Dual-component priming paint

A two-component, primer technology, used in anti-corrosion coatings and other directions, can solve problems such as the quick-drying defect of two-component paints, and achieve the effects of improving product performance, saving resources and strong adhesion

Inactive Publication Date: 2008-01-02
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the limitations of the performance of various coating resins, some two-component paint products have been developed successively. However, the quick-drying defect of two-component paint for UV is still a problem that needs to be solved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take the following raw materials by weight:

[0025] Hydroxy Acrylic Resin 10

[0026] Aluminum powder 1

[0027] Organotin drier 0.1

[0028] Butyl acetate 1

[0029] HDI trimer curing agent 0.5

[0030] The above-mentioned weighed raw materials are mixed uniformly according to the conventional method to make a paint, and then the paint is coated on the surface of a magnesium alloy sample in the same way as other paints, and then baked at a temperature of 70 ° C for 25 minutes, and then Check the generated paint film, it does not crack, soften, or delaminate through the 48-hour thermal cycle test, and the thermal cycle test process starts at -35°C for 1 hour, and then heats up to 70°C with a humidity of 95°C after 1 hour. %Stand for 1h, and then return to -35°C for 1h, which is a cycle, a total of 12 cycles. In addition, soaking the obtained paint film in water at 60°C for 4 hours did not cause abnormality, and its adhesion reached grade 8.

Embodiment 2

[0032] Take the following raw materials by weight:

[0033] Hydroxy Acrylic Resin 15

[0034] Aluminum powder 2

[0035] Organotin drier 0.5

[0036] Butyl acetate 1.5

[0037] HDI trimer curing agent 0.5

[0038] The above-mentioned weighed raw materials are mixed uniformly according to the conventional method to make a paint, and then the paint is coated on the surface of a magnesium alloy sample in the same way as other paints, and then baked at a temperature of 70 ° C for 25 minutes, and then Check the generated paint film, it does not crack, soften, or delaminate through the 48-hour thermal cycle test, and the thermal cycle test process starts at -35°C for 1 hour, and then heats up to 70°C with a humidity of 95°C after 1 hour. %Stand for 1h, and then return to -35°C for 1h, which is a cycle, a total of 12 cycles. In addition, soaking the obtained paint film in water at 60°C for 4 hours did not cause abnormality, and its adhesion reached grade 8.

Embodiment 3

[0040] Take the following raw materials by weight:

[0041] Hydroxy Acrylic Resin 20

[0042] Aluminum powder 3

[0043] Organotin driers 1

[0044] Butyl acetate 2

[0045] HDI trimer curing agent 0.5

[0046] The above-mentioned weighed raw materials are mixed uniformly according to the conventional method to make a paint, and then the paint is coated on the surface of a magnesium alloy sample in the same way as other paints, and then baked at a temperature of 70 ° C for 25 minutes, and then Check the generated paint film, it does not crack, soften, or delaminate through the 48-hour thermal cycle test, and the thermal cycle test process starts at -35°C for 1 hour, and then heats up to 70°C with a humidity of 95°C after 1 hour. %Stand for 1h, and then return to -35°C for 1h, which is a cycle, a total of 12 cycles. In addition, soaking the obtained paint film in water at 60°C for 4 hours did not cause abnormality, and its adhesion reached grade 8.

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PUM

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Abstract

The invention discloses a dual-component priming paint, which comprises the following parts: 5-40% hydroxy acryl resin, 0-5% pigment filler, 0.01-3% drier, 0.1-5% solvent and 0.05-2% hardener, wherein the priming paint adopts acrylic acid resin with low-hydroxy value and high-hydroxy activity, which has quick-drying effect through mating HDI tripolymer. The invention reduces roasting time and manufacturing cost, which improves manufacturing efficiency and perfects the property of the product.

Description

technical field [0001] The invention relates to a coating material, in particular to a two-component paint. Background technique [0002] Paint refers to a type of film-forming substance that can dry and form a film when applied to the surface of an object, making the object beautiful and protected, or forming a film with other special functions on the surface of the object. Paint is a multi-component system, generally a viscous liquid. Since the function of paint is to protect different surfaces and environments, it needs to have mechanical strength, aging resistance, and corrosion resistance. [0003] The film-forming substances of paints mostly use high-molecular compounds, which are generally called resins for coatings. They should have the following properties: good solubility, good miscibility, good film-forming properties and wettability to pigments, and can impart certain properties to the coating film. Protection and decoration, but also good stability and a certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/14C09D5/12
Inventor 袁健
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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