Heat-reflecting exterior wall putty

Abstract

The invention discloses heat-reflecting exterior wall putty, and relates to the technical field of a building exterior wall insulation material. The heat-reflecting exterior wall putty comprises the following components by weight: 150-300kg of 42.5# cement, 600-780kg of coarse whiting of 300-600 meshes, 15-30kg of polymer additive, 2-5kg of MC (methylcellulose), 1-2kg of wood fiber and 60-120kg of high-performance hollow ceramic microbeads. The preparation method comprises the following steps that the components are evenly mixed according to the mass ratio, belong to homogeneous dry powder materials, and can be used on the scene after water is added to agitate according to the ratio; other materials cannot be added; the metering accuracy of dry powder materials and water is 2%; the agitation time is not smaller than 3 minutes; the heat-reflecting exterior wall putty can be used after being prepared into uniform paste. A heat-reflecting substance is added to the traditional exterior wall putty, so that most of ultraviolet ray in sunlight can be reflected. Thus, corrosion to an insulation board caused by the ultraviolet ray is reduced, and the target of prolonging the service life of exterior wall heat insulation is achieved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials for building exterior walls, in particular to a heat-reflecting exterior wall putty. Background technique [0002] Most of the existing external wall insulation materials are EPS, XPS, polyurethane board, phenolic insulation board, etc. Most of the organic insulation boards will be severely corroded and aged under the sunlight (ultraviolet rays). Therefore, due to the ultraviolet radiation, the external wall insulation The core material of the insulation board, the service life of the insulation board is greatly reduced. In many places, the outer wall insulation has been used for less than ten years, and the phenomenon of shedding and damage due to the aging of the insulation board has appeared. Contents of the invention [0003] The purpose of the present invention is to provide a heat-reflective exterior wall putty, which adds heat-reflective substances (high-performance h...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing exterior wall insulation materials are EPS, XPS, polyurethane board, phenolic insulation board, etc. Most of the organic insulation boards will be severely corroded and aged under sunlight (ultraviolet) irradiation, therefore, due to ultraviolet radiation, the exterior wall insulation The core material of the insulation board, the service life of the insulation board is greatly reduced. In many places, the external wall insulation has been used for less than ten years, and the phenomenon of shedding and damage due to the aging of the insulation board has appeared.