Aqueous heat-insulating flame-retardant coating nanomaterial

Abstract

The invention provides an aqueous heat-insulating flame-retardant coating nanomaterial. The aqueous heat-insulating flame-retardant coating nanomaterial comprises the following ingredients in parts byweight: 70-80 parts of silicone acrylic resin, 4-8 parts of modified nano silicon carbide, 1-3 parts of silicon dioxide aerogel, 12-18 parts of hollow glass beads, 3-6 parts of Mg-Al hydrotalcite, 1-3 parts of wetting dispersant, 1-3 parts of diatomite, 3-6 parts of potassium titanate whiskers, 0.2-1 part of antifoamer and 30-40 parts of water, wherein the modified nano silicon carbide is mainlyprepared from nano silicon carbide, bentonite and a silane coupler. The coating material has excellent high-temperature resisting and heat-insulating properties and is good in flame retardance and long in service life.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a nanometer water-based heat-insulating and flame-retardant coating. Background technique [0002] With the rapid development of science and technology and social production in the world, people are increasingly aware that environmental and energy issues have become urgent problems to be solved in the 21st century, and energy issues play an important role in the economic development of countries around the world. At present, the national government not only needs to improve the energy-saving design standards of buildings under construction and to be built in the future, but also carry out energy-saving improvements on the original buildings that have already been built. Therefore, the topic of energy saving and heat insulation has become an important topic in today's social science circles. [0003] The method of painting thermal insulation coatings on building wall...

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Problems solved by technology

[0003] The method of painting thermal insulation coatings on building walls to ensure that buildings have energy-saving performance has been more and more widely used. The existing building thermal insulation coatings mainly use ordinary Portland cement and fly ash. , fiber and other materials are used as heat insulation fillers, the heat insulation, heat resistance and adhesion to the wall of the coating cannot meet the requirements of the society and need to be improved and improved

The patent application number is CN200410048047.1, which reduces the thermal conductivity by adding hollow ceramics to achieve heat insulation effect, but the coating uses the solvent xylene, which is harmful to the environment

However, due to the fact that the nanoparticles themselves are prone to agglomeration and poor dispersion in the matrix resin, the thermal insulation performance of the coating obtained is not ideal; in order to obtain the ideal thermal insulation effect, it is necessary to add a lot of nanoparticles to obtain it. Excessive addition of nanomaterials will affect other properties of the coating, and there is a bottleneck in the increase of thermal insulation performance

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