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Polyurethane specular putty coating and preparation method thereof

A polyurethane and putty technology, applied in the direction of filling slurry, etc., can solve the problems of rising putty cost, high resin cost, increasing base material, etc., and achieve the effect of long production time, low cost and extended service life.

Inactive Publication Date: 2012-11-14
西北永新涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, to increase the luster of putty, the traditional method is to increase the amount of base material (resin), which will lead to an increase in the cost of putty due to the high cost of resin

Method used

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  • Polyurethane specular putty coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Formula of polyurethane high-gloss putty coating

[0028] The polyurethane high-gloss putty paint of this embodiment, component A: component B = 8:1

[0029] Among them, A component is: polyester resin 30.0kg, wetting and dispersing agent 0.2kg, polysiloxane defoamer 0.8kg, organic bentonite anti-sedimentation agent 2.0kg, talcum powder 25.0kg, active calcium carbonate 27.0kg, weight Spar powder 5.0kg, rutile titanium dioxide 10.0kg.

[0030] B component is: diphenylmethane diisocyanate (MDI) curing agent 100kg.

[0031] 2. Preparation method of polyurethane high-gloss putty coating

[0032] The preparation method of the present embodiment polyurethane high-gloss putty coating comprises the following steps:

[0033] ①Preparation of component A: Weigh 30.0kg of 1150 polyester resin produced by Germany Bayer Co., Ltd. and add it to the high-speed dispersing axe. Add 0.2kg of wetting and dispersing agent, 0.8kg of polysiloxane defoamer, organic bentonite anti-foaming...

Embodiment 2

[0042] 1. Formula of polyurethane high-gloss putty coating

[0043] The polyurethane high-gloss putty paint of this embodiment, component A: component B = 6:1

[0044]Among them, A component is: polyester resin 35.0kg, wetting and dispersing agent 0.4kg, polysiloxane defoamer 0.6kg, polyamide wax anti-settling agent 1.0kg, talcum powder 30.0kg, activated calcium carbonate 17.0kg, Barite powder 10.0kg, rutile titanium dioxide 6.0kg.

[0045] B component is: diphenylmethane diisocyanate (MDI) curing agent 100kg.

[0046] 2. Preparation method of polyurethane high-gloss putty coating

[0047] The preparation method of the present embodiment polyurethane high-gloss putty coating comprises the following steps:

[0048] ①Preparation of component A: Weigh 35.0 kg of 1150 polyester resin produced by Bayer Co., Ltd. in Germany and add it to the high-speed dispersing axe. Add 0.4 kg of wetting and dispersing agent, 0.6 kg of defoaming agent, and 1.0 kg of polyamide wax anti-settling ...

Embodiment 3

[0057] 1. Formula of polyurethane high-gloss putty coating

[0058] The polyurethane high-gloss putty paint of this embodiment, component A: component B = 4:1

[0059] Among them, A component is: polyester resin 40.0kg, wetting and dispersing agent 0.3kg, polysiloxane defoamer 0.7kg, organic bentonite anti-sedimentation agent 1.5kg, talcum powder 20.0kg, active calcium carbonate 22.0kg, weight Spar powder 7.5kg, rutile titanium dioxide 8.0kg.

[0060] B component is: diphenylmethane diisocyanate (MDI) curing agent 100kg.

[0061] 2. Preparation method of polyurethane high-gloss putty coating

[0062] The preparation method of the present embodiment polyurethane high-gloss putty coating comprises the following steps:

[0063] ①Preparation of component A: Weigh 40.0 kg of 1150 polyester resin produced by Bayer Co., Ltd. in Germany and add it to the high-speed dispersing axe. Add 0.3 kg of wetting and dispersing agent, 0.7 kg of polysiloxane defoamer, and organic bentonite ant...

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Abstract

The invention provides a polyurethane specular putty paint which comprises an A component and a B component, wherein the mass ratio of the A component to the B component is (8:1)-(4:1); the A component is prepared from the following raw materials in percentage by weight: 30-30% of polyester resin, 0.2-0.4% of wetting dispersant, 0.6-0.8% of defoamer, 1-2% of anti-settling agent, 20-30% of talcum powder, 17-27% of activated calcium carbonate, 5-10% of barite powder and 6-10% of titanium dioxide; and the B component is a diphenylmethane diisocyanate curing agent. The invention also provides a polyurethane specular putty paint preparation method which is high in production efficiency. The polyurethane specular putty paint has the characteristics of high gloss, mellow state, excellent coating property, good polishing property, strong adhesive force, good flexibility, low cost and small toxicity; and the workability is excellent, the defects on the surface of a substrate or a coating after the paint is coated can be effectively repaired and then the service life of the substrate can be prolonged, so that the polyurethane specular putty paint can be widely applied to the hole filling, repairing and coating of surfaces of engineering machinery such as glass fiber reinforced plastics, steels and the like.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a solvent-free, two-component polyurethane high-gloss putty coating. Background technique [0002] Putty is a kind of thick paste paint, which is applied on the primer or directly on the object to remove uneven defects on the surface of the object to be coated, to enhance the protection life of the object to be coated, and to enhance the coating effect. [0003] Polyurethane putty is one of the common putties in putty. It is generally made of polyester polyol, acrylic or alkyd resin as the base material, and is formulated with a large amount of filler and an appropriate amount of coloring pigment. Polyurethane putty has attracted much attention because of its good physical and mechanical properties and chemical corrosion resistance. At present, in the coating industry at home and abroad, the amount of polyurethane putty accounts for 30% of the total amount of putty, and it is s...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 姚改宁文立新李华明王小牧许玉霞孙玲雍涛宋小莉
Owner 西北永新涂料有限公司
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