Water-retaining building adhesive and preparation process thereof

An adhesive and water-retaining technology, applied in the direction of adhesives, adhesive additives, epoxy resin glue, etc., can solve the problems of construction adhesives such as general water retention, poor fluidity, and affecting operation, and achieve the effect of improving water resistance , avoid the use of organic solvents, improve the effect of water retention

Pending Publication Date: 2022-04-12
ZHEJIANG ZHIQIANG PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The water retention of the construction glue in the prior art is average, which causes a large decrease in the moisture in the construction glue, thereby increasing the viscosity, deteriorating the fluidity, and affecting the operation.

Method used

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  • Water-retaining building adhesive and preparation process thereof
  • Water-retaining building adhesive and preparation process thereof
  • Water-retaining building adhesive and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: polyvinyl butyral, it is prepared by the following method:

[0026] Mix PVA-1788 polyvinyl alcohol and water at a mass ratio of 1:15, raise the temperature to 80°C, add hydrochloric acid to adjust the pH to 2.5, add butyraldehyde and stir at a constant temperature for 90 minutes, the obtained glue appears white, which is the end of the reaction; Adjust the pH to 7.3 with an aqueous sodium hydroxide solution, cool to room temperature, and remove the solvent to obtain polyvinyl butyral with an acetalization degree of 68-72%.

Embodiment 2

[0027] Embodiment 2: ammonium zirconium carbonate, which is prepared by the following method: take zirconium oxychloride and water and mix them at a mass ratio of 1:10, adjust the temperature to 25° C. and stir to dissolve, add ammonium bicarbonate under heat preservation conditions, and stir for 30 minutes. The solvent was removed by lyophilization to obtain ammonium zirconium carbonate; the molar ratio of zirconium oxychloride to ammonium bicarbonate was 2.1:1.

Embodiment 3

[0028] Embodiment 3: A water-retaining construction adhesive, which is prepared by the following method: polyvinyl butyral (prepared in Example 1), polyvinyl alcohol (PVA-1788 type), bisphenol A type Epoxy resin (Jusheng brand E03 type), PEO-PPO-PEO triblock copolymer (P123 type), methyl cellulose and water are mixed, stirred and heated to 90°C to dissolve completely; after holding for 30min, cool down to 55°C ℃, add the formulated amount of ammonium persulfate, stir and react for 30 minutes; add the formulated amount of dibutyl phthalate, kaolin (4000 mesh, for coating), ammonium zirconium carbonate, corn starch (just meet GB / T8885-2017 , select COFCO brand) and potassium carbonate this time, stir evenly, obtain product.

[0029] The formulation information of a water-retaining construction adhesive (sample 3a, sample 3b and sample 3c) of this embodiment is shown in Table 1, and the unit in Table 1 is parts by weight.

[0030] Table 1

[0031]

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PUM

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Abstract

The invention discloses a water-retaining building adhesive and a preparation process of the water-retaining building adhesive. Comprising the following components in parts by weight: 1.8 to 2.1 parts of ammonium zirconium carbonate, 9 to 11 parts of corn starch, 0.09 to 0.11 part of potassium carbonate, 100 parts of polyvinyl butyral, 30 to 35 parts of polyvinyl alcohol, 15 to 17 parts of bisphenol A epoxy resin, 0.95 to 1.05 parts of PEO-PPO-PEO triblock copolymer, 0.48 to 0.52 part of methyl cellulose, 0.24 to 0.26 part of ammonium persulfate, 7 to 9 parts of dibutyl phthalate, 14 to 16 parts of kaolin and 750 to 850 parts of water. The method has the advantage of water retention.

Description

technical field [0001] The invention relates to a water-retaining construction adhesive and a production process thereof. Background technique [0002] With the great development of the construction industry, construction adhesives have developed into a class of materials that are widely used and widely used. In engineering applications, construction adhesives undertake many functions such as connection, sealing, fixing, moisture-proof, anti-corrosion, damping, shock absorption, wear resistance, reinforcement, and protection. [0003] The water retention of the construction glue in the prior art is average, which causes the water in the construction glue to decrease greatly, thereby increasing the viscosity, deteriorating the fluidity, and affecting the operation. Contents of the invention [0004] The first object of the present invention is to provide a water-retaining construction adhesive, which has the advantage of water retention. [0005] Above-mentioned technical...

Claims

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Application Information

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IPC IPC(8): C09J129/14C09J129/04C09J163/00C09J11/04C09J11/06C09J11/08
Inventor 卢宇峰金敏敏
Owner ZHEJIANG ZHIQIANG PAINT
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