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Environmental-friendly amylopectin composite adhesive for paper products and production method thereof

A composite adhesive and amylopectin technology, which is applied in the directions of amylose/amylopectin derivative adhesives, adhesive types, mechanical processing/deformation, etc. Stability, large amount of starch and other problems, to achieve the effect of low production cost, strong initial adhesion and adhesion, and long storage time

Inactive Publication Date: 2010-06-30
莫元烈
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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 solve the technical problems of the existing starch adhesives, such as large amount of starch, high energy consumption, unstable product performance, difficult natural air drying of corrugated paper products, poor hardness, easy efflorescence, easy moisture absorption, etc., to provide a composite adhesive Adhesive product and its production method

Method used

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  • Environmental-friendly amylopectin composite adhesive for paper products and production method thereof
  • Environmental-friendly amylopectin composite adhesive for paper products and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Formula:

[0035] 100 parts of tapioca starch, 6 parts of oxidizing agent hydrogen peroxide, 3 parts of oxidation terminator sodium sulfite, 4 parts of crosslinking agent formaldehyde, 8 parts of complexing aldehyde removing agent and cyclizing agent urea, 5 parts of etherifying agent monochloroacetic acid, pasting agent hydrogen 3.5 parts of sodium oxide, 6 parts of polyvinyl alcohol as a reinforcing agent, 2 parts of zinc sulfate as an antiseptic, 10 parts of bentonite as a drier, PH regulator sulfuric acid and sodium hydroxide according to the pH value requirements of the process, and 700 parts of water.

[0036] 2. Preparation process:

[0037] Put 230 parts of water in the reaction kettle, start the agitator, add 100 parts of tapioca starch into the reaction kettle, and stir to make a 30% starch suspension.

[0038] Add 6 parts of oxidant hydrogen peroxide to the starch suspension to oxidize the starch to obtain the expected oxidized starch, then add 3 parts of...

Embodiment 2

[0045] 1. Formula:

[0046] 110 parts of corn starch, 3 parts of oxidizing agent sodium hypochlorite, 2.5 parts of oxidation terminator sodium sulfite, 6 parts of crosslinking agent formaldehyde, 9 parts of complexing aldehyde removing agent and cyclizing agent urea, 7 parts of etherifying agent monochloroacetic acid, pasting agent hydrogen 4 parts of sodium oxide, 10 parts of polyvinyl alcohol as a strengthening agent, 2.5 parts of zinc sulfate as an antiseptic, 15 parts of bentonite as a drier, PH regulator hydrochloric acid and sodium hydroxide according to the pH value requirements of the process, and 750 parts of water.

[0047] 2. Preparation process:

[0048] First, put 250 parts of water in the reactor, start the agitator, add 110 parts of cornstarch into the reactor, and stir to make a 30% starch suspension.

[0049] Add 3 parts of oxidant sodium hypochlorite to the starch suspension to oxidize the starch. After obtaining the expected oxidized starch, add 2.5 parts of ...

Embodiment 3

[0056] 1. Formula:

[0057] 70 parts of corn flour starch, 40 parts of sorghum starch, 8 parts of oxidizing agent sodium hypochlorite, 6 parts of oxidation terminator sodium thiosulfate, 5 parts of crosslinking agent epichlorohydrin, 4 parts of etherifying agent monochloroacetic acid, pasting agent hydrogen oxidation 5 parts of sodium, 7 parts of polyvinyl alcohol as a strengthening agent, 2.5 parts of cyclizing agent urea, 3 parts of zinc sulfate as a preservative, 10 parts of bentonite as a stabilizer, 10 parts of bentonite, PH regulator sulfuric acid and sodium hydroxide according to the pH requirements of the process Quantity, 750 parts of water.

[0058] 2. Preparation process:

[0059] First put 250 parts of water in the reactor, start the mixer, add 70 parts of corn flour starch and 40 parts of high-grain starch into the reactor, and mix to form a 30% starch suspension.

[0060] Add 8 parts of oxidant sodium hypochlorite to the starch suspension to oxidize the starch....

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Abstract

The invention discloses an environmental-friendly amylopectin composite adhesive for paper products and a production method thereof. The composite adhesive is prepared by oxidizing, cross-linking, etherifying and pasting starch to generate a modified starch adhesive, modifying polyvinyl alcohol to be used as a reinforcing agent, adding a preserving agent and a drier, and compounding. The environmental-friendly amylopectin composite adhesive for the paper product has strong initial adhesion and adhesive force, high-speed drying, fast natural air-drying without the phenomenon of wire drawing, corrugation deviation, corrugation-collapse, and the like, favorable cardboard hardness and stiffness, and has no efforescence, and does not absorb moisture. The invention is applied to the glue for producing three domestic corrugated boards and applied to the glue for various paper barrels, paper tubes, cement bag papers, furniture and interior decorations.

Description

Technical field: [0001] The invention belongs to the technical field of adhesives, and relates to a composite adhesive for paper products using starch as a raw material and a production method thereof. Background technique: [0002] Adhesives for corrugated cardboard, after banning the use of water glass glue, have successively developed various starch adhesives for corrugated cardboard production. Mainly, raw starch and oxidized starch are mixed with various additives to form a glue, and borax is used as a crosslinking agent. When this type of starch adhesive is used in the production of corrugated cardboard, it often occurs: ① gelation and drawing, edge opening after gluing, collapse and deformation, or corrugated cardboard shrinkage and flute, and corrugation; Pan-alkali, moisture absorption, etc.; ③The adhesive has a short storage time and is easy to deteriorate and become sour and smelly; ④The operation requirements are high and difficult, and it is difficult for manuf...

Claims

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Application Information

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IPC IPC(8): C09J103/20B31F1/20B31F5/04
Inventor 莫元烈
Owner 莫元烈
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