环氧化SIS合成工艺改进及其应用研究

利用原位过氧甲酸法合成环氧化SIS(简称ESIS),通过多步加料法研究其合成工艺的改进方法。结果表明,分步加料法可以克服传统合成工艺中环氧值不易控制、散热困难等问题,同时降低甲酸的使用量40%,减少了副反应,合成的ESIS环氧值4.05 mol/kg,提高了19.1%。此外,为了均相反应合成ESIS,在低浓度的合成体系中引入乙醇作为相容剂。均相反应可以在室温下以极快的反应速度完成,均相合成的ESIS环氧值为0.37 mol/kg。将ESIS用于配制热熔压敏胶,在初粘力、持粘力和剥离强度方面都比SIS热熔压敏胶有较显著的提高。

Study on improvement of epoxidation process of SIS and application

ESIS is synthesized by using the in-situ performic method.The improvement method for synthesis process is studied by multistep dropping addition.The results show that the difficulties such as epoxy value control and heat elimination existed in the traditional process can be solved well by multistep dropping addition process.By the new synthesis process,the amount of formic acid is reduced by 40%and side reaction is decreased.The maximum epoxy value is 4.05 mol/kg,increasing by 19.1%,In addition,the alcohol ...