微藻生物油对橡胶/SBS改性沥青性能的影响  

Effect of Microalgae Bio Oil on the Properties of Rubber/SBS Modified Asphalt

作　　者：李晶[1] 林子博 孟凡钰 黄胜晶 李富云 LI Jing;LIN Zibo;MENG Fanyu;HUANG Shengjing;LI Fuyun(School of Chemistry and Chemical Engineering,Guangxi University,Nanning Guangxi 530004,China)

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《辽宁石油化工大学学报》2024年第4期18-24,共7页Journal of Liaoning Petrochemical University

基　　金：国家自然科学基金项目(52368057)。

摘　　要：为了改善橡胶粉与基质沥青的相容性,采用微藻生物油(MB)对橡胶粉进行改性,并与质量分数为5%的苯乙烯-丁二烯-苯乙烯(SBS)复合制备了改性沥青;通过红外光谱和扫描电子显微镜,分析了橡胶粉改性前后的变化;采用黏度、荧光、相分离测试,分析了改性前后橡胶在沥青中的分散性;通过动态剪切流变和多重应力蠕变恢复试验,分析了改性沥青的力学性能和耐老化性能。结果表明,MB的掺入提高混合体系中轻组分占比,促进胶粉(CR)在沥青中的溶胀发育,提高了改性沥青的贮藏稳定性、黏弹性和抗车辙性。In order to improve the compatibility between rubber powder and matrix asphalt,the rubber powder was modified by microalgae bio‐oil and compounded with SBS at 5%dosage to prepare modified asphalt.The changes of rubber powder before and after modification were analyzed by infrared spectroscopy and scanning electron microscopy;the dispersion of rubber in asphalt before and after modification was analyzed by viscosity,fluorescence and phase separation tests,and the mechanical properties and aging resistance of the modified asphalt were analyzed by dynamic shear rheology analysis and multiple stress creep recovery test.It was found that the incorporation of MB increased the proportion of light components in the mixing system,promoted the solubilization development of CR in asphalt,and improved the storage stability,viscoelasticity and rutting resistance of the modified asphalt.

关 键 词：废橡胶轮胎粉 SBS改性沥青 表面改性 微藻生物油 

分 类 号：TE626[石油与天然气工程—油气加工工程] U414[交通运输工程—道路与铁道工程]