A kind of anti-flash rust agent for water-based paint and preparation method thereof

A water-based coating and anti-flash rust technology, which is applied in polyester coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of toxicity and carcinogenicity, and does not meet the development trend of environmentally friendly coatings, and achieves good anti-flash rust performance, Low production cost, corrosion inhibiting effect

Active Publication Date: 2021-06-29
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology mainly uses nitrite as an anti-flash rust agent, which has a good anti-flash rust effect. However, nitrite is a toxic and carcinogenic substance, which does not meet the development trend of environmentally friendly coatings, and has been clearly restricted in European and American countries. Added to some varieties of paint

Method used

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  • A kind of anti-flash rust agent for water-based paint and preparation method thereof
  • A kind of anti-flash rust agent for water-based paint and preparation method thereof
  • A kind of anti-flash rust agent for water-based paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 20g of 1,4-butynediol and 20g of tetrasodium hydroxyethylidene diphosphonate to 1L of deionized water in sequence, stir at 25°C for 0.5h, then add 50g of [CTA][Cl] in sequence , 50g of [BTA][NSA] and 50g of [DSA][Cl], stirred at 25°C for 0.5h to obtain an anti-flash rust agent for water-based coatings.

Embodiment 2

[0034] Add 10 g of propynyl alcohol and 10 g of tetrasodium hydroxyethylidene diphosphonate to 1 L of deionized water in sequence, stir at 25°C for 0.5 h, then add 25 g of [CTA][NSA], 25 g of [BTA ][Cl] and 25g of [DSA][Cl], stirred at 25°C for 0.5h to obtain an anti-flash rust agent for water-based coatings.

Embodiment 3

[0036] Add 5 g of 1,4-butynediol and 5 g of tetrasodium aminotrimethylene phosphonate in sequence to 1 L of deionized water, stir at 25°C for 0.5 h, then add 45 g of [CTA][NSA], Stir 45g of [BTA][Cl] and 45g of [DSA][Cl] at 25°C for 0.5h to obtain an anti-flash rust agent for water-based coatings.

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PUM

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Abstract

The invention discloses an anti-flash rust agent for water-based coatings and a preparation method thereof. 20‑60: 20‑60: 4‑25: 4‑25: 1000 mass ratio compounded. The invention can easily form a uniform and dense adsorption film on the metal surface, effectively prevent the electrochemical corrosion of the metal surface, and play the role of inhibiting corrosion. The invention is applied to the water-based paint, has good anti-flash rust performance and less dosage, and only needs to add 0.7-1.2wt% of the anti-flash rust agent to ensure that no rust spots appear on the metal surface.

Description

technical field [0001] The invention belongs to the technical field of organic materials, and in particular relates to an anti-flash rust agent for water-based paint and a preparation method thereof. Background technique [0002] Water-based paint is one of the five green paint products clearly stipulated by the national standard. It has the characteristics of small environmental hazards, convenient construction, good safety, and easy storage and transportation. However, when water-based coatings are used on the steel surface, due to the presence of water and oxygen during the drying process, it is very easy to corrode the steel surface, that is, flash rust. Especially when water-based paint is applied on high carbon steel or cast iron parts, the problem of flash rust is difficult to avoid. Therefore, adding an anti-flash rust agent to water-based paint is an important method to solve the problem of flash rust in the metal coating process. [0003] The existing technology ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/08C09D133/04C09D163/00C09D167/08C09D175/04
CPCC09D5/08C09D133/04C09D163/00C09D167/08C09D175/04
Inventor 胡鹏程周树锋柴瑞敏赖傲楠
Owner HUAQIAO UNIVERSITY
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