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Synthesis of DC–3074 and Z–1 Silicones Modified Epoxy Resin and Comparison of Salt Spray Resistance

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Title Synthesis of DC–3074 and Z–1 Silicones Modified Epoxy Resin and Comparison of Salt Spray Resistance
 
Creator Yang, Zhonghua
Fu, Gui
Li, Hua
 
Subject Hardness
Modification
Salt spray resistance
Silicone
 
Description 367-373
In order to improve the chemical resistance of epoxy resin and its toughness and corrosion resistance, in this paper,
silicone modified epoxy resin was prepared with epoxy resin and two kinds of silicones, Dow Corning DC–3074 and
Chenguang Z–1, as raw materials and dibutyltin dilaurate (DBTDL) as catalyst. The structure of the modified epoxy resin
was characterized by Fourier transform infrared (FTIR) spectrometer and its performance was tested. The results showed
that the epoxy resin modified by DC–3074 had better salt spray resistance compared with the Z–1. Therefore, the DC–3074
was selected as the epoxy resin E–51 modifier. The silicone modified resin was further synthesized with E–51 as the matrix
resin, 12.5% DC–3074 silicone as the modifier, and 0.5% DBTDL as the catalyst. The obtained cured coatings showed good
performance with the following results: product fineness of 20–25 μm, solid content of more than 95%, surface drying time
of 25 min, smooth appearance, hardness of 2 H, adhesion level of 0, and salt spray resistance time of 432 h. The prepared
modified epoxy resin coating has good salt spray resistance and good application prospect.
 
Date 2022-04-05T11:46:51Z
2022-04-05T11:46:51Z
2022-04
 
Type Article
 
Identifier 0975-1084 (Online); 0022-4456 (Print)
http://nopr.niscair.res.in/handle/123456789/59437
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source JSIR Vol.81(04) [April 2022]