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Water-borne UV paint and preparation method thereof

A water-based coating technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of corrosion resistance, aging resistance, poor acid and alkali resistance, inability to be widely used, and unsatisfactory adhesion. Fast curing speed, accelerated curing speed, and enhanced adhesion

Active Publication Date: 2016-02-17
SHENYANG SHUNFENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some shortcomings in UV coatings, such as: (1) It is not suitable for coating the substrate, and the coating is easy to fall off due to its unsatisfactory adhesion after coating; (2) Corrosion resistance, aging resistance and acid and alkali resistance are poor Poor, can not meet the requirements of widespread use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This embodiment provides a water-based UV coating, which is composed of the following raw materials in mass percentage: 30% polyurethane acrylate, 25% epoxy acrylate, 10% water-based hyperbranched polyurethane, 10% fluorocarbon resin, and 15% photoinitiator. %, dispersant 5%, additives 5%.

[0017] The urethane acrylate is a fluorine-containing urethane acrylate; the epoxy acrylate is a mixture of bisphenol A epoxy acrylate and aliphatic epoxy tetraacrylate in a mass ratio of 4:6; the auxiliary agent is a mass ratio of 5:3 mixture of silicone leveling agent and fluorocarbon modified leveling agent; the photoinitiator is α-dimethoxy-α-phenylacetophenone.

[0018] This embodiment also provides a method for preparing a water-based UV coating, which includes the following steps.

[0019] Step 1. Add 30% fluorine-containing urethane acrylate, 25% epoxy acrylate and 10% water-based hyperbranched polyurethane into a designated container by mass percentage, and perform mechani...

Embodiment 2

[0022] This embodiment provides a water-based UV coating, which is composed of the following raw materials in mass percentage: 35% polyurethane acrylate, 23% epoxy acrylate, 7% water-based hyperbranched polyurethane, 10% fluorocarbon resin, and 12% photoinitiator. %, dispersant 3%, additives 10%.

Embodiment 3

[0024] This embodiment provides a water-based UV coating, which is composed of the following raw materials in mass percentage: 28% polyurethane acrylate, 30% epoxy acrylate, 7% water-based hyperbranched polyurethane, 8% fluorocarbon resin, and 13% photoinitiator. %, dispersant 4%, additive 10%.

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Abstract

The invention provides water-borne UV paint and a preparation method thereof. The water-borne UV paint is prepared from, by mass, 25%-35% of urethane acrylate, 20%-30% of epoxy acrylate, 5%-10% of water-borne hyperbranched polyurethane, 5%-10% of fluorocarbon resin, 5%-15% of photoinitiator, 2%-5% of dispersing agent and 2%-10% of assistant. Urethane acrylate is fluorinated fluorinate containing urethane acrylate, epoxy acrylate is a mixture of bisphenol A epoxy acrylate and epoxy acrylate epoxy tetrapropylene acid ester, and the auxiliary is a mixture of an organic silicone flatting agent and a fluorocarbon modified flatting agent. The preparation method of the water-borne UV paint is simple in process, the prepared paint has good attachment performance and water-repellent and water-resistant performance, compared with traditional UV paint, the water-borne UV paint is higher in curing speed, and bubbles generated in the curing process are avoided. Meanwhile, the corrosion resistance, aging resistance and acid-alkali resistance of the paint are remarkably improved, and the water-borne UV paint is ideal metal and woodware surface paint.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based UV coating and a preparation method thereof. Background technique [0002] Light-curing coating (UV coating) is a new type of coating with high efficiency, energy saving and environmental protection. Traditional UV coatings use active diluents to adjust rheology, resulting in a strong pungent smell and adverse effects on the physical properties of the coating film. Compared with traditional UV coatings, water-based UV coatings not only achieve low VOC, but also have no irritating odor during the curing process, and have no physical harm to builders and end users. Therefore, oligomers with high relative molecular weight can be used in water-based light-curing coatings instead of reactive diluents to overcome this shortcoming. However, there are still some shortcomings in UV coatings, such as: (1) It is not suitable for coating the substrate, and the coating is easy...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D175/04C09D127/12C09D7/12C09D5/08
CPCC08L2205/03C09D5/08C09D7/63C09D175/14C08L75/04C08L27/12
Inventor 刘春峰沙世强于海舒
Owner SHENYANG SHUNFENG NEW MATERIAL CO LTD
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