全钢载重子午线轮胎胎肩垫胶配方优化  

Shoulder Pad Formula Optimization of Truck and Bus Radial Tire

作　　者：李再琴 姬贝贝 LI Zaiqin;JI Beibei(Huangguoshu Tire Co.,Ltd,Nanning 530000,China;Bayi Rubber Co.,Ltd,Zaozhuang 277800,China)

机构地区：[1]黄果树轮胎有限公司,广西南宁530000 [2]八亿橡胶有限责任公司,山东枣庄277800

出　　处：《橡胶科技》2020年第4期212-215,共4页Rubber Science and Technology

摘　　要：从硫化体系和补强体系入手优化全钢载重子午线轮胎的胎肩垫胶配方。结果表明:与半有效硫化体系胶料相比,普通硫化体系全钢载重子午线轮胎胎肩垫胶的硫化速度略慢,物理性能较好,耐热老化性能略差,生热略高,成品轮胎的耐久性能较好;添加白炭黑的胶料门尼粘度略高,门尼焦烧时间略短,硫化速度较慢;硬度、定伸应力和撕裂强度提高,拉伸强度、拉断伸长率、回弹值降低,生热减小,工艺性能较差,需要调整混炼工艺;添加白炭黑的普通硫化体系胎肩垫胶的综合性能较好。The shoulder pad formula of truck and bus radial tire,particularly,the vulcanization system and reinforcement system,was optimized.The results showed that compared with the semieffective vulcanization system,the curing rate of the shoulder pad of truck and bus radial tire with ordinary vulcanization system was slightly slower,physical properties were better,heat aging resistance was slightly worse,heat build-up was slightly higher,and endurance performance of the finished tire was better.The Mooney viscosity of the compound with silica was slightly higher,Mooney scorch time was slightly shorter,curing rate was slower,the hardness,modulus and tear strength increased,the tensile strength,elongation at break,rebound value,and heat build-up decreased,the processability was poor,and the mixing process needs to be adjusted.The comprehensive property of the shoulder pad with ordinary vulcanization system and silica was better.

关 键 词：硫化体系 补强体系 全钢载重子午线轮胎 胎肩垫胶 物理性能 生热 耐久性能 

分 类 号：U463.341.3[机械工程—车辆工程] TQ330.385[交通运输工程—载运工具运用工程]