阅读说明：本技术 一种膏状瓷砖背胶以及其制备方法和使用方法 (Paste ceramic tile back glue and preparation method and use method thereof ) 是由 蒋中成 于 2019-11-05 设计创作，主要内容包括：一种膏状瓷砖背胶以及其制备方法和使用方法,其特征在于按照重量含量计算,包括丙烯酸乳液40±10%、乙烯基三甲氧基硅烷3±10%、增稠剂0.6±10%、PH调节剂0.15±10%、消泡剂0.2±10%、分散剂0.3±10%、防腐剂0.4±10%、羟丙基甲基纤维素0.4±10%、润湿剂0.2±10%、成膜助剂0.4±10%、除味剂0.1±10%、白石粉5±10%、滑石粉5±10%、石英粉5±10%、石英砂45±10%。本发明与已有技术相比,具有涂抹容易且涂抹效果好、不容易产生龟裂现象的优点。(The paste ceramic tile back glue is characterized by comprising, by weight, 40 +/-10% of acrylic emulsion, 3 +/-10% of vinyltrimethoxysilane, 0.6 +/-10% of a thickening agent, 0.15 +/-10% of a pH regulator, 0.2 +/-10% of a defoaming agent, 0.3 +/-10% of a dispersing agent, 0.4 +/-10% of a preservative, 0.4 +/-10% of hydroxypropyl methyl cellulose, 0.2 +/-10% of a wetting agent, 0.4 +/-10% of a film-forming aid, 0.1 +/-10% of a deodorant, 5 +/-10% of white stone powder, 5 +/-10% of talcum powder, 5 +/-10% of quartz powder and 45 +/-10% of quartz sand. Compared with the prior art, the invention has the advantages of easy coating, good coating effect and difficult cracking.)

1. The paste ceramic tile back glue is characterized by comprising, by weight, 40 +/-10% of acrylic emulsion, 3 +/-10% of vinyltrimethoxysilane, 0.6 +/-10% of a thickening agent, 0.15 +/-10% of a pH regulator, 0.2 +/-10% of a defoaming agent, 0.3 +/-10% of a dispersing agent, 0.4 +/-10% of a preservative, 0.4 +/-10% of hydroxypropyl methyl cellulose, 0.2 +/-10% of a wetting agent, 0.4 +/-10% of a film-forming auxiliary agent, 0.1 +/-10% of a deodorant, 5 +/-10% of white stone powder, 5 +/-10% of talcum powder, 5 +/-10% of quartz powder and 45 +/-10% of quartz sand.

2. The paste tile backsize of claim 1, wherein the acrylic emulsion is a multiple copolymer emulsion comprising styrene, methyl methacrylate, vinyl acetate, methacrylic acid, isooctyl acrylate, silicone monomer.

3. The paste tile back glue of claim 2, wherein the multi-component copolymer emulsion is a core-shell emulsion, the glass transition temperature of the core layer is 10-40 ℃, the glass transition temperature of the shell layer is-5-20 ℃, and the glass transition temperature of the emulsion is-20-0 ℃.

4. The paste tile back glue of claim 1, 2 or 3, wherein the acrylic emulsion comprises the following components in percentage by mass: calculated by weight percentage, the acrylic copolymer is 30 +/-10%, the silicon-acrylic copolymer is 40 +/-10%, and the styrene-acrylic copolymer is 30 +/-10%.

5. The paste tile backsize according to claim 1, 2 or 3, wherein the thickener is a copolymer of at least 2 monomers of acrylic acid, cellulose ether, polyurethane.

6. The paste tile backsize of claim 4, wherein the thickener is a copolymer of at least 2 monomers selected from the group consisting of acrylic acid, cellulose ethers, and polyurethanes.

