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High-solid content adhesive for paper or paperboard composite processing and preparation method thereof

A composite processing, high solid content technology, applied in the directions of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc. To achieve the effect of easier control of oxidation depth, good oxidation effect and stable product quality

Active Publication Date: 2014-04-16
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are two deficiencies in the domestic adhesive industry: one is that the technical level of the industry is low, and the technological content of the products is low; the other is that non-environmental protection products dominate, while some high-performance environmental protection products mainly need to be imported.
However, these added chemical components contain harmful components such as benzene series volatile substances, which limit the application of the product in food packaging and other fields, and are easily deformed during the drying process, resulting in high energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Components and their weight percentages:

[0033] Tap water: 57.64%

[0034] Corn starch: 28.82%

[0035] 800 mesh light calcium carbonate: 8.65%

[0036] Ammonium persulfate: 0.72%

[0037] Hydroxymethylcellulose: 0.58%

[0038] Stearic acid: 0.14%

[0039] Sodium hydroxide: 3.45%

[0040] (1) Prepare materials according to the above material ratio;

[0041] (2) Make the gelatinizer into an aqueous solution with a mass percentage of 30%, and then add the remaining water into the reaction kettle;

[0042] (3) Mix the solid materials, namely corn starch, ammonium persulfate, hydroxymethyl cellulose, and stearic acid according to the above proportions to form rubber powder and add the rubber powder to the reaction kettle while stirring, and react at room temperature for 1 hour;

[0043] (4) Add the prepared gelatinizer solution into the reaction kettle, add it into the reaction kettle at a speed of 100rpm, and stir for 1 minute. The viscosity rises sharply and cann...

Embodiment 2

[0055] Components and their weight percentages:

[0056] Tap water: 64.69%

[0057] Corn starch: 16.17%

[0058] 1200 mesh kaolin: 16.17%

[0059] Sodium percarbonate: 0.45%

[0060] Polyvinyl alcohol: 0.82%

[0061] Stearic acid: 0.08%

[0062] Sodium hydroxide: 1.62%

[0063] (1) Prepare materials according to the above material ratio;

[0064] (2) Make the gelatinizer into an aqueous solution with a mass fraction of 30%, and then add the remaining water into the reaction kettle;

[0065] (3) Mix cornstarch, sodium percarbonate, polyvinyl alcohol, and stearic acid according to the above ratio to form rubber powder, and add it to the reaction kettle while stirring, and react for 1 hour;

[0066](4) Add the prepared gelatinizer solution into the reaction kettle, add it into the reaction kettle at a speed of 100rpm, and stir for 3 minutes. If the viscosity rises sharply and cannot be stirred, stop stirring and let it stand for 1 hour. After the viscosity drops, start sti...

Embodiment 3

[0077] Components and their weight percentages:

[0078] Tap water: 64.52%

[0079] Tapioca starch: 21.51%

[0080] 1000 mesh light calcium carbonate: 10.75%

[0081] Potassium persulfate: 0.54%

[0082] Polyvinyl alcohol: 0.43%

[0083] Sodium stearate: 0.10%

[0084] Sodium hydroxide: 2.15%

[0085] (1) Prepare materials according to the above material ratio;

[0086] (2) Make the gelatinizer into a 30% aqueous solution, and then add the remaining water into the reaction kettle;

[0087] (3) Mix tapioca starch, potassium persulfate, polyvinyl alcohol, and sodium stearate according to the above ratio to form rubber powder, add it to the reaction kettle while stirring, and react for 1 hour;

[0088] (4) Add the prepared gelatinizer solution into the reaction kettle, add it into the reaction kettle at a speed of 200rpm, and stir for 1 minute. The viscosity rises sharply and cannot be stirred. Stop stirring and let it stand for 1 hour. After the viscosity drops, start sti...

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Abstract

The invention relates to a high-solid content adhesive for paper or paperboard composite processing and a preparation method thereof. The adhesive is prepared with water as the carrier through oxidation and gelatinization reaction at the normal temperature (25 DEG C) and under the normal pressure; the adhesive is mainly applied to paper and paperboard composite process, and the production of paper tubes, back-up paper, paper honeycomb material and the like. The adhesive is composed of the following components by weight percent: 45%-67% of water, 20%-30% of starch, 10%-20% of filler, 0.5%-0.65% of oxidant, 0.4-1.07% of replication agent A, 0.1-0.2% of replication agent B and 2%-2.5% of gelatinization agent. The adhesive is prepared at the normal temperature. The adhesive has excellent characteristics such as high solid content, long storage life, stable performance and good initial adhesion stress; the paper and the paperboards composited and processed with the adhesive are not easy to absorb moisture and deform, and high in stiffness, high in turning speed and quick to dry.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof, belonging to the application field of fine chemicals. It specifically relates to a high-solid-content adhesive for composite processing of paper or cardboard and a preparation method thereof. Background technique [0002] At present, there are two deficiencies in the domestic adhesive industry: one is that the technical level of the industry is low, and the technological content of the products is low; the other is that non-environmental protection products dominate, while some high-performance environmental protection products mainly need to be imported. . Therefore, we must choose a non-polluting, reusable material as a raw material, continuously improve the production process technology, achieve high-tech content, and develop high-performance adhesive varieties. The advantages of starch are non-toxic and tasteless, good film-forming performance, and good bonding ability. After ...

Claims

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Application Information

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IPC IPC(8): C09J103/10C09J11/04C09J11/08C09J11/06C08B31/18
Inventor 赵媛媛武书彬吴将伟
Owner SOUTH CHINA UNIV OF TECH
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