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Light mixing cured coating composition and preparation method thereof

A technology of composition and light mixing, applied in the direction of epoxy resin coating, coating, etc., can solve the problems such as not easy to dry, and achieve the effect of improving physical and chemical properties and excellent system performance

Inactive Publication Date: 2010-05-19
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, free radical UV curing also has the disadvantages of being susceptible to oxygen inhibition and not easy to dry out.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Component and weight proportion of coating of the present invention are as follows:

[0041] Bisphenol A epoxy acrylate monoester 55 parts

[0042] Glycidyl acrylate 5 parts

[0043] Butyl acrylate 10 parts

[0044] 5 parts of trimethylolpropane triacrylate (TMPTA)

[0045] Tripropylene glycol diacrylate (TPGDA) 15 parts

[0046] Darocur1173 3 servings

[0047] Triaryl sulfur compound 2 parts

[0048] Titanium dioxide 5 parts

[0049] First, add glycidyl acrylate, butyl acrylate, trimethylolpropane triacrylate (TMPTA) and tripropylene glycol diacrylate (TPGDA) into the mixing tank according to the above weight ratio, stir at room temperature and high speed, and then add the metering Epoxy acrylate monoester, stirred evenly, finally added free radical photoinitiator Darocur1173 and cationic photoinitiator triaryl sulfur compound, stirred evenly, filtered and packaged as coating.

[0050] The paint can be applied by methods such as brushing, spraying, and shower co...

Embodiment 2

[0052] Component and weight proportion of coating of the present invention are as follows:

[0053] Bisphenol A epoxy acrylate monoester 50 parts

[0054] Glycidyl acrylate 5 parts

[0055] Butyl methacrylate 10 parts

[0056] 5 parts of trimethylolpropane triacrylate (TMPTA)

[0057] 10 parts of 1,6-hexanediol diacrylate (HDDA)

[0058] Tripropylene glycol diacrylate (TPGDA) 10 parts

[0059] Irgacure184 2 servings

[0060] 3 parts triethylenetetramine

[0061] Titanium dioxide 5 parts

[0062] The preparation method of coating is the same as embodiment 1.

[0063] The paint can be applied by methods such as brushing, spraying, and showering. After curing by ultraviolet radical-thermal mixing, the adhesion (cross-cut method) of the paint of the present invention is detected to be grade 1, the hardness (pendulum hardness) is 0.86, and the wear resistance is 0.86. Resistance (750g / 50r) 0.009g, dry heat resistance (90±2°C) Grade 1, good alcohol resistance and water resis...

Embodiment 3

[0065] Component and weight proportion of coating of the present invention are as follows:

[0066] Brominated bisphenol A epoxy acrylate monoester 50 parts

[0067] 5 parts of hydroxyethyl acrylate

[0068] Glycidyl methacrylate 5 parts

[0069] Pentaerythritol triacrylate (PETA) 10 parts

[0070] 1,4-butanediol diacrylate (BDDA) 5 parts

[0071] Ethoxylated (4)-bisphenol A diacrylate (EO-BPDA) 5 parts

[0072] Titanium dioxide 10 parts

[0073] 2 parts phthalocyanine blue

[0074] 2 parts silicon dioxide

[0075] Benzophenone (BP) / tertiary amine 2 parts

[0076] 2 parts diaryliodonium compound

[0077] EFKA4050 0.5 parts

[0078] EFKA3600 1 part

[0079] EFKA2040 0.5 copies

[0080] The preparation method of coating is the same as embodiment 1.

[0081] The paint can be applied by brushing, spraying, shower coating and other methods. After curing with ultraviolet radical-cation mixing, the adhesion (cross-cut method) of the paint of the present invention is detec...

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Abstract

The invention discloses a light mixing cured coating composition which comprises epoxy acrylic acid monoester, ultraviolet light-heat mixing curing agent or ultraviolet light free radical-cation mixing curing agent, pigmented filler, reactive diluent, dispersing agent, defoaming agent and flatting agent. The invention also discloses a preparation method of the light mixing cured coating composition. The coating composition of the invention has small cure shrinkage and high bonding strength, can be applied to dark systems, can be used for coating some components with complicated structures, and can be used for coating surfaces of wood products, plastics, metals and the like by the construction methods of brush coating, spray coating, curtain coating, roller coating and the like.

Description

technical field [0001] The invention belongs to the technical field of light-curing paint and its preparation process, and in particular relates to a mixed light-curing paint and its preparation process that can be widely used in the coating of wood, plastic, metal and other surfaces. Background technique [0002] Ultraviolet (UV) curing technology is a green and environmentally friendly technology that does not use solvents. It has fast curing speed (0.1-10s), less environmental pollution, low energy consumption, automatic production, and is suitable for use on heat-sensitive substrates. Etc. After entering the 1990s, environmental protection and energy conservation have become topics of common concern. Countries around the world have formulated corresponding regulations to limit the emission of volatile organic compounds (VOC) and strengthen industry management. Therefore, traditional solvent-based coatings Because of its large organic volatile components and serious envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10
Inventor 刘红波林峰徐玲
Owner SHENZHEN POLYTECHNIC
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