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Antistatic paint for steel structure surface and preparation method thereof

An anti-static coating and steel structure technology, applied in conductive coatings, coatings, etc., can solve problems such as coating peeling and cracking, achieve high adhesion, improve flexibility, increase wettability and adhesion

Inactive Publication Date: 2014-05-14
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inorganic zinc-rich coating made of tetraethyl orthosilicate has strict requirements on the surface treatment of the substrate during construction, and must be sandblasted to Grade, and prone to problems such as coating peeling, cracking, etc.

Method used

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  • Antistatic paint for steel structure surface and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this embodiment, the antistatic material on the surface of the steel structure is formed by mixing zinc-aluminum alloy powder slurry and tetraethyl orthosilicate slurry at a mass ratio of 4:1; in terms of mass percentage, the zinc-aluminum alloy powder slurry includes 75 parts of zinc aluminum alloy powder, 3 parts of absolute ethanol, 2 parts of n-butanol, 1 part of furfural furfuryl alcohol resin as a modifier, 0.5 parts of coupling agent bis(1,2-triethoxysilyl)ethane, 0.5 parts of organic bentonite, 0.5 parts of BYK's DISPERBYK-190, 0.5 parts of carbon nanotube dispersion, 9.5 parts of conductive mica powder, 2 parts of ferrophosphorus powder, 2 parts of talcum powder, 2 parts of zinc oxide, 0.5 parts of silicic acid aluminum fiber, 0.5 parts of aluminum borate whiskers, and 0.5 parts of polyvinyl butyral; in terms of mass percentage, the tetraethyl orthosilicate slurry is composed of 40 parts of tetraethyl orthosilicate, 8 parts of catalyst, 38 parts of Water eth...

Embodiment 2

[0033] In this embodiment, the antistatic material on the surface of the steel structure is formed by mixing zinc-aluminum alloy powder slurry and tetraethyl orthosilicate slurry in a mass ratio of 3:1;

[0034] In terms of mass percentage, the zinc-aluminum alloy powder slurry includes 65 parts of zinc-aluminum alloy powder, 5 parts of absolute ethanol, 3 parts of n-butanol, 2 parts of furfural furfuryl alcohol resin as a modifier, 2 parts of a coupling agent vinyl Triethoxysilane, 1 part of polyamide wax, 1 part of BYK-P 104S, 1.5 parts of carbon nanotube dispersion, 9.5 parts of conductive mica powder, 4 parts of ferrophosphorus powder, 2 parts of talc powder, 2 parts Zinc oxide, 1 part of red iron oxide, 0.5 part of mullite whiskers, and 0.5 part of polyvinyl butyral; in terms of mass percentage, the tetraethyl orthosilicate slurry is composed of 45 parts of orthoethyl silicate , 6 parts of catalyzer, 35 parts of absolute ethanol, 14 parts of n-butanols; the catalyzer is d...

Embodiment 3

[0040] In this embodiment, the antistatic material on the surface of the steel structure is formed by mixing zinc-aluminum alloy powder slurry and tetraethyl orthosilicate slurry at a mass ratio of 5:1; in terms of mass percentage, the zinc-aluminum alloy powder slurry includes 60 parts of zinc aluminum alloy powder, 7 parts of absolute ethanol, 4 parts of n-butanol, 3 parts of furfural furfuryl alcohol resin as a modifier, 2 parts of coupling agent isopropyl tri(dioctyl phosphate) titanate, 2 parts Organic bentonite, 2 parts of DISPERBYK-190, 1 part of carbon nanotube dispersion, 10 parts of conductive mica powder, 2 parts of ferrophosphorus powder, 2 parts of talcum powder, 2 parts of zinc oxide, 1 part of aluminum silicate fiber , 1 part of aluminum borate whiskers and 1 part of polyvinyl butyral; according to mass percentage, the tetraethyl orthosilicate slurry is composed of 50 parts of tetraethyl orthosilicate, 8 parts of catalyst, 30 parts of absolute ethanol , 12 parts...

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Abstract

The invention provides a antistatic paint for a steel structure surface and a preparation method thereof. The paint is prepared by mixing zinc-aluminum alloy powder slurry and ethyl orthosilicate slurry in a mass ratio of 3:1-5:1. The ethyl orthosilicate in the ethyl orthosilicate slurry is subjected to hydrolytic condensation under the action of a catalyst, and a furfural-furfuryl alcohol resin is added as a modifier into the zinc-aluminum alloy powder slurry. After the zinc-aluminum alloy powder slurry and ethyl orthosilicate slurry are mixed, the furfural-furfuryl alcohol resin is cured to release water molecules when meeting with acid so as to promote the further condensation of the ethyl orthosilicate hydrolytic condensation substances, and the furfural-furfuryl alcohol resin and the zinc-aluminum alloy powder react to form a interpenetrating network, thereby enhancing the crosslinking density between the paint and the steel structure substrate surface and increasing the wettability and adhesive force of the coating for the substrate.Preferably, a carbon nanotube dispersion solution and conductive mica powder can be added into the zinc-aluminum alloy powder slurry to correspondingly improve the antistatic property of the obtained coating. Therefore, the protective paint is suitable for various steel storage tank internal and external walls, large bridges, ships, offshore oil drilling platforms and other steel structure surfaces.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a steel structure surface, such as the inner and outer walls of steel storage tanks, bridges, ships, offshore oil drilling platforms and other steel structure surfaces, and an antistatic coating with zinc-aluminum alloy as the main filler and its preparation method. Background technique [0002] Inorganic zinc-rich coatings have long been used on the surface of steel structure substrates, such as antistatic primers on the inner and outer walls of steel storage tanks, bridges, ships, offshore oil drilling platforms and other steel structure surfaces. However, the inorganic zinc-rich coating made of tetraethyl orthosilicate has strict requirements on the surface treatment of the substrate during construction, and must be sandblasted to Grade, and prone to problems such as coating peeling, cracking and so on. Contents of the invention [0003] The te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/12C09D5/24
Inventor 王炜赵希娟邓宽于钦萍崔梓杰严岳荣
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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