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A kind of water-resistant soybean adhesive and preparation method thereof

A technology of soybean adhesive and soybean glue, which is applied in the preparation of adhesive, animal glue or gelatin, adhesive type, etc., can solve the problems of increasing the cost of wood-based panels, poor solubility, high moisture content, etc., to reduce cost input, Effect of improving hydrophobicity and promoting industrialization

Inactive Publication Date: 2019-09-06
南宁市邦得力木业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively high molecular weight of soybean globulin and poor solubility, the soybean gum currently developed by people 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 production process of wood-based panels. The cost of wood-based panels, the utilization rate of soybean protein is also low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A water-resistant soybean adhesive comprises the following raw materials in parts by weight: 35 parts of soybean gum, 30 parts of high-gluten flour, 5 parts of ethanol, 3 parts of sulfuric acid, 3 parts of sodium chloride and 7 parts of pigment.

[0030] The preparation method of described water-resistant soybean adhesive comprises the following steps:

[0031] S1: Take raw materials: soybean gum, high-gluten flour, ethanol, sulfuric acid, sodium chloride, pigment, set aside;

[0032] S2: Take high-gluten flour, add water in a ratio of 1:8, stir, put it in a 75°C water bath, add 75% sulfuric acid dropwise, and place it at a constant temperature of 60°C to obtain glue A, which is set aside;

[0033] S3: Take soybean gum, heat it in a water bath, the temperature does not exceed 65°C, keep stirring, and spray 75% ethanol while standing at room temperature for 1 min, add the A glue prepared in step S2, mix and stir to obtain B glue;

[0034] S4: Add sodium chloride to the ...

Embodiment 2

[0036] A water-resistant soybean adhesive comprises the following raw materials in parts by weight: 30 parts of soybean gum, 25 parts of high-gluten flour, 3 parts of ethanol, 2 parts of sulfuric acid, 2 parts of sodium sulfate, and 5 parts of pigment.

[0037] The preparation method of described water-resistant soybean adhesive comprises the following steps:

[0038] S1: Take raw materials: soybean gum, high-gluten flour, ethanol, sulfuric acid, sodium sulfate, pigment, and set aside;

[0039] S2: Take high-gluten flour, add water at a ratio of 1:8, stir, place in a water bath at 80°C to heat, add 75% sulfuric acid dropwise, keep the temperature down to 55°C, and place it at a constant temperature to obtain glue A for later use;

[0040] S3: Take soybean gum, heat it in a water bath, the temperature does not exceed 65°C, continue to stir, and spray 75% ethanol while standing at room temperature for 56 seconds, add the A glue prepared in step S2, mix and stir to obtain B glue;...

Embodiment 3

[0043] A water-resistant soybean adhesive comprises the following raw materials in parts by weight: 50 parts of soybean gum, 30 parts of high-gluten flour, 8 parts of ethanol, 4 parts of sulfuric acid, 3 parts of sodium chloride and 9 parts of pigment.

[0044] The preparation method of described water-resistant soybean adhesive comprises the following steps:

[0045] S1: Take raw materials: soybean gum, high-gluten flour, ethanol, sulfuric acid, sodium chloride, pigment, set aside;

[0046] S2: Take high-gluten flour, add water at a ratio of 1:8, stir, place in a 60°C water bath to heat, add 75% sulfuric acid dropwise, and place at a constant temperature of 60°C to obtain glue A for use;

[0047] S3: Take soybean gum, heat it in a water bath, the temperature does not exceed 65°C, continue to stir, and spray 75% ethanol while standing at room temperature for 48 seconds, add the A glue prepared in step S2, mix and stir to obtain B glue;

[0048] S4: Add sodium chloride to the ...

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PUM

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Abstract

The invention provides a waterproof soybean adhesive. The waterproof soybean adhesive contains the following raw materials in parts by weight: 30-50 parts of soybean glue, 2-3 parts of accelerator, 5-9 parts of pigment, 25-30 parts of strong flour, 3-8 parts of alcohol and 2-4 parts of sulfuric acid. The soybean adhesive provided by the invention is prepared in the manner of gelling the strong flour and the soybean glue and then adding the pigment and the accelerator. The waterproof soybean adhesive provided by the invention is free from harmful gas emission, not only can greatly reduce the monitoring cost of the harmful materials but also has an obvious promoting effect for the viscosity and waterproof property of the original soybean adhesive.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a water-resistant soybean adhesive and a preparation method thereof. Background technique [0002] Adhesive refers to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesive. It has the characteristics of continuous stress distribution, light weight, or sealing, and most of the process temperature is low. Common adhesives on the market are urea-formaldehyde adhesives. , epoxy resin glue, protein matrix glue, soybean adhesive; among them, the effective substance that plays a bonding role in soybean adhesive or soybean protein adhesive is soybean protein, and soybean protein is mainly composed of 11S and 7S globulin composition (KUMARA R., CHOUDHARYV., MISHRA S., VARMA I.K., MATTIASON B. Adhesives and plastics based on soy protein products. Industrial Crops and Products, 2002, 16(3): 155-172) . Due to the relatively high molec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J199/00C08H1/00C08H99/00
Inventor 颜锡富
Owner 南宁市邦得力木业有限责任公司