Preparation and Protection Performance of AMT-GO/EP Coating Cured at Low Temperature

SUN Yi-xiang, WANG Yao, MAN Cheng, CUI Zhong-yu, WANG Xin, DONG Chao-fang

Surface Technology ›› 2022, Vol. 51 ›› Issue (7) : 169-175, 185.

PDF(8120 KB)
PDF(8120 KB)
Surface Technology ›› 2022, Vol. 51 ›› Issue (7) : 169-175, 185. DOI: 10.16490/j.cnki.issn.1001-3660.2022.07.016

Preparation and Protection Performance of AMT-GO/EP Coating Cured at Low Temperature

  • SUN Yi-xiang1, WANG Yao1, MAN Cheng1, CUI Zhong-yu1, WANG Xin1, DONG Chao-fang2
Author information +
History +

Abstract

This work aims to improve the corrosion resistance of epoxy resin cured at ?10 ℃. Herein, 5-Amino-1,3,4- thiadiazole-2-thiol modified graphene oxide (AMT-GO) were successfully prepared by solution blending method. The same amount of graphene oxide (GO) and AMT-GO fillers were introduced into epoxy resin, which cured at low temperature (?10 ℃). The corrosion protection performance of the coatings cured at low temperature was studied by salt spray test, low temperature-salt spray alternating test, adhesion test and water absorption test. The epoxy coating with the right amount of AMT-GO filler can cure well at ?10 ℃ after 72 h, forming a more compact cross-linked structure, and still has good anti-corrosion performance after 6 days of salt spray test. The water absorption of the AMT-GO/EP (2.77%) is about half of that of the pure epoxy coating (5%), and the adhesion of the AMT-GO/EP (5.53 MPa) is higher than that of the pure epoxy coating (4.01 MPa). AMT-GO can effectively prevent the infiltration process of corrosive medium, to improve the anti-corrosion coating performance. Besides, the coating will remain in the low temperature-salt alternating fog test is excellent anticorrosion performance.

Key words

graphene oxide; 5-amino-1,3,4-thiadiazole-2-thiol; low-temperature failure mechanism; alternative test; low-temperature curing

Cite this article

Download Citations
SUN Yi-xiang, WANG Yao, MAN Cheng, CUI Zhong-yu, WANG Xin, DONG Chao-fang. Preparation and Protection Performance of AMT-GO/EP Coating Cured at Low Temperature[J]. Surface Technology. 2022, 51(7): 169-175, 185
PDF(8120 KB)

Accesses

Citation

Detail

Sections
Recommended

/