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Sticking enhancing water-loss reducer

A technology of water-retaining agent and sodium carboxymethyl starch, which is applied in the direction of adhesives, adhesive types, polysaccharide adhesives, etc., can solve the problems of few users, poor putty strength, grinding and irritating nose, etc., and achieve good transparency, The film is soft and bright, and the effect of good spreadability

Inactive Publication Date: 2005-01-26
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the scraping and coating process, construction workers are prone to burning their hands and choking their noses when grinding. The putty produced is weak in strength, not resistant to water, and easy to peel
[0005] There are also neutral dry powder adhesives on the market, such as the high-viscosity architectural paint rubber powder in the CN1225934A patent, but the price is more than 30,000 yuan / ton, which is expensive and has few users

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Get sodium carboxymethyl starch 15%, cross-linked polysaccharide acetate 50%, konjac mannan 1%, light calcium carbonate 34%.

[0021] The preparation steps are:

[0022] 1. Weigh each material in the above-mentioned thickening and water-retaining agent according to their respective weight percentages.

[0023] 2. First put sodium carboxymethyl starch and cross-linked polysaccharide acetate into the conical mixing kettle, then put in konjac mannan, and finally put in light calcium carbonate.

[0024] 3. Start the conical mixing tank and stir for 20 minutes to mix evenly to obtain the viscosity-increasing water-retaining agent.

Embodiment 2

[0026] Get sodium carboxymethyl starch 18%, cross-linked polysaccharide acetate 45%, konjac mannan 2%, light calcium carbonate 35%.

[0027] The preparation steps are the same as in Example 1.

Embodiment 3

[0029] Get sodium carboxymethyl starch 20%, cross-linked polysaccharide acetate 36.5%, konjac mannan 3.5%, light calcium carbonate 40%.

[0030] The preparation steps are the same as in Example 1.

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PUM

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Abstract

The invention discloses a sticking enhancing water-loss reducer which comprises sodium carboxymethylstarch, cross-linked polysaccharides acetic ester, konjac glucomannan and light calcium carbonate, the interior wall coating prepared from the agent has high bonding strength.

Description

technical field [0001] The invention relates to a construction adhesive, in particular to a viscosity-increasing and water-retaining adhesive for gypsum construction plaster. Background technique [0002] The plastering material (commonly known as putty) used for interior wall decoration of buildings is generally composed of fillers, adhesives and additives. Adhesives currently widely used are 107 glue, 801 glue and glue made of polyvinyl alcohol. These glues generally contain formaldehyde, a substance harmful to the human body, and the products are liquid. Packaging and transportation are extremely inconvenient, and there is a pungent smell during use. Products produced with it have poor bonding strength, are not water-resistant, are easy to crack, and lose powder. Especially now a large number of small production plants do not produce according to the process requirements, causing the formaldehyde content to seriously exceed the standard, and the ...

Claims

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Application Information

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IPC IPC(8): C09J105/00
Inventor 曹建军
Owner WUHAN UNIV