SBS对环氧沥青性能的影响研究  

Effects of SBS on Performance of Epoxy Asphalt Binder

作　　者：赵满喜[1,2] 徐松[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]内蒙古自治区本级政府投资非经营性项目代建管理局,呼和浩特010010

出　　处：《武汉理工大学学报》2015年第11期16-20,共5页Journal of Wuhan University of Technology

基　　金：国家"863"高技术研究发展计划(2013AA031602)

摘　　要：将苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)用于改性环氧沥青(EA),研究了SBS对EA的固化粘度、相容性和力学性能的影响。结果表明:SBS的加入提高了EA固化过程中的粘度,显著改善了沥青和环氧树脂的相容性,抑制了EA固化过程中的分层离析。同时SBS提高了EA的断裂伸长率、储能模量和软化温度,而降低了EA的玻璃化转变温度和拉伸强度,改善了EA的高温稳定性和低温韧性。Styrene-butadiene-styrene copolymer （SBS） was used to modify epoxy asphalt （EA） to investigate the effect of 8138 on the curing viscosity, compatibility and mechanical property of EA. The experimental results show that the addi- tion of SBS enhances the viscosity of EA during the curing and remarkably improves the compatibility between asphalt and epoxy resin, restraining the separation of EA during the curing process. Meanwhile, SBS increases the elongation at break, storage modulus and softening temperature and decreases the glass transition temperature and tensile strength of EA, which improves the high temperature stability and low temperature toughness.

关 键 词：环氧沥青 SBS 粘度 相容性 力学性能 

分 类 号：U414[交通运输工程—道路与铁道工程]