不同胶粉对RNR/NR/BR/SBR轮胎垫带材料性能的影响  

Effect of rubber powder on properties of RNR/NR/BR/SBR tire pad material

作　　者：冯宇 雷惠举 韩佳赤 徐聪 郎钺 赵光 计强 王重 FENG Yu;LEI Huiju;HAN Jiachi;XU Cong;LANG Yue;ZHAO GuangJI Qiang;WANG Zhong(School of Materials Science and Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China;Chaoyang Huaxing Wanda Tyre Limited Company Chaoyang 122100,China)

机构地区：[1]沈阳化工大学材料科学与工程学院,辽宁沈阳110142 [2]朝阳华兴万达轮胎有限公司,辽宁朝阳122100

出　　处：《弹性体》2021年第5期69-74,共6页China Elastomerics

摘　　要：在胎面再生胶(RNR)/天然橡胶(NR)/顺丁橡胶(BR)/丁苯橡胶(SBR)为基体的载重轮胎垫带材料中加入不同种类胶粉,考察不同胶粉对RNR/NR/BR/SBR载重轮胎垫带材料的力学性能、门尼黏度、动态力学性能等的影响。结果表明,胶粉的加入可以改善RNR/NR/BR/SBR载重轮胎垫带的性能,当加入粒径为250μm胎面胶粉10份时效果最好,抗拉强度提高了30%,断裂伸长率提高了19%。同种胶粉粒径越小,补强效果越好,储能模量(G)′越大;胶粉粒径相同时,胎面胶粉补强效果更好,G′更大。与未加入胶粉的垫带材料相比,加入胶粉的垫带材料的门尼黏度有所增加,加入的胶粉粒径越小,门尼黏度越低。The mechanical properties,Mooney viscosity and dynamic mechanical properties of recycled tread rubber(RNR)/natural rubber(NR)/butadiene rubber(BR)/styrene butadiene rubber(SBR)cushion material were investigated by adding rubber powder into the cushion material of truck tire.The results show that the addition of rubber powder can improve the properties of RNR/NR/BR/SBR load tire cushion belt.When 10 phr of tread rubber powder with particle size of 250μm was added,the effect was the best,with the tensile strength increased by 30%and the elongation at break increased by 19%.The smaller the particle size of the same rubber powder,the better the reinforcing effect,the greater the storage modulus G′;when the particle size of rubber powder is the same,the reinforcing effect of tread rubber powder is better and G′is larger.Compared with the cushion material without rubber powder,the Mooney viscosity of the cushion material with rubber powder increased.The smaller the particle size of the added rubber powder,the lower the Mooney viscosity.

关 键 词：胶粉 垫带 轮胎 力学性能 

分 类 号：TQ335[化学工程—橡胶工业]