【摘要】 研究了对叔丁基酚醛树脂用量对NR/NBR/环氧化天然橡胶 (ENR)共混物动态力学性能的影响。加对叔丁基酚醛树脂的NR/NBR/ENR共混物有 2个动态力学损耗峰 (分别对应共混物的玻璃化转变温度Tg1和Tg2 )。随着对叔丁基酚醛树脂用量 (0～ 15份 )增大 ,共混物的Tg1基本不变 ,Tg2 则逐渐升高 ;温度为Tg1的共混物损耗因子 (tanδ)峰值变化不大 ,温度为Tg2 的共混物tanδ峰值则逐渐增大。通过调节对叔丁基酚醛树脂用量可以改变共混物在 0和 6 5℃附近的tanδ值 ,从而获得抗湿滑性能好、滚动损失小的新型胎面材料更多还原

【Abstract】 The influence of the p tert butyl phenolic resin level on the dynamic properties of NR/NBR/ENR blend was investigated.The NR/NBR/ENR blend had two dynamic loss peaks (corresponding to T g1 and T g2 of blend respectively). T g1 of the blend changed little,but T g2 increased gradually as the level of p tert butyl phenolic resin increased (from 0 to 15 phr);the peak tan δ of the blend at T g1 changed little,but the peak tan δ of the blend at T g2 increased gradually.the tan δ values of the blend at 0 and 65 ℃ could be changed by adjusting the level of p tert butyl phenolic resin to obtain a new type of tread compound with good wet traction and low rolling resistance.更多还原