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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, large amount of water, and fast drying speed

Active Publication Date: 2012-10-31
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] A kind of esterized starch modified glutinous rice humid glue, raw material formula: 760 kg of de -ion water, esterized starch A 60 kg, esterized starch B 35 kg, oxidized starch 50 kg, modified waxy corn starch 50 kg, acrylic amide5 kg, 1 kg of aluminum sulfate, 4 kg of sodium benzoate, 1 kg of foaming agent, 20 kg of urea, 12 kg of ethylene glycol, 3 kg of sterilization agent, 20 kg of white latex, and prepare as follows:

[0050]In the reactor, add ionic water, turn on the mixer, add four modified starch in turn, and then add acrylamide and iron -free aluminum to 50 ° C, then add sodium benzoate and muffle to sterilizeContinue, continue to rise to 75 ° C constant temperature for 10 minutes, continue to rise to 85 ° C to react for 45 minutes, then cool down to 45 ° C, add urea, ethylene glycol, and fungicide for 30 minutes.Later, the materials are packed to obtain essential starch to modify glutinous rice damp gum.Product production and packaging throughout the process.

...

Embodiment 2

[0057] A kind of esterized starch modified glutinous rice humid glue, raw material formula: 770 kg of de -ion water, esterized starch A 70 kg, esterized starch B 30 kg, oxidation starch 60 kg, modified waxy corn starch 60 kg, acrylic amide8 kg, 1.5 kg of iron sulfate, 4 kg of sodium benzoate, 1.5 kg of foaming agent, 20 kg of urea, 10 kg of ethylene glycol, 4 kg of fungicide, and 40 kg of white latex.

[0058] In the reactor, add ionic water, turn on the mixer, add four modified starch in turn, and then add acrylamide and iron -free aluminum to 50 ° C, then add sodium benzoate and muffle to sterilizeContinue, continue to rise to 75 ° C constant temperature for 10 minutes, continue to rise to 88 ° C to react for 45 minutes, then cool to 45 ° C, add urea, ethylene glycol, and bactericide for 30 minutes, add adhesive white latex and stir for 45 minutes after dispersing evenly.Later, the materials are packed to obtain essential starch to modify glutinous rice damp gum.Product producti...

Embodiment 3

[0061] A kind of esterized starch modified glutinous rice humid glue, raw material formula: 770 kg of de -ion water, esters A 50 kg, esterized starch B 50 kg, oxide starch 40 kg, modified waxy corn starch 40 kg, acrylic amide7 kg, 1.2 kg of iron sulfate, 4 kg of sodium benzoate, 1.2 kg of foaming agent, 20 kg of urea, 10 kg of ethylene glycol, 2 kg of fungicide, and 30 kg of white latex.

[0062] In the reactor, add ionic water, turn on the mixer, add four modified starch in turn, and then add acrylamide and iron -free aluminum to 50 ° C, then add sodium benzoate and muffle to sterilizeContinue, continue to rise to 75 ° C constant temperature for 10 minutes, continue to rise to 86 ° C to react for 45 minutes, then cool to 45 ° C, add urea, ethylene glycol, and fungicide for 30 minutes.Later, the materials are packed to obtain essential starch to modify glutinous rice damp gum.Product production and packaging throughout the process.

[0063] The products obtained by this embodiment...

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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 present invention is the field of the wallpaper industry auxiliary materials adhesive, which involves a kind of ester -to -glutinous glutinous rice dampness and its preparation methods. Background technique [0002] The wallpaper paste construction, which used polyvinyl alcohol and white latex in the past. The disadvantages: (1) When the wallpaper pastes the construction coating, the flowing and lubricating properties are low. After the wallpaper on the wall, the excess rubber fluid is not easy to discharge.Degree; (2) After the rubber is dry, the stubborn gum is not easy to clean up at the seam of the wallpaper, which affects the aesthetic effect;Early starch adhesives have simple production venues and improper raw materials, which leads to short shelf life, yellow hair mold, and easily cause secondary pollution of the environment. [0003] Glutinous rice wet glue, also known as Japanese wet glue, is a high -performance continuous agent for wallpapers....

Claims

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Application Information

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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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