烷基苯酚二硫化物在航空子午线轮胎气密层中的应用

Application of Alkyl Phenol Disulfide in Inner Liner Compound of Aircraft Radial Tire

主要研究烷基苯酚二硫化物作为硫黄给予体在天然橡胶/氯化丁基橡胶/高顺式顺丁橡胶并用气密层胶中的应用。结果表明:添加烷基苯酚二硫化物同时对硫黄和促进剂用量进行微调,胶料的拉伸性能明显提高,拉断永久变形减小,耐热老化性能改善,老化前后30万次屈挠均未出现裂口;胶料工艺性能良好,可以满足生产要求。

The application of alkyl phenol disulfide as sulfur donor in the inner liner compound using natural rubber/chlorobutyl rubber/high cis-butadiene rubber blend system was studied.The results showed that,adding the alkyl phenol disulfide and fine-tuning the amount of sulfur and accelerator at the same time,the tensile properties of the vulcanizate were significantly improved,the permanent set at break was reduced,the heat aging property was improved,and there was no crack detected in the test specimen after 300000 times flexing.The processing property of the compound was good and could meet the production requirements.