双端硅改性SSBR合成及其在胎面胶中的应用研究  

Study on the synthesis of silicon-containing anionic initiators and their application in modified SSBR

作　　者：王妮妮[1,2] Wang Nini(Yanshan Branch of Beijing Research Institute of Chemical Industry,National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials,SINOPEC,Beijing 102500)

机构地区：[1]中国石油化工股份有限公司北京化工研究院燕山分院,北京102500 [2]橡塑新型材料合成国家工程研究中心,北京102500

出　　处：《石化技术》2024年第6期5-7,21,共4页Petrochemical Industry Technology

摘　　要：通过以自合成的硅锂为引发剂,二乙烯基苯DVB为偶联剂,氯代硅烷为封端剂合成双端含有硅烷改性的溶聚丁苯橡胶,并研究其性能特点。结果表明,自合成的官能化硅锂引发剂,可以稳定获得90%以上收率,储存稳定性好、活性高;合成的双端含有硅改性的SSBR,与以n-BuLi为引发剂的SSBR性能对比,耐磨性提高6.5%,压缩生热降低4℃,滚动阻力降低21.5%,体现出优异的燃油经济性。A solution polymerized styrene butadiene rubber modified with silane at both ends was synthesized using self synthesized lithium silicon as the initiator,divinylbenzene DVB as the coupling agent,and chlorosilane as the blocking agent,and its performance characteristics were studied.The results showed that the self synthesized functionalized lithium silicon initiator can stably obtain a yield of over 90%,with good storage stability and high activity;The synthesized double ended SSBR containing silicon modification showed a 6.5%increase in wear resistance,a 4℃decrease in compression heat generation,and a 21.5%decrease in rolling resistance compared to SSBR using n-BuLi as the initiator,demonstrating excellent fuel economy.

关 键 词：SSBR 硅锂引发剂 封端剂 加工性能 动态性能 

分 类 号：TQ333[化学工程—橡胶工业]