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

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...

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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 elastic thermal insulation coating and its preparation method. The heat insulation effect is achieved by adding closed hollow glass microspheres to reduce the thermal conductivity, but the use of closed hollow glass microspheres will cause the coating The elasticity becomes poor, and also limits the thickness of the coating film

A kind of high-temperature far-infrared coating reported by Chinese Patent Publication No. CN1552779A has the defect of insufficient adhesion, and the pretreatment in its preparation method needs to be sprayed with PA80 glue or water glass and carboxymethyl cellulose aqueous emulsion, which increases the process and cost

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