丁腈橡胶改性白炭黑对全钢载重子午线轮胎胎面胶性能的影响

Effect of NBR Modified Silica on Properties of Tread Compound of Truck and Bus Radial Tire

研究丁腈橡胶(NBR)改性白炭黑对全钢载重子午线轮胎胎面胶性能的影响。结果表明:随着NBR1846用量的增大,胶料的门尼粘度增大,ts1和t90缩短;采用先混炼NBR和白炭黑再加天然橡胶的工艺,且NBR1846用量为8份时,硫化胶的物理性能较好,阿克隆磨耗量较小,压缩生热较低,抗湿滑性能较高,滚动阻力较低;NBR3305的改性效果优于NBR1846。

The effect of NBR modified silica on the properties of the tread compound of truck and bus radial tire was investigated. The results showed that,as the addition level of NBR1846 increased, the Mooney viscosity of the tread compound increased, and ts1 and t90 were shortened. When NBR was mixed with silica first,and the addition level of NBR1846 was 8 phr,the vulcanizates showed better physical properties, lower Akron abrasion loss, lower heat build-up, higher wet skid resistance and lower rolling resistance. It was found that the modification effect of NBR3305 was better than that of NBR1846.