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Elastic priming paint and preparation method and spraying method thereof

An elastic primer and primer technology, applied in the field of coatings, can solve the problems of orange peel and achieve the effect of smooth paint surface

Inactive Publication Date: 2013-12-18
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem that orange peel is produced on the surface of the existing paint for plastic materials during the baking process, forming its appearance, and provides a primer for plastic materials that does not produce orange peel during the baking process and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The present invention also provides a kind of preparation method of primer of the present invention, and this method comprises the following steps:

[0026] S1. Stir the elastic resin, drier, leveling agent and solvent in a high-speed disperser at a low speed to obtain the main paint;

[0027] S2. Blending the paint, blending the paint according to the weight ratio of the main paint, curing agent and thinner, and filtering out impurities and dirt after stirring.

[0028] According to the preparation method provided by the present invention, preferably, the low-speed stirring in the step S1 is 600-800r / min, and the time is 20-40min.

[0029] According to the preparation method provided by the present invention, preferably, the low-speed stirring in the step S2 is 400-600r / min, and the time is 10-20min.

[0030] The present invention also provides a method for spraying the primer, the method comprising the following steps:

[0031] S1. Adjust the viscosity of the primer...

Embodiment 1

[0037] 1. Elastic coating:

[0038] (1) Weigh 48.3g of elastic resin Bayer 1652, 0.3g of drier ALLCHEM 360, 0.4g of leveling agent BYK 354 and solvent (xylene 28g, ethyl acetate 8g, butyl acetate 10g, ethylene glycol ethyl ether acetic acid 2.5g of ester, 2.5g of cyclohexanone), stirring at a low speed of 600r / min in a high-speed disperser, stop stirring after 40min, let it stand for defoaming, and take a sample;

[0039] (2) Weigh 14 g of the diluent solvent xylene, stir at a low speed (400-600r / min) for 10-20min under the high-speed disperser, stop stirring, and take a sample;

[0040] (3) Blend the paint, blend the paint according to the weight ratio of the main paint, curing agent and thinner, filter out impurities and dirt with a 300-mesh filter cloth, and wait for spraying.

[0041] 2. Coating method:

[0042] (1) Surface cleaning and bottom water spraying of fiber reinforced composite materials

[0043] Clean the surface of the material with a dust-free cloth dipped ...

Embodiment 2

[0046] Product A2 was prepared according to the method of Example 1, the difference being that each substance and its content are as shown in Table 1.

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PUM

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Abstract

The invention provides an elastic priming paint, and the priming paint includes a main paint, a curing agent and a diluent; the main paint comprises an elastic resin, a drying agent, a leveling agent and a solvent; on the basis of the total weight of the main paint, the content of the elastic resin is 28-70wt%, the content of the drying agent is 0.1-1wt%, the content of the leveling agent is 0.05-5wt%, and the content of the solvent is 25-70wt%. The invention also provides a preparation method and a spraying method of the elastic priming paint. The surface of a paint film of a product prepared by the elastic priming paint is smooth and flat.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to an elastic primer, a preparation method and a spraying method thereof. Background technique [0002] In order to improve the strength, rigidity and temperature resistance of plastic materials such as PC, ABS, etc., glass fibers and their products are often used as reinforcing materials, and synthetic resins are used as matrix materials to form composite materials. But its adhesion is poor. [0003] Disclosed as Chinese patent CN101250362 is a kind of UV lamp curing lampshade coating primer, aimed at the problem of poor coating adhesion of glass fiber reinforced plastics, the method adopted is to first make a layer of primer in the plastic. The weight percent of the primer is composed of: novolac epoxy acrylate 10-40wt%, difunctional aliphatic urethane acrylate 5-20wt%, macromolecular pure acrylic resin 20-40wt%, high-functional acrylate 5-30wt% , single tube energy acrylate 5-30wt%, adh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D7/12B05D1/02
Inventor 崔静娜左永利韦思伟
Owner BYD CO LTD
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