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Soy protein adhesive and glued board, and preparation methods thereof

A soybean protein and adhesive technology, which is applied in the preparation of protein adhesives, animal glue or gelatin, and adhesives, etc., can solve the problems of limiting the improvement of the quality of solid wood particle boards, excessive formaldehyde emission, and endangering health. The formaldehyde emission exceeds the standard, the mechanical strength and water resistance are improved, and the movement resistance is small.

Active Publication Date: 2019-10-22
湖北金汉智能家居有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a prominent problem in the current production of solid wood particle boards: the amount of formaldehyde released exceeds the standard, which limits the improvement of the quality of domestic solid wood particle boards
This is mainly due to the fact that most of the auxiliary materials for the production of solid wood particle boards currently use trialdehyde glue, and the products produced continuously release formaldehyde during use, which not only pollutes the environment, but also endangers people's health.

Method used

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  • Soy protein adhesive and glued board, and preparation methods thereof
  • Soy protein adhesive and glued board, and preparation methods thereof
  • Soy protein adhesive and glued board, and preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. The soybean protein adhesive of the present embodiment is made from the following raw materials in parts by weight:

[0022]

[0023]

[0024] 2. Preparation of plywood

[0025] Step 1. Prepare the soybean protein adhesive: according to the above ratio, mix the defatted soybean powder and water evenly, dissolve the aluminum hydroxide alkali, add malic acid, glutamic acid, dodecylbenzenesulfonic acid, and dispersant in sequence , and modify it by stirring and mixing to obtain the soybean protein adhesive.

[0026] Step 2, cutting the wood raw material into wood chips of required specifications;

[0027] Step 3, after sorting the obtained wood chips and planing out qualified shavings, drying until the shavings reach a moisture content of 5%, and shaving the core layer to obtain core layer particles;

[0028] Step 4. Spray glue on the obtained core layer particles. When spraying glue, add the soybean protein adhesive of 5% of the weight of the wood raw material,...

Embodiment 2

[0032] 1. The soybean protein adhesive of the present embodiment is made from the following raw materials in parts by weight:

[0033]

[0034]

[0035] 2. Preparation of plywood

[0036] Step 1. Prepare the soybean protein adhesive: according to the above ratio, mix the defatted soybean powder and water evenly, dissolve the aluminum hydroxide alkali, add malic acid, glutamic acid, dodecylbenzenesulfonic acid, and dispersant in sequence , and modify it by stirring and mixing to obtain the soybean protein adhesive.

[0037] Step 2, cutting the wood raw material into wood chips of required specifications;

[0038] Step 3, after sorting the obtained wood chips and planing qualified shavings, drying until the shavings reach a moisture content of 2%, and shaving the core layer to obtain core layer particles;

[0039] Step 4. Spray glue on the obtained core layer particles. When spraying glue, add the soybean protein adhesive of 1% of the weight of the wood raw material, the...

Embodiment 3

[0043] 1. The soybean protein adhesive of the present embodiment is made from the following raw materials in parts by weight:

[0044]

[0045]

[0046] 2. Preparation of plywood

[0047] Step 1. Prepare the soybean protein adhesive: according to the above ratio, mix the defatted soybean powder and water evenly, dissolve the aluminum hydroxide alkali, add malic acid, glutamic acid, dodecylbenzenesulfonic acid, and dispersant in sequence , and modify it by stirring and mixing to obtain the soybean protein adhesive.

[0048] Step 2, cutting the wood raw material into wood chips of required specifications;

[0049] Step 3, after sorting the obtained wood chips and planing out qualified shavings, drying until the shavings reach a moisture content of 8%, and shaving the core layer to obtain core layer particles;

[0050] Step 4. Spray glue on the obtained core layer particles. When spraying glue, add the soybean protein adhesive of 10% of the weight of the wood raw material...

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Abstract

The invention discloses a soybean protein adhesive. The soybean protein adhesive comprises, by weight, 100 parts of defatted soybean powder, 1600-2000 parts of water, 15-25 parts of a low water-soluble alkali, 5-10 parts of a dispersant, 8-12 parts of dodecylbenzene sulfonic acid, 10-15 parts of malic acid and 5-9 parts of glutamic acid. The present invention also provides a preparation method ofthe soybean protein adhesive, and further provides a glued board prepared by using the soybean protein adhesive. The raw material formula of the soybean protein adhesive is scientific and reasonable,the surface bonding strength, the internal bonding strength and the bending elastic modulus of the prepared glued board are obviously increased, and the 24 h water absorption thickness expansion ratiois greatly reduced; and other properties of the glued board meet the requirements of national standards, and the formaldehyde release amount is equal to or less than 0.1 mg / 100 g, so the problem thatthe formaldehyde release amount of solid wood particle board exceeds a standard is well solved.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a soybean protein adhesive, plywood and a preparation method thereof. Background technique [0002] In recent years, solid wood particle board has developed rapidly due to its low production energy consumption, good dimensional stability and easy nailing. It is widely used in furniture, decoration, building materials and kitchen industries. However, there is a prominent problem in the current production of solid wood particle boards: the amount of formaldehyde released exceeds the standard, which limits the improvement of the quality of domestic solid wood particle boards. This is mainly because most of the auxiliary materials for the production of solid wood particle boards currently use trialdehyde glue, which continuously releases formaldehyde during use, which not only pollutes the environment, but also endangers people's health. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/04C09J11/06B27D1/04B27D1/08
CPCB27D1/04B27D1/08C08K2003/2206C08K2003/222C08K2003/2224C08K2003/2227C09J11/04C09J11/06C09J189/00C08K13/02C08K5/092C08K5/42C08K5/175C08K3/22
Inventor 程辉
Owner 湖北金汉智能家居有限公司
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