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White paint special for polyurethane hard expanded polystyrene

A technology of styrofoam and polyurethane, applied in the direction of polyurea/polyurethane coating, coating, etc., can solve the problem of paint film peeling operation process, etc., and achieve the effect of simple operability, high adhesion, and labor cost saving

Active Publication Date: 2014-11-19
CHENGDU ZHANCHEN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special white paint for polyurethane hard foam, which solves the problems of peeling off of the paint film and many operating processes caused by direct spraying of ordinary PU white primer on the polyurethane hard foam on the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Formula: Component A: acrylic resin: 45 parts, grinding aid: zinc stearate 5 parts, titanium dioxide: 14.5 parts of rutile titanium dioxide, petroleum solvent: 5 parts of butyl acetate, inorganic filler: heavy carbonic acid 25 parts of calcium, anti-settling agent: 5 parts of organic bentonite, defoaming agent: 0.2 parts of foam-breaking polysiloxane liquid, leveling agent: 0.3 parts of polyacrylate compound.

[0021] Component B: 100 parts of polyisocyanate with a solid content of 50%.

[0022] Production process: Put acrylic acid resin in → add butyl acetate → stir evenly at low speed → add defoamer and leveling agent in sequence → disperse at medium speed for 10 minutes → add titanium dioxide → disperse at high speed for 10 minutes → add organic bentonite in sequence, Calcium carbonate and zinc stearate → disperse at high speed for 20 minutes to fineness ≤ 55 microns.

[0023] The appearance of the obtained white paint is: white viscous liquid; the surface drying ti...

Embodiment 2

[0025] Formula: 50 parts of acrylic resin, grinding aid: 3 parts of zinc stearate, titanium dioxide: 13.5 parts of rutile titanium dioxide, petroleum solvent: 2 parts of butyl acetate, inorganic filler: 22 parts of ground calcium carbonate, Anti-settling agent: 4 parts of organic bentonite, defoaming agent: 0.1 part of foam-breaking polysiloxane liquid, leveling agent: 0.5 part of polyacrylate compound.

[0026] Component B: 100 parts of polyisocyanate with a solid content of 50%.

[0027] Production process: Put acrylic resin into → add styrene → stir evenly at low speed → add defoamer and leveling agent in sequence → disperse at medium speed for 10 minutes → add titanium dioxide → disperse at high speed for 10 minutes → add organic bentonite in sequence, heavy Calcium carbonate and zinc stearate→disperse at high speed for 20 minutes to fineness≤55 microns.

[0028] The appearance of the obtained PE unsaturated polyester white primer is: white viscous liquid; the surface dry...

Embodiment 3

[0030] Formula: acrylic resin: 55 parts, grinding aid: zinc stearate 5 parts, titanium dioxide: 12.5 parts of rutile titanium dioxide, petroleum solvent: 5 parts of butyl acetate, inorganic filler: ground calcium carbonate 19 parts, Anti-settling agent: 3 parts of organic bentonite, defoaming agent: 0.5 parts of foam-breaking polysiloxane liquid, leveling agent: 0.2 parts of polyacrylate compound.

[0031] Component B: 100 parts of toluene diisocyanate adduct with a solid content of 50%.

[0032] Production process: Put acrylic acid resin in → add butyl acetate → stir evenly at low speed → add defoamer and leveling agent in sequence → disperse at medium speed for 10 minutes → add titanium dioxide → disperse at high speed for 10 minutes → add organic bentonite in sequence, Calcium carbonate and zinc stearate → disperse at high speed for 20 minutes to fineness ≤ 55 microns.

[0033] The appearance of the obtained PE unsaturated polyester white primer is: white viscous liquid; t...

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Abstract

The invention discloses a white paint special for polyurethane hard expanded polystyrene. The white paint comprises a component A and a component B, wherein the component A comprises the following materials in parts by weight: 45 to 55 parts of acrylic resin, 3 to 5 parts of a polishing auxiliary agent, 10 to 15 parts of titanium pigment, 2 to 5 parts of a petroleum solvent, 20 to 25 parts of an inorganic filler, 3 to 5 parts of an anti-settling agent, 0.1 to 0.5 part of a defoaming agent and 0.2 to 0.5 part of a leveling agent; and the component B comprises 100 parts by weight of polymeric isocyanate of which the solid content is 50 percent. The white paint special for polyurethane hard expanded polystyrene can be directly sprayed on the polyurethane hard expanded polystyrene without making a polyurethane (PU) closing primer, and the performance of the white paint exceeds adhesive force, covering power, paint film fullness and luster of a PU white primer which is made after making the PU closing primer. By the white paint, high adhesive force of a paint film is provided, the labor cost is saved, the labor hour is shortened, and the simplicity and operability are strong.

Description

[0001] A special white paint for polyurethane rigid foam technical field [0002] The invention relates to a two-component paint, in particular to a special white paint for hard polyurethane foam. Background technique [0003] With the continuous development of the furniture market, the use of polyurethane materials as carving substrates instead of wood is a trend and trend of furniture, occupying a large market share. The painting process of general furniture factories is to spray PU sealing primer or PU transparent primer first, spray PU white primer after drying and polishing, and then spray PU white topcoat after drying and polishing. Through market research, it is found that many furniture factories directly use general-purpose PU paint to spray on the surface, which will cause poor adhesion, poor fullness of the paint film, or increase the adhesion by spraying special bridging agents to achieve better coating effects. The process increases the difficulty of the proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D133/00
Inventor 吴勇黄铁刚
Owner CHENGDU ZHANCHEN PAINT
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