硬脂酸稀土在全钢巨型工程机械子午线轮胎胎圈护胶中的应用  

Application of Rare Earth Stearate in Bead Protector of All-steel Giant Off-The-Road Radial Tire

作　　者：陈垚坤 朱志鹏 黄晶晶 林杰 王剑锋 朱伟杰 CHEN Yaokun;ZHU Zhipeng;HUANG Jingjing;LIN Jie;WANG Jianfeng;ZHU Weijie(Haian Rubber Group Co.,Ltd,Putian 351254,China)

机构地区：[1]海安橡胶集团股份公司,福建莆田351254

出　　处：《轮胎工业》2024年第3期154-158,共5页Tire Industry

摘　　要：研究硬脂酸稀土等量替代防老剂4020在全钢巨型工程机械子午线轮胎胎圈护胶中的应用。结果表明:在胎圈护胶配方中用硬脂酸稀土等量替代防老剂4020后,胶料的硫化速率减慢,拉伸强度和拉断伸长率提高,阿克隆磨耗量减小;热氧老化后胶料的拉伸强度和拉断伸长率以及二者的保持率更高,耐老化性能更好,可以有效延长胶料的使用寿命。The application of rare earth stearate in equivalently replacing antioxidant 4020 in the bead protector of all-steel giant off-the-road radial tires was studied.The results showed that after replacing antioxidant 4020 with an equal amount of rare earth stearate in the bead protector formula,the vulcanization rate of the compound decreased,the tensile strength and elongation at break increased,and the Akron wear decreased.After thermal oxygen aging,the tensile strength,elongation at break and retention rate were higher,and the aging resistance was better,which could effectively extend the service life of the compound.

关 键 词：全钢巨型工程机械子午线轮胎 硬脂酸稀土 防老剂 胎圈护胶 物理性能 耐老化性能 

分 类 号：TQ336.1[化学工程—橡胶工业] TQ330.382