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Dual-curing acrylic resin as well as preparation method and application thereof

An acrylic resin, dual-curing technology, used in the field of coatings, can solve the problems of difficult to meet the requirements of wear resistance, poor water resistance and RCA, and long curing time.

Active Publication Date: 2021-06-08
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 color, excellent color flop effect, and elegant decorative effect. In the related art, there are certain defects in the preparation route of water-based silver powder paint: 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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  • Dual-curing acrylic resin as well as preparation method and application thereof
  • Dual-curing acrylic resin as well as preparation method and application thereof
  • Dual-curing acrylic resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Embodiment 1 of the present invention is: a kind of preparation method of dual curing acrylic resin, comprises the following steps:

[0070] S1. Add 450 g of butyl acetate to a 5000 mL four-neck flask equipped with a stirring device, start stirring and raise the temperature to 110°C.

[0071] S2. Add 130g of isobornyl methacrylate, 100g of acrylic acid, 60g of methyl methacrylate, 150g of styrene, 60g of hydroxyethyl acrylate and 4.4g of initiator di-tert-butyl peroxide into a glass beaker; stir well Then add to the constant pressure dropping funnel.

[0072] S3. After the temperature of the four-neck flask is raised to 110° C., slowly add the materials in the constant pressure dropping funnel dropwise for 4 hours.

[0073] S4. After the addition of the materials in the constant pressure dropping funnel is completed, keep the temperature at 110° C. for 4 hours.

[0074] S5. After the heat preservation is completed, cool the four-neck flask to 100° C., add 10 g of trip...

Embodiment 2

[0081] Embodiment two of the present invention is: a kind of waterborne silver powder paint, comprises A component and B component:

[0082] Wherein, the formula of above-mentioned waterborne silver powder paint A component is as follows:

[0083] 63.4 parts of double curing acrylic resins that embodiment one makes;

[0084] 6 parts of water-based silver powder;

[0085] Dumb powder (Tosoh 1011) 0.6 part;

[0086] Initiator (IGM1173 and IGM184) 2 parts (IGM1173 and IGM184 each part);

[0087] Thickener (Digo 3030) 1 part;

[0088] Dispersant (Digo 750) 0.5 part;

[0089] Wetting agent (Digo 270) 0.5 parts;

[0090] 6 parts of propylene glycol butyl ether;

[0091] 20 parts of water;

[0092] A total of 100 copies.

[0093] Component B of the above water-based silver powder paint is a water-based isocyanate curing agent (Bayhydur 304 from Covestro).

[0094] The weight ratio of component A to component B is 100:10.

[0095] After component A + component B are disperse...

Embodiment 3

[0097] Embodiment three of the present invention is: a kind of waterborne silver powder paint, comprises A component and B component:

[0098] Wherein, the formula of above-mentioned waterborne silver powder paint A component is as follows:

[0099] 63.4 parts of double curing acrylic resins that embodiment one makes;

[0100] 6 parts of water-based silver powder;

[0101] Dumb powder (Tosoh 1011) 0.6 part;

[0102] Initiator (IGM1173 and IGM184) 2 parts (IGM1173 and IGM184 each part);

[0103] Thickener (BYK299) 1 part;

[0104] Dispersant (BYK164) 0.5 parts;

[0105] Wetting agent (Digo 245) 0.5 part;

[0106] 6 parts of propylene glycol butyl ether;

[0107] 20 parts of water;

[0108] A total of 100 copies.

[0109] Component B of the above water-based silver powder paint is a water-based isocyanate curing agent (Bayhydur 304 from Covestro).

[0110] The weight ratio of component A to component B is 100:9.

[0111] After component A + component B are dispersed fo...

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Abstract

The invention discloses dual-curing acrylic resin as well as a preparation method and application thereof. The dual-curing acrylic resin is prepared from the following raw materials: isobornyl methacrylate, acrylic acid, methyl methacrylate, styrene, hydroxyethyl acrylate, an initiator I, a phosphine catalyst, glycidyl methacrylate, a neutralizer and dipentaerythritol pentaacrylate. According to the invention, the dual-curing acrylic resin is formed under the action of the phosphine catalyst through matching of the raw materials; the content of double bonds and hydroxyl groups in the resin is high, and a paint film formed after ultraviolet curing is good in hardness; and the performance of the paint film is further improved through thermocuring.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(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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