Soybean-based protein adhesive for wood-based panels and preparation method thereof

A soy-based protein and protein glue technology, applied in the preparation of protein adhesives, animal glue or gelatin, adhesives, etc., can solve the problems of high toxicity of cross-linking agents, environmental pollution, etc., achieve excellent water resistance, and solve excessive dependence on , The effect of solving resource problems

Active Publication Date: 2021-09-07
宏耐木业(宿迁)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these major types of cross-linking agents generally have problems such as high toxicity and environmental pollution. It is of great significance to develop environmentally friendly and low-toxicity green cross-linking agents

Method used

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  • Soybean-based protein adhesive for wood-based panels and preparation method thereof
  • Soybean-based protein adhesive for wood-based panels and preparation method thereof
  • Soybean-based protein adhesive for wood-based panels and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Prepare materials according to the following weight ratio (Kg):

[0047]

[0048] 1. Put 10Kg of polycarbodiimide, 12Kg of tannic acid and 2Kg of ferric chloride in a reaction kettle, and stir evenly at 800 rpm to obtain a crosslinking agent for soy-based protein adhesives.

[0049] 2. Disperse 5Kg of sodium hydroxide and 10Kg of urea in water, and stir evenly at a rotating speed of 900 rpm to obtain a mixed solution of sodium hydroxide and urea.

[0050] 3. Disperse the cross-linking agent prepared in step 1 into the above-mentioned mixed solution of sodium hydroxide and urea, and stir evenly at 1000 rpm to obtain a mixed solution of sodium hydroxide and urea dispersed with the cross-linking agent .

[0051] 4. Add the above-mentioned mixed solution of alkali and urea containing a crosslinking agent to 25 kg of soy-based protein raw material at a rotational speed of 1000 rpm, and copolymerize at 60° C. to obtain a soy-based protein adhesive.

[0052] The perfor...

Embodiment 2

[0056] 1. Prepare materials according to the following weight ratio (Kg):

[0057]

[0058]

[0059] 1. Put 12Kg of polycarbodiimide, 12Kg of caffeic acid and 2Kg of sodium periodate in a reaction kettle, and stir evenly at 1000 rpm to obtain a crosslinking agent for soy-based protein adhesives.

[0060] 2. Disperse 10Kg of potassium hydroxide and 15Kg of urea in water, and stir evenly at a rotating speed of 1100 rpm to obtain a mixed solution of potassium hydroxide and urea.

[0061] 3. Disperse the cross-linking agent prepared in step 1 into the above-mentioned mixed solution of potassium hydroxide and urea, and stir evenly at 1000 rpm to obtain a mixed solution of potassium hydroxide and urea dispersed with the cross-linking agent .

[0062]4. Add the above-mentioned mixed solution of alkali and urea containing a crosslinking agent to 20 kg of soy-based protein raw material at a rotational speed of 1200 rpm, and copolymerize at 70° C. to obtain a soy-based protein ad...

Embodiment 3

[0067] 1. Prepare materials according to the following weight ratio (Kg):

[0068]

[0069] 1. Put 10Kg of polycarbodiimide, 10Kg of protocatechuic acid and 3Kg of hydrogen peroxide in a reaction kettle, and stir evenly at 1100 rpm to obtain a crosslinking agent for soy-based protein adhesives.

[0070] 2. Disperse 8Kg of calcium hydroxide and 15Kg of urea in water, and stir evenly at a rotating speed of 1000 rpm to obtain a mixed solution of calcium hydroxide and urea.

[0071] 3. Disperse the cross-linking agent prepared in step 1 into the above-mentioned mixed solution of calcium hydroxide and urea, stir evenly at 900 rpm to obtain a mixed solution of calcium hydroxide and urea dispersed with cross-linking agent .

[0072] 4. Add the mixed solution of alkali and urea containing the cross-linking agent to 20 kg of soy-based protein raw material at a rotational speed of 1000 rpm, and copolymerize at 90° C. to obtain a soy-based protein adhesive.

[0073] The performance ...

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Abstract

The invention relates to a cross-linking agent for soybean-based protein adhesives for wood-based panels and a preparation method thereof, and soybean-based protein adhesives for wood-based panels and a preparation method thereof. The main raw material soybean meal in the invention is food crop processing residues , is a renewable resource that can simultaneously solve the problem of recycling food crop waste and the high cost of biomass adhesives, and solve the problem of excessive dependence of synthetic adhesives on fossil resources, which is in line with environmental protection and sustainable development. Development requirements, with important economic and social benefits.

Description

technical field [0001] The invention relates to an adhesive and a preparation method, in particular to a bean-based protein adhesive for wood-based panels and a preparation method thereof. Background technique [0002] Most of the adhesives used in my country's wood-based panel industry are synthetic resin adhesives that release formaldehyde. The formaldehyde and volatile organic compounds produced during the production and use of such wood products will seriously endanger the health of industrial workers and consumers. Physical and mental health. In order to solve the existing problems and hazards of the existing wood-based panel industrial adhesives, it is of great significance to develop green and environmentally friendly formaldehyde-free adhesives. [0003] Soybean is the most abundant source of vegetable protein in the world, and the protein content in soybean is very high. There are a large number of polar groups such as amino, carboxyl, hydroxyl, and sulfhydryl group...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/06C09J11/08C09J189/00
CPCC08L2312/00C09J11/06C09J11/08C09J189/00C08L79/00C08K13/02C08K5/0025C08K5/21C08K3/22
Inventor 张世锋庞惠文韩春蕊康海娇李建章
Owner 宏耐木业(宿迁)有限公司
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