加工工艺对多官能化丁基橡胶/天然橡胶并用胶性能的影响  

Influence of Processing Technology on Properties of MFIIR/NR Blend

作　　者：邵红琪[1,2] 周晓兰[1,2] 冯宇[1,2] 赵季若[1,2] 冯莺[1,2] 

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 [2]山东省橡塑材料与工程重点实验室,山东青岛266042

出　　处：《橡胶工业》2014年第9期536-540,共5页China Rubber Industry

摘　　要：采用不同加工工艺制备多官能化丁基橡胶(MFIIR)/天然橡胶(NR)并用胶,并对其硫化特性、加工性能、物理性能和动态力学性能进行研究。结果表明:采用预硫化工艺后MFIIR/NR并用胶的t10和t90明显延长,表明硫化剂在2种橡胶相中的分散更加均匀;并用胶的物理性能得到改善,拉伸强度、拉断伸长率和撕裂强度明显增大。预硫化后混炼胶在应变为100%时的储能模量增大,硫化胶的Payne效应减弱。预硫化后并用胶的网络结构更加均匀,两种橡胶可以达到很好的共硫化。The multifunctional IIR （MFIIR）/NR blend was prepared by using different processing technology, and the curing behavior, processability, physical properties and dynamic mechanical proper- ties of the blend were investigated. The results showed that, the tl0 and tg0 of MFIIR/NR blend after prevulcanization were obviously prolonged,indicating that the curing agents were dispersed uniformly in rubber phase. After the prevulcanization process, the physical properties of the blend were im- proved. Especially, the tensile strength, elongation at break and tear strength increased significantly. The storage modulus at large strain（100%） increased after the prevulcanization,which implied the Payne effect of the vulcanizate was weakened. The network structure of MFIIR/NR blend after pre- vulcanization was more uniform, and MFIIR and NR could be well co-vulcanized.

关 键 词：多官能化丁基橡胶 天然橡胶 并用胶 加工工艺 性能 

分 类 号：TQ333.6[化学工程—橡胶工业] TQ332.43