知识与财富的链接
介绍苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)的溶液聚合工艺及反应机理,根据产物的凝胶渗透色谱分析得到SBS聚合反应偶联效率等参数,结合聚合反应过程分析偶联效率异常的原因,通过设定适当的偶联剂添加量、调整顺控程序及工艺参数、定期检修偶联剂流量调节阀、控制最终反应温度等措施,有效控制SBS聚合反应的偶联效率,保证SBS产品的质量稳定性。
The solution polymerization process and mechanism of styrene-butadiene-styrene block copolymer（SBS） were introduced.The coupling efficiency and other parameters were obtained by the gel permeation chromatography spectrogram of SBS product.The reasons for the abnormal coupling efficiency were analyzed according to the polymerization process.By setting the appropriate addition amount of coupling agent,adjusting the sequence control program and process parameters,regularly overhauling the coupling agent flow control valve,controlling the final reaction temperature and other measures,the coupling efficiency of SBS polymerization could be effectively controlled,the quality stability of SBS products were ensured.
