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A glossy primer

A primer and bright technology, applied in the direction of coating, can solve the problems of difficult adhesion of primer, slow drying speed, low production efficiency, etc., and achieve the effect of good adhesion, high covering rate and fast drying speed.

Inactive Publication Date: 2011-11-30
汪艾军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing primers are not easy to adhere to smooth surfaces, and are prone to peeling off, which seriously affects the quality and appearance of the product, and the drying speed is slow and the production efficiency is low; at the same time, impact resistance, hiding rate, hardness and gloss etc. are poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The composition and weight percentage of the primer are: acrylic resin accounts for 30%, red iron oxide accounts for 13%, talcum powder accounts for 23%, butyl acetate accounts for 3%, adhesion promoter accounts for 3% and xylene accounts for 11% , the above components are ground and stirred, and then a fixing agent accounting for 17% solid content of 50% is added to form a primer, and then a diluent is added according to the weight of the primer at a ratio of 1:1 to complete; wherein, the components and weight percentages of the acrylic resin are: Butyl acrylate 20%, hydroxybutyl acrylate 15%, hydroxypropyl acrylate 15%, lauryl 10%, methylmethyl acrylate 20% and styrene 20%. The adhesion aid is polyester gene polar acid or ammonia, of course it can also be organic silicon coupling or unmodified ammonia monomer, chlorinated polymer or titanate coupling; the diluent The components and weight percentages are: dimethylbenzene accounts for 60%, butyl acetate accounts for 30...

Embodiment 2

[0022] The difference from Example 1 is: the components and weight percentages of the primer are: acrylic resin accounts for 35%, iron oxide red accounts for 12%, talcum powder accounts for 22%, butyl acetate accounts for 3%, adhesion promoter Accounting for 2% and xylene accounting for 10%, the above components are ground and stirred, and then a fixing agent accounting for 16% with a solid content of 50% is added to form a primer, and then a thinner is added according to the weight of the primer at a ratio of 1:1 to complete; through Dongguan City, Guangdong Province Quality Supervision and Testing Center, according to HG / T 2454-2006 "Solvent-based Polyurethane Coatings (Two-Component)" inspection, this sampling inspection is qualified. The obtained data are: gloss: ≤30; surface dry: 5min; solid dry: 1h (room temperature); adhesion: ≤2; hardness: ≥H; covering rate g / m 2 : ≤30; impact resistance: forward impact 50kg / cm, recoil 50kg / cm.

Embodiment 3

[0024] The difference from Example 1 is: the components and weight percentages of the primer are: acrylic resin accounts for 31%, iron oxide red accounts for 13%, talcum powder accounts for 23%, butyl acetate accounts for 3%, adhesion promoter Accounting for 3% and xylene accounting for 11%, the above components are ground and stirred, and then a fixing agent accounting for 16% with a solid content of 50% is added to form a primer, and then a thinner is added according to the weight of the primer at a ratio of 1:1 to complete; through Dongguan City, Guangdong Province Quality Supervision and Testing Center, according to HG / T 2454-2006 "Solvent-based Polyurethane Coatings (Two-Component)" inspection, this sampling inspection is qualified. The obtained data are: gloss: ≤30; surface dry: 5min; solid dry: 1h (room temperature); adhesion: ≤2; hardness: ≥H; covering rate g / m 2 : ≤30; impact resistance: forward impact 50kg / cm, recoil 50kg / cm.

[0025] Compared with the prior art, th...

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Abstract

The invention discloses a primer for shining surfaces. The primer comprises the following components in percentage by weight: 30 to 35 percent of acrylic resin, 12 to 16 percent of iron oxide red, 22 to 30 percent of talcpowder, 3 percent of butyl acetate, 2 to 3 percent of adhesion aid, and 10 to 14 percent of dimethylbenzene. A method for preparing the primer for the shining surfaces comprises the following steps of: grinding the components and stirring, adding a fixing agent which accounts for 16 to 20 percent of the total amount and has the solid content of 50% to form a primer, and adding a diluent into the primer in the weight ratio of 1:1 to finish the preparation. Compared with the prior art, the primer has the advantages that: 1, the primer has high adhesion and can be firmly adhered to smooth planes, and the adhesion is less than or equal to level 2; 2, the drying speed is high, the surface drying needs 5 minutes, and the hard drying only needs 1 hour; 3, the primer is impact-resistant, and the positive impact is 50kg / cm and the negative impact is 50kg / cm; 4, the covering rate is high, and is less than or equal to 30g / m <2>; and 5, the glossiness is less than equal to 30.

Description

[0001] technical field [0002] The invention relates to a glossy primer. [0003] Background technique [0004] In order to improve the adhesion between the topcoat film and the molded parts of automobile exterior panels, home appliances and furniture, these molded products often need to be coated with a layer of primer in advance. However, the existing primers are not easy to adhere to smooth surfaces, and tend to fall off, which seriously affects the quality and appearance of the product, and the drying speed is slow and the production efficiency is low; at the same time, impact resistance, hiding rate, hardness and gloss etc. are poor. [0005] Contents of the invention [0006] The technical problem to be solved by the present invention is to provide a glossy primer with good adhesion, fast drying, impact resistance and high hiding rate. The present invention is achieved through the following technical solutions: [0007] In order to solve the above-mentioned tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D7/12
Inventor 汪艾军
Owner 汪艾军
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