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A water-resistant and anti-corrosion soybean protein adhesive and preparation method thereof

A soybean protein glue and adhesive technology, which is applied in the preparation of protein adhesives, animal glue or gelatin, adhesives, etc., can solve the problems of harming human health, insignificant effect, toxic gas, etc.

Active Publication Date: 2021-04-30
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When trialdehyde adhesives are used in the production of various wood products, harmful gases such as free formaldehyde will be released during their production and use, resulting in the existence of toxic gases in production workshops and living rooms, which seriously endanger people's health.
Many foreign researchers have confirmed that the bonding strength, viscosity, stability, and water resistance of modified soybean protein-based adhesives have been improved compared with those before modification; however, these modification methods have no significant effect, and soybean protein adhesives The adhesive still has the problems of poor water resistance and easy deterioration

Method used

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  • A water-resistant and anti-corrosion soybean protein adhesive and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] A preparation method of a water-resistant and anti-corrosion soybean protein adhesive, comprising the following steps:

[0033] (1) Disperse 0.01g of modified aramid fiber in 85g of distilled water, and disperse with ultrasonic assistance for 30 minutes;

[0034] (2) Evenly disperse 15g of soybean protein isolate powder in the fiber dispersion obtained in step (1), then raise the temperature of the water bath to 30°C and stir for 20 minutes;

[0035] (3) Add 3g of cross-linking agent to the mixture obtained in step (2), and stir for 10 minutes to disperse evenly.

[0036] The preparation method of above-mentioned modified aramid fiber is as follows:

[0037] Dissolve 0.18g catechol, 0.09g pyrogallol and 0.22g tetraethylenepentamine in 200g distilled water, adjust the pH to 9.0, add 0.1g aramid fiber and stir at room temperature for 5 hours, filter, wash, Dry at 60° C. for 24 hours to obtain modified aramid fibers.

[0038] The performance and quality indicators of th...

Embodiment 2

[0040] A preparation method of a water-resistant and anti-corrosion soybean protein adhesive, comprising the following steps:

[0041] (1) Disperse 0.03g of modified aramid fibers in 85g of distilled water, and disperse with ultrasonic assistance for 30 minutes;

[0042] (2) Evenly disperse 15g of soybean protein isolate powder in the fiber dispersion obtained in step (1), then raise the temperature of the water bath to 30°C and stir for 20 minutes;

[0043] (3) Add 3g of cross-linking agent to the mixture obtained in step (2), and stir for 10 minutes to disperse evenly.

[0044] The preparation method of above-mentioned modified aramid fiber is as follows:

[0045] Dissolve 0.18g catechol, 0.09g pyrogallol and 0.22g tetraethylenepentamine in 200g distilled water, adjust the pH to 9.0, add 0.1g aramid fiber and stir at room temperature for 5 hours, filter, wash, Dry at 60° C. for 24 hours to obtain modified aramid fibers.

[0046] The performance and quality indicators of t...

Embodiment 3

[0048] A preparation method of a water-resistant and anti-corrosion soybean protein adhesive, comprising the following steps:

[0049] (1) Disperse 0.05g of modified aramid fibers in 85g of distilled water, and disperse with ultrasonic assistance for 30 minutes;

[0050] (2) Evenly disperse 15g of soybean protein isolate powder in the fiber dispersion obtained in step (1), then raise the temperature of the water bath to 30°C and stir for 20 minutes;

[0051] (3) Add 3g of cross-linking agent to the mixture obtained in step (2), and stir for 10 minutes to disperse evenly.

[0052] The preparation method of above-mentioned modified aramid fiber is as follows:

[0053] Dissolve 0.18g catechol, 0.09g pyrogallol and 0.22g tetraethylenepentamine in 200g distilled water, adjust the pH to 9.0, add 0.1g aramid fiber and stir at room temperature for 5 hours, filter, wash, Dry at 60° C. for 24 hours to obtain modified aramid fibers.

[0054] The performance and quality indicators of the...

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Abstract

The invention discloses a water-resistant and anti-corrosion soybean protein adhesive and a preparation method thereof. The medium is prepared from 80-85 parts, and the preparation method includes two steps of surface modification of aramid fiber and synthesis of adhesive. The invention has the advantages of: being able to meet the water resistance requirements of the adhesive used for plywood, ensuring the practical performance of the soybean protein adhesive; thoroughly solving the problem of indoor air pollution caused by common "trialdehyde" adhesive plywood; improving The non-toxic soybean protein adhesive has certain antibacterial properties, which can prolong the service life of the soybean protein adhesive.

Description

technical field [0001] The invention relates to an adhesive and its preparation, in particular to a water-resistant and anti-corrosion soybean protein adhesive and a preparation method thereof. Background technique [0002] With the increase in the output of the wood-based panel industry, the amount and variety of wood adhesives are increasing. At present, the three-aldehyde adhesives (urea-formaldehyde resin, phenolic resin and melamine-formaldehyde resin) in the adhesives used in the wood industry in my country have a very important position and effect. When trialdehyde adhesives are used in the production of various wood products, harmful gases such as free formaldehyde will be released during their production and use, resulting in the existence of toxic gases in production workshops and living rooms, which seriously endanger people's health. At the same time, people's requirements for environmental protection are increasing, and the world economy is also developing from ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J11/06C09J11/08D06M13/165D06M13/148D06M13/328D06M101/36
Inventor 谷卫东李建章高强张世峰周文瑞龚珊珊张德荣张伟陈惠
Owner BEIJING FORESTRY UNIVERSITY
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