Reflective heat-insulating stone-like coating and preparation process thereof

Abstract

The invention discloses a reflective heat-insulating stone-like coating and a preparation process thereof, relates to the technical field of building material coatings, and solves the problem of pooroverall application effect due to the fact that a coating film of the stone-like coating cannot effectively reflect visible light and near infrared light in solar light back into the atmosphere. The reflective heat-insulating stone-like coating comprises the following components in parts by weight: 12-14 parts of pure acrylic emulsion, 1.2-1.5 parts of 4040 dispersant, 0.6-0.8 part of a film forming additive, 0.3-0.7 part of ethylene glycol, 0.12-0.15 part of cellulose, 0.1-0.125 part of a pH regulator, 0.075-0.08 part of a preservative, 0.025-0.05 part of a defoaming agent and 70-75 parts ofdyed sand, wherein the dyed sand comprises the following components in percentage by weight: 75-80% of white quartz sand, 16-20% of polyurethane aqueous color paint for the dyed sand and 4-5% of a curing agent. A coating film formed by the reflective heat-insulating stone-like coating has a good reflection effect on THE visible light and near infrared light in solar light, can maintain good stability in the use process, and has a good application effect.

Description

technical field [0001] The invention relates to the technical field of building material coatings, more specifically, it relates to a reflective heat-insulating real stone paint and a preparation process thereof. Background technique [0002] Real stone paint is a kind of paint with a decorative effect similar to marble and granite. It is mainly formulated with natural stone powder of various colors. It is applied to the imitation stone effect of building exterior walls. It has the texture of natural stone, so it is also called liquid stone. [0003] In the Chinese invention patent application document with the publication number CN105348962A, a natural stone paint for exterior walls is disclosed, which is composed of the following raw materials in parts by weight: 20-45 parts of soap-free polymerized pure acrylic emulsion, 15-45 parts of natural colored sand 25 parts, 5-18 parts of organic zinc complex inhibitors, 6-12 parts of silicone defoamers, 1-5 parts of quaternary am...

AI Technical Summary

Problems solved by technology

[0005] In view of the problem in the prior art that the coating film of real stone paint cannot effectively reflect the visible light and near-infrared light in sunlight back into the atmosphere, resulting in poor overall application effect, the first purpose of the present invention is to provide a By adding water-based polyurethane paint with reflective heat-insulating titanium dioxide to dye white quartz sand at high temperature to solve the above technical problems, the coating film formed after use is sensitive to visible light and near sunlight in sunlight. Infrared light has a good reflection effect, and the overall applicability is good

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