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Citation: ZHAO Cai-Xian, ZHANG Ping, XU Fu, JIANG Yong, WANG Xia-Yu. Preparation of Novel PA6/EP/SiO₂ Nanocomposites by In Situ Polymerization[J]. Chinese Journal of Applied Chemistry, ;2008, 25(9): 1042-1046. shu

Preparation of Novel PA6/EP/SiO₂ Nanocomposites by In Situ Polymerization

ZHAO Cai-Xian ^a,b,c ,
ZHANG Ping ^a,c,, ,
XU Fu ^a,c ,
JIANG Yong ^a,c ,
WANG Xia-Yu ^b,c

1.
a Insitute of Fundamental Mechanics and Material Engineering, Xiangtan university, Xiangtan 411105;
2.
b College of Chemistry, Xiangtan University, Xiangtan 411105;
3.
c Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105

Corresponding author: ZHANG Ping,
Received Date: 27 August 2007
Available Online: 5 December 2007
Fund Project: 湖南省科技厅重点项目(03JZY1002) (03JZY1002)湖南省教育厅青年基金(05B004)资助项目 (05B004)

Novel PA6/epoxy resin(EP)/SiO₂ nanocomposites were prepared by mixing caprolactam with hydrolysis solution of modified precursor,which was synthesized by tetraethoxysilane(TEOS) and epoxy resin,via in situ polymerization.The structure and properties of the nanocomposites were investigated by fourier transform infrared spectroscopy(FTIR),mechanical tests,dynamic mechanical analysis(DMTA),scanning electron microscopy(SEM),transmission electron microscopy(TEM),atomic force microscopy(AFM) and thermal gravimetric analysis(TGA),etc.The results show that silica particles were homogeneously dispersed in the material matrix.The diameter of nano-silica is about 30 nm.The mechanical properties show a tendency to increase and then decrease with the increase of the silica content and have maximum values at 3% silica content.Compared with those of pure PA6,the tensile strength,impact strength,flexural strength and elongation at break of PA6/EP/silica nanocomposites were improved by about 28%,360%,43% and 45%,respectively.
- polyamide 6,
- silica,
- epoxy resin,
- in situ polymerization,
- nanocomposite
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Preparation of Novel PA6/EP/SiO₂ Nanocomposites by In Situ Polymerization