【摘要】 以胜华 1 0 0 #沥青为原料 ,采用溶剂脱沥青工艺和溶剂再循环吸附色谱分离技术将沥青分成三组分 :富饱和烃组分 ( S)、富芳香烃组分 ( A)、富胶质组分 ( R)。根据微观形态结构的不同 ,考察了聚合物苯乙烯 -丁二烯 -苯乙烯 ( SBS)在不同组分中的存在形式 ,研究了沥青组分与聚合物的相容性。结果发现 :饱和分对 SBS起溶胀作用 ;而芳香分和胶质对 SBS部分溶解 ,整个体系呈两相结构。改性沥青要达到最佳性能 ,其饱和分、芳香分和胶质需达到一定配比更多还原

【Abstract】 Shenghua 100 # asphalt was separated into three components: saturates(S), aromatics(A) and resin(R) by solvent de asphalt process and solvent recycled adsorption chromatography separation technology To investigate the existed form of polymer SBS in various components, rich in saturates, aromatics or resin, the compatibility between asphalt and polymer was studied It was found that saturates would cause swelling; aromatics and resin could partially dissolve SBS, and the system of asphalt presented a dual phase structure Saturates, aromatics and resin in asphalt need to be in an appropriate proportion to make the modified asphalt reach the best performance status更多还原