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Ceramic tile back glue and preparation method

A back glue and ceramic tile technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of poor product fluidity, penetration into the house or wall, tile falling off, etc., and achieve water resistance and temperature resistance Enhanced performance, enhanced adhesion, and increased strength

Inactive Publication Date: 2021-04-27
清远楼邦建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the tile back glue on the market is composed of general-purpose emulsion configurations such as styrene-acrylic emulsion, polyvinyl acetate emulsion, and alcohol-acrylic emulsion. There are several problems in the following aspects: First, because it uses a single emulsion, there are insufficient performance, such as bonding strength. No more than 0.5MPa, bonding tiles larger than 600mm×600mm will cause the tiles to fall off due to drying and shrinkage of the material; second, even if non-single emulsion or synthetic emulsion is used, the fluidity and weather resistance of the adhesive after compounding with inorganic silicate (high temperature expansion and low temperature shrinkage); third, poor water resistance, the moisture on the surface of the tiles easily penetrates through the surface of the tiles and the back glue of the tiles, and penetrates into the house or the wall; fourth, it cannot be compounded with other treatment agents to apply Ceramic tiles of different sizes and water absorption
Invention patent CN109517541A discloses a method of using nano-airgel to prepare tile adhesive, but it uses basic emulsion, which will cause many problems: first, due to the simple mixing of airgel and existing emulsion, After the airgel is mixed with the inorganic silicate, the dispersion of the airgel is poor, the hydrophobicity of some areas is strong, and the hydrophobicity of some areas is weak, which leads to the expansion and contraction of the moisture-enriched area when the tiles with high water content are pasted. It falls off obviously; second, the fluidity of the product is too poor, and increasing the ratio of the emulsion will cause the emulsion to form agglomerates, which will agglomerate after a long time; third, it will release high concentrations of toxic and harmful gases after use

Method used

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  • Ceramic tile back glue and preparation method
  • Ceramic tile back glue and preparation method
  • Ceramic tile back glue and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]Preparation of nano-synthetic emulsion: (1) Add 12 parts of water into the pre-emulsification tank, slowly add 0.07 parts of emulsifier NP-40 and 1.2 parts of emulsifier OP-10 in turn, and disperse at high speed for 40 minutes until there are no lumps in the pre-emulsification tank The emulsifier is stopped; (2) Start high-speed dispersion again, and at the same time slowly add 7 parts of styrene, 24 parts of butyl acrylate, 13 parts of isooctyl acrylate, 3 parts of vinyl neodecanoate VV-10 to the pre-emulsification tank, 1 part of hydroxyethyl acrylate and 1 part of methacrylic acid, when the above pre-emulsion does not separate in a standing state, stop the dispersion; if there are a lot of bubbles, you need to add 0.1 part of defoamer and stir until the foam disappears; (3) Add 30 parts of water, 0.05 part of sodium bicarbonate and 2 parts of silicon dioxide successively in the reactor, heat up to 80°C, and disperse at high temperature for 30 minutes; In the reaction ...

Embodiment 2

[0044] Take 50 parts of nano-synthetic emulsion prepared by the method in Example 1, add 25 parts of polyurethane emulsion, stir at high speed for 40 minutes, and keep the temperature at 60°C; cool down to 35°C, and drop 0.4 parts of chemical water-based adhesion promoter to In the reaction kettle, when a liquid film is formed on the surface, stop stirring; add 0.1 part of thickener, 5 parts of water-based rosin emulsion and 0.5 part of preservative in sequence, and stop after stirring for 5 minutes.

[0045] It is applied to the back of vitrified tiles by roller coating process, dried at room temperature for 24 hours, pasted with cement mortar, and maintained for 27 days under standard conditions. Test results.

Embodiment 3

[0047] Take 80 parts of nano-synthetic emulsion prepared by the method in Example 1, add 25 parts of polyurethane emulsion, stir at high speed for 40 minutes, and keep the temperature at 60°C; cool down to 35°C, and drop 0.4 parts of chemical water-based adhesion promoter to In the reaction kettle, when a liquid film is formed on the surface, stop stirring; add 0.1 part of thickener, 5 parts of water-based rosin emulsion and 0.5 part of preservative in sequence, and stop after stirring for 5 minutes.

[0048] It is applied to the back of vitrified tiles by roller coating process, dried at room temperature for 24 hours, pasted with cement mortar, and maintained for 27 days under standard conditions. Test results.

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Abstract

The invention discloses a ceramic tile back adhesive and a preparation method. The ceramic tile back adhesive is composed of the following components in parts by weight: 50-80 parts of a nano synthetic emulsion, 25 parts of a polyurethane emulsion, 5 parts of an aqueous rosin emulsion and 0.4 part of a chemical aqueous adhesion promoter. The invention further discloses a preparation method of the ceramic tile back adhesive by using the nano synthetic emulsion. The preparation method comprises the following steps: adding 50-80 parts by weight of nano synthetic emulsion into a reaction kettle, adding 25 parts by weight of polyurethane emulsion, stirring at a high speed for 40 minutes, keeping the temperature at 60 DEG C, and cooling to 35 DEG C. The synthesized product has the characteristics that the bonding strength exceeds 0.5 MPa, the weather resistance is strong, and the water resistance is good.

Description

technical field [0001] The invention relates to a back glue and a preparation method thereof, more specifically, the invention relates to a tile back glue and a preparation method thereof. Background technique [0002] Tile adhesive is a composite product of high molecular polymer emulsion material and inorganic silicate. Tile adhesive can be used in combination with a variety of adhesive materials to form a tile adhesive system and improve the adhesion between tile and base. It has good performance on standard concrete slabs and glazed tiles, and its safety performance has been greatly improved. It is specially used for the back treatment of wet-laid vitrified tiles, which can effectively improve the bonding strength between vitrified tiles and bonding materials, and solve the common problems of hollowing and falling off in wet-laid vitrified tiles. It is also suitable for the back treatment of stone materials with low water absorption, dense texture and smooth surface and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J175/04C09J11/04C08F220/18C08F212/08C08F218/10C08F220/20C08F220/06
CPCC09J133/066C09J11/04C08F220/1804
Inventor 陈强罗荣苏常春
Owner 清远楼邦建材科技有限公司