天然橡胶/溴化丁基橡胶并用胶性能的研究  

Study on Properties of NR/BIIR Blend

作　　者：邢祥菊[1] 李建芳[1] 张艳芬[1] 肖建斌[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：《橡胶工业》2014年第3期157-160,共4页China Rubber Industry

摘　　要：研究并用比对天然橡胶(NR)/溴化丁基橡胶(BIIR)并用胶硫化特性、物理性能、耐热空气老化和耐臭氧老化性能及不同温度下损耗因子(tanδ)的影响。结果表明:NR并用BIIR后,胶料的硫化速度加快;随着BIIR用量的增大,NR/BIIR并用胶的物理性能下降,耐热空气老化和耐臭氧老化性能提高;并用一定量BIIR能明显改善NR的耐屈挠性能;随着BIIR用量的增大,NR/BIIR并用胶的tanδ增大,其在较宽的温度范围内具有较大的损耗和较好的减震性能。The effect of blending ratio on the curing behavior, physical properties, hot air aging re- sistance,ozone aging resistance and change of loss factor（tanδ） at different temperature of NR/BIIR blend was investigated. The results showed that, the curing speed of NR compound increased after blending with BIIR. As the content of BIIR increased,the physical properties of NR/BIIR blends re- duced,and the hot air aging resistance and ozone aging resistance improved. The flexing resistance of NR was significantly improved after blending with a certain content of BIIR. As the content of BIIR in- creased,the tanδ of NR/BIIR blend increased,and NR/BIIR blend possessed greater loss and better damping characteristics in a wide temperature range.

关 键 词：天然橡胶 溴化丁基橡胶 物理性能 耐老化性能 耐屈挠性能 损耗因子 

分 类 号：TQ332.4[化学工程—橡胶工业] TQ333.6