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.
作者
尹佳杰
罗忠林
罗发亮
马琴
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)
出处
《橡胶工业》
CAS
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)。
