Polyurethane crackle paint for glass coating, and preparation method and applying method thereof

A polyurethane and crack paint technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems affecting application, poor transparency, poor adhesion, etc., achieve fast drying speed at room temperature, good adhesion strength and hardness, and excellent The effect of decoration and protection

Active Publication Date: 2013-03-20
上海展辰涂料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the one-component crack paint has good workability and has developed relatively maturely, the one-component crack paint has poor tran

Method used

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  • Polyurethane crackle paint for glass coating, and preparation method and applying method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Recipe 1

[0048] Hydroxy-containing component A formula: (weight)

[0049] Hydroxy acrylic resin 45%,

[0050] Solvent 30%,

[0051] Acetyl cellulose 4%,

[0052] Fumed silica 18%,

[0053] Adhesion Promoter 2%,

[0054] Auxiliary (defoamer) 1%,

[0055] Curing agent component B formula: (weight)

[0056] Hexyl diisocyanate biuret 40%,

[0057] Solvent 60%.

[0058] For the rest, see Table 1 for the formula.

[0059] Table 1 each formula Kg of the present invention

[0060]

[0061] The hydroxy acrylic resin in the first component can be A450 from Bayer.

[0062] The solvent can be butyl acetate of Taixing Jinjiang urethane grade.

[0063] Cellulose acetate butyrate refers to cellulose acetate butyrate. The technical requirement is that the viscosity is 0.2 seconds. CAB551-0.2 from Eastman Company of the United States can be used.

[0064] Fumed silica can be A380 type fumed silica from German EVONIK company, technical requirements: specific surface area...

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Abstract

The present invention discloses a polyurethane crackle paint for glass coating. The polyurethane crackle paint includes two components, wherein, on a weight basis, hydroxyl group-containing component A comprises: 32%-50% of hydroxy acrylic resin, 28% -38% of a solvent, 4%-5% of cellulose acetate butyrate, 15%-20% of fumed silica, 2%-3% of an adhesion-promoting agent, and 1%-2% of an additive; and a curing agent component B comprises: 40%-45% of hexamethylene diisocyanate biuret, and 55%-60% of a solvent. The present invention also discloses a preparation method and an applying method for the polyurethane crackle paint for glass coating. The present invention is a polyurethane crackle paint which can be dried at room temperature, and is applied on the glass surface with the supporting use of the curing agent; the product obtained after the applying has a fast drying speed at room temperature, high gloss, completely transparent crackle paint without affecting the decorative effect for the glass, and very good adhesion strength and hardness on the glass, thereby achieving purposes of excellent decoration and protection.

Description

technical field [0001] The invention relates to industrial and architectural decorative paints, in particular to a polyurethane crack paint used for glass painting and a preparation method and construction method thereof. Background technique [0002] Crack paint is widely used in home, hotel and various materials because of its good decorative effect. [0003] At present, the well-known crack paint is one-component, generally nitro or one-component acrylic type. The irregular crack effect formed by rapid drying and shrinkage after construction. [0004] Although the one-component crack paint has good workability and is relatively mature, the one-component crack paint has poor transparency and poor adhesion on glass, metal and other materials because it contains a lot of powder. , the strength is poor, which affects its application. SUMMARY OF THE INVENTION [0005] The purpose of the present invention is to provide a polyurethane crack paint for glass coating and its p...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12C09D5/28C03C17/42
Inventor 周琼辉刘志刚
Owner 上海展辰涂料有限公司
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