Esterified-starch-modified waxy corn wet glue and preparation method thereof

A technology of esterifying starch and glutinous rice wet glue, which is applied in the direction of starch-derived adhesives, monocarboxylate copolymer adhesives, amylose/pullulan derivative adhesives, etc., which can solve the inconsistency of energy-saving policies and other problems, to achieve the effect of increasing the pasting area, low production cost, and reducing decoration cost

Active Publication Date: 2014-03-05
GAREFU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of using white latex and polyvinyl alcohol solution in the existing wallpaper industry, and polyvinyl alcohol and monomers are petrochemical products, which are inconsistent with the national energy-saving policy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] An esterified starch modified glutinous rice wet glue, raw material formula: 760 kg of deionized water, 60 kg of esterified starch A, 35 kg of esterified starch B, 50 kg of oxidized starch, 50 kg of modified waxy corn starch, acrylamide 5 kg, 1 kg of iron-free aluminum sulfate, 4 kg of sodium benzoate, 1 kg of defoamer, 20 kg of urea, 12 kg of ethylene glycol, 3 kg of bactericide, and 20 kg of white latex, prepared as follows:

[0050]In the reactor, add deionized water, start the agitator, add four kinds of modified starch in turn, after dispersing evenly, add acrylamide and iron-free aluminum sulfate and raise the temperature to 50°C, then add sodium benzoate and defoamer to sterilize For processing, continue to heat up to 75°C for 10 minutes, continue to heat up to 85°C for 45 minutes, then cool down to 45°C, add urea, ethylene glycol and fungicides and stir for 30 minutes, after the dispersion is uniform, add tackifier white latex and stir for 45 minutes After disch...

Embodiment 2

[0057] An esterified starch modified glutinous rice wet glue, raw material formula: 770 kg of deionized water, 70 kg of esterified starch A, 30 kg of esterified starch B, 60 kg of oxidized starch, 60 kg of modified waxy corn starch, acrylamide 8 kg, 1.5 kg of iron-free aluminum sulfate, 4 kg of sodium benzoate, 1.5 kg of defoamer, 20 kg of urea, 10 kg of ethylene glycol, 4 kg of bactericide, and 40 kg of white latex, prepared as follows:

[0058] In the reactor, add deionized water, start the agitator, add four kinds of modified starch in turn, after dispersing evenly, add acrylamide and iron-free aluminum sulfate and raise the temperature to 50°C, then add sodium benzoate and defoamer to sterilize For processing, continue to heat up to 75°C for 10 minutes, continue to heat up to 88°C for 45 minutes, then cool down to 45°C, add urea, ethylene glycol and fungicides and stir for 30 minutes, after the dispersion is uniform, add tackifier white latex and stir for 45 minutes After ...

Embodiment 3

[0061] An esterified starch modified glutinous rice wet glue, raw material formula: 770 kg of deionized water, 50 kg of esterified starch A, 50 kg of esterified starch B, 40 kg of oxidized starch, 40 kg of modified waxy corn starch, acrylamide 7 kg, 1.2 kg of iron-free aluminum sulfate, 4 kg of sodium benzoate, 1.2 kg of defoamer, 20 kg of urea, 10 kg of ethylene glycol, 2 kg of bactericide, and 30 kg of white latex, prepared as follows:

[0062] In the reactor, add deionized water, start the agitator, add four kinds of modified starch in turn, after dispersing evenly, add acrylamide and iron-free aluminum sulfate and raise the temperature to 50°C, then add sodium benzoate and defoamer to sterilize For processing, continue to heat up to 75°C for 10 minutes, continue to heat up to 86°C for 45 minutes, then cool down to 45°C, add urea, ethylene glycol and fungicides and stir for 30 minutes, after the dispersion is uniform, add tackifier white latex and stir for 45 minutes After ...

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PUM

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Abstract

The invention belongs to the field of auxiliary binders in the wallpaper industry and particularly relates to an esterified-starch-modified waxy corn wet glue. The esterified-starch-modified waxy corn wet glue is mainly prepared from the following raw materials in parts by weight through gelatinization, cross-linking and complexation: 76-77 parts of de-ionized water, 5-7 parts of esterified starch A, 3-5 parts of esterified starch B, 4-6 parts of oxidized starch, 4-6 parts of modified waxy corn starch, 0.5-0.8 part of acrylamide, 0.1-0.15 part of nonferrous aluminum sulfate, 0.4 part of sodium benzoate, 0.1-0.15 part of a defoaming agent, 2 parts of urea, 1-1.2 parts of ethylene glycol, 0.2-0.4 part of a bactericide and 2-4 parts of white latex. The invention also provides a preparation method of the modified waxy corn wet glue. The esterified-starch-modified waxy corn wet glue, disclosed by the invention, is extracted and purified from natural waxy corns, belongs to circular plant products and is a renewable resource, so that the policy of saving energy in China is performed better; and meanwhile, the esterified-starch-modified waxy corn wet glue has the advantages of strong bonding power and capabilities of being mixed with water for 100%, improving the bonding area of wallpaper and reducing decoration cost for a user.

Description

technical field [0001] The invention belongs to the field of auxiliary material adhesives in the wallpaper industry, and in particular relates to an esterified starch modified glutinous rice wet glue and a preparation method thereof. Background technique [0002] For wallpaper paste construction, polyvinyl alcohol and white latex were used in the past. The disadvantages: (1) When the wallpaper is pasted and applied, the leveling and lubricity are low. (2) After the glue is dried, the residual glue at the joints of the wallpaper is not easy to clean up, which affects the aesthetic effect; (3) The cost of polyvinyl alcohol and white latex is high, and the residual monomers in the polymerization process will cause air pollution; (4) The early starch adhesives had poor production facilities and improper raw material compatibility, resulting in a short shelf life of the product, easy yellowing and mildew, and easy to cause secondary pollution to the environment. [0003] Glutino...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J103/06C09J103/10C09J103/14C09J131/04C09J11/04C09J11/06
Inventor 周春生张智辉
Owner GAREFU TECH CO LTD
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