7. A method of preparing a paste tile backsize according to claim 1, 2, 3, 4, 5 or 6, wherein the following are calculated by weight:

A. uniformly mixing 5 +/-10% of white stone powder, 5 +/-10% of talcum powder, 5 +/-10% of quartz powder and 45 +/-10% of quartz sand in a stirrer to prepare dry powder for later use;

B. putting 40 +/-10% of acrylic emulsion into a reaction kettle, fully stirring, heating to 75-85 ℃, slowly adding 3 +/-10% of vinyltrimethoxysilane, and fully reacting the acrylic emulsion and the vinyltrimethoxysilane to prepare emulsion; then 0.6 plus or minus 10 percent of thickening agent, 0.15 plus or minus 10 percent of PH regulator, 0.2 plus or minus 10 percent of defoaming agent, 0.3 plus or minus 10 percent of dispersant, 0.4 plus or minus 10 percent of preservative, 0.4 plus or minus 10 percent of hydroxypropyl methylcellulose, 0.2 plus or minus 10 percent of wetting agent, 0.4 plus or minus 10 percent of film-forming additive and 0.1 plus or minus 10 percent of deodorant are added and stirred fully and evenly;

C. and D, putting the dry powder prepared in the step A into the emulsion prepared in the step B, and fully stirring until the mixture is fine, uniform and granular, so as to obtain a finished product of the ceramic tile back glue.

8. The method of using the paste tile backsize as claimed in claim 1, 2, 3, 4, 5 or 6, wherein the tile backsize is first uniformly spread and scraped to the back of the tile; and then the prepared cement mortar is coated and scraped to the back of the ceramic tile, so that the ceramic tile can be paved on the wall surface or the ground.

Technical Field

The invention relates to the technical field of tile glue, in particular to paste tile back glue and a preparation method and a using method thereof.

Background

Ceramic tiles are widely used as decorative building materials, ranging from ceramic tiles, glazed tiles, full-body tiles, ceramic tiles, vitrified tiles, archaized tiles and stone-like tiles, to current thin plates, microcrystalline stones and full-polished glazes, the technology of the ceramic tile family is continuously updated, the quality is continuously improved, and the design and color are continuously innovated. As a mate of ceramic tiles, namely a ceramic tile pasting material, the ceramic tile pasting material is correspondingly and continuously upgraded and updated from lime to cement and cement mortar and then to the existing ceramic tile glue and ceramic tile back glue so as to meet the performance requirements of ceramic tile pasting.

The tile glue has obvious defects, the tile glue belongs to a semi-finished product and can be used only by adding water on site, the water cement ratio is not controllable, the fluctuation of the bonding strength is large, meanwhile, the unit price per square meter of the tile glue is high, and common customers cannot bear the tile glue, so that the phenomenon of blending cement and sand on site occurs, and the effect of the tile glue is greatly reduced. The production of the ceramic tile back glue just solves the problem that the ceramic tile back glue cannot solve. The tile back glue on the market at present is usually emulsion type back glue. The principle of the emulsion type tile back adhesive is that the tile is paved by physical sticking effect, and the tile and cement mortar are stuck as an interface by the physical viscosity of the pressure-sensitive adhesive (acrylic acid), and the emulsion type tile back adhesive belongs to organic flexible adhesives. Although the emulsion type ceramic tile back glue does not need to be prepared on site during construction, the construction is convenient, but the water resistance, the heat resistance and the bonding strength of the emulsion type ceramic tile back glue are lower than those of the ceramic tile back glue; therefore, a new tile back glue with excellent performances such as construction convenience, water resistance, heat resistance, bonding strength, aging resistance, water seepage resistance and the like is needed to replace the defects of the existing emulsion type tile back glue.

