硫化体系加料方式对天然橡胶/顺丁橡胶并用胶性能的影响  

Effect of Feeding Methods of Vulcanization System on Properties of NR/BR Blends

作　　者：庞松 徐新建[2] 陈家辉 吴友平[1] PANG Song;XU Xinjian;CHEN Jiahui;WU Youping(Beijing University of Chemical Technology,Beijing 100029,China;Zhongce Rubber Co.,Ltd,Hangzhou 310018,China)

机构地区：[1]北京化工大学北京市新型高分子材料制备与成型加工重点实验室,北京100029 [2]中策橡胶集团有限公司,浙江杭州300018

出　　处：《橡胶工业》2020年第2期135-141,共7页China Rubber Industry

基　　金：国家自然科学基金资助项目(51333004)

摘　　要：研究硫化体系加料方式对天然橡胶(NR)/顺丁橡胶(BR)并用胶性能的影响。结果表明:NR/BR并用胶的撕裂强度受硫化体系加料方式影响较大,邵尔A型硬度、拉伸强度和拉断伸长率对硫化体系的加料方式容忍度较高;当氧化锌、硬脂酸和硫黄全部加入BR相中时,NR/BR并用胶的耐磨性能好且大应变下的动态损耗低,综合性能较好。The effect of the feeding methods of vulcanization system on the properties of natural rubber(NR)/butadiene rubber(BR)blends was studied.The results showed that the tear strength of NR/BR blends was greatly affected by the feeding methods of the vulcanization system,while the tolerance of Shore A hardness,tensile strength and elongation at break was relatively high.When zinc oxide,stearic acid and sulfur were all added into BR phase,NR/BR blends had good wear resistance,low dynamic loss under large strain,and good overall performance.

关 键 词：天然橡胶 顺丁橡胶 并用胶 硫化体系 加料方式 混炼工艺 交联密度 物理性能 耐磨性能 动态损耗 

分 类 号：TQ330.63[化学工程—橡胶工业] TQ332.2