模量增强剂HMZ在轮胎胎面胶和缓冲胶中的应用

Application of modulus promoter HMZ to tire tread and buffer

研究了模量增强剂HMZ在轮胎胎面胶和缓冲胶中的应用效果。试验结果表明 ,在胎面胶中加入 1 5份模量增强剂HMZ ,不改变其它组分用量 ;在缓冲胶中加入 2份模量增强剂HMZ ,适当减小炭黑用量 ,可增大硫化胶的3 0 0 %定伸应力、邵尔A型硬度和回弹值 ;胶料的门尼粘度有所下降 ,包辊性好 ,挤出和压延性能有所改善。试制的成品轮胎 6.5 0 -1610PR的耐久性达到 15 5 4h ,速度性能达到 13 0km·h- 1 。

The effect of modulus promoter HMZ on the properties of tire tread and buffer was investigated.The test results showed that the modulus at 300% elongation,Shore A hardness and rebound elasticity of vulcanizates increased by adding 1 5 phr of HMZ to tire tread without adjusting other ingredients and 2 phr of HMZ to tire buffer while reducing loading level of carbon black properly;and both compounds featured lower Mooney viscosity,more easily banding on roll and improved extrudability and calenderability.The endurance life of finished test tire 6 50-16 10PR reached 155 4 h and its speed reached 130 km·h -1 in high speed test.