As disclosed in patent CN201811024678.8, the existing tile back glue comprises acrylic emulsion, vinyl trimethoxy silane, thickening agent, polycarboxylic acid water reducing agent, pH regulator, defoaming agent, dispersing agent, preservative, antistatic agent, micro silicon powder, polyethylene oxide, zeolite powder, spodumene powder and sodium gluconate, the adopted principle is a chemical bonding principle, the bonding force of the chemical bonding adhesive not only comes from the mechanical anchoring force formed by the capillary pores of the base surface penetrated by cement mortar, but also has the firm pulling force formed by the capillary pores of the base surface penetrated by the long molecular chains of polymer materials, the polymer high molecular material is grafted with Si bonds, one end of inorganic silicon is chemically connected with the cement material, the other end of the inorganic silicon can also chemically react with the inorganic material in the tile material, cement mortar and the tile material are bonded into a whole, and in addition, Si permeates into the capillary holes of the base surface through Brownian motion to form firm pulling force. Therefore, the tile back glue has strong bonding force and enough flexibility to resist damage caused by climate change and slight vibration of high-rise buildings, so that the tile can be permanently and firmly bonded. The current situation that the ceramic tile adhesive on the market is poor in strength due to changes of temperature and external environment is improved. In addition, the acrylic emulsion has good mechanical properties, small average particle size of emulsion particles, good balance relation between creep resistance and heat sealability, good wet adhesion and fast curing speed. Although the technology solves the problems of the traditional tile adhesive, the tile adhesive needs to be coated with the tile back adhesive firstly and then with cement mortar before being paved, and in the process, if the coating proficiency is poor and the coating time is long, the coating is not uniform and easy to crack, so that the tile back adhesive cannot fully play the role, and the paving and bonding effects are influenced.

Disclosure of Invention

The invention aims to provide a paste ceramic tile back glue which is easy to smear, has good smearing effect and is not easy to crack, and a preparation method and a using method thereof.

The paste ceramic tile gum is realized by the following components, by weight, 40 +/-10% of acrylic emulsion, 3 +/-10% of vinyltrimethoxysilane, 0.6 +/-10% of thickening agent, 0.15 +/-10% of PH regulator, 0.2 +/-10% of defoaming agent, 0.3 +/-10% of dispersing agent, 0.4 +/-10% of preservative, 0.4 +/-10% of hydroxypropyl methyl cellulose, 0.2 +/-10% of wetting agent, 0.4 +/-10% of film-forming auxiliary agent, 0.1 +/-10% of deodorant, 5 +/-10% of white stone powder, 5 +/-10% of talcum powder, 5 +/-10% of quartz powder and 45 +/-10% of quartz sand. (+ -10% means that on the basis of the stated value the error ranges from 10% decrease to 10% increase in the value, e.g.: 40 + -10% means that the error ranges from 36 to 44)

The preparation method of the paste ceramic tile back glue is realized by the following steps of:

A. uniformly mixing 5 +/-10% of white stone powder, 5 +/-10% of talcum powder, 5 +/-10% of quartz powder and 45 +/-10% of quartz sand in a stirrer to prepare dry powder for later use;

B. putting 40 +/-10% of acrylic emulsion into a reaction kettle, fully stirring, heating to 75-85 ℃, slowly adding 3 +/-10% of vinyltrimethoxysilane, and fully reacting the acrylic emulsion and the vinyltrimethoxysilane to prepare emulsion; then 0.6 plus or minus 10 percent of thickening agent, 0.15 plus or minus 10 percent of PH regulator, 0.2 plus or minus 10 percent of defoaming agent, 0.3 plus or minus 10 percent of dispersant, 0.4 plus or minus 10 percent of preservative, 0.4 plus or minus 10 percent of hydroxypropyl methylcellulose, 0.2 plus or minus 10 percent of wetting agent, 0.4 plus or minus 10 percent of film-forming additive and 0.1 plus or minus 10 percent of deodorant are added and stirred fully and evenly;

C. and D, putting the dry powder prepared in the step A into the emulsion prepared in the step B, and fully stirring until the mixture is fine, uniform and granular, so as to obtain a finished product of the ceramic tile back glue.

The application method of the paste ceramic tile back glue comprises the following steps of firstly, uniformly coating the ceramic tile back glue on the back of a ceramic tile; and then the prepared cement mortar is coated and scraped to the back of the ceramic tile, so that the ceramic tile can be paved on the wall surface or the ground.

