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Preparation method of cement-free high-strength and water-resistant type tile adhesive

A tile adhesive and water-resistant technology, applied in the field of building materials, can solve the problem of less use of hydroxyvinyl cellulose, and achieve the effects of reducing preparation cost, good mechanical properties, and excellent mechanical properties

Active Publication Date: 2017-10-24
浙江省通用砂浆研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are other varieties such as methyl cellulose ether (MC), hydroxyethylene cellulose (HEC), etc., which are currently used less

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of cement-free high-strength water-resistant tile adhesive, comprising the following steps:

[0029] (1) Mix cyclohexane and absolute ethanol and stir evenly, then add triethylamine and continue to stir for 20 minutes, then slowly add ethyl orthosilicate dropwise, continue to stir evenly, transfer the obtained mixed solution to a hydrothermal kettle, 160 React at ℃ for 20 hours, cool to room temperature after the reaction, and obtain nano-silica sol; wherein, the volume ratio of cyclohexane, absolute ethanol, triethylamine, and ethyl orthosilicate is 5:3:1:0.1;

[0030] (2) Add an aqueous solution of sodium dodecylbenzenesulfonate to the nano-silica sol prepared above, ultrasonicate for 3 hours at 500W power, concentrate under reduced pressure at 80°C for 30min, then add deionized water to the concentrated solution, and continue to 500W power Stir ultrasonically for 1 hour to obtain a uniform dispersion; wherein, the dosage ratio of sodium dodecylbe...

Embodiment 2

[0037] A preparation method of cement-free high-strength water-resistant tile adhesive, comprising the following steps:

[0038] (1) After mixing cyclohexane and absolute ethanol and stirring evenly, add triethylamine and continue to stir for 50 minutes, then slowly add ethyl orthosilicate dropwise, continue to stir evenly, transfer the obtained mixed solution to a hydrothermal kettle, 160 React at ℃ for 30 hours, cool to room temperature after the reaction, and obtain nano-silica sol; wherein, the volume ratio of cyclohexane, absolute ethanol, triethylamine, and ethyl orthosilicate is 8:3:1:0.4;

[0039] (2) Add an aqueous solution of sodium dodecylbenzenesulfonate to the nano-silica sol prepared above, ultrasonicate for 7 hours at 500W power, concentrate under reduced pressure at 80°C for 30min, then add deionized water to the concentrated solution, and continue to 500W power Stir ultrasonically for 1 hour to obtain a uniform dispersion; wherein, the ratio of sodium dodecylb...

Embodiment 3

[0046] A preparation method of cement-free high-strength water-resistant tile adhesive, comprising the following steps:

[0047] (1) Mix cyclohexane and absolute ethanol and stir evenly, then add triethylamine and continue to stir for 30 minutes, slowly add ethyl orthosilicate dropwise, continue to stir evenly, transfer the obtained mixed solution to a hydrothermal kettle, 160 React at ℃ for 23 hours, cool to room temperature after the reaction, and obtain nano-silica sol; wherein, the volume ratio of cyclohexane, absolute ethanol, triethylamine, and ethyl orthosilicate is 6:3:1:0.2;

[0048] (2) Add an aqueous solution of sodium dodecylbenzenesulfonate to the nano-silica sol prepared above, ultrasonicate for 4 hours at a power of 500W, concentrate under reduced pressure at 80°C for 30min, then add deionized water to the concentrated solution, and continue to use a power of 500W Stir ultrasonically for 1 hour to obtain a uniform dispersion; wherein, the dosage ratio of sodium ...

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Abstract

The invention discloses a preparation method of a cement-free high-strength and water-resistant type tile adhesive. The preparation method comprises steps as follows: nanosized silica sol is prepared and mixed with a sodium dodecyl benzene sulfonate water solution, the mixture is subjected to ultrasonic treatment and concentrated under reduced pressure, a concentrated solution is obtained and subjected ultrasonic dispersion with deionized water, and a uniform dispersion liquid is obtained; the dispersion liquid is added in the ethyl acrylate polymerization process, and the addition speed of an initiator solution and a monomer solution is adjusted reasonably; a nano-hectorite water solution is used as a protective colloid in the preparation of redispersible powder, accordingly, the prepared redispersible powder is good in stability and can effectively improve the adhesion capacity of the adhesive, and the adhesive is prepared after the redispersible powder is mixed with machine-made sand, mineral powder, granulated blast-furnace slag and hydroxypropyl methyl cellulose. The adhesive is good in stability, excellent in adhesion performance, good in water resistance and mechanical performance and low in preparation cost.

Description

Technical field: [0001] The invention relates to the field of building materials, in particular to a preparation method of a cement-free high-strength water-resistant tile adhesive Background technique: [0002] As an important cladding material in the construction industry, ceramic tiles can decorate and beautify buildings, protect structural components, and are easy to clean, water-resistant, hard and durable. In the past two decades, thanks to the rapid development of real estate, China's ceramic tile production ranks first in the world, and the quality is getting higher and higher. [0003] At present, domestic research on tile adhesives mainly focuses on the variety and dosage of components, the influence of test conditions, and focuses on qualitative formula research. The cementitious material is mainly ordinary Portland cement, and it is generally believed that the amount of cement is not the main factor affecting the bonding strength of tile adhesives. There are al...

Claims

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Application Information

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IPC IPC(8): C04B26/06C04B111/27
Inventor 李果蒋晓燕孙秋砚汤薇
Owner 浙江省通用砂浆研究院