Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings

In order to overcome the poor dispersion of traditional inorganic zinc-rich coating, addressing the sedimentation and the agglomeration caused by high zinc powder content and improve the anti-corrosion performance of coatings. In this paper, the molybdate intercalated hydrotalcite flake zinc layer d...

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Main Authors: Shuangxi Zhou, Weijie Li, Jianxin Li, Ruguang Li
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844024007709
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author Shuangxi Zhou
Weijie Li
Jianxin Li
Ruguang Li
author_facet Shuangxi Zhou
Weijie Li
Jianxin Li
Ruguang Li
author_sort Shuangxi Zhou
collection DOAJ
description In order to overcome the poor dispersion of traditional inorganic zinc-rich coating, addressing the sedimentation and the agglomeration caused by high zinc powder content and improve the anti-corrosion performance of coatings. In this paper, the molybdate intercalated hydrotalcite flake zinc layer double hydroxide (ZnAl–NO3-/LDH) was synthesized by hydrothermal synthesis method at first, and the KH560 modified the Mo/LDH flake zinc powder was further obtained by ion exchange method. The results show that the samples have a layered structure of hydrotalcite with good crystal structure through X-ray diffraction (XRD) and Fourier transform infrared (FT-IR), and the molybdate corrosion inhibiting ions inserted successfully into the interlayer structure of hydrotalcite. Meanwhile, different contents of pigments and fillers were added into the inorganic zinc-rich coatings. It was found that the Nyquist radius of curvature and modulus value of the coating were the largest with a pigment and filler content of 40 %, the maximum corrosion potential was −0.017V, and the minimum corrosion current density was 3.377 × 10−7 A-cm−2. The result indicates that the coating has the best corrosion resistance with 40 % pigment content, which has good application prospects in the fields of cross-sea bridges, natural gas and oil pipelines et al.
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spelling doaj.art-dd96d85f9f454f8096a5c7c9175bd4862024-02-03T06:38:20ZengElsevierHeliyon2405-84402024-01-01102e24739Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatingsShuangxi Zhou0Weijie Li1Jianxin Li2Ruguang Li3Guangzhou Maritime University, ChinaEast China Jiaotong University, ChinaGuangzhou Maritime University, ChinaGuangzhou Maritime University, China; Corresponding author.In order to overcome the poor dispersion of traditional inorganic zinc-rich coating, addressing the sedimentation and the agglomeration caused by high zinc powder content and improve the anti-corrosion performance of coatings. In this paper, the molybdate intercalated hydrotalcite flake zinc layer double hydroxide (ZnAl–NO3-/LDH) was synthesized by hydrothermal synthesis method at first, and the KH560 modified the Mo/LDH flake zinc powder was further obtained by ion exchange method. The results show that the samples have a layered structure of hydrotalcite with good crystal structure through X-ray diffraction (XRD) and Fourier transform infrared (FT-IR), and the molybdate corrosion inhibiting ions inserted successfully into the interlayer structure of hydrotalcite. Meanwhile, different contents of pigments and fillers were added into the inorganic zinc-rich coatings. It was found that the Nyquist radius of curvature and modulus value of the coating were the largest with a pigment and filler content of 40 %, the maximum corrosion potential was −0.017V, and the minimum corrosion current density was 3.377 × 10−7 A-cm−2. The result indicates that the coating has the best corrosion resistance with 40 % pigment content, which has good application prospects in the fields of cross-sea bridges, natural gas and oil pipelines et al.http://www.sciencedirect.com/science/article/pii/S2405844024007709Inorganic zinc-rich coatingCorrosion inhibitorHydrotalciteFlake zinc powder
spellingShingle Shuangxi Zhou
Weijie Li
Jianxin Li
Ruguang Li
Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings
Heliyon
Inorganic zinc-rich coating
Corrosion inhibitor
Hydrotalcite
Flake zinc powder
title Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings
title_full Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings
title_fullStr Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings
title_full_unstemmed Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings
title_short Impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings
title_sort impact of inhibitor loaded with pigments content on properties of inorganic zinc rich coatings
topic Inorganic zinc-rich coating
Corrosion inhibitor
Hydrotalcite
Flake zinc powder
url http://www.sciencedirect.com/science/article/pii/S2405844024007709
work_keys_str_mv AT shuangxizhou impactofinhibitorloadedwithpigmentscontentonpropertiesofinorganiczincrichcoatings
AT weijieli impactofinhibitorloadedwithpigmentscontentonpropertiesofinorganiczincrichcoatings
AT jianxinli impactofinhibitorloadedwithpigmentscontentonpropertiesofinorganiczincrichcoatings
AT ruguangli impactofinhibitorloadedwithpigmentscontentonpropertiesofinorganiczincrichcoatings