Environment-friendly tert-carbonic acid organic silicone-acrylic modified copolymer emulsion for ceramic tile back adhesive

Abstract

The invention discloses an environment-friendly tert-carbonic acid organic silicone acrylic modified copolymer emulsion for a ceramic tile back adhesive. The copolymer emulsion is prepared from the following raw materials in parts by weight: 10 to 20 parts of styrene, 20 to 40 parts of acrylate, 5 to 20 parts of vinyl versatate, 2 to 10 parts of a functional monomer, 2 to 5 parts of an emulsifier,0.2 to 0.4 part of a water-based initiator, 0.1 to 0.3 part of a redox agent, 0.1 to 0.5 part of a preservative, and 40 to 60 parts of deionized water. According to the invention, the environment-friendly tert-carbonic acid organosilicone-acrylic modified copolymer emulsion for the ceramic tile back adhesive is prepared by polymerizing acrylate, tert-carbonic acid, styrene and organosilicon macromolecules; raw materials are environmentally friendly and meet the environmental protection standard requirements, and experimental research shows that the copolymer emulsion is high in bonding strength, not prone to hollowing and brick falling, convenient to construct and good in water resistance, freeze thawing resistance, aging resistance and the like.

Description

technical field [0001] The invention relates to an environment-friendly ceramic tile back glue emulsion, in particular to a tertiary carbonic acid organosilicon-acrylic modified copolymer emulsion for the environment-friendly tile back glue. Background technique [0002] The tile adhesive used in the market is a single-component or multi-component mixture composed of organic or inorganic cementitious materials, mineral aggregates, and organic admixtures. It is a polymer-modified cement-based tile adhesive. , ceramic tile adhesive belongs to cement-based modified mortar, and is also a hydraulic cementitious material. Its cohesive force depends on the slurry penetrating into the gap of the bonding substrate, gradually forming needle-like crystals and generating friction, while porcelain tiles are dense. There are few holes, it is difficult to achieve mechanical nailing, the material of vitrified tiles is dense, and the water absorption rate is as low as 1%, so it is difficult ...

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Problems solved by technology

[0002] The tile adhesive used in the market is a single-component or multi-component mixture composed of organic or inorganic cementitious materials, mineral aggregates, and organic admixtures. It is a polymer-modified cement-based tile adhesive. , ceramic tile adhesive belongs to cement-based modified mortar, and is also a hydraulic cementitious material. Its cohesive force depends on the slurry penetrating into the gap of the bonding substrate, gradually forming needle-like crystals and generating friction, while porcelain tiles are dense. There are few holes, it is difficult to achieve mechanical nailing, the material of vitrified tiles is dense, and the water absorption rate is as low as 1%, so it is difficult to achieve effective bonding with ordinary tile adhesives, and it is easy to form hollowing

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