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A kind of preparation method of acid, alkali and salt corrosion water-based antirust paint

A water-based anti-rust paint and salt corrosion technology, applied in the field of anti-rust paint, can solve the problems of slow drying speed, long construction time, unfriendly environment of solvent-based anti-rust paint, etc., and achieve the effect of simple operation

Active Publication Date: 2021-07-09
芜湖市永格节能材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing solvent-based anti-rust paint is not friendly to the environment, the existing water-based anti-rust paint has unsatisfactory acid, alkali and salt resistance, slow drying speed, and long construction time, and proposes an acid-resistant anti-rust paint Preparation method of alkali-salt corrosion water-based anti-rust paint

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of preparation method of acid-base salt corrosion-resistant water-based anti-rust paint proposed by the present invention comprises the following steps:

[0024] S1. Weigh zinc phosphate, iron oxide red and aluminum powder according to the mass ratio of 20:3:4, and add a grinding aid of 2% by mass of zinc phosphate, grind and refine for 1 hour, concentrate under reduced pressure to recover absolute ethanol, and dry Obtain a pigment mixture; the grinding aid is formed by mixing dehydrated alcohol, sodium lauryl sulfate and isopropanol with a mass ratio of 54:3:16;

[0025] S2. Mix the pigment mixture with crospovidone and N-methylpyrrolidone according to the mass ratio of 45:1:30, and mechanically stir at 46°C for 1h, and then cool down to room temperature at a rate of 2°C / min. Ultrasonic dispersion at room temperature for 40 minutes to obtain the modified pigment slurry;

[0026] S3. Weigh 100 parts by weight of aqueous synthetic resin dispersion, 6 parts by wei...

Embodiment 2

[0031] A kind of preparation method of acid-base salt corrosion-resistant water-based anti-rust paint proposed by the present invention comprises the following steps:

[0032] S1. Weigh zinc phosphate, iron oxide red and aluminum powder according to the mass ratio of 21:4:5, and add a grinding aid of 3% by mass of zinc phosphate, grind and refine for 1.5 hours, concentrate under reduced pressure and recover absolute ethanol, Dried to obtain a pigment mixture; the grinding aid is formed by mixing absolute ethanol, sodium lauryl sulfate and isopropanol with a mass ratio of 51:2:11;

[0033] S2. Mix the pigment mixture with crospovidone and N-methylpyrrolidone according to the mass ratio of 47:3:35, and mechanically stir at 46°C for 1h, and then cool down to room temperature at a rate of 2°C / min. Ultrasonic dispersion at room temperature for 40 minutes to obtain the modified pigment slurry;

[0034] S3. Weigh 105 parts by weight of aqueous synthetic resin dispersion, 4 parts by ...

Embodiment 3

[0039] A kind of preparation method of acid-base salt corrosion-resistant water-based anti-rust paint proposed by the present invention comprises the following steps:

[0040] S1. Weigh zinc phosphate, iron oxide red and aluminum powder according to the mass ratio of 22:5:6, add a grinding aid of 4% by mass of zinc phosphate, grind and refine for 2 hours, concentrate under reduced pressure to recover absolute ethanol, and dry Obtain a pigment mixture; the grinding aid is formed by mixing dehydrated alcohol, sodium lauryl sulfate and isopropanol with a mass ratio of 52:2:13;

[0041] S2. Mix the pigment mixture with crospovidone and N-methylpyrrolidone according to the mass ratio of 47:2:33, and mechanically stir at 43°C for 1.5h, then cool down to room temperature at a rate of 2°C / min , and ultrasonically disperse for 35 minutes at room temperature to obtain the modified pigment slurry;

[0042] S3. Weigh 105 parts by weight of aqueous synthetic resin dispersion, 4 parts by w...

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PUM

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Abstract

The invention provides a preparation method of acid, alkali and salt corrosion water-based antirust paint, comprising the following steps: S1, taking zinc phosphate, iron oxide red and aluminum powder, grinding and refining to obtain a pigment mixture; S2, mixing the pigment mixture with Mixing cross-linked povidone and N-methylpyrrolidone to obtain modified pigment slurry; S3, preparing raw materials; S4, mixing water-based synthetic resin dispersion with water, adding N,N.N',N'-tetrahydroxyethylene Ethylenediamine, 8-hydroxyquinoline copper and monolauryl phosphate, after stirring, add 4-vinyl-2-methoxyphenol, modified pigment slurry and far-infrared ceramic powder to obtain A component; S5, Mix triethylenetetramine, 2‑ethyl‑4‑methylimidazole and 3‑aminopropyltriethoxysilane to obtain B component; S6, mix A and B components to resist acid, alkali and salt corrosion Water-based antirust paint. The preparation method proposed by the invention has simple operation, and the prepared antirust paint is safe and environment-friendly, and resistant to acid, alkali and salt corrosion.

Description

technical field [0001] The invention relates to the technical field of antirust paint, in particular to a preparation method of an acid, alkali and salt corrosion-resistant water-based antirust paint. Background technique [0002] Antirust paint is a coating that can protect metal surfaces from chemical or electrochemical corrosion of the atmosphere, sea water, etc., and is widely used in the rust prevention of metals such as bridges, ships, and pipelines. Synthetic resin is the main film-forming substance. The antirust paints currently used are mainly divided into solvent-based antirust paints and water-based antirust paints. Solvent-based antirust paint has the advantages of excellent chemical resistance, acid, alkali and salt resistance, strong adhesion, fast drying speed, and room temperature drying, etc., occupying a certain market advantage. With the enhancement of people's awareness of environmental protection, water The solvent-based water-based anti-rust paint is s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/06C09D5/10C09D5/08C09D7/20C09D7/63C09D7/62C09D7/61
Inventor 章永祥邹有勇
Owner 芜湖市永格节能材料有限公司