Characterization of protective performance of epoxy reinforced with nanometer-sized TiO2 and SiO2

被引：175

作者：

Shi, Hongwei ^{[1
]}

Liu, Fuchun ^{[1
]}

Yang, Lihong ^{[1
]}

Han, Enhou ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Peoples R China

来源：

PROGRESS IN ORGANIC COATINGS | 2008年 / 62卷 / 04期

关键词：

electrochemical impedance spectrum; Nano-TiO2; NanO-SiO2; glass transition temperature; fourier transform infrared spectra;

D O I：

10.1016/j.porgcoat.2007.11.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

Nano-TiO2 particles was uniformly dispersed and prepared into concentrated nano-paste. The effects of nano-TiO2 particles on the performance of epoxy resin on 2024-T3 aluminum alloy were investigated. The effects of nano-SiO2 with gamma-glycidoxypropyltrimethoxy silane modification or without modification on the performance of epoxy resin were also studied. It was found that the hardness of epoxy resin was improved by the incorporation of 1 wt.% nano-TiO2 particles or nano-SiO2. The results of electrochemical impedance spectrum (EIS) and salt spray test indicated that the addition of nano-TiO2/SiO2 significantly improved the corrosion resistance of epoxy resin. Fourier transform infrared spectra (FT-IR) proved that the new absorptions at 1070 and 1090cm(-1) on silane-treated nano-SiO2 particles, which can evidence the ring structure of Si-O-Si. The formation of layered ring structure of nano-SiO2 can be explained for the enhancement of the corrosion resistance and hardness of nano-SiO2/epoxy composite. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：359 / 368

页数：10

共 18 条

[1]

Functionalized inorganic/organic nanocomposites as new basic raw materials for adhesives and sealants - Part 2 [J].