LDHs 对 SBS 沥青流变性能及微观结构的影响

摘要

采用 LDHs 改性剂对 SBS 沥青进行改性,制备 LDHs/SBS 改性沥青,并对其流变性能和微观结构进行研究,探讨 LDHs 对 SBS 沥青性能的影响。试验结果表明,LDHs 的加入使沥青的复合模量增大,相位角减小；通过 X-ray 射线衍射、红外光谱及光学显微镜分析可知 LDHs 只是分散在 SBS 沥青中,没有发生化学反应或形成插层结构。%This paper aimed at manufacturing LDHs modified SBS bitumen,and researched the properties and mi-crostructure of LDHs/SBS modified bitumen,explored the influences of LDHs on the modified bitumen.The results indicated that the complex modulus of LDHs/SBS modified bitumen increased,while the phase angle decreased with the introduction of LDHs.Meanwhile,seen through the X-ray diffraction,optical microscope and infrared spectrome-ter,the structure of LDHs was dispersed in the SBS bitumen instead of intercalation.