Vacuum electroplating UV photo-curing primer and preparation method thereof

A technology of vacuum electroplating and light curing, applied in coatings, primers, polyester coatings, etc., can solve the problem of reducing the coating quality of primers and plastic substrates, the difficulty of bonding between coatings and plastic substrates, and the adhesion of coatings. Poor and other problems

Inactive Publication Date: 2020-10-20
上海蓝宝涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] UV coatings are usually materials containing polar functional groups or polar components, but cosmetic packaging boxes are mostly made of plastic or plastic materials. For plastics with low surface energy and low polarity, the coating is not easy to combine with the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]A vacuum electroplating UV photocuring primer, including 15.0g epoxy acrylic resin, 13.0g polyester acrylate, 12.4g polyurethane acrylic resin, 0.4g adhesion promoter, 20.0g active monomer diluent, 4.0g photoinitiated agent, 35g co-solvent. Among them, the adhesion promoter adopts vinyltrimethoxysilane, the active monomer diluent adopts trimethylolpropane triacrylate, and the photoinitiator takes 1.5g photoinitiator 184 and 2.5g photoinitiator BDK respectively, and the cosolvent Take 3.0g toluene, 1.5g butyl acetate, 25.5g ethyl formate and 5.0g ketone respectively.

[0040] The preparation method of vacuum electroplating UV photocuring primer comprises the steps:

[0041] (1) Feeding: Prepare epoxy acrylic resin, polyester acrylate, polyurethane acrylic resin, vinyl trimethoxy silicon and trimethylolpropane triacrylate according to the formula ratio.

[0042] (2) Dispersion: Disperse the prepared materials at a high speed for 60 minutes at a temperature of 60°C and a ...

Embodiment 2

[0046] A kind of vacuum electroplating UV photocuring primer, this vacuum electroplating UV photocurable primer comprises 10.0g epoxy acrylic resin, 10.0g polyester acrylate, 10.0g polyurethane acrylic resin, 0.3g adhesion promoter, 15.0g active monomer Bulk diluent, 3.0g photoinitiator, 30g co-solvent. Among them, vinyltrimethoxysilane is used as the adhesion promoter, trimethylolpropane triacrylate is used as the active monomer diluent, and 1.1g of photoinitiator 184 and 1.9g of photoinitiator BDK are used as the photoinitiator, and the cosolvent Take 2.5g toluene, 1.3g butyl acetate, 22.0g ethyl formate and 4.2g ketone respectively.

[0047] The difference between this example and Example 1 is only that the weight of the raw materials for the vacuum electroplating UV photocurable primer is different, and the preparation method of the vacuum electroplating UV photocurable primer is the same as that of Example 1.

Embodiment 3

[0049] A kind of vacuum electroplating UV photocuring primer, this vacuum electroplating UV photocurable primer comprises 20.0g epoxy acrylic resin, 15.0g polyester acrylate, 15.0g polyurethane acrylic resin, 0.5g adhesion promoter, 25.0g active monomer Bulk diluent, 5.0g photoinitiator, 40g co-solvent. Among them, vinyltrimethoxysilane is used as the adhesion promoter, trimethylolpropane triacrylate is used as the active monomer diluent, 1.9g of photoinitiator 184 and 3.1g of photoinitiator BDK are used as the photoinitiator, and the cosolvent Take 3.4g of toluene, 1.7g of butyl acetate, 30.0g of ethyl formate, and 5.7g of ketone, respectively.

[0050] The difference between this example and Example 1 is only that the weight of the raw materials for the vacuum electroplating UV photocurable primer is different, and the preparation method of the vacuum electroplating UV photocurable primer is the same as that of Example 1.

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Abstract

The invention relates to the technical field of vacuum electroplating, in particular to a vacuum electroplating UV photocuring prime coat and a preparation method thereof. The vacuum electroplating UVphoto-curing prime coat is prepared from the following components by weight percentage: 10-20 parts of epoxy acrylic resin, 10-15 parts of polyester acrylate and 10-15 parts of polyurethane acrylic resin; 0.3 to 0.5 part of an adhesion promoter; 15 to 25 parts of an active monomer diluent; 3-5 parts of a photoinitiator; and 30 to 40 parts of a cosolvent; and the adhesion promoter is vinyl trimethoxy silane. In the present application, an adhesion promoter is added into the vacuum electroplating UV photocuring prime coat; vinyl trimethoxy silane is subjected to a double bond addition reactionin the presence of a photoinitiator, and is copolymerized or grafted into a prepolymer, alkoxy and silica bonds are introduced, and the alkoxy increases the crosslinking point of the prepolymer duringcrosslinking and curing, so that the crosslinking density is improved, and the effect of improving the adhesive force of a cured coating is achieved.

Description

technical field [0001] The present application relates to the technical field of vacuum electroplating, in particular to a vacuum electroplating UV photocuring primer and a preparation method thereof. Background technique [0002] At present, in the cosmetics industry, in order to increase the diversification of product appearance and make the product more beautiful and decent, the surface of the cosmetic packaging box is often coated with paint for decoration, which improves the reflectivity and wear resistance of the product and plays a good role in protection. role. [0003] Ultraviolet (UV) vacuum plating is a physical deposition phenomenon, that is, in an ultra-low pressure container, the migration of the electric field is used to make the UV coating migrate to the surface of the coated part. ) under the action of curing to form a uniform and smooth surface layer. [0004] UV coatings are usually materials containing polar functional groups or polar components, but co...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D167/06C09D175/14C09D5/00C09D7/47C08J7/043C08L101/00
CPCC08J2300/00C08J2463/10C08J2467/06C08J2475/14C08L2205/03C09D5/002C09D163/10C09D167/06C09D175/14C09D7/47C08J7/0427C08J7/043C08L67/06C08L75/14C08L63/10
Inventor 蒋斌
Owner 上海蓝宝涂料有限公司
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