Nano-rare earth heat-insulated transparent coating and preparation method thereof

Abstract

The invention discloses a nano-rare earth heat-insulated transparent coating and a preparation method thereof. The preparation method comprises the following steps of: firstly, forcibly stirring a nano-rare earth material lanthanum hexaboride in pure water for 10 minutes, then performing ultrasonic dispersion on the mixture for 30 minutes, and adding the mixture into a sand grind to perform grinding and dispersion for 24 hours to obtain a pure water dispersion liquid of the nano-lanthanum hexaboride; secondly, adding an appropriate amount of the dispersion liquid into a water-based acrylic resin or water-based polyurethane resin, composite alcohol and an additive; and finally, forcibly stirring and dispersing the mixture for 30 minutes to obtain the nano-rare earth heat-insulated transparent coating. The nano-rare earth heat-insulated transparent coating can reduce the indoor temperature by 7 to 10 DEG C when used on glass, and the light transmittance of the nano-rare earth heat-insulated transparent coating is up to over 80 percent.

Description

technical field [0001] The invention relates to a nano rare earth heat-insulating transparent coating and a preparation method thereof, belonging to the field of new materials. The invention can be used on the surface of transparent materials such as building glass curtain wall, window glass, vehicle glass and the like, and has excellent heat insulation performance. Background technique [0002] In recent years, my country's economy has developed rapidly, and resource and energy issues have become increasingly prominent, so energy conservation and environmental protection are particularly important at present. Especially in the urban renewal in recent years, it has highlighted the problems of high energy consumption, high pollution, and high carbon emissions caused by a large number of existing buildings due to defects in maintenance structures. According to statistics, 30% to 50% of building energy consumption is consumed on maintenance structures, and the main way of diss...

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Problems solved by technology

[0004] The existing transparent heat insulation technology mostly uses powders such as nano-ATO or ITO as dispersion materials, but due to a series of reasons such as high dispersion concentration required, difficult dispersion, and unsatisfactory coating effect, its heat insulation performance is not ideal.