芳纶纤维的络合/涂覆固化复合改性及其天然硫化胶性能的研究  

Study on the effect of complexing and coating comprehensive modification of aramid fiber on performance of the reinforced natural rubber composite

作　　者：洪波[1,2] 杨诗润[1,2] 罗筑[1,2] 夏忠林[1,2] 向坤[1,2] 

机构地区：[1]贵州大学材料与冶金学院,贵阳550032 [2]国家复合改性聚合物材料工程技术研究中心,贵阳550014

出　　处：《化工新型材料》2014年第3期147-150,共4页New Chemical Materials

基　　金：贵州省橡胶科技重大专项(2013)资助

摘　　要：采用氯化钙(CaCl2)水溶液络合/环氧树脂(EP)体系,对芳纶纤维(AF)进行表面处理,进行力学性能测试,分析复合处理对纤维/天然橡胶(NR)复合物力学性能的影响,结果表明:当添加EP/AF=3%(质量分数,下同)时改性效果最佳,AF/NR复合材料的拉伸强度、300%定伸应力和撕裂强度与单用CaCl2处理的相比,分别提高了9.21%、18.41%和14.98%;并且使用DMA,XRD及SEM分析复合处理对复合物界面粘合的影响。Treated by calcium chloride （CaCl2）aqueous solution and acetone solution containing epoxy resin （EP） （and curing agent（2E4MZ））sequentially, aramid fibers（AF）were fully modified, and then mixed together with natural rub- ber by torque rheometer for masterbatch, and was dynamic cured simultaneously by EP. Results of performance test showed that comprehensive effects of the modification reached the best when EP/AF= 3 %wt. Compared to the composite without EP, the tensile strength, 300% stretch stress and tearing strength of AF/NR composite were increased by 9.21 %, 18. 41 and 14. 98%, respectively. And the results of DMA, XRD and SEM supported the conclusion of the increase of bond strength after modification.

关 键 词：环氧树脂 芳纶纤维 天然橡胶 界面粘合 母炼胶 

分 类 号：TQ342.72[化学工程—化纤工业]