Preparation of Anticorrosive Coating with No Solvent for Repairing-Reference-Cited by-同舟云学术

Preparation of Anticorrosive Coating with No Solvent for Repairing

Published:2021-08-01 Issue:8 Volume:16 Page:1288-1295
ISSN:1555-130X
Container-title:Journal of Nanoelectronics and Optoelectronics
language:en
Short-container-title:Journal of Nanoelectronics and Optoelectronics

Author:

Yang Zhou¹,Chen Qing-Guo¹,Wang Xin-Rui¹,Zhang Xiao-Man²,Chi Ming-He¹

Affiliation:

1. Key Laboratory of Engineering Dielectrics and Its Application, Harbin University of Science and Technology, Harbin, 150080, China

2. Harbin Electric Machinery Company Limited, Harbin, 150040, China

Abstract

The solvent-free fast-curing coating for repairing is prepared using polyurea as matrix and graphite nanoplatelets (GNPs) as fillers. The effects of GNPs on the coating are studied. The coating is prepared by HDI tripolymer and polyetheramine. The GNPs is functionalized (f-GNPs) by aminopro-pyltriethoxysilane (APTES) in mixture of water and ethanol. The performances of the coatings are tested by salt spray time, polarization curves and electrochemical impedance. The coating presents solvent-free and fast-curing characteristics and is suitable for repairing. The f-GNPs provide both physical barrier and coulomb block for the coating. When the f-GNPs added amount is 0.6 wt%, the salt spray resistance time of the coating is more than 420 h, and the corrosion potential is –0.6428 V. The effects of GNPs on coating are investigated. The results can provide a new idea for preparation of anticorrosive coating used for repairing, and can benefit in-depth understanding of the influence of f-GNPs on the coatings. The coating for repairing is prepared by adding f-GNP as fillers. The anticorrosive mechanism and performance of the coating are discussed in detail.

Publisher

American Scientific Publishers

Subject

Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials

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