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Modified hydroxyethyl methyl cellulose for enhanced ceramic tile adhesive and preparation method and application thereof

A technology of hydroxyethyl methyl and cellulose, applied in the direction of adhesive additives, polymer adhesive additives, etc., can solve the problems of small production capacity, low pressure, low labor intensity, etc., to improve the ability to maintain moisture, Effect of improving tensile bond strength and enhancing tensile bond strength

Active Publication Date: 2020-10-09
SHANDONG YITENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The internal pressure of the liquid-phase method equipment is small, the requirements for the pressure-bearing capacity of the equipment are low, and the risk is small. After the cellulose is soaked in the lye, it will be fully swollen and alkalized evenly. Well, products with relatively uniform substitution and viscosity can be obtained, and the variety is easy to replace, but the reactor should not be too large (generally within 15m 3 Below), the production capacity is relatively small, and if the output is to be increased, multiple reactors must be added, and the reaction process requires a large amount of organic solvent as a carrier, and the reaction time is also long (generally more than 10 hours), which increases solvent distillation recovery and time cost
The gas-phase method has compact equipment, high single-batch yield, and the reaction is carried out in a horizontal autoclave. The time (generally 5-8 hours) is shorter than that of the liquid-phase method, and does not require a complicated solvent recovery system. After the reaction is completed, the excess methyl chloride And the by-product dimethyl ether enters the recovery system in the form of gas, and is recycled and reused separately. The labor cost is low, the labor intensity is low, and the production cost is lower than that of the liquid phase method, but the investment in equipment and automatic control is large, and the technical content is high. Expensive

Method used

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  • Modified hydroxyethyl methyl cellulose for enhanced ceramic tile adhesive and preparation method and application thereof
  • Modified hydroxyethyl methyl cellulose for enhanced ceramic tile adhesive and preparation method and application thereof
  • Modified hydroxyethyl methyl cellulose for enhanced ceramic tile adhesive and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Modified hydroxyethyl methylcellulose for reinforced tile adhesive, made from the following quality raw materials: 74kg of hydroxyethylmethylcellulose, hydroxypropyl starch (19.5% hydroxypropoxy content, 5% type B LVT viscosity 1950cp, ash content 7.5%, produced by Shandong Yiteng New Material Co., Ltd.) 20kg, anionic polyacrylamide 3kg and guar gum 3kg;

[0052] Among them, hydroxyethyl methylcellulose is made of cotton cellulose powder (average degree of polymerization is 2638, particle diameter is 0.230mm, bulk density is 175g / L) 100kg, granular sodium hydroxide (particle diameter is 0.7mm) 27kg, hydrogen Prepared from 63kg of sodium oxide aqueous solution (50% mass concentration), 74kg of methyl chloride and 13kg of ethylene oxide.

[0053] The preparation method specifically comprises the following steps:

[0054] (1) Take each raw material by the above-mentioned quality;

[0055] (2) Add cotton cellulose powder, granular sodium hydroxide and aqueous sodium hydro...

Embodiment 2

[0058] Modified hydroxyethyl methyl cellulose for reinforced tile adhesive, made from raw materials of the following quality: hydroxyethyl methyl cellulose 66kg, hydroxypropyl starch (hydroxypropoxy content is 19.5%, 5% type B LVT viscosity 1950cp, ash content 7.5%, produced by Shandong Yiteng New Material Co., Ltd.) 30kg, nonionic polyacrylamide 2kg and gum arabic 2kg;

[0059] Among them, hydroxyethyl methylcellulose consists of 100kg of wood cellulose powder (average degree of polymerization is 2873, particle size is 0.230mm, bulk density is 175g / L), granular sodium hydroxide (particle size is 0.7mm) 35kg, hydrogen Prepared from 52kg of sodium oxide aqueous solution (50% mass concentration), 81kg of methyl chloride and 12kg of ethylene oxide.

[0060] The preparation method specifically comprises the following steps:

[0061] (1) Take each raw material by the above-mentioned quality;

[0062] (2) Add wood cellulose powder, granular sodium hydroxide and aqueous sodium hydr...

Embodiment 3

[0065] Modified hydroxyethyl methyl cellulose for reinforced tile adhesive, made from raw materials of the following quality: 71 kg of hydroxyethyl methyl cellulose, hydroxypropyl starch (19.5% hydroxypropoxy content, 5% type B LVT viscosity 1950cp, ash content 7.5%, produced by Shandong Yiteng New Material Co., Ltd.) 25kg, polyvinyl alcohol 2kg and carrageenan 2kg;

[0066] Wherein, hydroxyethyl methylcellulose is made of bamboo cellulose powder (average degree of polymerization is 1050, particle diameter is 0.18mm, bulk density is 150g / L) 20kg, wood cellulose powder (average degree of polymerization is 2520, particle diameter is 0.18mm, bulk density 150g / L) 60kg, cotton cellulose powder (average degree of polymerization 5010, particle size 0.18mm, bulk density 150g / L) 20kg, granular potassium hydroxide (particle size 0.3mm) 66kg 100kg of potassium hydroxide aqueous solution (mass concentration is 40%), 168kg of methyl chloride and 53kg of ethylene oxide.

[0067] The prepar...

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Abstract

The invention discloses modified hydroxyethyl methyl cellulose for an enhanced ceramic tile adhesive. The modified hydroxyethyl methyl cellulose is prepared from the following raw materials in percentage by mass: 54%-94% of hydroxyethyl methyl cellulose, 5%-40% of starch ether, 0.5%-3% of a dispersing agent and 0.5%-3% of a rheological agent, wherein the hydroxyethyl methyl cellulose is prepared from cellulose powder, caustic soda granules, caustic soda liquid, chloromethane and ethylene oxide. The preparation method comprises the following steps: (1) weighing the raw materials, (2) mixing cellulose powder, caustic soda particles, liquid caustic soda, chloromethane and ethylene oxide, carrying out etherification reaction, and then sequentially carrying out neutralization, washing, centrifugation, drying and crushing to obtain hydroxyethyl methyl cellulose, and (3) mixing and stirring hydroxyethyl methyl cellulose, starch ether, a dispersing agent and a rheological agent to obtain the adhesive. The obtained product is stable in quality, has the function of improving the tensile bonding strength of the ceramic tile adhesive, is applied to modern ceramic tiles with large sizes and large masses, and can remarkably improve the use safety of the ceramic tiles.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a modified hydroxyethyl methyl cellulose for reinforced tile adhesive and a preparation method thereof. Background technique [0002] As a decorative material, ceramic tiles have a vast market, but with the continuous improvement of the specialization of the ceramic tile market, more and more consumers are pursuing the seamless effect of wall decoration, making large-scale ceramic tiles more and more popular. At the same time, large-area The increasing popularity of residential buildings has also promoted the popularity of large-size tiles. As the size and quality of ceramic tiles are getting bigger and bigger, the requirements for safety are getting higher and higher. Traditional tile adhesives have been difficult to meet the requirements, so new tile adhesives have been developed rapidly. [0003] Usually, the main reasons for the tiles to fall off are: (1) the dryi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/08C08B11/08C08B11/20
CPCC09J11/08C08B11/08C08B11/20C09J103/08C08B11/193C09J101/284C08L3/08C08L5/00C08L1/284C08L29/04C09J7/10C09J2203/346C09J2301/408C09J101/02C09J2400/123
Inventor 滕鲲赵明滕波李青华姜爱梅赵建玉孟兆武
Owner SHANDONG YITENG NEW MATERIAL CO LTD
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