Aqueous self-cleaning transparent heat-insulated nano-dope capable of fully shielding infrared ray and ultraviolet ray

Abstract

The invention relates to an aqueous self-cleaning transparent heat-insulated nano-dope capable of fully shielding infrared ray and ultraviolet ray and a preparation method. The dope comprises the following components in percentage by weight: 30%-70% of film-forming resin, 5%-30% of nano-ATO dispersion, 1%-10% of nano-LaB6 dispersion, 1%-15% of nano-WO3 dispersion, 5%-15% of co-solvent, 2%-10% of film-forming assistant, 0.5%-5.0% of assistant and 5%-25% of deionized water. The preparation method comprises the following steps of: dropping the nano-ATO dispersion, the nano-LaB6 dispersion and the nano-WO3 dispersion into aqueous fluorocarbon resin while stirring, stirring for 30-40 min, orderly adding antifoaming agent, wetting agent, the film-forming assistant, thickening agent and accelerating agent, stirring the solution to obtain the self-cleaning transparent thermal-insulation nano-dope. The dope is applied to the surfaces of cement, an automotive glass and a building glass, has self-cleaning function, can fully shield the infrared ray and ultraviolet ray and has obvious thermal-insulation performance.

Description

technical field [0001] The invention relates to functional nano-materials, in particular to a full-shielding solar infrared and ultraviolet full-band, using water-based fluorocarbon resin as a film-forming material, composed of ATO / WO 3 / LaB 6 The invention relates to a transparent heat-insulating paint made of nanocomposite materials and a preparation method thereof, in particular to a transparent heat-insulating paint which can be coated on various glass, plastic, metal and cement surfaces. Background technique [0002] China has nearly 40 billion square meters of buildings, 95% of which are non-energy-efficient buildings. Compared with developed countries with similar climate conditions, my country’s energy consumption per square meter for heating and cooling is about three times that of developed countries, but the comfort level is far inferior to that of people. Therefore, the new national building energy-saving standard stipulates that the energy-saving of new building...

AI Technical Summary

Problems solved by technology

[0005] Existing transparent heat insulation technologies mostly use ITO and ATO as shielding materials, but these two materials can only shield long-wave near-infrared, and have no obvious barrier to short-wave near-infrared and ultraviolet rays, so the energy-saving effect is limited

[0006] One-component waterborne polyurethane is commonly used in the market as a film-forming resin, and then nano-oxide dispersion is added to prepare glass heat-insulating coatings. However, the preparation process of this coating is too long, and nano-oxides are difficult to disperse in aqueous solution, which is easy to agglomerate and Settlement; the water resistance and aging resistance of the coating are not ideal, and the coating life is short; due to the limitations of water-based polyurethane resin, the problem of coating film contamination is difficult to solve, which brings great trouble to the cleaning of glass