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Photo-thermal dual-curing plastic coating

A dual-curing, plastic coating technology, used in polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve problems such as difficult curing, poor film performance, and easy shading of light, reducing production. Cost, good performance, and the effect of simplifying the spraying process

Pending Publication Date: 2018-12-04
惠州市嘉淇涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The single-spray plastic coating needs to have the function of primer and surface UV-curable varnish, and there are the following difficulties: the UV-curable system is easy to block the light due to the addition of dark pigments, and at the same time, the thickening of the single-coat paint film leads to The prepolymer is difficult to accept ultraviolet light, which makes it difficult to cure completely, resulting in poor performance of the paint film, and the paint film effect is even worse when it is applied to the spraying of special-shaped components because there are many shadows

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Components and proportioning amount (parts by weight) are as follows:

[0024] A component: EBECRYL8210 (cytec) 26, isobornyl acrylate 2, 1,6-hexanediol diacrylate 4, ethoxylated trimethylolpropane triacrylate 2, dipentaerythritol pentaacrylate 4, CN2252 ( Sartomer) 3, CN104 (Sartomer) 2, EBECRYL5129 (Cytec) 2, CN9010 (Sartomer) 6, organic pigment 3, additive 3, 2,4,6-trimethylbenzoyl di Phenylphosphine oxide 2, solvent 41.

[0025] B component: toluene diisocyanate 50, solvent 50.

[0026] Production Method:

[0027] a. Configuration of component A: Accurately weigh each component according to the proportion of the formula and add them to the mixing vessel in turn. Stir fully for 2 hours in a dust-free and light-proof environment. After passing through a 100-mesh filter, the filtrate can be packaged and stored.

[0028] b. Configuration of component B: Accurately weigh each component according to the proportion of the formula and add them to the mixing vessel in tur...

Embodiment 2

[0031] Components and proportioning amount (parts by weight) are as follows:

[0032] Component A: EBECRYL8210 (Cytec) 20, SB404 (Sartomer) 6, Tripropylene Glycol Diacrylate 4, Diethylene Glycol Methyl Diacrylate 4, Trimethylolpropane Triacrylate 2, Dipentaerythritol Hexa Acrylate 4, EBECRYL402 (Cytec) 1, EBECRYL4858 (Cytec) 3, CN9276 (Sartomer) 4, EBECRYL5129 (Cytec) 5, Organic Pigment 5, Additive 4, 1-Hydroxy-Cyclohexyl-Benzene Methyl ketone 3, solvent 35.

[0033] B component: toluene diisocyanate 55, solvent 45.

[0034] The manufacturing method and construction process of this embodiment are the same as those of Example 1, and the performance indicators are shown in Table 1.

Embodiment 3

[0036] Components and proportioning amount (parts by weight) are as follows:

[0037] Component A: lauric acid acrylate 2, neopentyl glycol diacrylate 6, trimethylolpropane triacrylate 2, dipentaerythritol pentaacrylate 4, EBECRYL4858 (Cytec) 3, CN118 (Sartomer) 2 , EBECRYL205 (Cytec) 4, CN2250 (Sartomer) 4, EBECRYL8210 (Cytec) 18, SB405 (Sartomer) 10, organic pigment 5, additive 3, 2-hydroxy-2-methyl-1- Phenyl-1-propanone 3, solvent 34.

[0038] B component: toluene diisocyanate 60, solvent 40.

[0039] The manufacturing method and construction process of this embodiment are the same as those of Example 1, and the performance indicators are shown in Table 1.

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PUM

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Abstract

The invention discloses a photo-thermal dual-curing plastic coating. The plastic coating comprises a component A and a component B, wherein the component A comprises the following components in partsby weight: 20-30 parts of dual-curing resin, 4-10 parts of a basic monomer, 2-6 parts of a multifunctional monomer, 2-6 parts of a prepolymer, 6-10 parts of a multifunctional prepolymer, 0.5-5 parts of an organic pigment, 1-4 parts of an auxiliary agent, 1-3 parts of a photoinitiator and 30-45 parts of a solvent, and the component B comprises the following components in parts by weight: 50-70 parts of a curing agent and 30-50 parts of a solvent. An ultraviolet curing system is formed by the prepolymer and the photoinitiator, a thermal curing system is formed by a plurality of similar monomersand the curing agent, so that the defects of a pure ultraviolet curing coating can be overcome in the photo-thermal dual-curing plastic coating prepared by the combination of the two systems. Particularly, during the spraying process of a dark coating, a thickened coating film and a special-shaped component, the coating can be cured completely, and various performances of the formed coating film are good. Meanwhile, a two-layer spraying mode of a bottom coating and ultraviolet curing gloss oil is replaced, the spraying process is simplified, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of plastic coatings, in particular to a light-heat dual curing plastic coating. Background technique [0002] The competition in the plastic spraying industry is intensifying day by day. Simplifying the process and reducing costs are the magic weapons for the survival of enterprises. In the past, the spraying of color paint required two processes, including the two-layer spraying process of primer and UV-curable varnish. First, a primer layer that can adhere to the plastic surface was sprayed on the plastic surface, and then UV light was sprayed on the surface of the primer layer. Cures the varnish to form a decorative and protective coating. In order to simplify the paint spraying process, the development of existing paints tends to be one-time spraying, which is to complete the paint protection of objects, even if the paint has the functions of primer and surface paint at the same time. The single-spray ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C09D167/06C09D7/63
CPCC09D7/63C09D163/10C09D167/06C09D175/14
Inventor 胡燕捷宋国麟赵少铃胡德勇胡德平
Owner 惠州市嘉淇涂料有限公司
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