偶联剂改性废轮胎胶粉及其在力车胎胎侧胶中的应用  

Modification Waste Tire Rubber Powder by Using Coupling Agents and Its Application in Cycle Tire Sidewall

作　　者：卢娜[1,2] 辛振祥[1,2] 

机构地区：[1]青岛科技大学高分子科学与工程学院 [2]橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2017年第3期93-98,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金项目(51273098)

摘　　要：胶粉是废轮胎回收利用的主导方向,但其与基质橡胶的相容性差,从而限制了胶粉的应用。通过硅烷偶联剂Si69和钛酸酯偶联剂201对胶粉表面进行改性,以期获得与生胶相容性良好的改性胶粉。改性胶粉溶胶含量测试表明:胶粉表面交联网络破坏,溶胶含量增加。胎侧胶物理机械性能测试表明:在力车胎胎侧胶配方中,Si69和钛酸酯偶联剂201质量份分别为1.5和2.0时,胶粉改性效果最好,此时胎侧胶的综合性能最佳。Rubber powder is the leading direction of waste rubber tire recycling.But the low compatibility with matrix limited the application of the powder.In order to improve the compatibility, we modified the surface of the waste rubber powder with coupling agent of silane-coupling agents Si69 and organic titanate 201.After modification, the sol content of the rubber powder increased, this indicated that the surface crosslinking network of the waste rubber powder have been broken.Besides, in the formula of the cycle tire side wall, when the dosage of Si69 and organic titanate 201 were 1.5 and 2.0, the best modification result is gained.And the optimum comprehensive properties of the vulcanizated cycle tire sidewall rubber were obtained.

关 键 词：胶粉 偶联剂 改性 溶胶含量 物理机械性能 

分 类 号：TQ330.62[化学工程—橡胶工业]