Double-component external wall heat-insulating putty having water resistance effect and preparation method thereof

Abstract

The invention discloses a double-component external wall heat-insulating putty having a water resistance effect and a preparation method thereof. The double-component external wall heat-insulating putty is characterized by comprising a component A and a component B, wherein the component A is prepared from 10.0-20.0% of water, 30.0-40.0% of emulsion, 0.1-0.2% of multifunctional aid, 0.2-0.5% of defoaming agent, 0.2-0.4% of wetting agent, 1.0-1.5% of ethylene glycol, 1.5-2.0% of film forming aid and 0.2-0.4% of thickener; the component B is prepared from 40.0-55.0% of 425 black cement, 40.0-50.0% of hollow glass bead, 2.0-3.0% of water repellent, 3.0-6.0% of wollastonite powder, 0.6-1.0% of cellulose, 6.0-8.0% of rubber powder, 0.4-0.6% of wood fiber and 0.4-0.6% of polypropylene fiber; and when in use, the component A and the component B are uniformly mixed according to a ratio of 1:1.2. The double-component external wall heat-insulating putty is suitable for surface heat insulation of a building external wall, has a heat-insulating function, and also has water resistance, fire resistance and crack resistance functions, thereby having important meanings for external wall heat insulation and protection.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to a two-component exterior wall thermal insulation putty with waterproof effect and a preparation method thereof. Background technique [0002] At present, most of the external wall thermal insulation putties popular in the market are single-component and have a certain thermal insulation effect. After being applied to the external wall, the following problems generally exist: First, the particle roughness is large, rainwater is easy to leak, and it is easy to leak on the wall. The second is that the flexibility is low, and the anti-cracking effect is not obvious; the third is that the amount of rubber powder is small, and the bonding strength is low. At present, many documents and patents have reported different functions of the exterior wall thermal insulation putty, but there has been no report of thermal insulation, waterproof and anti-cracking effects. Content...

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Problems solved by technology

[0002] At present, most of the external wall thermal insulation putties popular in the market are single-component and have a certain thermal insulation effect. After being applied to the external wall, there are generally the following problems: First, the particle roughness is large, rainwater is easy to leak, and it is easy to leak on the wall. Second, the flexibility is low, and the anti-cracking effect is not obvious; the third is that the amount of rubber powder is small, and the bonding strength is low

At present, many documents and patents have reported different functions of external wall thermal insulation putty, but there is no report of thermal insulation, waterproof and crack resistance.

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