Composite high-power waterproof silica gel paint and preparation method thereof

Abstract

The invention discloses a composite high-power waterproof silica gel paint. The preparation method for preparing the composite high-power waterproof silica gel paint comprises the following steps: 1. taking 32-48 parts of emulsion base material, 8-12 parts of vinyl acetate, 4-6 parts of polyvinyl alcohol, 8-12 parts of sodium methyl silicate, 1.2-1.8 parts of silica white, 1.2-1.8 parts of titanium dioxide, 15.2-22.8 parts of filler, 5.6-8.4 parts of assistant and 4.8-7.2 parts of water as raw materials; 2. adding the vinyl acetate into the emulsion base material, stirring, and dispersing to generate polymerization reaction; 3. adding the silica white, and stirring uniformly; 4. adding the titanium dioxide, filler and assistant, and stirring uniformly; and 5. adding the sodium methyl silicate, polyvinyl alcohol and water, stirring uniformly, and reacting for 9-11 minutes to obtain the composite high-power waterproof silica gel paint. The composite high-power waterproof silica gel paint has the advantages of environmental protection, no toxicity, favorable low-temperature tensile property, favorable crack resistance, long service life, no water adhesion and favorable mechanical strength, and can form a double-layer waterproof structure.

Description

technical field [0001] The invention relates to a building waterproof material and a preparation method thereof, in particular to a composite strong waterproof silica gel coating and a preparation method thereof, which is mainly used for coating on the surface of building materials such as concrete, sand ice slurry, brick tiles or masonry, To generate a waterproof layer to achieve the waterproof effect of building materials. Background technique [0002] In recent years, basement water incidents often occur due to poor waterproofing of underground structures and buildings. Leakage in buildings not only adversely affects the living environment of residents; moreover, if the underground concrete structure seeps water for a long time, on the one hand, it will cause a large loss of calcium in the concrete, and on the other hand, it will cause the steel bars in the concrete to corrode, thus destroying the underground concrete. The integrity of the structure affects the stability...

AI Technical Summary

Problems solved by technology

[0008] The above waterproof materials have different degrees of waterproof ability, but they all have serious defects such as poor low-temperature tensile resistance, poor crack resistance, and only a waterproof adhesion layer (rather than a permeable waterproof layer with good waterproof performance and difficult to fall off).

Moreover, most waterproof materials are toxic (release a large amount of toxic substances such as formaldehyde) and are not environmentally friendly; the adhesion is not strong, the adhesion is poor, delamination, cracking, and the phenomenon of mortar hollowing is prone to occur; the service life is short (large Some are less than 10 years); easy to absorb water, difficult to achieve the ideal waterproof effect; difficult to construct, complex construction procedures, such as bitumen waterproof membrane, polymer waterproof sheet

Images