不同硫化体系对环保型硬丁腈橡胶性能的影响  

Effect of different vulcanization systems on properties of environment-friendly hard nitrile rubber

作　　者：李冬红[1] 高卫光[1] 李彤霞[1] 潘广勤[1] 李晓强[2] 

机构地区：[1]中国石油兰州石化公司研究院,兰州730060 [2]西北橡胶塑料研究设计院,陕西咸阳712023

出　　处：《合成橡胶工业》2012年第3期172-174,共3页China Synthetic Rubber Industry

基　　金：中国石油天然气集团公司资助项目(2008 B-3404-01)

摘　　要：以松香酸皂与油酸皂组成的复合乳化体系制备的中试产品丁腈橡胶(NBR)为基胶,分别用硫黄体系和过氧化物体系进行硫化,研究了NBR混炼胶的硫化特性和硫化胶的物理机械性能、耐老化性能、耐油及耐寒性能,并与传统产品NBR 3604进行了比较。结果表明,采用硫黄体系时,NBR混炼胶的硫化程度较浅,硫化速率较慢;采用过氧化物体系时,NBR混炼胶的硫化程度较深,硫化速率较快,NBR胶料宜采用过氧化物硫化体系进行硫化;2种硫化体系下制得NBR硫化胶的物理机械性能与NBR3604硫化胶相差不大,过氧化物硫化体系制得NBR硫化胶的耐老化性能较好;与NBR 3604硫化胶相比,2种硫化体系下制得NBR硫化胶的耐寒性稍好,耐油性稍差。The pilot product of nitrile rubber（NBR） was synthesized with rosin soap and oleic acid soap as complex emulsifier system,and the product was vulcanized with sulfur and peroxide vulcanization systems respectively.The curing characteristics of NBR and mechanical properties,aging resistance,oil and cold resistances of NBR vulcanizates were studied and compared with those of traditional NBR 3604,The results showed that the sulfur vulcanized NBR had lower degree of vulcanization and slower vulcanization rate,but the peroxide vulcanized NBR had higher degree of vulcanization and faster vulcanization rate,so that the NBR was fitter to be vulcanized with peroxide.There were no evident difference between NBR 3604 and NBR vulcanized with the two vulcanizer systems in mechanical properties,but the peroxide vulcanized NBR had better aging resistance,and the two vulcanizers vulcanized NBR had better cold resistance and poor oil resistance.

关 键 词：环保型 硬丁腈橡胶 硫黄 过氧化物 硫化胶 物理机械性能 耐老化性能 耐油性能 

分 类 号：TQ333.7[化学工程—橡胶工业]