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Water-resistant soybean adhesive and preparation method thereof

A soybean adhesive and soybean glue technology, which is applied in the preparation of adhesives, animal glue or gelatin, and the type of adhesive, can solve the problems of high moisture content, increase the cost of wood-based panels, and low soybean protein content, and achieve good mildew resistance Anti-corrosion, good water resistance, and the effect of enhancing the bonding strength

Inactive Publication Date: 2019-06-28
王景玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Adhesives refer to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesives. The common adhesives on the market include urea-formaldehyde adhesives, protein matrix adhesives, and soybean adhesives. Among them, soybean protein adhesives are The effective substance for bonding is soybean protein. Soybean glue developed by people currently has the problems of low soybean protein content and high moisture content, resulting in a large amount of energy consumption for drying water in the preparation process of wood-based panels, which improves the quality of wood-based panels. The cost of soybean protein is also low, so a water-resistant soybean adhesive is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A water-resistant soybean adhesive, its raw materials include the following components by weight: 40 parts of soybean gum, 10 parts of blood meal, 20 parts of high-gluten flour, 4 parts of ethanol, 2 parts of sulfuric acid, 2 parts of coagulant, urea 4 parts, 4 parts of casein, 1 part of calcium propionate.

[0017] The ethanol concentration is 75%, and the sulfuric acid concentration is 75%.

[0018] The coagulant is formed by mixing magnesium hydroxide, sodium sulfate, and magnesium sulfate, and the mass ratio of the magnesium hydroxide, sodium sulfate, and magnesium sulfate is 1:1:1.

[0019] The weight ratio between urea and casein is 1:1.

[0020] A preparation method of water-resistant soybean adhesive, comprising the following steps:

[0021] S1): First, take 1 part of 0.2% calcium propionate and add it to 10 parts of blood meal, soak the bag containing 10 parts of blood meal in 2% calcium propionate aqueous solution, dry it and then put it into b...

Embodiment 2

[0025] Embodiment 2: A water-resistant soybean adhesive whose raw materials include the following components by weight: 50 parts of soybean glue, 15 parts of blood meal, 30 parts of high-gluten flour, 6 parts of ethanol, 4 parts of sulfuric acid, 4 parts of coagulant, 6 parts of urea parts, 6 parts of casein, 3 parts of calcium propionate.

[0026] The ethanol concentration is 75%, and the sulfuric acid concentration is 75%.

[0027] The coagulant is formed by mixing magnesium hydroxide, sodium sulfate, and magnesium sulfate, and the mass ratio of the magnesium hydroxide, sodium sulfate, and magnesium sulfate is 1:1:1.

[0028] The weight ratio between urea and casein is 1:1;

[0029] A preparation method of water-resistant soybean adhesive, comprising the following steps:

[0030] S1): First get 3 parts of 0.2% calcium propionate and add it to 15 parts of blood meal, soak the bag containing 15 parts of blood meal in 2% calcium propionate aqueous solution, dry it and put it ...

Embodiment 3

[0034] Embodiment three: a kind of water-resistant soybean adhesive, its raw material comprises the following components by weight: 60 parts of soybean gum, 20 parts of blood powder, 40 parts of high-gluten flour, 8 parts of ethanol, 6 parts of sulfuric acid, 6 parts of coagulant, urea 8 parts, 8 parts of casein, 3 parts of calcium propionate.

[0035] The ethanol concentration is 75%, and the sulfuric acid concentration is 75%.

[0036] The coagulant is formed by mixing magnesium hydroxide, sodium sulfate, and magnesium sulfate, and the mass ratio of the magnesium hydroxide, sodium sulfate, and magnesium sulfate is 1:1:1.

[0037] The weight ratio between urea and casein is 1:1.

[0038] A preparation method of water-resistant soybean adhesive, comprising the following steps:

[0039] S1): firstly get 3 parts of 0.2% calcium propionate and add it to 20 parts of blood meal, soak the bag containing 20 parts of blood meal in 2% calcium propionate aqueous solution, dry it and p...

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Abstract

The invention provides a water-resistant soybean adhesive which is prepared from the following raw materials in parts by weight: 40-60 parts of soybean glue, 10-20 parts of blood power, 20-40 parts ofhigh protein flour, 4-10 parts of 75% ethanol, 2-6 parts of 75% sulfuric acid, 2-6 parts of a coagulant, 4-10 parts of urea, 4-10 parts of casein and 1-4 parts of calcium propionate, wherein the coagulant is prepared by mixing magnesium hydroxide, sodium sulfate and magnesium sulfate in a mass ratio of 1: 1: 1, and the weight ratio of urea to casein is 1: 1. By adding urea, casein and blood powder, the water-resistant soybean adhesive has good water resistance. By adding calcium propionate into the blood powder, the water-resistant soybean adhesive has very good mildew resistance and corrosion resistance. The coagulant is matched with the high protein flour in use, so that the adhesive strength of the soybean adhesive can be enhanced.

Description

technical field [0001] The invention relates to the technical field of soybean adhesive preparation, in particular to a water-resistant soybean adhesive and a preparation method thereof. Background technique [0002] Adhesives refer to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesives. The common adhesives on the market include urea-formaldehyde adhesives, protein matrix adhesives, and soybean adhesives. Among them, soybean protein adhesives are The effective substance for bonding is soybean protein. Soybean glue developed by people currently has the problems of low soybean protein content and high moisture content, resulting in a large amount of energy consumption for drying water in the preparation process of wood-based panels, which improves the quality of wood-based panels. The cost of soybean protein is also low, so a water-resistant soybean adhesive is needed. Contents of the invention [0003] The technical problem to ...

Claims

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Application Information

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IPC IPC(8): C09J189/00C09J11/06C09J11/08
Inventor 王景玲
Owner 王景玲
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