Effect of layered double hydroxides on ultraviolet aging resistance of SBS modified bitumen membrane

被引：0
|
作者：
Song Xu
Jianying Yu
Lihui Xue
Yubin Sun
Dong Xie
机构：
[1] Wuhan University of Technology,State Key Laboratory of Silicate Materials for Architectures
[2] Wuhan University of Technology,Center for Materials Research and Analysis
[3] Wuhan University of Technology,School of Materials Science and Engineering
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2015年 / 30卷
关键词：
SBS modified bitumen; layered double hydroxides; UV aging;
D O I：
暂无
中图分类号：
学科分类号：
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 modified bitumen was investigated. The changes of chemical structures of modified 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 flexibility of SBS modified bitumen under different UV radiation intensities, which indicates that the UV aging resistance performance of SBS modified bitumen is improved effectively by LDHs. Compared with SBS modified 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 modified bitumen were restrained effectively by adding LDHs.
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页码：494 / 499
页数：5
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