SBS苯乙烯含量对改性沥青性能的影响  

Effect of SBS Styrene Content on Modified Asphalt Properties

作　　者：靳昕东 赵泽鹏[1,2] 孔德智 薛文慧 滕国辉 JIN Xin-dong;ZHAO Ze-peng;KONG De-zhi;XUE Wen-hui;TENG Guo-hui(PetroChina Dushanzi Petrochemical Company Research Institute,Dushanzi 833699,China;Xinjiang Rubber and Plastic Materials Laboratory,Dushanzi 833699,China;Xinjiang University,Urumqi 830046,China;PetroChina Dushanzi Petrochemical Company,Dushanzi 833699,China)

机构地区：[1]中国石油独山子石化公司研究院,新疆独山子833699 [2]新疆橡塑材料实验室,新疆独山子833699 [3]新疆大学,乌鲁木齐830046 [4]中国石油独山子石化公司,新疆独山子833699

出　　处：《特种橡胶制品》2024年第1期25-28,78,共5页Special Purpose Rubber Products

摘　　要：聚合制得了10种线型结构SBS热塑性弹性体,并制备了与之对应的改性沥青;探讨了2个SBS相对分子质量区间[(6~10)×104和(12~14)×104]中SBS苯乙烯含量对其改性沥青性能的影响。结果表明,加入SBS均可改善沥青物理性能和流变性能;SBS相对分子质量对其改性沥青性能影响显著,SBS具有线性结构和较高相对分子质量时改性效果较好;增大SBS苯乙烯含量有利于改善改性沥青高温稳定性、硬度和抗车辙能力。Ten kinds of SBS thermoplastic elastomers with linear structure were prepared by polymerization,and the corresponding modified asphalt was prepared.The effects of SBS styrene content in two SBS relative molecular weight intervals[(6~10)×104 and(12~14)×104]on the properties of modified asphalt were discussed.The results showed that the addition of SBS could improve the physical and rheological properties of asphalt.The relative molecular weight of SBS had a significant effect on the properties of modified asphalt,and the modified effect was better when SBS had a linear structure and a higher relative molecular weight.Increasing the content of SBS styrene was beneficial to improve the high temperature stability,hardness and rutting resistance of modified asphalt.

关 键 词：改性沥青 SBS 苯乙烯含量 流变特性 

分 类 号：TQ336.9[化学工程—橡胶工业]