微纳再生胶在轮胎胎侧胶中的应用  

Application of micro-nano reclaimed rubber in tire sidewall rubber

作　　者：马澜 张震 彭宗林[1] 杜爱华[2] 韩兆群 王仕峰[1] MA Lan;ZHANG Zhen;PENG Zong-lin;DU Ai-hua;HAN Zhao-qun;WANG Shi-feng(School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Jiangsu Zhonghong Environment Technology Co Ltd,Jiangyin 214400,China)

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]青岛科技大学高分子科学与工程学院,山东青岛266000 [3]江苏中宏环保科技有限公司江阴,江苏江阴214400

出　　处：《合成橡胶工业》2022年第1期65-68,共4页China Synthetic Rubber Industry

基　　金：国家重点研发计划项目(2019 YFE 012146)。

摘　　要：将载重子午胎胶粉通过单螺杆反应挤出获得不同再生程度的再生胶,并将其与天然橡胶和顺丁橡胶共混以替代传统典型胎侧胶配方体系中的全部软化剂及部分炭黑,考察再生胶对胎侧胶结构与性能的影响。结果表明,随着再生胶再生程度的提高,其溶胶含量增加,凝胶从几十微米演变为微纳米尺度;胎侧共混胶的硫化效率明显增大,耐老化性能和耐疲劳性能更好,而耐屈挠疲劳性能更是共混传统再生胶的10倍以上,有望用于制备高性能胎侧胶。The truck tire rubber powder was reclaimed through a single screw extruder and then reclaimed rubber with different reclaiming degrees was obtained.After being blended with natural rubber/cis-1,4-polubutadiene rubber to replace all the sof-teners and part of the carbon black in the traditional typical sidewall formula,its influences on the structure and performance of sidewall rubber were also discussed.The results showed that as the reclaiming degree increased,the sol content of reclaimed rubber increased,and the gel particles of reclaimed rubber evolved from tens of microns to micro-nano scale.Moreover,the vulcanization efficiency of the blend increased significantly with better aging resistance and flexing fatigue resistance which was more than ten times that of the traditional reclaimed rubber.It was expected to be used in the preparation of high-performance sidewall rubber.

关 键 词：再生橡胶 胎侧胶 凝胶尺寸 耐屈挠疲劳性能 

分 类 号：TQ335.2[化学工程—橡胶工业]