不同老化条件对轮胎耐久性能及损坏形式的影响  

Effect of Different Aging Conditions on Durability and Damage Forms of

作　　者：崔晓 于子涵 林子云 孙佳佳 聂本梁 周鹏程 董凌波 CUI Xiao;YU Zihan;LIN Ziyun;SUN Jiajia;NIE Beniang;ZHOU Pengcheng;DONG Lingbo(Triangle Tire Co.,Ltd,Weihai 264200,China)

机构地区：[1]三角轮胎股份有限公司,山东威海264200

出　　处：《轮胎工业》2023年第7期441-444,共4页Tire Industry

摘　　要：研究氮氧老化、热氧老化和臭氧老化3种老化条件对轮胎耐久性能及损坏形式的影响。结果表明:热氧老化后轮胎耐久性能明显下降,氮氧老化后轮胎耐久性能略有下降,臭氧老化后轮胎耐久性能变化不大;氮氧老化和热氧老化后轮胎耐久损坏形式均为胎侧鼓包脱层,其中热氧老化后轮胎损坏更严重,而臭氧老化后轮胎耐久损坏形式为胎肩出现裂口;氮氧老化和热氧老化后剖析胎面胶的硬度和定伸应力增大,拉断伸长率减小,生热变化不大;臭氧老化对剖析胎面胶性能的影响不大。The effect of three aging conditions such as nitrogen oxide aging,thermo-oxidative aging and ozone aging on the tire durability and damage forms was studied.The results showed that the durability of tire decreased significantly after thermo-oxidative aging,decreased slightly after nitrogen oxide aging,and changed little after ozone aging.Usually,tire sidewall bulge and delamination occurred after nitrogen oxide aging and thermo-oxidative aging and tire damage was more serious after thermo-oxidative aging,while tire shoulder cracks occurred after ozone aging.After nitrogen oxide aging and thermo-oxidative aging,the hardness and modulus of the tread compound increased,the elongation at break decreased and the heat build-up changed little.Meanwhile,ozone aging had little effect on the properties of the tread compound.

关 键 词：氮氧老化 热氧老化 臭氧老化 轮胎 耐久性能 损坏形式 胎面胶 动态力学性能 

分 类 号：TQ336.1[化学工程—橡胶工业]