Asphaltene: structural characterization, molecular functionalization, and application as a low-cost filler in epoxy composites

被引：37
|
作者：
Wu, Hongchao [1 ]
Kessler, Michael R. [1 ,2 ,3 ]
机构：
[1] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA
[2] US DOE, Ames Lab, Ames, IA 50011 USA
[3] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA
来源：
RSC ADVANCES | 2015年 / 5卷 / 31期
关键词：
NUCLEAR-MAGNETIC-RESONANCE; BORON-NITRIDE; CRUDE OILS; NANOCOMPOSITES; SPECTROSCOPY; MORPHOLOGY; POLYMERS; BEHAVIOR; BITUMEN; SURFACE;
D O I：
10.1039/c5ra00509d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Asphaltene obtained by extraction from asphalt was investigated by different analytical techniques in order to characterize its composition, molecular structure and morphology. Then, the asphaltene molecules were successfully functionalized by 3-glycidyloxypropyltrimethoxysilane and 3-aminopropyltriethoxysilane as confirmed by thermogravimetric analysis, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. Finally, asphaltene/epoxy composites at four different loading levels were prepared and their thermo-mechanical properties were examined. The thermal analysis results indicated that asphaltene as a novel reinforcing filler in epoxy resin caused a significant increase in storage modulus of both glassy and rubbery regions, slightly increased the glass transition temperature without negatively affecting thermal stability, and reduced the overall cost of the material.
引用
收藏
页码：24264 / 24273
页数：10
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