Effect of Layered Double Hydroxides on Ultraviolet Aging Resistance of SBS Modified Bitumen Membrane

查看全文 作　　者：[1]徐松;[1]余剑英;XUE [2]Lihui;SUN [2]Yubin;XIE [3]Dong

机构地区：[1]State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology;[2]Center for Materials Research and Analysis, Wuhan University of Technology;[3]School of Materials Science and Engineering,Wuhan University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》索引2015年第30卷第3期,共6页

基　　金：Funded by the National Basic Research Program of China(973 Program)(No.2014CB932104) 摘　　要：Layered double hydroxides(LDHs)/styrene-butadiene-styrene(SBS) copolymer modified bitumen was prepared by melt blending. The effect of LDHs on the ultraviolet(UV) aging behavior of SBS modifi ed bitumen was investigated. The changes of chemical structures of modifi ed bitumen before and after UV aging were characterized by Fourier transform infrared spectroscopy(FTIR). The results show that LDHs obviously reduce the variation of softening point and low temperature fl exibility of SBS modifi ed bitumen under different UV radiation intensities, which indicates that the UV aging resistance performance of SBS modifi ed bitumen is improved effectively by LDHs. Compared with SBS modifi ed bitumen, the changes of carbonyl, sulfoxide and butadienyl of LDHs/SBS modified bitumen decrease significantly after UV aging according to FTIR analysis, demonstrating that the oxidation and degradation reactions of SBS modifi ed bitumen were restrained effectively by adding LDHs. 关键词：SBS改性沥青老化性能紫外线双氢氧化物丁二烯-苯乙烯共聚物傅里叶变换红外光谱分析层状双金属氢氧化物 LDHS

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Effect of Layered Double Hydroxides on Ultraviolet Aging Resistance of SBS Modified Bitumen Membrane

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