SBS改性沥青的混合原理与过程

Mixing Principle and Procedure of SBS Modified Asphalt

利用荧光显微照相获得苯乙烯 -丁二烯 -苯乙烯嵌段共聚物 (SBS)改性沥青的显微结构 ,结合化工技术中的混合方法理论定性描述了SBS在沥青中的混合过程 ,SBS在沥青中的溶胀、分散是一个动态平衡的过程 ,当剪力场撒去时 ,SBS相会随这一动态过程进行的程度而发生聚集 (不相容 )或稳定 (相容 )

Microstructure of SBS modified asphalt can be got by using the Fluorescence optical microscopy.Then the mixing procedure of SBS modified can be analyzed by using the mixing principle.It is found that the swell and dispersion of SBS in asphalt is a dynamic balanceable procedure.If the shearing force is removed,the SBS phase will congregate (unstable) or disperse (stable).It is decided by the dynamic balanceable procedure.