老化对轮胎及轮胎材料性能的影响  

Effect of Aging on Performance of Tire and Its Materials

作　　者：张又文 马良清[1] 李红伟[1] 金汉杰 肖凌云[2] 王琰[2] ZHANG Youwen;MA Liangqing;LI Hongwei;JIN Hanjie;XIAO Lingyun;WANG Yan(China National Tyre Quality Supervision and Inspection Center,Beijing 100143,China;Defective Product Management Center of AQSIQ Beijing 100101 ,China)

机构地区：[1]国家橡胶轮胎质量监督检验中心,北京100143 [2]国家质检总局缺陷产品管理中心,北京100101

出　　处：《橡胶工业》2018年第5期548-551,共4页China Rubber Industry

基　　金：中国标准化研究院院长基金项目(282017Y-5304)

摘　　要：选定相同规格不同品牌的轮胎,用体积比为50/50的氮/氧混合气体充气,并置于65℃的老化房中加速老化5周,研究轮胎老化后耐久性能和轮胎材料性能的变化。结果表明:轮胎老化后耐久性能下降,不同品牌轮胎耐老化性能差异较大;老化后轮胎胎侧胶拉伸强度、拉断伸长率明显下降,定伸应力增大;带束层层间粘合强度明显下降;轮胎老化后存在较大安全隐患。In this study,the changes of tire durability and the properties of tire compounds after aging were investigated by using tires from different brands but with the same size. The tires were inflated using nitrogen/oxygen gas mixture with a volume ratio of 50/50 and then aged in the accelerated process for 5 weeks at 65 ℃. The results showed that,the durability of tires decreased after aging and the aging resistance of different brands tires was quite different. The tensile strength and elongation at break of the aged sidewall compound decreased significantly while the modulus increased. The adhesive strength between belt layers was reduced significantly after aging. Aged tires had potential safety problems.

关 键 词：轮胎 加速老化 耐久性能 粘合强度 安全性 

分 类 号：TQ336.1[化学工程—橡胶工业]