防护蜡在轮胎胎侧胶中的应用研究  

Application of Protective Wax in Sidewall Compound of Tire

作　　者：马德龙 赵红霞 李云峰 崔婷婷 MA Delong;ZHAO Hongxia;LI Yunfeng;CUI Tingting(National Engineering Technology Research Center for Rubber Chemicals,Shandong Yanggu Huatai Chemical Co.,Ltd,Yanggu 252300,China)

机构地区：[1]山东阳谷华泰化工股份有限公司国家橡胶助剂工程技术研究中心,山东阳谷252300

出　　处：《轮胎工业》2022年第6期351-356,共6页Tire Industry

摘　　要：研究防护蜡在轮胎胎侧胶中的应用效果,选用改性防护蜡HG72B和高温防护蜡H7075B与进口防护蜡进行对比。结果表明:在轮胎胎侧胶中添加防护蜡,能改善胶料的加工安全性,显著提高硫化胶的耐屈挠疲劳、耐热氧老化及动态力学性能;3种防护蜡在40℃下的臭氧老化防护效果相当;防护蜡HG72B的晶核小,形成的蜡膜致密度和均匀度高、厚薄适中,耐喷霜性能突出;防护蜡HG72B具有优异的50℃高温臭氧老化和耐天候老化防护效果,对于改善胎侧胶的外观具有显著的优势,高温防护蜡H7075B的防护效果略次于防护蜡HG72B,明显优于进口防护蜡。The application effect of protective wax in the sidewall compound of tires was studied,and the modified protective wax HG72 B and high temperature protective wax H7075 B were compared with an imported protective wax. The results showed that,by adding protective wax in the sidewall compound,the processing safety of the compounds could be improved and the flexural fatigue resistance,thermo-oxidative aging resistance and dynamic mechanical properties of the vulcanizates could be significantly improved. The ozone aging protective effect of the three tested protective waxes at 40 ℃ were comparable. The protective wax HG72 B had small crystal nucleus,the formed wax film had high density and uniformity,moderate thickness and outstanding blooming resistance. The protective wax HG72 B had excellent protective effect against high-temperature ozone aging at 50 ℃ and weathering aging,and had significant advantages in improving the appearance of the sidewall compound. The protective effect of high-temperature protective wax H7075 B was slightly inferior to that of protective wax HG72 B and obviously better than that of the imported protective wax.

关 键 词：防护蜡 轮胎 胎侧胶 臭氧老化 天候老化 龟裂 喷霜 

分 类 号：TQ330.382[化学工程—橡胶工业] U463.341[机械工程—车辆工程]