摘要
在环己烷中对苯乙烯 丁二烯 苯乙烯的三嵌段共聚物 (SBS)进行磺化改性 ,以磺化度为指标 ,通过正交实验得到的最佳工艺条件为 :反应时间 2h ,反应温度 40℃ ,浓硫酸用量 12 % (相对于SBS的质量 ) ,SBS的质量浓度 0 .2 0g mL。SBS的平均磺化度达 0 .5 4mmol g。粘接性能试验表明 。
SBS was modified by sulfonation in cyclohexane, and the influential factors upon the sulfonation degree of SBS were investigated by orthogonal experiments. The optimal conditions for sulfonation of SBS were found as follows: reaction time 2 h, reaction temperature 40 ℃, quantity of conc. sulfuric acid used=12%( w ) of SBS, and mass concentration of SBS=0.20 g/mL. The average sulfonation degree of SBS was 0.54 mmol/g. The binding tests show that sulfonated SBS binder has higher adhesion to polar materials than SBS binder.
出处
《精细石油化工》
CAS
CSCD
北大核心
2002年第5期23-25,共3页
Speciality Petrochemicals
基金
广西工学院青年科学研究基金项目
