炭黑和白炭黑填充环氧化反式-1,4-聚异戊二烯硫化胶的性能研究  

Vulcanizate properties of carbon black and silica-filled epoxidized trans-1,4-polyisoprene

作　　者：罗章[1] 李斌[1] 邵华峰[1] 姚薇[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：《弹性体》2015年第5期1-4,共4页China Elastomerics

基　　金：国家自然科学基金项目(51273100)

摘　　要：首次研究了炭黑和白炭黑对水相悬浮法合成环氧化反式-1,4-聚异戊二烯(ETPI)硫化胶性能的影响。结果表明,炭黑对ETPI硫化胶的正硫化时间影响不大,而白炭黑对ETPI硫化胶的正硫化时间有明显的延迟效应;炭黑和白炭黑使ETPI硫化胶的100%定伸强度和撕裂强度明显提高,白炭黑填充的ETPI比炭黑填充的撕裂强度提高的幅度更大,并且随着加入份数的增加而增大,断裂伸长率和回弹值逐渐降低,邵尔A硬度逐渐增大;动态力学性能(DMA)测试显示,对于水相悬浮法合成的ETPI硫化胶,炭黑和白炭黑使40℃以上tanδ峰值明显提高,有利于阻尼材料宽温域的要求,但0℃时tanδ值逐渐下降,抗湿滑性降低;60℃时tanδ值上升,滚动阻力提高,对轮胎胎面胶的使用不利。For the first time to study the vulcanizate properties of carbon black and silica-filled epoxidized trans-1,4-polyisoprene（ETPI）that was synthesized by water phase suspensionmethod.The results showed that carbon black-filled has little effect for vulcanization time of ETPI vulcanized rubber,while silica-filled has significant delayed effects for vulcanization time of ETPIvulcanized rubber;Carbon black and silica-filled make 100% tensile strength and tear strength obviously improved,the improved magnitude of tear strength of silica-filled is greater than carbon black-filled.With the increase of filled parts,the elongation decreases,rebound value gradually decreases and Shore A hardness increases.DMA tests showed that for the ETPI vulcanized rubber synthesized by water phase suspension methods,carbon black and silica-filled make the tanδpeak values of above 40℃ significantly increased,this meet the wide temperature range requirements of damping material,but with the filler increase,the 0℃tanδpeakvalue gradually decreased,and correspond to the wet skid resistance descended;the 60℃tanδpeakvalue increased,correspond to the rolling resistance increased,it is disadvantage for applying ETPI in the tire tread rubber.

关 键 词：环氧化反式聚异戊二烯硫化胶 炭黑 白炭黑 力学性能 动态黏弹性 

分 类 号：TQ333.3[化学工程—橡胶工业]