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Corn starch adhesive and preparation method thereof

A corn starch and adhesive technology, applied in the directions of starch adhesives, adhesives, adhesive types, etc., can solve problems such as poor drying speed and stability

Inactive Publication Date: 2013-10-02
ZHANGJIAGANG LUYUAN STARCH FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of cardboard with strong adhesive force, good fluidity, non-toxic and tasteless, and good stiffness of cardboard, aiming at the defects of cardboard drying speed and poor stability in existing general corn starch adhesives. Modified corn starch adhesive glue with fast drying speed and preparation method thereof

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0009] (1) Accurately weigh 100 parts of corn starch; 2 parts of ferrous sulfate; 4 parts of hydrogen peroxide; 60 parts of sodium hydroxide; 2 parts of borax; 100 parts of sulfuric acid; 8 parts of urea-formaldehyde resin;

[0010] (2) Preparation method

[0011] Add ferrous sulfate to 1 / 2 of the total amount of water and stir to raise the temperature to 98°C to make it completely dissolve, add cornstarch and stir after degrading to 60°C, keep warm for 60min for modification treatment, then add the rest of water, hydrogen peroxide, and hydrogen Stir the sodium oxide for 30 minutes, add urea-formaldehyde resin, borax, sulfuric acid, disperse and complex for 40 minutes, and stir evenly.

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Abstract

The invention relates to a corn starch adhesive and a preparation method thereof. The corn starch adhesive is mainly composed of corn starch, ferrous sulfate, hydrogen peroxide, sodium hydroxide, borax, sulfuric acid, a urea-formaldehyde resin, water and the like. The corn starch adhesive has the characteristics of strong adhesion, good fluidity, non-toxicity, and tastelessness; and cardboards prepared through using the corn starch adhesive have the characteristics of good stiffness, fast drying speed and the like.

Description

technical field [0001] The invention relates to a corn starch adhesive and a preparation method thereof, belonging to the technical field of compound modified starch. Background technique [0002] Starch glue has been widely used as a general-purpose natural adhesive. This is mainly based on two reasons. One is that starch resources are abundant, the price is cheap, and it is non-toxic, odorless, and pollution-free; The reduction poses a threat to chemical products based on petroleum, so that many companies are looking for substitutes, and the adhesive glue used in the cardboard industry has always been using sodium silicate. Due to its high alkali content, it is corrosive to paper. Large, the produced cardboard is easy to get damp, deformed, damaged, or even corroded the inner packaging goods, and the structure, physical properties and chemical properties of starch are changed by physical and chemical methods or biochemical methods, and a variety of starches with specific p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J161/24C09J11/04
Inventor 施东辉
Owner ZHANGJIAGANG LUYUAN STARCH FACTORY
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