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A kind of light curing polyurethane coating and its preparation method and application

A polyurethane coating and light-curing technology, applied in polyurea/polyurethane coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve the problems of low strength and many pores in the film, and achieve the effect of strong heat resistance

Active Publication Date: 2021-08-03
北京博瑞众诚科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above two inventions all add a polymerization inhibitor during the polymerization of urethane acrylate to slow down the polymerization rate of isocyanate to form a dense film. Influence, the final film formed by the invention has more pores and lower strength

Method used

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  • A kind of light curing polyurethane coating and its preparation method and application
  • A kind of light curing polyurethane coating and its preparation method and application
  • A kind of light curing polyurethane coating and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0085] A photocurable polyurethane coating composed of the following raw material components:

[0086] The A component includes: polyurethane acrylate (Yantai Houde Polymer Material Co., Ltd., YK2106), 20 methacrylate, polymetanpartate (Bayer Polymer Co., Ltd. NH1420) 10 copies of pigments (10 pieces of titanium white powder (golden red, brand CR8282) and 0.1 parts of color-carbon carbon (6000 mesh);

[0087] B components include parts by weight, including: liquefied diphenylmethane diisocyanate (Wanhua Chemistry) MDI-50) 100 parts of 100 parts and polycyclopropane ether diol (Shandong Lanxing East China Co., Ltd., DL2000D);

[0088] The C component is photoinitiator 184, and the chemical component is 1-hydroxycyclohexylphenylmethyl;

[0089] The mass ratio of the A component, the B component, and the C component is 100: 1.5.

[0090] The preparation method of the photocurable urethane coating includes the steps of:

[0091] (1) 60 parts of polyurethane acrylate were stirred at ...

Embodiment 2

[0095] In the same embodiment, the difference is that the b component is subjected to 40 parts by weight of the partial part of the diisocyanate 40 parts and 40 parts of the polycyclopropane ether diol, the A component, B component and C group. The mass ratio of points is 100: 80: 1.5, the other components and the preparation method are constant.

Embodiment 3

[0097] In the same embodiment, the difference is that the component B components comprise: 40 parts of the liquefied diphenylmethane diisocyanate and 40 parts of polycyclopropane ether glycol, the A component, B component and C group The mass ratio of the division is 100: 100: 1.5, the other components content and the preparation method are constant.

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Abstract

The invention provides a light-cured polyurethane coating and a preparation method and application thereof. The coating is composed of the following raw material components: component A includes by weight: 60-80 parts of polyurethane acrylate, 10-20 parts of reactive monomer diluent, 1-20 parts of amino resin, and 0.05-10 parts of pigment and 10-30 parts of filler; B component includes by weight: 40-100 parts of isocyanate and 40-100 parts of polyol; C component is a photoinitiator. The light-curable polyurethane coating of the invention can form a dense and non-porous elastic coating film with high mechanical strength, heat and cold resistance, corrosion resistance and aging resistance after being cured.

Description

Technical field [0001] The invention belongs to the field of building materials, and more particularly to a photocurable polyurethane coating and a preparation method thereof. Background technique [0002] Polyurethane elastic protective coatings have been used very widely in the field of waterproof and anti-corrosion, but since the polyurethane coating produces bubbles, or the isocyanate and a hydroxylamine group, or the alternatives, or the hydroxyamine group, or the like. The effect of the powder content in the coating component produces bubbles, often causes the coating film density to decrease, affects the protection effect, and more air holes will affect the mechanical strength of solidification film formation, it is difficult to get high-strength and protective properties. Elasticity. Coating film. [0003] CN 105566607A discloses a modified polyurethane acrylate, including 150-500 parts of a weight of the weight, 50-100 parts of polymerization of polymeris, and 80-135 par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D175/08C09D175/02C09D5/08C09D7/61
CPCC08K2003/2241C08K2003/3045C08L2201/08C08L2205/02C08L2205/03C09D5/08C09D5/18C09D175/08C09D175/14C09D7/61C08L75/08C08L75/02C08K3/22C08K3/04C08K3/30C08L75/14
Inventor 刘演新王晓康匡建芳
Owner 北京博瑞众诚科技有限公司
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