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Vol. 25 No. 9 (2013): Vol 25 Issue 9

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Study on Toughening Mechanism of Epoxy Adhesive Modified by Nano-SiO2

https://doi.org/10.14233/ajchem.2013.14121
Xi Wang
CNPC Tubular Goods Research Institute, No. 32 Xi’an Dianzi Second Road, Shaan Xi, Xi'an 710065, P.R. China
R.M. Wang
Department of Applied of Chemistry, School of Science, Northwestern Polytechnical University, Xi'an 710072, P.R. China
D.T. Qi
CNPC Tubular Goods Research Institute, No. 32 Xi’an Dianzi Second Road, Shaan Xi, Xi'an 710065, P.R. China
Wei Bin
CNPC Tubular Goods Research Institute, No. 32 Xi’an Dianzi Second Road, Shaan Xi, Xi'an 710065, P.R. China
H.B. Li
CNPC Tubular Goods Research Institute, No. 32 Xi’an Dianzi Second Road, Shaan Xi, Xi'an 710065, P.R. China
Nan Ding
CNPC Tubular Goods Research Institute, No. 32 Xi’an Dianzi Second Road, Shaan Xi, Xi'an 710065, P.R. China
X.H. Cai
CNPC Tubular Goods Research Institute, No. 32 Xi’an Dianzi Second Road, Shaan Xi, Xi'an 710065, P.R. China

Corresponding Author(s) : R.M. Wang

npu18101@163.com; wangxi0215@hotmail.com

Asian Journal of Chemistry, Vol. 25 No. 9 (2013): Vol 25 Issue 9

Abstract

Epoxy resin adhesives are widely used in various sectors, particularly in the aerospace and automotive industries. However, the solidification of the three-dimensional network structure of pure epoxy resin, which causes greater density and brittleness, results in poor system resilience. With the ultimate goal of improving the resilience of epoxy resin, nano-sized SiO2 particles were introduced to improve the adhesion strength of both modified and unmodified epoxy adhesive. The results indicated increases of shearing strength from 16.66-Mpa to 18.01 -Mpa, impact strength from 15.4 -kJ/m2 to 33.68- kJ/m2 and flexural strength from 70.5 -Mpa to 80.94 Mpa.

Keywords

Nano-SiO2 Epoxy resin Modified
Wang, X., Wang, R., Qi, D., Bin, W., Li, H., Ding, N., & Cai, X. (2013). Study on Toughening Mechanism of Epoxy Adhesive Modified by Nano-SiO2. Asian Journal of Chemistry, 25(9), 4839–4841. https://doi.org/10.14233/ajchem.2013.14121
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