Ultraviolet curing coating for metal plating surface protection

A technology of curing coatings and metal coatings, which is applied to the device and coating of the surface coating liquid, which can solve the problems of coating water resistance, alkali resistance decline, low coating hardness, and less rigid structure, etc., to achieve improved Effect of surface hardness and water resistance, reduction of volume shrinkage stress, and improvement of durability

Active Publication Date: 2006-07-19
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of special monomers that react with metal coatings often affects the decorative effect due to the compatibility of such monomers with other components
For example, in Chinese patent ZL 03131622.0, urethane acrylate with an acid value of 10-25 mgKOH / g is used as an active oligomer, and an appropriate acidic adhesion resin is used to obtain good adhesion on sputtered aluminum films and PC plastics. Focus on UV adhesives, but the high acid value of the system will inevitably lead to a decrease in the water resistance and alkali resistance of the coating, and because the rigid structure in the system is small, the coating hardness is not high, which cannot meet the metal coating such as: vacuum aluminum coating Requirements for the protection and decoration of surfaces and other vacuum-plated metallized surfaces

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0041] formula:

[0042] Reactive oligomer: ① Epoxy acrylate (CN120 resin) 28g (accounting for 13.64%), ② polyurethane acrylate (CN965 resin) 12g (accounting for 5.85%); reactive diluent (accounting for 14.61%): ① hydroxyethyl acrylate 10g, ② tripropylene glycol diacrylate 10g, ③ trimethylol propane triacrylate 10g; photoinitiator: 2-hydroxyl-2-methyl-1-phenylacetone 5g (accounting for 2.43%); diluent (accounting for 48.71%): ①Butyl acetate 50g, ②Propylene glycol methyl ether 20g, ③Methyl isobutyl ketone 15g, ④Toluene 10g, ⑤Diacetone alcohol 5g; Composite adhesion promotion resin (accounting for 14.61%): ①A1 resin 15g, ② Cellulose resin (CAB0.05) 15g (dissolved in butyl acetate to a 30% solid solution), additives: 0.3g BYK331 (0.15%);

[0043] operate:

[0044] Take 28g CN120 resin and 12g CN965 resin according to the above formula, stir and add 10g hydroxyethyl acrylate, 10g tripropylene glycol diacrylate, 10g trimethylolpropane triacrylate, 15gA1 resin, 15gCAB-0.05 (butyl ...

example 2

[0046] Except that in the formula of Example 1, the CN120 resin is changed into CN104 resin, and the A1 resin is changed into A2 resin, the remaining components, consumption and operation in the formula are all the same as in Example 1;

example 3

[0048] Except that in the formula of Example 1, CN120 resin is changed into CN104 resin, and its consumption is changed into 33g (accounting for 16.07%), and the consumption of CN965 is changed into 12g (accounting for 5.85%), with A3 resin 10g and viscosity is 1 / 8 second Except that 15g of nitrocellulose (12% butyl acetate solution) is used as composite adhesion-promoting resin (accounting for 12.18%), all the other components, consumption and operation in the formula are all the same as in Example 1;

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PUM

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Abstract

The related UV solidifying paint for metal coated surface protection comprises: 10-30% epoxy acrylate and 5~20% urethane acrylate both as active oligomer, 10-30% composite adhesion reinforced resin as the mixture of thermalplastic acrylic resin with AA monomer modified by H3PO4 as one of synthetic monomer and fiber resin, 30~65% diluent, 5~20% active diluent, 1~10% light initiator, and 0.1~1% auxiliary agent. This invention solves the adhesion problem of UV paint on smooth metal surface very well, and contains other index up to protective and decorative requests.

Description

technical field [0001] The invention relates to an ultraviolet curing coating used for metal coating surface protection. Background technique [0002] Ultraviolet light-curing coatings, namely UV coatings, appeared in the 1950s and 1960s. They have the advantages of fast curing speed, high production efficiency, good mechanical and physical properties, low pollution, and energy saving. They are known as environmentally friendly green coatings. Over the past thirty years, it has maintained rapid development, and its application fields have expanded to all aspects of our life and production. It is a new application field that the surface of the metal coating coated on paper, plastic and other substrates is used as a protective coating. The highly cross-linked dense coating formed by UV coatings can provide good protection for metal coatings. The rapid curing process of UV coatings determines that the shrinkage stress of its coating film is very large, resulting in a decrease...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02B05D7/14
Inventor 王坚顾斌沈雪锋
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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