TPI/HVBR共混物用于胎面胶的研究

在传统的胎面胶配方NR/SBR1500（并用比为60/40）和SBR1712/SBR1500（并用比为60/40）的基础上，采用高反式-1，4-聚异戊二烯（TPI）和/或高乙烯基聚丁二烯橡胶（HVBR）取代或部分取代SBR1500，研究共混物的物理性能和动态粘弹性。结果表明，添加了TPI和HVBR的胎面胶，其力学性能可满足使用要求，定伸应力和抗屈挠疲劳性有较大提高，滚动阻力和动态生热明显降低，而抗湿滑性仍有较高的保持率，达到了滚动阻力和抗湿滑性能的良好兼备。相对而言，NR/TPI/HVBR并用胎面胶具有更小的滚动阻力和生热，而SBR/TPI/HVBR并用胎面胶具有更好的抗湿滑性、抗屈挠疲劳性和耐磨性。;TPI and/or HVBR were used to replace or partly replace SBR1500 in the traditional NR/SBR1500（60/40）and SBR1712/SBR1500（60/40） tread compounds.The physical properties and dynamic viscoelasticity of various blend compounds were investigated.The results showed that the test tread compounds with TPI and/or HVBR possessed satisfactory mechanical properties，increased modulus and flex fatigue property，significantly reduced rolling resistance and dynamic heat build-up，and better wet traction，and by comparison，NR/TPI/HVBR tread compound had lower rolling resistance and heat build-up，and SBR/TPI/HVBR tread compound had better wet traction，flex fatigue property and wear resistance