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Double-component polyurethane coating and production method and construction method

A two-component polyurethane and coating technology, applied in polyurea/polyurethane coatings, coatings, and devices for coating liquids on surfaces, can solve problems affecting production efficiency, curing temperature, long drying and curing cycle, and large energy consumption.

Inactive Publication Date: 2010-01-06
DONGGUAN JIAZHUOCHENG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some paint manufacturers use two-component polyurethane paints of various colors as primers, and then apply a layer of two-component polyurethane varnish for finishing. However, this solution requires the substrate to be ABS or ABS+PC plastic to solve the problem of primer and PC. Adhesion to plastic substrates, and since both layers are polyurethane coatings, higher curing temperatures are required for longer drying and curing cycles (each layer needs to be baked at 70°C for 30 minutes, and aging at room temperature for 72 hours after double-layer coating can only be packaged), which not only affects production efficiency but also requires greater energy consumption. For coating manufacturers, using HIPS materials as injection molding materials can save raw material costs, shorten the coating production cycle as much as possible and improve production efficiency. expected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] 11A, a thermoplastic acrylic resin solution 18 with a solid content of 50%;

[0100] 11B. High molecular weight block copolymer solution 2 with pigment affinity groups;

[0101] 11C, Ethylene glycol butyl ether 6.9;

[0102] 11D, ethylene glycol methyl ether acetate 7;

[0103] 11E, butyl acetate 3;

[0104] 11F, carbon black 2.5;

[0105] 11G, a thermoplastic acrylic resin solution with a solid content of 50% 50;

[0106] 11H, containing 15% cellulose acetate butyrate resin solution 10;

[0107] 11I, polyester resin 0.5;

[0108] 11J, polyether siloxane copolymer 0.1

Embodiment 2

[0110] 11A, a thermoplastic acrylic resin solution 17 with a solid content of 50%;

[0111] 11B. High molecular weight block copolymer solution 1 with pigment affinity groups;

[0112] 11C, butyl glycol ether 7;

[0113] 11D, ethylene glycol methyl ether acetate 6;

[0114] 11E, butyl acetate 2;

[0115] 11F, carbon black 2.8;

[0116] 11G, a thermoplastic acrylic resin solution with a solid content of 50% 50;

[0117] 11H, 15% cellulose acetate butyrate resin solution 11;

[0118] 11I, polyester resin 1;

[0119] 11J, polyether siloxane copolymer 0.2

[0120] 11K, fumed silica 1;

[0121] 11L, PTFE modified polyethylene wax 1.

Embodiment 3

[0123] 11A, a thermoplastic acrylic resin solution 16 with a solid content of 50%;

[0124] 11B. High molecular weight block copolymer solution 2 with pigment affinity groups;

[0125] 11C, butyl glycol ether 5;

[0126] 11D, ethylene glycol methyl ether acetate 5;

[0127] 11E, butyl acetate 3;

[0128] 11F, carbon black 3.5;

[0129] 11G, a thermoplastic acrylic resin solution with a solid content of 50% 48.7;

[0130] 11H, containing 15% cellulose acetate butyrate resin solution 12;

[0131] 11I, polyester resin 1.5;

[0132] 11J, polyether siloxane copolymer 0.3

[0133] 11K, fumed silica 2;

[0134] 11L, PTFE modified polyethylene wax 1.

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Abstract

The present invention discloses a bicomponent polyurethane paint and preparation method and execution method thereof, wherein the bicomponent polyurethane paint includes primer, primer fluidifying agent and bicomponent polyurethane PU varnish lacquer that matched with the primer. The bicomponent polyurethane PU paint can be used on HIPS plastic rubber case with complicated structure, and can improve productivity effect and save energy sources, have appearance with high lustrousness and high fullness; the preparation method provides simple producing process and the execution method provides convenient painting.

Description

technical field [0001] The invention relates to a two-component polyurethane PU coating and its production method and construction method. This method is especially suitable for coating large-area plastic casings with complex structures such as televisions, air conditioners, refrigerators, and washing machines. The product breaks through the PU coating. The simple coating of paint on HIPS and PS plastic substrates can also be applied to ABS and ABS+PC plastic substrates, so that the painted plastic casing has a high-gloss and high-fullness appearance effect, which has a good decorative and protective. Background technique [0002] The coating of plastic shells is currently popular with high-gloss appearance. In order to achieve high-gloss requirements, two-component polyurethane coatings or UV radiation curing coatings are mainly used for coating. The design of the wire body is relatively complicated, and a large amount of money needs to be invested in the modification of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D133/00C09D5/38C08J3/09C08L1/14C09D7/14B05D1/36B05D7/24B05D3/00C09D7/80
Inventor 黄杰良吴小浩
Owner DONGGUAN JIAZHUOCHENG CHEM TECH
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