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A kind of anti-oxygen barrier effect UV-curable coating and preparation method thereof

A technology for curing coatings and ultraviolet light, applied in epoxy resin coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve heating and other problems, and achieve the effect of simple preparation

Active Publication Date: 2019-08-20
国科广化(南雄)新材料研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantage is mainly that UV-heat curing requires heating, and UV-moisture curing has certain requirements for humidity.

Method used

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  • A kind of anti-oxygen barrier effect UV-curable coating and preparation method thereof
  • A kind of anti-oxygen barrier effect UV-curable coating and preparation method thereof
  • A kind of anti-oxygen barrier effect UV-curable coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] (1) Preparation of DPTS: Dissolve equimolar amounts of 4-dimethylaminopyridine and p-toluenesulfonic acid in hot toluene (80°C) respectively, mix and stir for 15 minutes, then cool to room temperature, and a large amount of white solid precipitates, which are After suction filtration and vacuum drying (the drying temperature is 50°C and the drying time is 12 hours), a white crystalline powder, namely DPTS, is obtained;

[0031] (2) Preparation of mercapto-terminated hyperbranched polyester

[0032] In the there-necked flask equipped with mechanical stirring, thermometer, reflux condenser and water separator, add 8.75g hyperbranched polyester Boltorn H20 (manufacturer is Swedish Perstorp AB company, molecular weight 1750, hydroxyl number is 16), 8.38g mercapto Acetic acid, 0.2g DPTS and 100ml toluene, heated in an oil bath, reflux at 120°C to separate the water, stop the reaction after reaching the theoretical water output (theoretical water output refers to the water ou...

Embodiment 1

[0034] A UV curable coating with anti-oxygen barrier effect is obtained by the following method: each component is counted in parts by weight: 80 parts of aliphatic polyurethane acrylic resin (its model is 3210, the manufacturer is Zhongshan Ketian Electronic Material Co., Ltd. ), 20 parts of hexanediol diacrylate, 3 parts of 2-hydroxyl-2-methyl-phenylacetone-1, 5 parts of mercapto-terminated hyperbranched polyester H20-SH, stir to obtain the coating, denoted as PU-5%.

Embodiment 2

[0036] A UV curable coating with anti-oxygen barrier effect is obtained by the following method: each component is counted in parts by weight: 80 parts of aliphatic polyurethane acrylic resin (its model is 3210, the manufacturer is Zhongshan Ketian Electronic Material Co., Ltd. ), 20 parts of hexanediol diacrylate, 3 parts of 2-hydroxyl-2-methyl-phenylacetone-1, 11 parts of mercapto-terminated hyperbranched polyester H20-SH, stir to obtain the coating, denoted as PU-11%.

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Abstract

The invention belongs to the field of ultraviolet-curable coatings, and discloses an ultraviolet-curable coating with oxygen inhibition resistance, and a preparation method thereof. The ultraviolet-curable coating with oxygen inhibition resistance is prepared from, by weight, 70-80 parts of acrylic resin, 20-30 parts of an active diluent, 1-3 parts of a photoinitiator and 2-15 parts of mercapto-terminated hyperbranched polyester. The coating has the advantages of high-efficiency energy saving and environmental protection, obtaining of a coating layer through one-time ultraviolet curing, double bond conversion rate reaching 80-95%, and substantial oxygen inhibition resistance.

Description

technical field [0001] The invention belongs to the field of ultraviolet curing coatings, and in particular relates to an ultraviolet curing coating with an anti-oxygen resistance effect and a preparation method thereof. Background technique [0002] UV curing technology is a high-efficiency, energy-saving and environmentally friendly new technology. Since the German Bayer company developed the first generation of UV-curing coatings in the 1960s, it has maintained rapid development and has been widely used in coatings and inks. , adhesives, printed circuit boards, information technology and biomedicine and many other fields. [0003] UV-curable coatings develop most rapidly and are widely used in many fields such as construction, furniture, and automobiles. However, in the actual application process, acrylate UV-curable coatings often have the phenomenon that the surface is not dry or white layering appears on the surface. This is mainly due to the effect of oxygen inhibit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D163/10C09D167/00C08G63/91
Inventor 吕满庚管啸晓吴昆
Owner 国科广化(南雄)新材料研究院有限公司
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