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Ultrafast drying varnish for repairing car and preparation method of ultrafast drying varnish

A technology for varnishes and automobiles, applied in the direction of coating, etc., can solve the problems of long surface drying and solid drying time, low working hours efficiency, slow curing speed, etc., and achieve the effect of short polishing time, improved working hours efficiency and fast drying

Inactive Publication Date: 2019-03-19
安庆瑞泰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional car repair quick-drying varnishes on the market have relatively slow curing speed, long surface-drying and hard-drying time, easy to lose gloss after polishing, and low working-hour efficiency

Method used

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  • Ultrafast drying varnish for repairing car and preparation method of ultrafast drying varnish
  • Ultrafast drying varnish for repairing car and preparation method of ultrafast drying varnish
  • Ultrafast drying varnish for repairing car and preparation method of ultrafast drying varnish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of super fast drying varnish for car repair, prepared by the following method:

[0024] 1) Preparation of component A: slowly add 12g of xylene, 4.6g of butyl acetate, 4g of propylene glycol methyl ether acetate, 2g of dicarboxylate, 0.2g of EFKA 3777, and 10% butyl acetate of dibutyltin dilaurate in sequence Solution 0.2g and cellulose acetate butyrate modified acrylic resin (acrylic resin synthesized by super-curing mechanism) 77g were stirred for 30 minutes at a rotating speed of 500RPM to make it uniformly mixed;

[0025] 2) Preparation of component B: slowly add 5.75g of butyl acetate (moisture content: 180ppm) and 19.25g of DesmodurN3300 in sequence, and stir at 500RPM for 10 minutes to make it evenly mixed;

[0026] 3) Blending: Mix component A and component B, and stir at 500 RPM for 5 minutes to make them evenly mixed to obtain an ultra-fast-drying varnish for automobile repair.

[0027] Testing the properties of the above ultra-fast drying clearcoats f...

Embodiment 2

[0036] A kind of super fast drying varnish for car repair, prepared by the following method:

[0037] 1) Preparation of component A: slowly add xylene 8g, butyl acetate 3g, propylene glycol methyl ether acetate 2g, diformate 1g, EFKA 3777 0.01g, 10% dibutyltin dilaurate in butyl acetate solution 0.01g and 50g of acrylic resin modified by cellulose acetate butyrate (acrylic resin synthesized by supercuring mechanism), stirred for 40 minutes at a rotating speed of 400RPM, to make it evenly mixed;

[0038] 2) Preparation of component B: slowly add 2.7g of butyl acetate (moisture content: 200ppm) and 13.3g of DesmodurN3300 in sequence, and stir at 600RPM for 5 minutes to make it evenly mixed;

[0039] 3) Blending: Mix component A and component B, and stir at 400 RPM for 3 minutes to make them evenly mixed to obtain an ultra-fast-drying varnish for automobile repair.

[0040] Testing the properties of the above ultra-fast drying clearcoats for automotive refinishing:

[0041] 1) ...

Embodiment 3

[0049] A kind of super fast drying varnish for car repair, prepared by the following method:

[0050] 1) Preparation of component A: slowly add 16g of xylene, 7g of butyl acetate, 6g of propylene glycol methyl ether acetate, 3g of dicarboxylate, 0.5g of EFKA 3777, and 10% butyl acetate solution of dibutyltin dilaurate in sequence 0.25g and 80g of acrylic resin modified by cellulose acetate butyrate (acrylic resin synthesized by super-curing mechanism), stirred for 20 minutes at a rotating speed of 600RPM to make it evenly mixed;

[0051] 2) Preparation of component B: slowly add 8.58g of butyl acetate and 19.61g of Desmodur N3300 in sequence, and stir at 400RPM for 15 minutes to make it evenly mixed;

[0052] 3) Blending: Mix component A and component B, and stir at 400 RPM for 6 minutes to make them evenly mixed to obtain an ultra-fast-drying varnish for automobile repair.

[0053] Testing the properties of the above ultra-fast drying clearcoats for automotive refinishing: ...

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Abstract

The invention discloses ultrafast drying varnish for repairing a car. The ultrafast drying varnish comprises a component A and a component B in a weight ratio of 4, wherein the component A comprises 50 to 80 parts of cellulose acetate butyrate modified acrylic resin, 0.01 to 0.5 part of flatting agent, 0.01 to 0.5 part of dryness accelerant, and 14 to 32 parts of solvent; and the component B comprises 50 to 80 parts of curing agent and 10 to 35 parts of solvent. The invention also discloses a preparation method of the ultrafast drying varnish for repairing the car. The ultrafast drying varnishhas the advantages that the ultrafast drying varnish has the performances of fast drying, high initial and final hardness, short polishing time, high gloss and distinctness, no chalkiness after the polishing and the like under a high-low-temperature condition, the working efficiency can be significantly improved, and the ultrafast drying varnish can be applied to the car repairing paint and bus paint.

Description

technical field [0001] The invention relates to the technical field of automobile coatings, in particular to an ultra-fast-drying varnish for automobile repair and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, the number of automobiles is getting higher and higher. During the driving process of the automobile, the paint has been subjected to harsh conditions such as wind, sun and sun for a long time, and is often subject to accidents, etc., and needs to be repaired. Therefore, the automobile repair The demand for paint is growing faster and faster, and the performance requirements for automotive refinish paint are also becoming higher and higher. [0003] At present, the traditional fast-drying varnishes for automotive repairs on the market have a relatively slow curing speed, a long time for surface drying and hard drying, are easy to lose gloss after polishing, and have low working-hour efficiency. Cont...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/65
CPCC09D7/65C09D133/00C08L1/14
Inventor 胡善君
Owner 安庆瑞泰化工有限公司
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