微纳橡胶沥青的胶体结构分析  

Colloidal Structure Analysis of Micro-nano Rubber Asphalt

作　　者：王仕峰[1] 张传平 李晓民 杨渭 于晓晓 张璐 WANG Shifeng;ZHANG Chuanping;LI Xiaomin;YANG Wei;YU Xiaoxiao;ZHANG Lu(School of Chemistry and Chemical Engineering,Shanghai Jiao Tong Uninersily,Shanghai 200240;Gansu Prorince Transport Planning,Survey&Design Institute Co.,Ltd.,Lanzhou 730099;Gansu Provincial Highway Aviation Tourism Inestment Group Co.,Ltd.,Lanzhou 730099;Infrastructure of China Construction Group Co.,Ltd.,Bejing 100000)

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]甘肃省交通规划勘察设计院股份有限公司,兰州730099 [3]甘肃省公航旅建设集团有限公司,兰州730099 [4]中国建设基础设施有限公司,北京100000

出　　处：《石油沥青》2022年第2期40-43,62,共5页Petroleum Asphalt

摘　　要：橡胶沥青材料具有显著的长寿命低碳特点,但其性能的变异一直限制橡胶沥青的发展。大量实践表明橡胶溶混沥青具有高稳定性,但溶混机理尚不清楚。在综述不同橡胶沥青技术路线的发展、结构与性能基础上,着重分析了基于浅裂橡胶制备的微纳橡胶沥青的溶混机制及微观胶体结构,讨论了微纳橡胶与沥青的相互作用及相关官能团元素分布状况,提出了浅裂橡胶作为沥青第五组分的概念,总结了橡胶沥青与耐老化和低温脆性能提升的关系,以期为微纳橡胶沥青的应用提供理论基础。Rubber asphalt materials have the characteristics of low carbon emission and long life,howev-er,their variable characteristic limits further development.Plentiful practice indicates homogeneous rubber as-phalt has stable performances,but its mechanism is not clear.On the basis of summarizing the development,structure and performance of different rubber asphalt technology pavement,this paper focuses on the mix mechanism and colloidal structure of micro-nano rubber asphalt,in which crumb rubber is prepared by light pyrolysis rubber.The interaction between rubber and asphalt and the distribution of related elements are also discussed.As a result,the concept of micro-nano rubber as‘the fifh component’of asphalt is put forward.Relationship between rubber asphalt and aging resistance as well low temperature erack performance is summa-rized.This review is expected to provide a theoretical basis for the application of micro-nano rubber asphalt.

关 键 词：橡胶沥青 胶体结构 浅裂解 炭黑 改性机理 

分 类 号：U414[交通运输工程—道路与铁道工程]