Effect of Organophilic Montmorillonite on Ther-mal-oxidative Aging Behavior of SBS Modified Bitumen Crack Filling Material

武汉理工大学学报-材料科学版(英文版), 2009, 24(4): 673-676. doi: 10.1007/s11595-009-4673-9

^1, , ^2, , ^3, , ^4,

1.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

2.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

3.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

4.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

基金项目: the National Natural Science Foundation of China(50773061)

Effect of Organophilic Montmorillonite on Ther-mal-oxidative Aging Behavior of SBS Modified Bitumen Crack Filling Material

YU Jianying ^1, , WANG Xilin ^2, , KUANG Dongliang ^3, , ZHANG Henglong ^4,

1.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

2.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

3.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

4.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

Keywords： organophilic montmorillonite

Styrene-butadiene-styrene(SBS)modified bitumen crack filling material with or-ganophilic montmorillonite(OCFM)was prepared by melt blending.X-ray diffraction analysis shows that the interlayer spacing of organophilic montmorillonite(OMMT)in OCFM is widened and an exfoliated structure may be formed.Thermal-oxidative aging behavior of OCFM and SBS modified bitumen crack filling material(SCFM)was investigated.The experimental results indicate that the rate of thermal-oxidative aging of OCFM is much slower than that of SCFM,which can be attributed to barrier of exfoliated structure of OCFM to oxygen.

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