抗湿滑轮胎胎面胶配方的研究

Study on Tread Compound Formulation of Wet Skid Resistance Tire

研究羧基改性溶聚丁苯橡胶(SSBR)、丁腈橡胶(NBR)和高性能橡胶助剂Nanoprene在抗湿滑轮胎胎面胶中的应用。结果表明:在胎面胶配方中,以SSBR等量替代ESBR,胶料的门尼焦烧时间和t90延长,硫化胶的300%定伸应力和撕裂强度增大,湿抓着性提高,压缩生热降低,耐磨性能变化不大;加入20份Nanoprene,胶料的门尼焦烧时间和t90延长,硫化胶的300%定伸应力增大,湿抓着性提高,压缩生热降低,耐磨性能下降;加入5份NBR,胶料的硫化特性、硫化胶的物理性能和压缩生热变化不大,湿抓着性提高,耐磨性能下降。

The application of carboxyl solution styrene-butadiene rubber （SSBR）,nitrile-butadiene rubber （NBR） and high-performance rubber additive Nanoprene in the tread compound of wet skid re sistance tire was investigated. The results showed that, by using SSBR to replace equal weight of emul sion styrene-butadiene rubber in the tread compound the Mooney scorch time and t90 of the compoundextended, the tensile stress at 300 % strain and tear strength of the vulcanizates increased, the wet grip performance was improved, the heat build-up decreased, and the wear resistance was kept unchanged. By adding 20 phr Nanoprene, the Mooney scorch time and t90 of the compound extended, the tensile stress at 300% strain of the vulcanizates increased, the wet grip performance was improved, the heat build up was reduced,and the wear resistance decreased. By adding 5 phr NBR,the curing behavior of the compound,and the physical properties and heat build-up of the vulcanizates changed little, the wet grip performance was improved, and the wear resistance decreased.