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UV curing color decorative coating

A decorative coating and ultraviolet light technology, applied in the field of coatings, can solve the problems of unresolved deep-layer curing, low adhesion, and inability to reach the deep layer of the coating, etc.

Inactive Publication Date: 2009-04-15
BAODING LUCKY POLYMER MATERIAL TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the high hiding power pigments added to the UV curing system can satisfy the decorative effect on the surface of the substrate, due to the addition of pigments, the reflection, refraction and scattering of light on the surface of the pigment are strengthened, making it difficult for light to pass through. Reaching the deep layer of the coating, that is, it cannot meet the requirements of deep curing, resulting in incomplete curing of the paint film, low adhesion, poor hardness and weather resistance
At the same time, due to the low viscosity and viscosity of coatings that meet the requirements of curtain coating, roller coating, etc., the pigments added to the UV curing system are easy to re-aggregate after dispersion, which is not conducive to the use and storage of coatings.
The Chinese patent with the publication number CN1176985 discloses a special UV-curable paint for wooden pencils and a preparation method thereof, but the pigments and fillers are transparent and translucent, and the problem of deep curing under the condition of high hiding power of the pigments is not solved. And there is no clear solution to the hardness, scratch resistance and weather resistance of the paint film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1. UV curing decorative paint-red

[0046] Bisphenol A epoxy acrylate (WSR-U125) 6,

[0047] Aliphatic polyurethane hexaacrylate (6145-100) 5,

[0048] Diluted aliphatic polyurethane diacrylate (611B-85) 25,

[0049] Polyester acrylate prepolymer (CN2203) 10,

[0050] Dipentaerythritol hexaacrylate (DPHA) 5,

[0051] Trimethylolpropane Triacrylate (TMPTA) 25,

[0052] Dipropylene glycol diacrylate (DPGDA) 10,

[0053] Bis(2,6-dimethoxybenzoyl)-(4′,4′-dimethyloctyl-2)phosphine oxide 1,

[0054] Pigment Red 5 2,

[0055] calcium carbonate 4,

[0056] Silica (H18) 0.5,

[0057] Polymer wetting and dispersing agent (Disperbyk183) 0.5,

[0058] Polyether modified polydimethylsiloxane (BYK333) 0.1,

[0059] preparation:

[0060] (1) Preparation: Mix 2 / 3 of the prepolymer with all the coloring pigments, system pigments, and dispersants, then grind and disperse with a three-roller or other grinding equipment, and the fineness is required to be less than 15...

Embodiment 2

[0063] Embodiment 2. UV curing decorative coating-blue

[0064] Bisphenol A epoxy acrylate (WSR-U125) 15,

[0065] Modified bisphenol A epoxy acrylate (623-100) 10,

[0066] Aliphatic polyurethane acrylate (CN962) 5,

[0067] Polyester acrylate (QA-98) 2,

[0068] Pentaerythritol triacrylate (PETA) 7,

[0069] Tripropylene glycol diacrylate (TPGDA) 20,

[0070] Neopentyl glycol diacrylate (NPGDA) 10,

[0071] Propoxylated Neopentyl Glycol Diacrylate (PO-NPGDA) 10,

[0072] 1,6-Hexanediol diacrylate (HDDA) 16,

[0073] 2-methyl-1-(4-methylmercapto)-2-morpholineacetone-1 (Irgacure907) 2,

[0074] α,α-Dimethyl-α-hydroxyacetophenone (Darocur1173) 2,

[0075] Pigment Blue 15:3 15,

[0076] calcium carbonate 5,

[0077] Silica (H15) 0.5,

[0078] Polymer wetting and dispersing agent (Disperbyk170) 5,

[0079] Polyether modified polydimethylsiloxane (BYK333) 0.1,

[0080] Polyether modified polydimethylsiloxane (TGO432) 0.5,

[0081] preparation:

[0082] (1) Mix prepo...

Embodiment 3

[0085] Example 3. UV Curing Decorative Coating-Yellow

[0086] Diluted Modified Bisphenol A Epoxy Acrylate (6231A-80) 10,

[0087] Aliphatic urethane acrylate (CN9013) 5,

[0088] Aliphatic polyurethane acrylate (CN966B85) 10,

[0089] Polyester acrylate (CN2203) 6,

[0090] Pentaerythritol tetraacrylate (PETTA) 5,

[0091] Dipentaerythritol Pentaacrylate (DPEPA) 5,

[0092] Tripropylene glycol diacrylate (TPGDA) 15,

[0093] Dipropylene glycol diacrylate (DPGDA) 5,

[0094] 2-methyl-1-(4-methylmercapto)-2-morpholineacetone-1 (Irgacure907) 3,

[0095] 1-Hydroxycyclohexylacetophenone (Irgacure184) 2,

[0096] 2,4,6-Trimethylbenzoyldiphenylphosphine oxide (LucirinTPO) 3,

[0097] Pigment Yellow 15:3 13,

[0098] Silica (H2000) 0.3,

[0099] Polymer wetting and dispersing agent (Disperbyk171) 5,

[0100] Polyether modified polydimethylsiloxane (BYK307) 0.5,

[0101] Polyether modified polydimethylsiloxane (TEGO432) 0.5,

[0102] Fluorocarbon modified polyacrylate (E...

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Abstract

The invention relates to an ultraviolet curing color decorative coating, the components of the coating and the parts by weight thereof are as follows: 5 to 25 parts of epoxy acrylate prepolymer, 5 to 30 parts of polyurethane acrylate prepolymer, 2 to 10 parts of polyester acrylate prepolymer, 15 to 70 parts of acrylate monomer, 1 to 10 parts of photoinitiator, 1 to 35 parts of pigment, 0.5 to 10 parts of dispersant and 0.1 to 2 parts of auxiliary agent, the acrylate monomer is a mixture of the monomer with bifunctionality and the monomer with high functionality, wherein, the mixture ratio of the monomer with high bifunctionality to the monomer with bifunctionality is 1: 0.3 to 8. Compared with an ultraviolet curing transparent varnish, the ultraviolet curing color decorative coating has stronger decorative effect and almost the same curing speed, paint film hardness, adhesion, paint film gloss, and the like; and compared with a traditional solvent based colored paint, the ultraviolet curing color decorative coating does not contain volatile organic solvent, thereby avoiding the pollution and greatly improving the production efficiency. The ultraviolet curing color decorative coating is applicable to the decoration of plastics, wood materials, metals and other base materials.

Description

Technical field [0001] The invention relates to a paint, in particular to an ultraviolet curable color decorative paint. Background technique [0002] UV curing products have the characteristics of energy saving, environmental protection, economy and high efficiency, so they are widely used in various fields. At present, UV curing technology has been widely used in coatings, inks, electronic chemicals, adhesives, medical equipment and other fields. [0003] Most of the paints currently used for surface decoration of various substrates are solvent-based. Solvent-based paints can basically meet the surface decoration effect requirements of substrates, but they have shortcomings such as insufficient paint film, low gloss, low hardness, poor weather resistance, unsatisfactory decorative effects, and low production efficiency. In addition, solvent-based paints generally use large amounts of volatile organic solvents (VOC), which can easily cause environmental pollution. Althou...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D5/29
Inventor 刘志刚刘伟永宋书锋刘赢梁笑丛
Owner BAODING LUCKY POLYMER MATERIAL TECH DEV
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