Special paint for external thermal insulation system of outer wall

Abstract

The invention discloses a special paint for an external thermal insulation system of an outer wall, which is characterized by comprising the following steps: 1) mixing 100-300 parts of water, 0.5-2 parts of carboxyethyl cellulose, preservatives, dispersing agents, wetting agents and antifoaming agents; adding the whole mixture in an agitated reactor once; and regulating pH value to be 6-8; 2) adding 8-15 parts of propylene glycol, 150-200 parts of titanium white, 20-30 parts of calcinedkaolin, 40-60 parts of 800 wollastonite in powder, 50-80 parts of natural blanc fixe, 200-300 parts of silicone acrylic emulsion, 100-200 parts of flexible pure acrylic emulsion, coalescent, antifoaming agents and thickening agent to the reaction solution in step 1) for further reaction to obtain faint yellow or oyster white milk; and 3) adding 60-80 parts of glass microsphere powder into the faint yellow or oyster white milk, rotating at speed of 200-300rpm for 5-10min to obtain finished products. The invention greatly reduces proportion of heat transferring to inside the wall and has sound effects of crack resistance, thermal insulation and heat preservation.

Description

technical field [0001] The invention relates to an exterior wall thermal insulation coating, in particular to a special coating for an external thermal insulation system of an exterior wall. Background technique [0002] Building energy conservation is the main content of implementing the national environmental protection and energy conservation policies, and is an important part of implementing the sustainable development of the national economy. In 1995, the Ministry of Construction promulgated the "Rules for the Implementation of Urban Building Energy Conservation" and other documents, and listed the "Civil Building Energy Conservation Design Standard <Heating Residential Buildings Part>" JGJ26-95 as a mandatory standard. On the 1st, Decree No. 76 "Regulations on the Administration of Energy Conservation of Civil Buildings" was issued, and the construction of projects that do not meet energy conservation standards shall not be approved. Under the guidance of such a...

AI Technical Summary

Problems solved by technology

Because the EPS board is relatively soft and solid, it is not recommended to use heavy materials such as ceramic tiles with a large unit area weight on the outside of the external thermal insulation system. Generally, paint is used as the exterior finishing material, because most of the paint products on the market are aimed at ordinary walls. And the design has no thermal insulation effect, and it does not meet the requirements of the EPS external wall thermal insulation system very well. Therefore, the current external thermal insulation system often has cracks in the paint finish layer, which affects the final decorative effect.

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