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A kind of dual curing acrylic resin and its preparation method and application

An acrylic resin, dual-curing technology, used in the field of coatings, can solve the problems of incomplete curing of the color addition system, difficult to meet the requirements of wear resistance, boiling resistance and poor RCA, etc. Effects of resin properties

Active Publication Date: 2022-07-08
湖南松井先进表面处理与功能涂层研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Silver powder paint is widely favored by people for its rich colors, excellent color flop effect, and elegant decorative effect. There are certain defects in the preparation route of water-based silver powder paint in related technologies: 1) Water-based self-drying system: there are problems It is a long curing time and poor wear resistance. RCA can only achieve dozens of times, which is difficult to meet the requirements of the 3C field for wear resistance.
2) Water-based PU system: the problem is that the curing time is long and the wear resistance is poor, which is similar to the self-drying system
3) Water-based UV system: the problem is that the coloring system is not completely cured, and the water-resistant and RCA are poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1 of the present invention is: a preparation method of dual-curing acrylic resin, comprising the following steps:

[0062] S1. Add 450 g of butyl acetate to a 5000 mL four-necked flask with a stirring device, turn on stirring and heat up to 110°C.

[0063] S2. Add 130 g of isobornyl methacrylate, 100 g of acrylic acid, 60 g of methyl methacrylate, 150 g of styrene, 60 g of hydroxyethyl acrylate and 4.4 g of initiator di-tert-butyl peroxide into a glass beaker; stir evenly Then added to the constant pressure dropping funnel.

[0064] S3. After the four-necked flask is heated to 110°C, slowly drop the material in the constant pressure dropping funnel, and the dropwise addition time is 4h.

[0065] S4. After the dropwise addition of the material in the constant pressure dropping funnel is completed, keep the temperature at 110°C for 4 hours.

[0066] S5. After the heat preservation is over, the four-necked flask is cooled to 100° C., 10 g of triphenylphosphine...

Embodiment 2

[0070] The second embodiment of the present invention is: a water-based silver powder paint, comprising A component and B component:

[0071] Wherein, the formula of above-mentioned water-based silver paint A component is as follows:

[0072] 63.4 parts of dual-cured acrylic resins prepared in Example 1;

[0073] 6 parts of water-based silver powder;

[0074] Dumb powder (Tosoh 1011) 0.6 servings;

[0075] Initiator (IGM1173 and IGM184) 2 copies (IGM1173 and IGM184 each);

[0076] Thickener (Digo 3030) 1 part;

[0077] 0.5 part of dispersant (Digo 750);

[0078] Wetting agent (Digo 270) 0.5 parts;

[0079] 6 parts of propylene glycol butyl ether;

[0080] 20 parts of water;

[0081] 100 copies in total.

[0082] Component B of the above water-based silver powder paint is a water-based isocyanate curing agent (Covestro Bayhydur 304).

[0083] The weight ratio of the A component to the B component is 100:10.

[0084] After component A and component B are dispersed for ...

Embodiment 3

[0086] Embodiment 3 of the present invention is: a kind of water-based silver powder paint, including A component and B component:

[0087] Wherein, the formula of above-mentioned water-based silver paint A component is as follows:

[0088] 63.4 parts of dual-cured acrylic resins obtained in Example 1;

[0089] 6 parts of water-based silver powder;

[0090] Dumb powder (Tosoh 1011) 0.6 servings;

[0091] Initiator (IGM1173 and IGM184) 2 copies (IGM1173 and IGM184 each);

[0092] Thickener (BYK299) 1 part;

[0093] 0.5 part of dispersant (BYK164);

[0094] Wetting agent (Digo 245) 0.5 part;

[0095] 6 parts of propylene glycol butyl ether;

[0096] 20 parts of water;

[0097] A total of 100 copies.

[0098] Component B of the above water-based silver powder paint is a water-based isocyanate curing agent (Covestro Bayhydur 304).

[0099] The weight ratio of the A component to the B component is 100:9.

[0100] After component A and component B are dispersed for 10 minu...

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Abstract

The invention discloses a dual-curing acrylic resin and a preparation method and application thereof. The dual-curing acrylic resin comprises the following raw materials: isobornyl methacrylate, acrylic acid, methyl methacrylate, styrene, hydroxyethyl acrylate, initiator Agent I, phosphine catalyst, glycidyl methacrylate, neutralizer and dipentaerythritol pentahexaacrylate. The invention forms a dual-curing acrylic resin under the action of a phosphine catalyst through the combination of various raw materials; the double bond and hydroxyl content in the resin are relatively high, and the hardness of the paint film formed after curing by ultraviolet light is good; Further improved film performance.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a dual-curing acrylic resin and a preparation method and application thereof. Background technique [0002] 3C coatings mainly refer to the general term for surface finishing coatings for three major categories of electronic products: computer, communication and consumer electronics. Due to the characteristics of 3C electronic products, the appearance and functional requirements of the coating are more stringent and harsher than those of traditional electrical products and other electronic products. First, the inherent "high-end" elements of 3C products make their appearance requirements particularly strict, such as the smoothness, symmetry, and color stability of the paint film; The characteristics of frequent touch and multi-environment use have also contributed to the extremely high requirements of 3C electronic products for the function of the paint film of 3C coatings, such as high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/06C08F220/14C08F220/20C09D175/04
CPCC08F212/08C09D175/04C08F220/1811C08F220/06C08F220/14C08F220/20
Inventor 徐祗正凌云剑王卫国缪培凯杨波伍松符饶生
Owner 湖南松井先进表面处理与功能涂层研究院有限公司
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