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Liquid biological adhesvie using soybean separated protein as base material and production process thereof

A soybean protein isolate and adhesive technology, which is applied in the directions of protein adhesives, adhesives, adhesive types, etc., can solve the problems of difficult product promotion and application, poor water resistance, poor adhesive strength, etc. Improvement of adhesive strength and water resistance, effect of improved adhesive strength and water resistance

Inactive Publication Date: 2006-06-28
黄卫宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Before the present invention was made, there were patent reports abroad that used soybean powder as the main base material and compounded it with solvent to form an adhesive, but its adhesive strength was poor and its water resistance was not good, so it was difficult to form a product for popularization and application

Method used

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  • Liquid biological adhesvie using soybean separated protein as base material and production process thereof
  • Liquid biological adhesvie using soybean separated protein as base material and production process thereof
  • Liquid biological adhesvie using soybean separated protein as base material and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] In the embodiment of the present invention, the liquid bio-adhesive and production method thereof based on soybean protein isolate, its component ratio is by weight percentage:

[0021] Get soybean protein isolate 9.1%, urea 16.4%, water 72.7%, sodium polyphosphate 1.8% in the embodiment of the present invention. First disperse 16.4% urea in 72.7% water, mix and stir to form a urea solution, then add 9.1% soy protein isolate to the urea solution, stir magnetically at room temperature for 1 hour at a speed of 1100 rpm, then slowly add 1.8 % sodium polyphosphate, continue to react with the same rotating speed stirring for 2 hours, obtain soybean protein isolate adhesive. Stirring equipment selection: 94-2 type timing constant temperature magnetic stirrer.

[0022] The adhesive strength and water resistance of the soybean protein isolate adhesive prepared by the embodiment of the present invention are much higher than those of the unmodified soybean protein isolate.

Embodiment 2

[0024] In the embodiment of the present invention, the liquid bio-adhesive and production method thereof based on soybean protein isolate, its component ratio is by weight percentage:

[0025] Get soybean protein isolate 8.9%, urea 15.9%, water 70.8%, sodium polyphosphate 4.4% in the embodiment of the present invention. First disperse 15.9% urea in 70.8% water, mix and stir to form a urea solution, then add 8.9% soy protein isolate to the urea solution, stir magnetically at room temperature for 1.5 hours at a speed of 1150 rpm, then slowly add 4.4 % sodium polyphosphate, continue to react 2.5 hours with above-mentioned same rotating speed stirring reaction, obtain soybean protein isolate adhesive. Stirring equipment selection: 94-2 type timing constant temperature magnetic stirrer.

[0026] The adhesive strength and water resistance of the adhesive obtained by the embodiments of the present invention are the best in all embodiments, much higher than the adhesive strength of u...

Embodiment 3

[0028] In the embodiment of the present invention, the liquid bio-adhesive and production method thereof based on soybean protein isolate, its component ratio is by weight percentage:

[0029] Get soybean protein isolate 8.5%, urea 15.2%, water 67.8%, sodium polyphosphate 8.5% in the embodiment of the present invention. First disperse 15.2% urea in 67.8% water, mix and stir to form a urea solution, then add 8.5% soybean protein isolate to the urea solution, stir magnetically at room temperature for 2 hours, the speed is: 1200 rpm, and then slowly add 8.5 % sodium polyphosphate, continue to react with the same rotating speed stirring for 3 hours, obtain soybean protein isolate adhesive. Stirring equipment selection: 94-2 type timing constant temperature magnetic stirrer.

[0030] The adhesive strength and water resistance of the adhesive obtained by the embodiment of the present invention are slightly worse than those of the first and second embodiments.

[0031] The raw mate...

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Abstract

The invention relate to liquid biologic adhesive used soybean protein isolate as base material. It uses urea and phosphorylating method to act on soybean protein isolate and do control capability chemical modification. It is mainly used in plywood production and cabinetmaking. It belongs to wood adhesive technique field. Its manufacturing includes the following steps: using soybean-protein-isolate, urea, polyphosphate sodium, and water as main component; dispersing urea into the water to form urea solution; adding soybean protein isolate into the solution; stirring at normal temperature, and adding polyphosphate sodium. The invention can change protein structure, and inducts phosphate radical in soybean protein isolate, increase adhesive strength and water resistance, no formaldehyde volatilizing, and will not pollute environment.

Description

technical field [0001] The invention relates to a liquid bio-adhesive with soybean protein isolate as the base material, in particular to using urea and phosphorylation methods to simultaneously act on soybean protein isolate for controlled chemical modification; it is mainly used in plywood production and furniture manufacturing, and belongs to Technical field of wood adhesives. Background technique [0002] Most of the wood adhesives used today are polymers made of petroleum derivatives, mainly phenolic resins, polyurethanes, acrylates, urea-formaldehyde resins, etc., which are polymerized from phenol, formaldehyde, isocyanate, etc. The solvent used It is an organic chemical substance and is extremely volatile. Although the adhesive strength and water resistance of these chemical adhesives are very good, in the process of production, transportation and use, these chemical products will volatilize toxic substances harmful to human body such as phenols and formaldehyde, and...

Claims

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Application Information

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IPC IPC(8): C09J189/00
Inventor 黄卫宁
Owner 黄卫宁
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