Ultraviolet-light curable aqueous heat-insulating nano composite coating and preparation method thereof

A nano-composite, ultraviolet light technology, applied in polyester coatings, polyether coatings, epoxy resin coatings, etc., can solve the problems of increased process and cost, visible light impermeability, human and environmental hazards, etc., to reduce the absorption rate , Fast curing speed, energy saving effect

Active Publication Date: 2010-08-04
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent Publication No. CN101029206A reports a nano-composite water-based heat-insulating exterior wall paint and its preparation method, which uses rutile titanium dioxide. Although the covering ability is improved, the paint made by this method is opaque because visible light cannot pass through. , which limits its application
A heat-insulating coating and its preparation method reported in Chinese Patent Publication No. CN1583895A uses a solvent-based film-forming resin, wherein the xylene solvent used will cause harm to the human body and the environment
Chinese Patent Publication No. CN101108931A reports a water-based elast

Method used

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  • Ultraviolet-light curable aqueous heat-insulating nano composite coating and preparation method thereof
  • Ultraviolet-light curable aqueous heat-insulating nano composite coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The formula of the nanometer tin oxide antimony composite coating by mass parts in the present embodiment is:

[0020] Polyurethane acrylate aqueous emulsion 85 parts

[0021] Nano tin antimony oxide paste 10 parts

[0022] Irgacure 2959 3.0 servings

[0023] Ammonia water 0.2 parts

[0024] Defoamer (BYK-088) 0.5 parts

[0025] Dispersant (SN-5040) 0.5 parts

[0026] Leveling agent (BYK-302) 0.8 parts

[0027] According to the above formula, 0.5 parts of modified polysiloxane defoamer (BYK-088), 0.5 parts of polyvalent carboxylate polymer dispersant (SN-5040), 0.8 parts of silicone resin type leveling agent (BYK-302), 3.0 parts of photoinitiator Irgacure 2959 are added to the aqueous emulsion of polyurethane acrylate, stirred at 500 rpm for 30 minutes with a high-speed mechanical emulsifier, and 0.2 parts of pH regulator ammonia water is added dropwise to the above emulsion to adjust its The pH value is the same as the pH value of the nano-antimony tin oxide slur...

Embodiment 2

[0030] The formula of the nanometer tin oxide antimony composite coating by mass parts in the present embodiment is:

[0031] Polyurethane acrylate aqueous emulsion 65 parts

[0032] Nano antimony tin oxide paste 20 parts

[0033] Irgacure 2959 3.0 servings

[0034] 2-Amino-2-methyl-1-propanol 1.0 parts

[0035] Defoamer (BYK-020) 0.2 parts

[0036] Dispersant (Deqian 912) 0.3 parts

[0037] Leveling agent (BYK-361) 0.5 parts

[0038] According to the formula, 0.2 parts of modified polysiloxane defoamer (BYK-020), 0.3 parts of polyacrylate amine salt dispersant (912), 0.5 parts of polyacrylate type leveling agent (BYK-361), Add 3.0 parts of photoinitiator Irgacure 2959 to polyurethane acrylate aqueous emulsion, disperse at a frequency of 40kHz for 15 minutes with an RS-120E ultrasonic cleaner, and add 0.2 parts of pH regulator 2-amino-2-methyl-1-propane Add alcohol dropwise to the above emulsion to adjust its pH to be the same as the pH of the nano-antimony tin oxide slu...

Embodiment 3

[0041] The formula of the nanometer tin oxide antimony composite coating by mass parts in the present embodiment is:

[0042] Epoxy acrylate aqueous emulsion 75 parts

[0043] Nano antimony tin oxide paste 25 parts

[0044]KIPEM 3.0 copies

[0045] Ammonia 0.6 parts

[0046] Defoamer (DCA-330) 0.3 parts

[0047] Dispersant (SN-5040) 0.3 parts

[0048] Leveling agent (BYK-306) 0.8 parts

[0049] According to the formula, 0.3 parts of polyacrylate defoamer (DCA-330), 0.3 parts of polyvalent carboxylate polymer dispersant (SN-5040), 0.8 parts of silicone resin type leveling agent (BYK-306 ), 3.0 parts of photoinitiator KIPEM were added to the epoxy acrylate water-based emulsion, and a high-speed mechanical emulsifier was used to stir at 1500rpm for 20 minutes, and 0.6 parts of ammonia water was added dropwise to the above-mentioned emulsion to adjust its pH value to that of the nano The pH value of the tin antimony oxide slurry is the same, then increase the speed to 2500rp...

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Abstract

The invention discloses an ultraviolet-light curable aqueous heat-insulating nano composite coating and a preparation method thereof. The preparation method is characterized by comprising the following steps: adding 0.1 to 0.5 part of antifoaming agent, 0.2 to 0.5 part of dispersant, 0.2 to 2.0 parts of flatting agent and 0.5 to 3.0 parts of photo-initiator by mass into 60 to 85 parts of film forming emulsion, adding pH adjustor into the emulsion to reach the same pH value as tin oxide containing nano slurry to be added, then dripping 10 to 35 parts of the tin oxide containing nano slurry into the emulsion, and dispersing the mixture uniformly to obtain the ultraviolet-light curable aqueous energy-saving heat-insulating nano composite coating. The preparation method of the invention has the advantages of environment friendliness, energy conservation and the like; the prepared nano composite coating has high curing speed and good mechanical property; and the coating is coated on a basematerial during use, and an ultraviolet-light cured film has good transparency and heat insulation performance and can be used as a heat-insulating protective coat for automobile or building glass.

Description

technical field [0001] The invention belongs to the technical field of energy-saving and heat-insulating coatings, in particular to water-based energy-saving and heat-insulating nano-composite coatings curable by ultraviolet light and a preparation method thereof. Background technique [0002] The hot sun shines on buildings or vehicles in summer, and the heat transmitted through the wall glass or car body glass causes the temperature in the room or the car to rise. The cooling and cooling equipment such as air conditioners, fans, and air conditioners used for this The energy is enormous. In order to reduce the transmittance of wall glass or car body glass to solar energy and achieve the purpose of energy saving, thermal insulation coatings have emerged as the times require. [0003] Chinese Patent Publication No. CN101029206A reports a nano-composite water-based heat-insulating exterior wall paint and its preparation method, which uses rutile titanium dioxide. Although the...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D175/14C09D167/06C09D171/00C09D133/00C09D7/12C09D5/00
Inventor 胡源王鑫宋磊邢伟义
Owner UNIV OF SCI & TECH OF CHINA
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