High-strength high-temperature resistant anti-cracking elastic waterproof coating and preparation method thereof

Abstract

The invention provides a high-strength high-temperature resistant anti-cracking elastic waterproof coating. The coating is composed of a heat-resisting anti-cracking elastic film-forming liquid material and a cement mixed powder material, and is characterized in that the mass ratio of the heat-resisting anti-cracking elastic film-forming liquid material to the cement mixed powder material is 3:(1.8-2.2); the film-forming liquid material is prepared from a pure acrylic elastic emulsion, a fluorocarbon surfactant, an organosilicone modified epoxy resin, alcohol ester-12, a defoaming agent, a preservative and a camphor essential oil according to a proportion; the cement mixed powder material is prepared by mixing low-grade cement, quartz sand, a talcum powder, rutile-type titanium dioxide, a modified filler, an F10 powder water reducing agent, a P803 powder defoaming agent, a sweet osmanthus powder and tea polyphenol. The coating has the characteristics of high strength, high temperature resistance, cracking resistance, elasticity and water proof.

Description

Technical field: [0001] The invention relates to the field of waterproof coatings, in particular to a high-strength, high-strength, high-temperature-resistant, crack-resistant, elastic waterproof coating and a preparation method thereof. Background technique: [0002] Traditional building waterproof materials have low technical content and poor comprehensive performance indicators, especially in some construction environments under external high temperature conditions, which cannot meet people's requirements for modern engineering quality. When ordinary water-based waterproof coatings are applied under high temperature conditions, due to the inconsistent volatilization of water from the top and bottom of the coating film, the internal stress of the paint film will be unbalanced, and cracking will easily occur, which will easily cause the waterproof layer to fail or cause trouble in repeated repairs. Linoleum or membrane waterproof materials require hot-melt asphalt due to th...

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Problems solved by technology

[0002] Traditional building waterproof materials have low technical content and poor comprehensive performance indicators, especially in some construction environments under external high temperature conditions, which cannot meet people's requirements for modern engineering quality.

When ordinary water-based waterproof coatings are applied under high temperature conditions, the internal stress of the coating film is unbalanced due to the inconsistent volatilization of water from the top and bottom of the coating film, which is prone to cracking, easily causing the failure of the waterproof layer or troublesome repairs and constructions

Linoleum or membrane waterproof materials require hot-melt asphalt due to their complicated construction process, which not only affects the health of operators, but also pollutes the environment. The product is not resistant to aging and maintenance is inconvenient. If it is hot-melt and baked under high temperature conditions, it is easy to cause fire Hidden danger

At present, polyurethane waterproof coatings are more commonly used, which have excellent waterproof performance, but because polyurethane coatings contain organic solvents, which endanger people's health and do not conform to the relevant national environmental protection industry policies, construction under high temperature conditions, the solvent volatilization speed in polyurethane waterproof coatings It will also speed up. If the air flow around the construction is not smooth, after the high-speed volatilization solvent reaches a certain concentration, it will not only easily cause casualties, but may also cause the danger of explosion.

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