摘要
苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)因中间嵌段聚异戊二烯结构上具有甲基侧链,与SBS相比,其具有良好的粘结力和相容性。本文探讨了SIS对基质沥青的改性效果,试验表明采用SIS改性可提高基质沥青的软化点、降低针入度、增大黏度、提升剥离强度。初步研究表明,SIS应用于自粘聚合物改性沥青防水卷材配方中,可提升卷材的剥离强度和持黏性。
Compared with SBS, SIS possesses good bonding force and compatibility because of methyl side chain of intermediate block of polyisoprene. This article discusses modification effect of SIS on asphalt and testing results show that SIS modification can improve the softening point, decrease penetration, increase viscosity and pealing strength. Preliminary research shows that SIS applied in self-adheres polymer modified asphalt waterproofing membrane can improve the peeling strength and sticky of the membrane.
出处
《中国建筑防水》
2015年第14期6-8,共3页
China Building Waterproofing
