POE用量对POE/BR共混物性能的影响  

Effect of POE Amounts on Properties of POE/BR Blends

作　　者：尹佳杰 罗忠林 罗发亮[1] 马琴[1] 路晶 刘永东 YIN Jiajie;LUO Zhonglin;LUO Faliang;MA Qin;LU Jing;LIU Yongdong(Ningxia University,State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering,Yinchuan 750021,China;Ningxia Shenzhou Tire Co.,Ltd,Pingluo 753400,China)

机构地区：[1]宁夏大学省部共建煤炭高效利用与绿色化工国家重点实验室,宁夏银川750021 [2]宁夏神州轮胎有限公司,宁夏平罗753400

出　　处：《橡胶工业》2022年第8期603-607,共5页China Rubber Industry

基　　金：宁夏回族自治区重点研发计划(对外合作专项)项目(2019BFH02018);宁夏高等学校一流学科建设项目(NXYLXK2017A04)。

摘　　要：为拓宽顺丁橡胶(BR)的应用范围,采用聚烯烃类热塑性弹性体(POE)改善BR的拉伸性能和抗撕裂性能,研究POE用量对POE/BR共混物性能的影响。结果表明:随着POE用量的增大,POE/BR共混物的t_(90)缩短,门尼粘度增大,拉伸强度和撕裂强度明显提高;当POE用量达40份时,POE/BR共混物的拉伸强度和撕裂强度与未添加POE的BR硫化胶相比均提高近1.7倍,且拉伸断面的裂纹扩展更加粗糙。In order to broaden the application range of cis-polybutadiene rubber(BR),polyolefin thermoplastic elastomer(POE)was used to improve the tensile properties and tear resistance of BR,the effect of POE amounts on the properties of POE/BR blends was studied.The results showed that with the increase of POE amount,the t_(90) of POE/BR blends was shortened,the Mooney viscosity increased,the tensile strength and tear strength increased significantly.When the amount of POE reached 40 phr,the tensile strength and tear strength of POE/BR blend were nearly 1.7 times higher than that of the BR vulcanizate without POE,and the crack propagation on the tensile fractured section was rougher.

关 键 词：顺丁橡胶 聚烯烃类热塑性弹性体 共混物 拉伸强度 撕裂强度 

分 类 号：TQ333.2[化学工程—橡胶工业] TQ334.2