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Organic silicon modified styrene-acrylic emulsion for ceramic tile back adhesive and preparation method thereof

A technology of styrene-acrylic emulsion and silicone, which is applied in the direction of adhesives, adhesive types, hydrocarbon copolymer adhesives, etc., can solve the problems of slow drying speed and inability to meet the brush-and-stick process, so as to improve the drying speed , the effect of high tensile bond strength

Inactive Publication Date: 2017-12-26
安德士新材料(中山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the styrene-acrylic emulsion system has not been used in tile adhesives due to its shortcomings such as slow drying speed, especially for single-component tile adhesives, which cannot meet the requirements of the brush-and-stick process

Method used

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  • Organic silicon modified styrene-acrylic emulsion for ceramic tile back adhesive and preparation method thereof

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preparation example Construction

[0056] On the other hand, the embodiment of the present invention also provides a method for preparing a silicone-modified styrene-acrylic emulsion for tile back adhesive, which may include the following steps:

[0057] Emulsion preparation: add deionized water to the emulsification tank, put the first part of the emulsifier into the emulsification tank and stir and disperse for 10-30 minutes, then slowly add unsaturated carboxylic acid and functional cross-linking monomer, and continue stirring for 10-30 minutes, Then add styrene, alkyl acrylate, silicone modified monomer, stir for 10 to 60 minutes to obtain emulsion, set aside;

[0058] Preparation of reaction tank bottom material: add deionized water to the reaction tank, raise the temperature to 60-70°C in the reaction tank, add the second part of emulsifier to obtain the reaction tank bottom material;

[0059] The water-soluble peroxide initiator is divided into two parts, which are recorded as initiator A and initiator B...

Embodiment 1

[0084] Silicone-modified styrene-acrylic emulsion for ceramic tile back glue, consisting of the following raw materials in parts by weight: 15 parts of styrene; 10 parts of ethyl acrylate; 25 parts of n-butyl acrylate; 0.6 parts of acrylic acid; 0.8 parts of acrylamide; 0.8 part of oxysilane; 1.5 parts of emulsifier, wherein the weight ratio of anionic emulsifier and nonionic emulsifier is 1:2, anionic emulsifier is allyl fatty alcohol polyoxyethylene ether ammonium sulfate, nonionic emulsifier Isomerized alcohol polyoxyethylene; 0.3 parts of potassium persulfate; 0.2 parts of tert-butyl hydroperoxide-sodium bisulfite; 56.5 parts of deionized water.

[0085] The preparation method is as follows:

[0086] 1. Emulsion preparation: Add 25% of the total weight of deionized water into the emulsification tank, put 65% of the total weight of the emulsifier into the water in the emulsification tank, stir and disperse at high speed for 30 minutes, slowly add acrylic acid and acrylamide...

Embodiment 2

[0095] Silicone-modified styrene-acrylic emulsion for tile back adhesive, which is composed of the following raw materials in parts by weight: 15 parts of styrene; 25 parts of n-butyl acrylate; 10 parts of isooctyl acrylate; 0.6 parts of acrylic acid; 0.8 parts of acrylamide; 1.2 parts of trimethoxysilane; 1.5 parts of emulsifier, wherein the weight ratio of anionic emulsifier and nonionic emulsifier is 1:2, and the anionic emulsifier is 3-allyloxy-2 hydroxy-1-propanesulfonic acid Sodium salt, non-ionic emulsifier is fatty alcohol polyoxyethylene ether; 0.3 parts of sodium persulfate; 0.2 parts of tert-butyl hydroperoxide-sodium bisulfite; 56.5 parts of deionized water; 0.1-5 parts of 1-propanol.

[0096] The preparation method is as follows:

[0097] 1. Emulsion preparation: Add 25% of the total weight of deionized water to the emulsification tank, put 65% of the total weight of the emulsifier into the water in the emulsification tank, stir and disperse at high speed for 30 ...

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Abstract

The invention discloses and provides organic silicon modified styrene-acrylic emulsion for a ceramic tile back adhesive and a preparation method thereof, and relates to the field of coating. The performance such as the drying speed, the water-resistant performance and the stretch bonding intensity of the styrene-acrylic emulsion system can be improved. The organic silicon modified styrene-acrylic emulsion can be used for the ceramic tile back adhesive, and the process requirement of pasting immediately after the brushing can be met. The organic silicon modified styrene-acrylic emulsion disclosed by the invention is prepared from the following raw materials in parts by weight: 0.5 to 3 parts of organic silicon modified monomers, 15 to 25 parts of styrene, 25 to 35 parts of alkyl acrylate, 0.6 to 1 part of unsaturated carboxylic acid, 0.6 to 2 parts of functional crosslinking monomers, 1 to 4 parts of emulsifying agents, 0.2 to 0.4 part of water-soluble peroxide initiators, 0.1 to 0.2 part of oxidization-reduction initiators, 0.1 to 5 parts of pH regulators and 45 to 60 parts of deionized water, wherein the weight part sum of the organic silicon modified monomers, the styrene, the alkyl acrylate, unsaturated carboxylic acid and the functional crosslinking monomers is 50 to 55 parts. The organic silicon modified styrene-acrylic emulsion for the ceramic tile back adhesive disclosed by the invention is applicable to the ceramic tile back adhesive.

Description

technical field [0001] The invention relates to the technical field of fine coatings, in particular to a silicone-modified styrene-acrylic emulsion for tile back glue and a preparation method thereof. Background technique [0002] In order to pursue beauty in modern decoration, the method of pasting tiles on the wall is very popular. However, the original process of pasting directly on the back of the tiles with cement mortar can easily cause problems such as hollowing after pasting and cause tiles to fall off. [0003] In response to these problems, various tile adhesives have been introduced on the market. At present, most of them are made of two-component tile adhesives. These products have good effects, but the construction process is too cumbersome and costly. high cost issues. In this regard, a small number of single-component tile adhesives have been introduced: for example, the Chinese invention patent application of 201610620038.8 discloses a water-based environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F212/08C08F220/56C08F220/06C08F230/08C08F2/26C08F2/30C08F220/58C09J133/08C09J125/14
CPCC09J143/04C08F2/26C08F2/30C08F212/08C08F220/18C08F220/1808C08F220/1804C08F220/14C08F220/06C08F220/56C08F230/08C08F220/1802C08F220/58
Inventor 杨灿陈剑伟叶炜健
Owner 安德士新材料(中山)有限公司
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