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Photochromic acrylic polyurethane varnish and preparation method thereof

An acrylic polyurethane and photochromic technology, which is applied in polyurea/polyurethane coatings, luminescent coatings, coatings, etc., can solve the problems of poor aging resistance or light stability, slow coloration and fading, and disappearance of photochromic properties and other problems, to achieve the effects of high fatigue resistance, excellent photosensitivity, and high fatigue resistance

Inactive Publication Date: 2012-08-08
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a preparation method of photochromic acrylic polyurethane varnish to solve the problem of poor photosensitivity of coating products, that is, slow coloring and fading rate, low fatigue resistance, that is, reversible change of coloring and fading after a certain period of time After that, the photochromic performance disappears, also known as the problem of poor aging resistance or light stability

Method used

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  • Photochromic acrylic polyurethane varnish and preparation method thereof
  • Photochromic acrylic polyurethane varnish and preparation method thereof
  • Photochromic acrylic polyurethane varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1,3,3-Trimethyl-3H-spiroindoline naphthoxazine 0.5kg,

[0031] Hydroxy acrylic resin, of which hydroxyl 3.0%; solid content 65%, 60kg,

[0032] High hydroxyl saturated polyester resin, of which the solid content is 80%, the hydroxyl group is 4.5%, 8.0kg,

[0033] Urea / urethane liquid thixotropic agent, of which solid content is 48%-55%, 0.1kg,

[0034] Acrylic leveling agent, 0.2 kg,

[0035] Silicone leveling agent, 0.2 kg,

[0036] Curing agent: hexamethylene diisocyanate trimer, of which the solid content is 90%, 21.5kg;

[0037] Preparation:

[0038] Take 1,3,3-trimethyl-3H-spiroindoline naphthoxazine, hydroxyl acrylic resin, high hydroxyl saturated polyester resin, urea / urethane liquid thixotropic agent, acrylic leveling in the formula agent, silicone leveling agent, prepare paint, filter and discharge; the paint and curing agent component hexamethylene diisocyanate trimer are formulated into photochromic acrylic polyurethane varnish according to the formul...

Embodiment 2

[0040] 1,3,3-Trimethyl-3H-spiroindoline naphthoxazine 1.75kg ,

[0041] Hydroxy acrylic resin, of which hydroxyl 3.0%; solid content 65%, 65 kg,

[0042] High hydroxyl saturated polyester resin, of which the solid content is 80%, the hydroxyl group is 4.5%, 10.0 kg,

[0043] Urea / urethane liquid thixotropic agent, with solid content of 48%-55%, 0.2 kg,

[0044] Acrylic leveling agent, 0.3 kg,

[0045] Silicone leveling agent, 0.3 kg,

[0046] Butyl acetate, 10.0 kg,

[0047] Curing agent: hexamethylene diisocyanate trimer, of which the solid content is 90%, 24.75 kg;

[0048] Preparation:

[0049] Take 1,3,3-trimethyl-3H-spiroindoline naphthoxazine, hydroxyl acrylic resin, high hydroxyl saturated polyester resin, urea / urethane liquid thixotropic agent, acrylic leveling in the formula agent, silicone leveling agent, prepare paint, add butyl acetate solvent to dilute, filter and discharge; this discharge and curing agent component hexamethylene diisocyanate trimer are...

Embodiment 3

[0051] 1,3,3-Trimethyl-3H-spiroindoline naphthoxazine 3.0 kg,

[0052] Hydroxy acrylic resin, of which hydroxyl 3.0%; solid content 65%, 70 kg,

[0053] High hydroxyl saturated polyester resin, of which the solid content is 80%, the hydroxyl group is 4.5%, 12.0 kg,

[0054] Urea / urethane liquid thixotropic agent, with solid content of 48%-55%, 0.3 kg,

[0055] Acrylic leveling agent, 0.4 kg,

[0056] Silicone leveling agent, 0.4 kg,

[0057] Butyl acetate, 20.0 kg,

[0058] Curing agent: hexamethylene diisocyanate trimer, of which the solid content is 90%, 28.0 kg;

[0059] Preparation:

[0060] Take 1,3,3-trimethyl-3H-spiroindoline naphthoxazine, hydroxyl acrylic resin, high hydroxyl saturated polyester resin, urea / urethane liquid thixotropic agent, acrylic leveling in the formula agent, silicone leveling agent, prepare paint, add butyl acetate solvent to dilute, filter and discharge; the paint and curing agent component hexamethylene diisocyanate trimer are formul...

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PUM

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Abstract

The present invention relates to a photochromic acrylic polyurethane varnish and a preparation method thereof, and belongs to the technical field of functional coating. The method comprises steps of: preparing a varnish from In 1, 3, 3- trimethyl-3H-spiroindolinonaphthoxazine, hydroxy acrylic resin, high hydroxy saturated polyester resin, urea / carbamic acid ester liquid thixotropic agent, acrylic leveling agent and organosilicone leveling agent; filtering out the materials or filtering out the materials and diluting by butyl acetate solvent; and preparing the paint and curing agent component cyclohexane diisocyanate trimer into the photochromic acrylic polyurethane varnish according to formula proportion. The photochromic acrylic polyurethane varnish provided by the invention has wide application value and development prospect.

Description

technical field [0001] The invention belongs to the technical field of functional coatings. Background technique [0002] During the photochemical reaction of photochromic compounds, many physical and chemical properties undergo obvious transient changes, such as refractive index, relative permittivity, geometric configuration, etc., and these changes are reversible. Changes in these characteristics make photochromic compounds have potential application prospects in many fields, such as optical information storage materials, optical switches, optical filters, displays, nonlinear optical materials, liquid crystal materials and other high-tech fields; photochromic glass, Photochromic glasses, photochromic coatings, photochromic textiles, photochromic inks and other protective, decorative and anti-counterfeiting materials. Since the 1980s, the research on photochromic materials has been relatively active, mainly focusing on its synthesis methods and performance research. At ...

Claims

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Application Information

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IPC IPC(8): C09D175/06C09D5/22C08G18/42C08G18/62
Inventor 王立艳
Owner JILIN JIANZHU UNIVERSITY
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