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Normal-temperature cured phosphate anticorrosive coating capable of removing formaldehyde through visible light catalysis and achieving sterilization and mildew prevention, and preparation method thereof

A room temperature curing, anti-corrosion coating technology, applied in the direction of anti-corrosion coatings, coatings, paints containing biocides, etc., can solve the problems of air pollution, human health hazards, etc., to achieve enhanced electronegativity, long-lasting sterilization, and easy absorption of electrons Effect

Active Publication Date: 2020-07-17
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pollution of the air can also cause great harm to human health

Method used

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  • Normal-temperature cured phosphate anticorrosive coating capable of removing formaldehyde through visible light catalysis and achieving sterilization and mildew prevention, and preparation method thereof
  • Normal-temperature cured phosphate anticorrosive coating capable of removing formaldehyde through visible light catalysis and achieving sterilization and mildew prevention, and preparation method thereof
  • Normal-temperature cured phosphate anticorrosive coating capable of removing formaldehyde through visible light catalysis and achieving sterilization and mildew prevention, and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] A normal temperature curing phosphate anti-corrosion coating that catalyzes the removal of formaldehyde with visible light and is sterilizing and anti-mildew, comprising the following components: 30 parts of potassium dihydrogen phosphate, 20 parts of magnesium oxide, 5 parts of aluminum oxide, 2 parts of zinc dioxide, and 2 parts of zirconium oxide 5 parts of potassium silicate, 5 parts of sodium silicate, 10 parts of titanium tetrachloride, 10 parts of sodium hydroxide, 5 parts of copper acetate, 5 parts of zinc acetate, fumed silica (spherical particles with a particle size of 7-40nm ) 8 parts, 2 parts of silica gel, 2 parts of sodium tetraborate, 90 parts of water.

[0030] A method for preparing a visible light catalyzed formaldehyde removal and bactericidal and mildew-proof normal temperature curing phosphate anti-corrosion coating, comprising the following steps:

[0031] 1) Preparation of phosphate colloid: 30 parts of potassium dihydrogen phosphate, 5 parts of ...

Embodiment 2

[0039] A visible light catalyzed removal of formaldehyde and bactericidal, anti-mildew and anti-corrosion coating, comprising the following components: 25 parts of sodium dihydrogen phosphate, 20 parts of magnesium oxide, 3 parts of aluminum oxide, 2 parts of zirconium oxide, 5 parts of potassium silicate, calcium silicate 5 parts, 10 parts of titanium sulfate, 10 parts of potassium hydroxide, 5 parts of copper acetate, 6 parts of fumed silica (spherical particle size is 7-40nm), 2 parts of silica gel, 2 parts of potassium tetraborate, 60 parts of water share.

[0040] A method for preparing formaldehyde-removing catalyzed by visible light and a bactericidal, anti-mildew and anti-corrosion coating, comprising the following steps:

[0041] 1) Preparation of phosphate colloid: 25 parts of sodium dihydrogen phosphate, 5 parts of potassium silicate, 5 parts of calcium silicate, 10 parts of titanium sulfate, and 5 parts of copper acetate were fully mixed and stirred, and then 30 pa...

Embodiment 3

[0049] A visible light catalyzed removal of formaldehyde and bactericidal anti-mildew anti-corrosion coating, including the following components: 10 parts of potassium monohydrogen phosphate, 20 parts of potassium dihydrogen phosphate, 20 parts of magnesium oxide, 5 parts of aluminum oxide, 3 parts of magnesium hydroxide, 2 parts of zirconium, 5 parts of potassium silicate, 5 parts of magnesium silicate, 5 parts of aluminum silicate, 10 parts of butyl titanate, 10 parts of ammonia water, 5 parts of sodium carbonate, 5 parts of zinc acetate, 5 parts of sodium acetate, gas phase II Silicon oxide (spherical particle size 7-40nm) 8 parts, aluminum silicate 2 parts, potassium metaborate 1 part, sodium metaborate 1 part, water 110 parts.

[0050] A method for preparing formaldehyde-removing catalyzed by visible light and a bactericidal, anti-mildew and anti-corrosion coating, comprising the following steps:

[0051] 1) Preparation of phosphate colloid: 10 parts of potassium monohydr...

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Abstract

The invention discloses a normal-temperature cured phosphate anticorrosive coating capable of removing formaldehyde through visible light catalysis and achieving sterilization and mildew prevention. The phosphate anticorrosive coating comprises the following components: 25-30 parts of phosphate, 25-30 parts of an alkaline modifier, 10-15 parts of silicate, 10-15 parts of titanium salt, 10-15 partsof an active agent, 5-10 parts of acetate, 8-10 parts of a thickening agent, 2-3 parts of a retarder and 60-110 parts of water. The invention further discloses a preparation method of the normal-temperature cured phosphate anticorrosive coating. The preparation method comprises the following steps: (1) preparing a phosphate colloid; (2) forming a component A from an admixture; (3) grinding basicoxide; (4) forming a component B from an admixture; and (5) mixing the component A with the component B. The coating coats a metal surface, can effectively decompose formaldehyde in an environment, kill bacteria and remove mildew, and has stable photocatalytic effect and high corrosion resistance.

Description

technical field [0001] The invention belongs to the field of metal material maintenance of steel structures, and in particular relates to a normal-temperature curing phosphate anti-corrosion coating and a preparation method thereof which catalyzes the removal of formaldehyde with visible light and is bactericidal and anti-mildew. Background technique [0002] Metal contact with the medium in the surrounding environment and chemical reaction is the most common phenomenon of metal electrochemical corrosion. Since the metal surface is in contact with the surrounding medium (such as moist air, electrolyte solution, etc.), the metal anodic dissolution process will occur on the contact interface. , At the same time, there is also a corresponding cathodic process, which constitutes a spontaneous corrosion cell, which makes the metal anodic dissolution continue, thereby causing metal corrosion. According to the survey, the economic loss caused by global metal corrosion accounts for ...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/08C09D5/14C09D7/61C09D7/63
CPCC09D1/00C09D5/08C09D5/14C09D7/61C09D7/63C09D7/70
Inventor 闫东明刘毅
Owner ZHEJIANG UNIV
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