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Cathodic electrophoretic coating and preparation method thereof

A cathodic electrophoretic coating and mixing technology, applied in the field of coatings, can solve the problems of general weather resistance, failure to meet the requirements of the field, and high weather resistance requirements, and achieve excellent anti-sedimentation performance, excellent anti-corrosion performance, and good matching effects.

Pending Publication Date: 2018-10-23
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the existing traditional cathodic electrophoretic coatings have general weather resistance and cannot meet the requirements in areas with high weather resistance requirements, the present invention provides a cathodic electrophoretic coating and its preparation method

Method used

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  • Cathodic electrophoretic coating and preparation method thereof

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preparation example Construction

[0030] In one embodiment, the preparation method includes the following steps:

[0031] (1) taking each component according to the raw material ratio of the cathodic electrophoretic coating;

[0032] (2) Mixing and grinding the quaternary ammonium salt dispersion resin, pigments and fillers and deionized water to obtain a color paste;

[0033] (3) Mixing the fluorine-modified epoxy resin, blocked isocyanate, emulsifier, neutralizer and deionized water to obtain an emulsion;

[0034] (4) Mixing the color paste, emulsion and deionized water to obtain cathodic electrophoretic paint.

[0035] The above-mentioned preparation method is further explained below:

[0036] Preferably, in step (4), the stirring speed of the mixing treatment is 1500-2000 rpm, and the stirring is sufficient to obtain a uniform cathodic electrophoretic coating.

[0037] Preferably, in step (2), the grinding fineness of the grinding treatment is ≤15um to ensure the uniformity of the color paste.

[0038]...

Embodiment 1

[0041] A cathodic electrophoretic paint, the raw materials include the following components in mass fractions: 5% of color paste, 45% of emulsion, and 50% of deionized water;

[0042] The color paste includes the following components in parts by mass: 30 parts of quaternary ammonium salt dispersion resin, 50 parts of deionized water, 9 parts of MH-RC, 5 parts of chrome yellow 7000, 6 parts of titanium dioxide;

[0043] The emulsion includes the following components in parts by mass: 30 parts of fluorine-modified epoxy resin, 12 parts of blocked isocyanate, 6 parts of emulsifier, 3 parts of neutralizer, and 50 parts of deionized water.

[0044] The cathodic electrophoretic coating preparation method comprises the following steps:

[0045] (1) take each component according to the described raw material ratio;

[0046] (2) Mixing the quaternary ammonium salt dispersion resin, pigments and fillers, and deionized water for 10-20 minutes, and grinding to a fineness of ≤15um to obta...

Embodiment 2

[0050] A cathodic electrophoretic paint, the raw materials include the following components in mass fractions: 10% of color paste, 40% of emulsion, and 55% of deionized water;

[0051] The color paste includes the following components in parts by mass: 40 parts of quaternary ammonium salt dispersion resin, 45 parts of deionized water, 3 parts of MH-RC, 6 parts of chrome yellow 7000, and 6 parts of titanium dioxide;

[0052] The emulsion includes the following components in parts by mass: 32 parts of fluorine-modified epoxy resin, 9 parts of blocked isocyanate, 2 parts of emulsifier, 7 parts of neutralizer, and 50 parts of deionized water.

[0053] The cathodic electrophoretic coating preparation method comprises the following steps:

[0054] (1) take each component according to the described raw material ratio;

[0055] (2) Mixing the quaternary ammonium salt dispersion resin, pigments and fillers, and deionized water for 10-20 minutes, and grinding to a fineness of ≤15um to ...

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Abstract

The invention relates to the technical field of coatings, and particularly discloses a cathodic electrophoretic coating and a preparation method thereof. The cathode electrophoretic coating comprisesthe following raw material components by mass: 5% to 10% of color paste, 40% to 45% of emulsion, and 50% to 55% of deionized water; and the color paste includes the following components by mass: 10-35parts of quaternary ammonium salt dispersion resin, 25-40 parts of deionized water and 15-30 parts of a pigment filler; the emulsion comprises the following components in parts by mass: 30-40 parts of fluorine-modified epoxy resin, 9-12 parts of closed isocyanate, 2-8 parts of an emulsifier, 1-8 parts of a neutralizer and 30-50 parts of deionized water. The cathodic electrophoretic coating provided by the invention not only has strong throwing power, but also has excellent water resisconcrete tance, chemical resistance and weather resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a cathodic electrophoretic coating and a preparation method thereof. Background technique [0002] Since the advent of cathodic electrophoretic coatings, both the coating itself and the coating application technology have made a lot of progress, and many products and new application technologies have been introduced. So far, almost 100% of the automotive primers use cathodic electrophoretic coatings. [0003] Electrophoretic coatings are the first water-based coatings developed. Its main features are high coating efficiency, economy, safety, and low pollution, and it is convenient for automated large-scale production. After decades of development, the products have been constantly updated. The latest cathodic electrophoretic coatings require higher throwing power, lower P / B, better corner coverage and other characteristics. [0004] Among them, the traditional epoxy series cath...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D201/02C09D5/44C09D5/08
CPCC09D5/08C09D5/4442C09D5/4473C09D5/4488
Inventor 高秋颖郭晓猛刘树飞胡中源董立志
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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