A kind of thermal insulation exterior wall putty powder and preparation method thereof

A technology for thermal insulation of external walls and putty powder, which is applied in the direction of filling slurry, etc., can solve the problems of poor thermal insulation effect of external wall putty powder, etc., and achieve the effects of reducing drying and cracking, good flow performance and strong cohesion.

Active Publication Date: 2021-05-04
安徽众雁涂料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of thermal insulation exterior wall putty powder and its preparation method in view of the poor thermal insulation effect of the current exterior wall putty powder

Method used

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preparation example Construction

[0027] The preparation method of the reaction raw material is: take sodium tetraborate according to the mass ratio of 1~3:0.2~0.5:20~30, add sodium bicarbonate and N-methylpyrrolidone, stir and mix for 20~30min to obtain the mixture, and take the mixture according to the mass ratio 20~40: 1~5 Add dopamine hydrochloride, stir and mix at 20~30°C for 20~40min to get the reaction raw material.

[0028]The preparation method of the anti-cracking additive is: take polyacrylamide and add N-methylpyrrolidone according to the mass ratio of 1~4:10~30, stir and mix at 20~25°C for 18~24h, and then add 50~60% of polyacrylamide mass activator, stirred and mixed at 30~40°C for 1~3h to obtain a stirred mixture, took the stirred mixture and added the reaction raw materials according to the mass ratio of 10~15:2~7, passed through nitrogen protection, stirred and mixed at 20~25°C for 12~ After 18 hours, adjust the pH to 2~3 to obtain the stirring mixture a. Take the stirring mixture a and add et...

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Abstract

The invention discloses a thermal insulation exterior wall putty powder and a preparation method thereof, belonging to the technical field of building materials. The invention utilizes the better bonding performance of dopamine to carry out grafting, and maintains the internal structure of the putty powder after hardening, so that the putty powder forms a hydration gelling material with strong cohesive force and good fluidity. Using capric acid, lauric acid, etc. to enter the heat conduction channel can absorb or release heat to achieve heat balance for heat preservation, which improves the heat preservation effect, fills the pores of the putty powder outer wall, and improves the compactness. The polymethylvinylsiloxane elastomer is used to form cross-links with the introduced vinyl, which reduces shrinkage cracking and increases the mechanical properties of the putty powder. It has a faster transmission speed for light, and the light energy can quickly pass through the putty powder for photothermal transformation, further improving the light effect and heat storage and heat preservation performance of the outer wall. The invention solves the problem that the current external wall putty powder has poor thermal insulation effect.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a heat-insulating exterior wall putty powder and a preparation method thereof. Background technique [0002] Putty powder is one of the most commonly used building decoration materials, and its main components are talcum powder and glue. Putty, to go a step further, is a kind of base material for leveling the wall, which lays a good foundation for future decoration (painting and wallpaper). Putty is divided into two kinds: putty inside wall and putty on exterior wall. External wall putty can resist wind and sun, so it has good gelation, high strength and low environmental index. The comprehensive index of putty in the inner wall is good, and it is hygienic and environmentally friendly. Therefore, the inner wall is not for external use and the outer wall is not for internal use. Putties are usually based on gypsum or cement, so rough surfaces are easier to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 陈合华路芸钱丽琴
Owner 安徽众雁涂料有限公司
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