Performance study of polyurethane/silicon carbide composite repairing asphalt pavements

被引：14
作者：
Li, Li [1 ]
Li, Ji [1 ]
Zhao, Yali [1 ]
Li, Wanjie [1 ]
Wang, Hongbin [2 ]
Yao, Liang [2 ]
机构：
[1] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Peoples R China
[2] Tai Yuan Lu Bang Sci & Technol Ltd, Taiyuan 030008, Peoples R China
来源：
JOURNAL OF POLYMER ENGINEERING | 2014年 / 34卷 / 04期
关键词：
asphalt pavement; composite; polyurethane; silicon carbide; SILANE COUPLING AGENTS; NANOCOMPOSITES; NANOPARTICLES; DEPOSITION; PARTICLES; COATINGS; FILMS;
D O I：
10.1515/polyeng-2013-0215
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyurethane (PU)/silicon carbide composites, which can rapidly repair cracked asphalt pavements, were synthesized by addition polymerization. The materials were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and mechanical performance tests. Liquid diphenylmethane diisocyanate (L-MDI) type prepolymer/toluene diisocyanate (TDI-80) type prepolymer weight ratio, curing agent and silane coupling agent 3-aminopropyltriethoxysilane (KH550) were investigated mainly in this paper. In addition, silicon carbide was treated with KH550. Results show that the crystal structure of silicon carbide had subtle changes and the correct amount of KH550 can enhance the mechanical performance and thermal endurance.
引用
收藏
页码：369 / 377
页数：9
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