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Preparation of Organosilicon Modified Epoxy Non-isocyanate Polyurethane Anticorrosion Coating and Its Performance Test
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[1]LI Hua,QI Pengfei,YANG Zhonghua.Preparation of Organosilicon Modified Epoxy Non-isocyanate Polyurethane Anticorrosion Coating and Its Performance Test[J].Journal of Zhengzhou University (Engineering Science),2023,44(03):104-109.[doi:10.13705/j.issn.1671-6833.2022.06.006]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 44 Number of periods: 2023 03 Page number: 104-109 Column: Public date: 2023-04-30
Title:
Preparation of Organosilicon Modified Epoxy Non-isocyanate Polyurethane Anticorrosion Coating and Its Performance Test
Author(s):
LI Hua1; 2; QI Pengfei2; YANG Zhonghua2
1.Henan Provincial Engineering Laboratory of Coal-based Ecological Fine Chemicals, Zhengzhou University, Jiyuan 459000, China; 2.School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
Keywords:
epoxy resin;  organosilicon;  non-isocyanate polyurethane;  anti-corrosion;  salt spray resistance
CLC:
TQ632. 4
DOI:
10.13705/j.issn.1671-6833.2022.06.006
Abstract:
In order to solve the problems of high toxicity of isocyanate in traditional epoxy polyurethane coatings, high brittleness, poor toughness, poor chemical resistance, and salt spray resistance of the cured coating, a new type of epoxy non-isocyanate polyurethane anticorrosive coating was prepared by using epoxy-cyclocarbonate synthesized by the reaction of silicone modified epoxy resin with carbon dioxide as resin base material (component A), polypropylene oxide diamine as curing agent base material (component B), and proper fillers and auxiliaries. The cured coating was characterized by FTIR and its performance was tested. The results showed that the coating could be dried at 80 ℃ for 20 min, with a smooth appearance and no cracking, blistering or peeling, and then after curing at room temperature for seven days, the hardness could reach 2H, the adhesion was 0 grade, and the salt spray resistance time could reach 1 500 h. The prepared silicone modified NIPU anticorrosive coating had good mechanical properties and corrosion resistance.
References:
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Last Update: 2023-05-09
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