纶进行表面处理。通过单因素法分析硅烷偶联剂KH-550在不同处理条件(浓度、温度和时间)下芳纶的断裂强力和界面剪切强度;再通过正交实验法得到硅烷偶联剂KH-550改性芳纶的最佳方案。结果表明,硅烷偶联剂KH-550表面处理芳纶的最优工艺为:浓度20%,温度55℃,时间7 h;得到芳纶的界面剪切强度增加率远远高于断裂强力损失率,芳纶的断裂强力损失率为7.79%,界面剪切强度增加率为14.59%,有利于纤维与树脂界面的结合。The surface treatment of the aramid was carried out using the silane coupling agent KH-550. The breaking strength and interfacial shear strength of aramid coupling agent KH-550 under different treatment conditions（concentration, temperature and time） were analyzed by single factor method.The results show that the optimum process of surface treatment of aramid with silane coupling agent KH-550 is 20%, the temperature is 55 ℃ and the time is 7 h. The rate of increase of shear strength of aramid interface is much higher than that of fracture strength, the loss rate of breakage of aramid is 7.79%, and the increase rate of interfacial shear strength is 14.59%, which is beneficial to the combination of fiber and resin interface.

关 键 词：芳纶 硅烷偶联剂 改性处理 断裂强力 界面剪切强度 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]