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Metal primer

A primer and metal technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of slow drying and poor wear resistance of primers, and achieve the effects of fast drying, strong adhesion and strong filling ability

Active Publication Date: 2014-11-19
DRAGON FISH PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing primers generally have the problems of poor wear resistance and slow drying.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation raw material of this metal primer is:

[0019] Component A: Synthetic fatty acid modified alkyd resin 30 kg, butanol 10 kg, talcum powder 20 kg, modified polyurethane dispersant 0.5 kg, calcium carbonate 40 kg, titanium dioxide 30 kg, xylene 5 kg;

[0020] Component B: 30 kg of isocyanate, 35 kg of xylene;

[0021] Its preparation method comprises the following steps:

[0022] A component

[0023] A, first inject synthetic fatty acid modified alkyd resin, xylene, butanol into the reactor;

[0024] B. Start the mixer at a stirring speed of 400-600 rev / min, and add the modified polyurethane dispersant to the reaction kettle in turn, after stirring for 10 minutes, raise the rotating speed to 1300-1500 rev / min, and continue stirring for more than 30 minutes;

[0025] C. Reduce the speed to 400-600 rpm and add talcum powder, calcium carbonate, titanium dioxide, and then stir at a speed of 1300-1500 rpm for more than 20 minutes;

[0026] D. After stirring ...

Embodiment 2

[0032] The preparation raw material of this metal primer is:

[0033] Component A: Synthetic fatty acid modified alkyd resin 50 kg, butanol 5 kg, talcum powder 10 kg, modified polyurethane dispersant 1 kg, calcium carbonate 30 kg, titanium dioxide 40 kg, xylene 10 kg;

[0034] Component B: 50 kg of isocyanate, 15 kg of xylene;

[0035] Its preparation method comprises the following steps:

[0036] A component

[0037] A, first inject synthetic fatty acid modified alkyd resin, xylene, butanol into the reactor;

[0038] B. Start the mixer at a stirring speed of 400-600 rev / min, and add the modified polyurethane dispersant to the reaction kettle in turn, after stirring for 10 minutes, raise the rotating speed to 1300-1500 rev / min, and continue stirring for more than 30 minutes;

[0039] C. Reduce the speed to 400-600 rpm and add talcum powder, calcium carbonate, titanium dioxide, and then stir at a speed of 1300-1500 rpm for more than 20 minutes;

[0040] D. After stirring ev...

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PUM

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Abstract

The invention discloses a metal primer and relates to the technical field of paint. The metal primer includes a first component and a second component, wherein the first component includes following components, by weight, 30-50 parts of synthetic fatty acid modified alkyd resin, 5-10 parts of butanol, 10-20 parts of talcum powder, 0.5-1 part of a modified polyurethane dispersing agent, 30-40 parts of calcium carbonate, 30-40 parts of titanium dioxide and 5-10 parts of dimethylbenzene; and the second component includes following components, by weight, 30-50 parts of isocyanate and 15-35 parts of dimethylbenzene. The metal primer can be dried quickly, is strong in adhesive force, is good in mechanical performances and protective performances, is strong in filling capability, is good in a matching performance, can be matched with various strong solvent finishes and is suitable for being used in coating and priming of various metal products and wood surfaces.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a metal primer. Background technique [0002] The primer is the first layer of the paint system, which is used to improve the adhesion of the topcoat, increase the fullness of the topcoat, provide anti-alkali, anti-corrosion functions, etc., and at the same time ensure the uniform absorption of the topcoat, which is the best performance of the paint system At the same time, the primer also plays a sealing, gree, moisture-proof and mildew-proof role. However, the existing primers generally have the problems of poor wear resistance and slow drying. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a metal primer with fast drying and strong adhesion. [0004] In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: [0005] It includes the following compone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D175/06C09D7/12
Inventor 韦光南刘湛光苏东荣
Owner DRAGON FISH PAINT
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