国产高回弹性丁腈橡胶3306G的结构与性能研究  

Structure and Properties of Domestic High Resilience Nitrile Butadiene Rubber 3306G

作　　者：吕同策 李铁柱[2] 陈东平[2] 袁继耀 刘志琴[2] 张为健 刘莉[4] LYU Tongce;LI Tiezhu;CHEN Dongping;YUAN Jiyao;LIU Zhiqin;ZHANG Weijian;LIU Li(Shandong Laiyang Changyu Sealing Products Co.,Ltd,Laiyang 265200,China;Petrochina Lanzhou Petrochemical Company,Lanzhou 730060,China;Qingdao Haishengtai Material Co.,Ltd,Qingdao 266042,China;Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]山东莱阳市昌誉密封产品有限公司,山东莱阳265200 [2]中国石油兰州石化公司,甘肃兰州730060 [3]青岛海晟泰材料有限公司,山东青岛266042 [4]青岛科技大学高性能聚合物及成型技术教育部工程研究中心,山东青岛266042

出　　处：《橡胶科技》2024年第9期503-507,共5页Rubber Science and Technology

基　　金：兰州市科技计划项目(2022-1-6)。

摘　　要：研究国产高回弹性丁腈橡胶(NBR)3306G生胶的微观结构及胶料性能,并与NBR3365和NBR3370C进行对比。结果表明:3种NBR在微观结构上差异不大,相对分子质量从大到小依次为NBR3370C,NBR3306G,NBR3365;NBR3306G生胶和混炼胶的门尼粘度介于NBR3370C与NBR3365之间;NBR3306G混炼胶的硫化速度较慢,焦烧时间较长,抗焦烧性能较好;NBR3306G硫化胶具有较高的拉伸强度和拉断伸长率、较好的回弹性和抗压缩永久变形性能,但耐油性能略差。The microstructure of the raw rubber and the properties of the compound of domestic high resilience nitrile butadiene rubber(NBR)3306G were studied and compared with those of NBR3365 and NBR3370C.The results showed that there was little difference in the microstructure among the three types of NBR,and the relative molecular weights in descending order were NBR3370C,NBR3306G,and NBR3365.The Mooney viscosity of NBR3306G raw rubber and compound were between those of NBR3370C and NBR3365.The vulcanization speed of the NBR3306G compound was slower,the scorch time was longer,and the scorch resistance was better.NBR3306G vulcanizate had higher tensile strength and elongation at break,good resilience and resistance to compression permanent deformation,but slightly poor oil resistance.

关 键 词：丁腈橡胶 物理性能 回弹性 压缩永久变形 

分 类 号：TQ333.7[化学工程—橡胶工业]