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Environment friendly anti-ageing herbal polyurethane white paint for woodware

An anti-aging and environmentally friendly technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor anti-aging performance, yellowing and cracking of paint films, and achieve excellent anti-aging performance and environmental protection in construction leveling. , Good construction leveling effect

Active Publication Date: 2013-12-04
中山市丽莎涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional white topcoats contain conjugated double bonds in the resin and benzene rings (toluene diisocyanate and trimethylolpropane prepolymer) in the curing agent. , the double bond is destroyed, resulting in poor aging resistance of the paint film, powder removal, cracking, yellowing, and peeling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The anti-aging herbal environmentally friendly polyurethane white paint for woodware of the present invention is composed of three components: A, A, B, B, and C and C. The A component: first add 16.5 kg of vegetable coconut oil Alkyd resin, 0.5kg wetting and dispersing agent, 3kg PMA and 30kg rutile titanium dioxide are added to a high-speed mixer in turn, stirred and dispersed and ground to a fineness ≤25um, and then added 20kg vegetable coconut oil resin and 18kg vegetable castor oil alkyd resin in sequence. 1kg polyamide wax slurry, 3kg matting powder, 0.3kg polyethylene wax powder, 0.3kg antioxidant, 0.5kg ultraviolet light absorber, 0.3kg light stabilizer, 0.3kg leveling agent, 0.2kg defoamer, 3.1kg N-Butyl acetate and 3kgPMA are dispersed and stirred at a speed of 1000r / min until the fineness is ≤25um, and the viscosity is adjusted to 5000-6000CPS / 25℃ to obtain the first component;

[0036] Component B: mixing 50kg dehydrated n-butyl ester, 20kg HDI prepolymer, 30kg ...

Embodiment 2

[0040] The anti-aging herbal environmentally friendly polyurethane white paint for woodware of the present invention is composed of three components: A, A, B, B, and C and C. The first component: first add 18.5kg of vegetable coconut oil Alkyd resin, 0.5kg wetting and dispersing agent, 3kg PMA and 28kg rutile titanium dioxide are sequentially added to a high-speed mixer, stirred and dispersed and ground to a fineness of ≤25um, and then 15kg vegetable coconut oil resin and 20kg vegetable castor oil alkyd resin are added sequentially. 1.5kg polyamide wax slurry, 5kg matting powder, 0.3kg polyethylene wax powder, 0.3kg antioxidant, 0.5kg ultraviolet light absorber, 0.3kg light stabilizer, 0.3kg leveling agent, 0.2kg defoamer, 3.6 kg n-butyl acetate and 3 kg PMA are dispersed and stirred at a speed of 1000r / min until the fineness is ≤25um, and the viscosity is adjusted to 5000-6000CPS / 25℃ to obtain the first component;

[0041] Component B: mixing 50kg dehydrated n-butyl ester, 22kg ...

Embodiment 3

[0045] The anti-aging herbal environmentally friendly polyurethane white paint for woodware of the present invention is composed of A, A component, B, B component, C, C component three components, of which component A: first add 14.5kg vegetable coconut oil Alkyd resin, 0.5kg wetting and dispersing agent, 3kg PMA and 32kg rutile titanium dioxide were added to the high-speed mixer in turn, stirred and dispersed and ground to a fineness of ≤25um, and then added 23.5kg vegetable coconut oil resin and 15kg vegetable castor oil alkyd resin sequentially , 1kg polyamide wax slurry, 3.5kg matting powder, 0.3kg polyethylene wax powder, 0.3kg antioxidant, 0.5kg ultraviolet light absorber, 0.3kg light stabilizer, 0.3kg leveling agent, 0.2kg defoamer, 3kg n-butyl acetate and 2.1kg PMA are dispersed and stirred at a rotation speed of 1000r / min until the fineness is ≤25um, and the viscosity is adjusted to 5000-6000CPS / 25℃ to obtain the first component;

[0046] Component B: mixing 50kg dehydra...

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PUM

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Abstract

The invention discloses an environment friendly anti-ageing herbal polyurethane white paint for woodware, comprising: an ingredient A, an ingredient B and an ingredient C, wherein the ingredient A is obtained by mixing plant coconut oil alkyd resin, plant castor oil alkyd resin, a wetting and dispersing agent, PMA (Propylene Glycol Monomethyl Acetate), dimethylbenzene, an antioxidant, an ultraviolet absorber, a light stabilizer, rutile titanium dioxide powder, extinction powder, polyamide wax pulp, polyethylene wax powder, a defoaming agent, a leveling agent and n-butyl acetate and stirring and dispersing at a high speed; the ingredient B is obtained by stirring and mixing dehydrated n-butyl acetate, an HID (Hexamethylene Diisocyanate) prepolymer and a TDI (Toluene Diisocyanate) trimer; and the ingredient C is obtained by uniformly mixing and stirring n-butyl acetate and PMA, wherein the weight percentages of the three ingredients A, B and C are 1: (0.5-0.6): (0.6-0.7). The invention aims at overcoming the defects in the prior art and provides an environment friendly anti-ageing herbal polyurethane white paint for woodware, which is powder shedding resistant, cracking resistant and yellowing resistant.

Description

Technical field [0001] The invention relates to an anti-aging herbal environment-friendly polyurethane white paint for woodware. Background technique [0002] Polyurethane white paint is a kind of white paint with excellent comprehensive performance, which is widely used in wood decoration. Conventional white topcoats contain conjugated double bonds in the resin and benzene rings (toluene diisocyanate and trimethylolpropane prepolymer) in the curing agent. After the coating is formed into a film, it is affected by the external environment such as ultraviolet rays, oxygen, and temperature. , The double bond is destroyed, resulting in poor anti-aging performance of the paint film, powdering, cracking, yellowing, and peeling. Summary of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an anti-aging herbal environmentally friendly polyurethane white finish paint for woodware which is anti-powdering, anti-cracking...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/12
Inventor 宫献银孙球欧涛
Owner 中山市丽莎涂料有限公司