偶联法SBS聚合工艺控制及质量影响因素分析  

Process Control and Quality Influencing Factors Analysis of SBS Polymerized by Coupling Method

作　　者：陈安理 董志军 申海燕 李玉红 张洁 CHEN Anli;DONG Zhijun;SHEN Haiyan;LI Yuhong;ZHANG Jie(Rubber Operation of Dushanzi Department Company,PetroChina,Karamay 833699,China;Science&Technology Information Department of Dushanzi Petrochemical Company,PetroChina,Karamay 833699,China)

机构地区：[1]中国石油独山子石化公司橡胶部,新疆克拉玛依833699 [2]中国石油独山子石化公司科技信息处,新疆克拉玛依833699

出　　处：《橡胶科技》2024年第10期570-574,共5页Rubber Science and Technology

摘　　要：介绍偶联法苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)的聚合反应特点和工艺流程,分析产品质量影响因素,阐述产品质量调节和控制的要点,如有效控制聚合反应引发温度和压力,在聚合单元对聚合胶液定期多次取样,并通过凝胶渗透色谱分析聚合反应的稳定性和产品质量异常情况,及时对胶液的相对分子质量、偶联剂加料时间、偶联效率等进行相应调整。对SBS实际生产过程中的常见异常情况进行分析,并提出有针对性的解决措施,保证产品质量稳定。The polymerization characteristics and process of styrene-butadiene-styrene block copolymer(SBS)polymerized by coupling method were introduced,the factors affecting product quality were analyzed,and the key points of product quality adjustment and control were described,such as effectively controlling the polymerization initiation temperature and pressure,regularly sampling the polymerization glue in the polymerization unit and analyzing the stability of polymerization reaction and abnormal product quality through gel permeation chromatography analysis,so as to promptly adjust the relative molecular weight of the glue,coupling agent feeding time,coupling efficiency,etc.The common abnormal situations in the actual production of SBS were analyzed,and targeted measures were proposed to ensure stable product quality.

关 键 词：SBS 聚合反应 偶联效率 凝胶渗透色谱 质量控制 

分 类 号：TQ334.3[化学工程—橡胶工业]