不同门尼黏度反式-1，4-聚异戊二烯与炭黑的相互作用及其对硫化胶性能的影响  

Effect of interaction between trans-1,4-polyisoprene with different Mooney viscosity and carbon black on the properties of its vulcanizates

作　　者：刘付永[1] 杜爱华[1] 刘玉鹏[1] 姚薇[1] 黄宝琛[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2008年第4期263-267,共5页China Synthetic Rubber Industry

基　　金：国家自然科学基金(20274021)

摘　　要：研究了不同门尼黏度反式-1,4-聚异戊二烯(TPI)与炭黑N 330的相互作用及其对TPI硫化胶物理机械性能和疲劳性能的影响。结果表明,随TPI生胶门尼黏度增大,炭黑结合胶含量减少,炭黑分散性变差,增强作用减弱。未填充炭黑TPI硫化胶的100%定伸应力和拉伸强度随TPI门尼黏度的增大而显著提高;用炭黑增强后,不同门尼黏度TPI硫化胶的100%定伸应力和拉伸强度差别不大。不同门尼黏度TPI硫化胶的压缩生热和压缩永久变形在填充炭黑后均增大,其中低门尼黏度的增加幅度显著大于高门尼黏度者;不同门尼黏度TPI硫化胶压缩生热的变化主要由炭黑与橡胶之间的作用引起。生胶门尼黏度为50～80的TPI硫化胶的动态疲劳性能较好。The interaction of carbon black and trans-1, 4-polyisoprene（TPI） with different Mooney viscosity were investigated. The effect of this interaction on the properties of vlucanizates was also studied. The experimental results showed that with the increase of Mooney viscosity of TPI, the amount of bound rubber decreased, the dispersion degree of carbon black in TPI reduced and the reinforcing effect weakened. The modulus at 100% and tensile strength of crude vulcanizates of TPI observably increased with the increase of Mooney viscosity of TPI. Filled with carbon black, the modulus at 100% and tensile strength of TPI vulcanizates with different Mooney viscosity were in the same level. After filled with carbon black, the heat build-up and compression set of TPI vulcanizates with different Mooney viscosity were all increased, which of those with lower Mooney viscosity increased more remarkably. The differences of heat build-up and compression set of TPI vulcanizates with different Mooney viscosity depended on the interaction of carbon black and TPI. TPI vulcanizates with Mooney viscosity of 50 -80 had better fatigue resistance.

关 键 词：反式-1 4-聚异戊二烯 门尼黏度 结合橡胶 物理机械性能 耐疲劳性能 

分 类 号：TQ330.1[化学工程—橡胶工业]