改性氯磺化聚乙烯橡胶在全钢载重子午线轮胎气密层胶中的应用

试验研究改性氯磺化聚乙烯(MCSM)在全钢载重子午线轮胎气密层胶配方中的应用.结果表明,随着MCSM用量的增加,硫化胶的300％定伸应力、拉伸强度和弹性下降,拉断伸长率增大.在全钢载重子午线轮胎气密层胶配方中采用10份MCSM等量部分替代溴化丁基橡胶,可以保证胶料加工安全性、硫化特性和物理性能、气密性、加工工艺性能达到生产配方性能要求,同时可以降低成本.

Application of Modified Chlorosulfonyl-polyethylene Rubber in Inner Liner Compound of Truck and Bus Radial Tire

The application of modified chlorosulfonyl-polyethylene rubber (MCSM) in the inner liner compound of truck and bus radial tire (TBR) was investigated.The results showed that,with the increase of MCSM addition level,the modulus at 300% elongation,tensile strength and resilience of the vulcanizates decreased,and the elongation at break increased.With 10 phr MCSM to replace BIIR by equal weight in the inner liner compound of TBR tire,the processing safety,curing characteristics,physical properties, gas barrier property and processability were comparable to that of the original formulated compound in production,while the production cost was reduced.