Method for preparing sulfoethyl-carboxymethyl-crosslinked starch based wallpaper adhesive

A technology of cross-linking starch and carboxymethyl, applied in the directions of starch-derived adhesives, adhesive types, etc., can solve the problems of unstable performance and slow drying speed of starch-based adhesives

Active Publication Date: 2013-03-13
GANSU GLDARK NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this invention relates to improving efficiency when processing data by reducing delays caused during transmission between different devices or systems.

Problems solved by technology

This patented technical solution described in this patents relates to developing new type of artificially created substances that can be used instead or combined with conventional coating agents such as paint on walls without causing harmful effects like health hazards due to their poor quality sources.

Method used

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  • Method for preparing sulfoethyl-carboxymethyl-crosslinked starch based wallpaper adhesive
  • Method for preparing sulfoethyl-carboxymethyl-crosslinked starch based wallpaper adhesive
  • Method for preparing sulfoethyl-carboxymethyl-crosslinked starch based wallpaper adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1). Add 340Kg of water to the mixing tank, and add 50Kg of hydroxypropyl starch, 40Kg of oxidized starch, and 10Kg of octenyl succinate in turn while stirring, so that the substances are evenly dispersed;

[0034] (2). Add 30Kg of sulfoethyl-carboxymethyl-cross-linked starch into the above-mentioned slurry mixing kettle, and stir for 15 minutes to disperse the added substances evenly;

[0035] (3). Raise the temperature to 60°C, add 0.6Kg of sodium tetraborate, and stir for 50 minutes;

[0036] (4). Cool down to room temperature, add 4Kg of additives, and stir until uniform;

[0037] (5). Filter with 80 meshes to obtain the wallpaper glue product.

Embodiment 2

[0039] (1). Add 300Kg of water to the mixing tank, and add 40Kg of hydroxypropyl starch, 20Kg of oxidized starch, and 15Kg of octenyl succinate in turn while stirring, so that the substances are evenly dispersed;

[0040] (2). Add 40Kg of sulfoethyl-carboxymethyl-cross-linked starch into the above-mentioned slurry mixing kettle, and stir for 10 minutes to disperse the added substances evenly;

[0041] (3). Heat up to 70°C, add 0.4Kg of sodium tetraborate, and stir for 60 minutes;

[0042] (4). Cool down to room temperature, add 3Kg of additives, and stir until uniform;

[0043] (5). Filter with 80 meshes to obtain the wallpaper glue product.

Embodiment 3

[0045] (1). Add 250Kg of water into the mixing tank, and add 10Kg of hydroxypropyl starch, 30Kg of oxidized starch, and 10Kg of octenyl succinate in turn while stirring, so that the substances are evenly dispersed;

[0046] (2). Add 50Kg of sulfoethyl-carboxymethyl-cross-linked starch into the above-mentioned slurry mixing kettle, and stir for 15 minutes to disperse the added substances evenly;

[0047] (3). Raise the temperature to 75°C, add 0.4Kg of sodium tetraborate, and stir for 60 minutes;

[0048] (4). Cool down to room temperature, add 2Kg of additives, and stir until uniform;

[0049] (5). Filtering with a 100-mesh screen to obtain the wallpaper glue product.

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PUM

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Abstract

The invention discloses a method for preparing a sulfoethyl-carboxymethyl-crosslinked starch based wallpaper adhesive, which comprises the following steps: (1) in a step of sulfoethyl-carboxymethyl-crosslinked starch preparation, through taking a chloroacetic acid as a carboxymethylated reagent, sodium 2-chloroethanesulfonate monohydrate as a sulfoethylated reagent, and epoxy chloropropane as a crosslinking agent, preparing sulfoethyl-carboxymethyl-crosslinked triple compound modified starches by using a solvent method; and (2) in a step of wallpaper adhesive preparation, through taking sulfoethyl-carboxymethyl-crosslinked starches, hydroxypropyl starches, oxidized starches and starch octenyl succinate anhydride starches as raw materials, adding sodium tetraborate as a crosslinker, and after the obtained mixture is reacted a period of time, adding an additive, uniformly stirring the obtained mixture, and filtering the obtained product so as to obtain the wallpaper adhesive. According to the invention, new varieties of modified starches are developed aiming at the wallpaper adhesive, and other three types of modified starches are compounded; and on the basis of synthesizing the advantages of various modified starches, a starch adhesive for green and environmental-friendly wallpaper, which is strong in adhesive property, high in solid content, rapid in drying speed and good in qualitative property, is prepared, and has the characteristics of non-toxicity and odourlessness.

Description

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Claims

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Application Information

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Owner GANSU GLDARK NEW MATERIAL
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