The back glue of the pasty ceramic tile is easier to coat and disperse on the sticking surface of the ceramic tile by adopting the film forming additive, so that the back glue of the pasty ceramic tile is easier to coat, the coating effect and effectiveness and the coating rapidity are ensured, the hydroxypropyl methyl cellulose is adopted, the water retention property of the hydroxypropyl methyl cellulose ensures that the slurry cannot crack due to too rapid drying after coating, the effective combination of the hydroxypropyl methyl cellulose and the cement mortar is ensured, the strength after hardening is enhanced, the coating performance is also improved and the operable time is prolonged by adopting the hydroxypropyl methyl cellulose as a retarder, and the coating effect and the effectiveness are also ensured.

Compared with the prior art, the invention has the advantages of easy coating, good coating effect and difficult cracking.

Detailed Description

The present invention will now be described in further detail with reference to examples:

the paste ceramic tile gum is realized by the following components, by weight, 40 +/-10% of acrylic emulsion, 3 +/-10% of vinyltrimethoxysilane, 0.6 +/-10% of thickening agent, 0.15 +/-10% of PH regulator, 0.2 +/-10% of defoaming agent, 0.3 +/-10% of dispersing agent, 0.4 +/-10% of preservative, 0.4 +/-10% of hydroxypropyl methyl cellulose, 0.2 +/-10% of wetting agent, 0.4 +/-10% of film-forming auxiliary agent, 0.1 +/-10% of deodorant, 5 +/-10% of white stone powder, 5 +/-10% of talcum powder, 5 +/-10% of quartz powder and 45 +/-10% of quartz sand.

The acrylic emulsion is a multi-component copolymer emulsion and comprises styrene, methyl methacrylate, vinyl acetate, methacrylic acid, isooctyl acrylate and an organic silicon monomer.

The multi-component copolymerization emulsion is an emulsion with a core-shell structure, the glass transition temperature of a core layer is 10-40 ℃, the glass transition temperature of a shell layer is-5 to-20 ℃, and the glass transition temperature of the emulsion is-20 to 0 ℃.

Further, the acrylic emulsion comprises the following components in percentage by mass: calculated by weight percentage, the acrylic copolymer is 30 +/-10%, the silicon-acrylic copolymer is 40 +/-10%, and the styrene-acrylic copolymer is 30 +/-10%.

The thickening agent is a copolymer of at least 2 monomers of acrylic acid, cellulose ether and polyurethane.

The preparation method of the paste ceramic tile back glue is realized by the following steps of:

A. uniformly mixing 5 +/-10% of white stone powder, 5 +/-10% of talcum powder, 5 +/-10% of quartz powder and 45 +/-10% of quartz sand in a stirrer to prepare dry powder for later use;

B. putting 40 +/-10% of acrylic emulsion into a reaction kettle, fully stirring, heating to 75-85 ℃, slowly adding 3 +/-10% of vinyltrimethoxysilane, and fully reacting the acrylic emulsion and the vinyltrimethoxysilane to prepare emulsion; then 0.6 plus or minus 10 percent of thickening agent, 0.15 plus or minus 10 percent of PH regulator, 0.2 plus or minus 10 percent of defoaming agent, 0.3 plus or minus 10 percent of dispersant, 0.4 plus or minus 10 percent of preservative, 0.4 plus or minus 10 percent of hydroxypropyl methylcellulose, 0.2 plus or minus 10 percent of wetting agent, 0.4 plus or minus 10 percent of film-forming additive and 0.1 plus or minus 10 percent of deodorant are added and stirred fully and evenly;

C. and D, putting the dry powder prepared in the step A into the emulsion prepared in the step B, and fully stirring until the mixture is fine, uniform and granular, so as to obtain a finished product of the ceramic tile back glue.

The application method of the paste ceramic tile back glue comprises the following steps of uniformly coating the ceramic tile back glue on the back of a ceramic tile, wherein the using amount of the ceramic tile back glue used for each square of the ceramic tile is 0.55 kg; then according to the cement: cement mortar is prepared according to the proportion of 4:6, the prepared cement mortar is coated on the back of the ceramic tile, and the slurry is not cracked due to too fast drying after being coated, so that a paving person can lay the ceramic tile on the wall surface or the ground easily, and the paving regularity and the paving quality of the paving person are improved.