Environment-friendly solvent-free humidified and rusted anticorrosive paint

An anti-corrosion coating, solvent-free technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of high price, high solvent content of heavy anti-corrosion coatings and pollute the environment, to ensure anti-corrosion quality and optimize anti-corrosion solutions , The effect of simplifying the pretreatment process

Inactive Publication Date: 2010-06-23
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problems of complex and expensive surface treatment process and high solvent content of heavy-duty coatings that pollute the environment during the coating construction of steel structures, the purpose of the present invention is to provide a high-efficiency, low-surface-treatment epoxy solvent-free anti-corrosion coating on steel structu

Method used

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  • Environment-friendly solvent-free humidified and rusted anticorrosive paint
  • Environment-friendly solvent-free humidified and rusted anticorrosive paint
  • Environment-friendly solvent-free humidified and rusted anticorrosive paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Table 2 Example 1 formula

[0044]

[0045]

[0046] According to the mass ratio in Table 2, add the rust pigment prepared with zinc molybdate and aluminum tripolyphosphate, mica powder antirust agent, dispersant, bentonite, polyamide wax paste anti-settling agent to aromatic hydrocarbon resin, and pre-mix with a high-speed mixer . Add iron oxide red, precipitated barium sulfate inert pigment and defoamer to epoxy resin for pre-grinding, with a fineness of 50 μm. Mix and grind the two preparatory materials, the fineness is 30μm, mix with a certain amount of curing agent before painting, and add active diluent to adjust the viscosity.

[0047] The data of the present invention aspect performance are listed in table 3

[0048] Table 3 Embodiment 1 coating properties

[0049] project

[0050] Note: The above test coatings are all applied to the steel structure with a rust layer thickness of 60-80 μm and covered with a water film

Embodiment 2

[0052] Table 4 Example 2 formula

[0053]

[0054]

[0055] With the band rust pigment of zinc molybdate, zinc phosphate and aluminum tripolyphosphate configuration and mica powder antirust agent, dispersant, bentonite, nanometer SiO by the mass proportion of table 4 2 The anti-settling agent is added to the aromatic resin and pre-mixed with a high-speed mixer. Then add the precipitated barium sulfate inert pigment and defoamer to the epoxy resin for pre-grinding, with a fineness of 50 μm. Mix and grind the two preparatory materials, the fineness is 30μm, mix with a certain amount of curing agent before painting, and add active diluent to adjust the viscosity.

[0056] Table 5 Embodiment 2 coating properties

[0057] project

[0058] project

[0059] Note: The above test coatings are all applied to the steel structure with a rust layer thickness of 60-80 μm and covered with a water film

Embodiment 3

[0061] Table 6 Embodiment 3 coating formula

[0062]

[0063]

[0064] According to the mass ratio in Table 6, the rusty pigment and mica powder antirust agent, dispersant, and polyamide wax slurry antisettling agent prepared with zinc molybdate, zinc phosphate, and aluminum tripolyphosphate are added to the aromatic hydrocarbon resin, and pre-treated with a high-speed mixer. mix. Add iron oxide red, precipitated barium sulfate inert pigment and defoamer to epoxy resin for pre-grinding, with a fineness of 50 μm. Mix and grind the two preparatory materials, the fineness is 30μm, mix with a certain amount of curing agent before painting, and add active diluent to adjust the viscosity.

[0065] The data of the present invention aspect performance are listed in table 7

[0066] Table 7 embodiment 3 coating properties

[0067] project

[0068] Note: The above test coatings are all applied to the steel structure with a rust layer thickness of 60-80μm and covered w...

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Abstract

The invention relates to a paint material with formed organic film, in particular to an epoxy solvent-free anticorrosive paint applied to low surface treatment steel structure. The anticorrosive paint is prepared by efficiently compounding rusted coating pigments such as zinc molybdate, zinc phosphate, aluminium trippolyhosphate, iron oxide red and the like, using cashew nut oil modified long-chain amine phenolic aldehyde as, alicyclic glycidyl ether as active diluent, thus overcoming the problems that surface treatment technique in coating construction costs high and heavy anticorrosive paint with high solvent content pollutes the environment, having easy preparation and construction, low cost, fast solidification at high temperature, good mechanical and anticorrosive performance, solvent-free and environment-friendly properties, and being applicable to heavy anticorrosive projects of steel structures such as ship, train, bridge and the like.

Description

technical field [0001] The invention relates to a paint chemical material mainly formed of an organic film, in particular to an epoxy solvent-free anti-corrosion paint applied to a low-surface-treated steel structure. Background technique [0002] The use of low surface treatment coatings is mainly aimed at the surface where it is impossible to fully reach the sandblasting level Sa2.5 (ISO8501-1: 1988), and can be coated on the surface polished to the St2 and St3 level by hand or power tools and the high-pressure water jet derusting surface As well as watery and rusty coatings on wet environments or surfaces containing water films, this field has become a research hotspot at home and abroad in recent years. [0003] The "H2000 Wet Rust Paint Primer" with epoxy resin E601 as the main component of the Naval Paint Analysis and Testing Center can be used with most paints, especially for rust and wet steel plates after high-pressure water derusting The surface solves the problem...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08
Inventor 李伟华田惠文金国善邓俊英侯保荣
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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