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Chromium-free high-solid-content double-component epoxy primer and preparation method thereof

An epoxy primer, two-component technology, applied in the direction of epoxy resin coatings, coatings, anti-corrosion coatings, etc., can solve problems such as carcinogenicity, achieve excellent machine oil resistance, simple preparation method, and excellent salt spray resistance sexual effect

Active Publication Date: 2017-06-06
天津灯塔涂料工业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Commonly used for metal anti-corrosion, especially industrial epoxy primers with high anti-corrosion, must use chromate-containing pigments for anti-rust, but in recent years, it has been found that chromate, especially chromate containing hexavalent chromium, such as zinc chromate, is harmful to the human body. It has a strong carcinogenic effect, and even if zinc chromate is used as an anti-rust and anti-corrosion pigment, the salt spray resistance of the paint film is only 1000 hours

Method used

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  • Chromium-free high-solid-content double-component epoxy primer and preparation method thereof
  • Chromium-free high-solid-content double-component epoxy primer and preparation method thereof
  • Chromium-free high-solid-content double-component epoxy primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A chromium-free high-solid two-component epoxy primer, which is composed of A component and B component, and the A component is composed of the following components, in parts by weight:

[0032]

[0033]

[0034] The preparation method of described chromium-free high solid two-component epoxy primer, concrete steps are as follows:

[0035] Ⅰ. Preparation of component A:

[0036] (1) Add 1 / 2 of low molecular weight epoxy resin, wetting and dispersing agent, defoaming agent, anti-floating and anti-flooding agent, thickening and anti-settling agent, and non-reactive diluent into the stirring container in turn according to the formula amount and stir evenly, 600 -800 rpm for 10 minutes at medium speed, then add chrome-free anti-rust pigments, coloring pigments and fillers in turn at 1200-1600 rpm for 10 minutes at high speed;

[0037] (2) Add the mixed slurry into the grinder and grind until the fineness reaches below 40 μm, then pour it into the paint mixing tank; ...

Embodiment 2

[0041]

[0042]

[0043] The preparation method of the above-mentioned chromium-free high solid two-component epoxy primer is according to the preparation method described in Example 1.

Embodiment 3

[0045]

[0046] The preparation method of the above-mentioned chromium-free high solid two-component epoxy primer is according to the preparation method described in Example 1.

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Abstract

The invention provides a chromium-free high-solid-content double-component epoxy primer and a preparation method thereof. The chromium-free high-solid-content double-component epoxy primer is composed of a component A and a component B in a weight ratio of 100:(30-40). The chromium-free high-solid-content double-component epoxy primer is mainly used for the surfaces of steel, iron, aluminum and other substrates, and aircrafts and equipment components with harsh requirements for environment friendliness and corrosion resistance in military and civil industries, and has the advantages of excellent salt spray resistance, excellent filiform corrosion resistance, excellent water resistance, excellent machine oil resistance and excellent adhesive force. The preparation method is simple, and is suitable for the demands of large-scale industrial production.

Description

technical field [0001] The invention relates to a paint and a preparation method thereof, in particular to a chromium-free high-solid two-component epoxy primer and a preparation method thereof. Background technique [0002] Commonly used for metal anti-corrosion, especially industrial epoxy primers with high anti-corrosion, must use chromate-containing pigments for anti-rust, but in recent years, it has been found that chromate, especially chromate containing hexavalent chromium, such as zinc chromate, is harmful to the human body. It has a strong carcinogenic effect, and even if zinc chromate is used as an anti-rust and anti-corrosion pigment, the salt spray resistance of the paint film is only 1000 hours. Ordinary epoxy primers generally have a solid content of about 50%, and their volatile organic solvents are as high as 50%. -65%. Solvent volatilization will pollute the environment, endanger the health of construction workers, be flammable, and do not meet the require...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12C08G59/44
CPCC08G59/44C08K2201/011C08L2201/08C08L2205/035C09D5/082C09D5/084C09D5/18C09D7/61C09D7/65C09D163/00C08L77/00C08K2003/327C08K2003/325C08K2003/326C08K3/34
Inventor 高金利黄震赵蕊魏乃影高萌何效凯孙瑞王静
Owner 天津灯塔涂料工业发展有限公司
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