Nano composite aqueous metal luster exterior wall reflection and heat insulation coating and preparation method thereof

Abstract

The invention provides a kind of nano-composite water-based metallic luster external wall reflective heat-insulating paint, and raw materials include the following components by weight: 50-60 parts of acrylic acid emulsion, 2-5 parts of glass hollow microspheres, 8-15 parts of diatomite, 5-10 parts of nano-titanium dioxide, 6-10 parts of ceramic hollow microspheres, 3-6 parts of nano-far-infrared ceramic powder, 5-10 parts of metallic luster pigment, 5-10 parts of mica powder, 1-5 parts of nano-silica, 5-10 parts of titanium dioxide, 2-5 parts of orientation agent, 0.1-0.3 parts of pH regulator, 0.5-1.0 parts of dispersant, 0.2-0.5 parts of defoamer, 1.0-2.5 parts of film-forming aid, thickener 0.5-0.8 parts of antifreeze, 1-3 parts of antifreeze, 0.1-0.3 parts of rheological agent, 0.1-0.3 parts of antiseptic and bactericide, 20-50 parts of deionized water. The invention also provides a preparation method thereof, and the coating has the advantages of good coating temperature change resistance, emission heat insulation, environmental protection, aesthetics, outdoor weather resistance, low thermal conductivity and the like.

Description

technical field [0001] The invention relates to a reflective and heat-insulating paint for exterior walls, in particular to a nano-composite water-based metal luster reflective and heat-insulating paint for exterior walls and a preparation method thereof. Background technique [0002] According to the heat insulation mechanism, heat insulation coatings can be divided into three types: barrier type, reflection type and radiation type. Among them, the barrier type heat insulation coating is a thick traditional coating, and its heat insulation mechanism is to resist heat transfer, and the technology is relatively mature; Thermal coatings emit the heat of sunlight absorbed by buildings into the air at a certain wavelength in the form of radiation to achieve heat insulation and cooling; the heat insulation mechanism of reflective thermal insulation coatings is to reflect sunlight. [0003] Architectural reflective and heat-insulating coatings are new functional architectural coat...

AI Technical Summary

Problems solved by technology

Most of the existing coatings are single-function coatings, and there is no sales of a qualified, high-safety, reflective and heat-insulating coating that has both reflective and heat-insulating effects and metallic luster exterior walls.