The interface structure of nano-SiO2/PA66 composites and its influence on material's mechanical and thermal properties

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	The interface structure of nano-SiO2/PA66 composites and its influence on material's mechanical and thermal properties
	Wang HG(王宏刚)
刊名	Applied Surface Science
	2007
卷号	254 页码:1456-1462
关键词	Interface structure Nano-SiO2 Thermal properties Mechanical properties
ISSN号	0169-4332
通讯作者	张治军
中文摘要	The PA66-based nanocomposites containing surface-modified nano-SiO2 were prepared by melt compounding. The interface structure formed in composite system was investigated by thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). The influence of interface structure on material’s mechanical and thermal properties was also studied. The results indicated that the PA66 chains were attached to the surface of modified-silica nanoparticles by chemical bonding and physical absorption mode, accompanying the formation of the composites network structure.With the addition of modified silica, the strength and stiffness of composites were all reinforced: the observed increase depended on the formation of the interface structure based on hydrogen bonding and covalent bonding. Furthermore, the differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) showed that the presence of modified silica could affect the crystallization behavior of the PA66 matrix and lead to glass transition temperature of composites a shift to higher temperature.
学科主题	材料科学与物理化学
收录类别	SCI
语种	英语
WOS记录号	WOS:000251899400017
公开日期	2013-11-01
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4094]
专题	兰州化学物理研究所_固体润滑国家重点实验室兰州化学物理研究所_先进润滑与防护材料研究发展中心
推荐引用方式 GB/T 7714	Wang HG. The interface structure of nano-SiO2/PA66 composites and its influence on material's mechanical and thermal properties[J]. Applied Surface Science,2007,254:1456-1462.
APA	王宏刚.(2007).The interface structure of nano-SiO2/PA66 composites and its influence on material's mechanical and thermal properties.Applied Surface Science,254,1456-1462.
MLA	王宏刚."The interface structure of nano-SiO2/PA66 composites and its influence on material's mechanical and thermal properties".Applied Surface Science 254(2007):1456-1462.