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Citation: ZHU Yan, SUN Duo-Xian, LI Nan. Improvement of Epoxy Resin Electrophoresis Membrane Properties by SiO₂/PU Nanocomposites[J]. Chinese Journal of Applied Chemistry, ;2003, 20(12): 1184-1187. shu

Improvement of Epoxy Resin Electrophoresis Membrane Properties by SiO₂/PU Nanocomposites

1.
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072

Corresponding author: SUN Duo-Xian,
Received Date: 24 April 2003
Available Online: 20 July 2003
Fund Project: 天津市科技发展计划基金资助项目(013104111) (013104111)

The silica polyurethane(SiO₂/PU) nanocomposites, were prepared from cationic polyurethane ionomers as nanocapsules and tetraethoxysilane(TEOS) as precursor of SiO₂ by in-situ synthesis. The nanocomposites could be well dispersed in water-based epoxy resin. The physical properties of epoxy resin electrophoresis membrane mixed with SiO₂/PU nanocomposites were measured by dynamic light scattering and other methods. It was found that the physical properties such as impact strength, adhesive force and corrosion resistance of the SiO₂/PU nanocomposites were considerably improved. When the mass ratio of TEOS to PU was 30:100.
- cationic water-based polyurethane,
- nanocomposite,
- epoxy resin,
- silicon dioxide,
- electrophoresis membrane
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Improvement of Epoxy Resin Electrophoresis Membrane Properties by SiO₂/PU Nanocomposites