Layered silicate reinforced soybean adhesive, its preparation method and application

A layered silicate, soybean adhesive technology, applied in the preparation of animal glue or gelatin, adhesives, adhesive additives, etc., can solve the problems of poor initial viscosity of soybean adhesives, increase the force, improve The effect of bond strength and water resistance

Active Publication Date: 2012-06-27
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a layered silicate-reinforced soybean adhesive, which not only solves the problem of poor initial viscosity of the existing soybean adhesive, but also improves the bonding strength and water resistance of the soybean adhesive

Method used

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  • Layered silicate reinforced soybean adhesive, its preparation method and application
  • Layered silicate reinforced soybean adhesive, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Add 100g of water and 0.35g of sodium hydroxide to a 500mL three-necked bottle to prepare a sodium hydroxide solution, then add 0.3g of sodium montmorillonite (purchased from Zhejiang Fenghong Clay Chemical Co., Ltd., cationic Exchange capacity is 0.9mmol / g), stirred for 10 minutes, dispersed uniformly to obtain a mixed solution; then added 15 grams of soybean protein isolate (purchased in Guangzhou Haisha Biotechnology Co., Ltd., protein weight percentage is 90% ), and stirred for 30 minutes until the soybean protein isolate was completely dispersed in water to obtain a layered silicate-enhanced soybean adhesive.

[0039] The prepared phyllosilicate-reinforced soybean adhesive was used to bond three-layer poplar boards, and the dry strength and wet strength were tested, and the dry strength and wet strength were measured to be 2.32MPa and 0.86MPa, respectively.

Embodiment 2

[0041] Add 100g of water and 3g of urea into a 500mL three-necked bottle to prepare a urea solution, and then add 0.15g of sodium-based montmorillonite (purchased from Zhejiang Fenghong Clay Chemical Co., Ltd., with a cation exchange capacity of 0.9mmol / g) to the urea solution. ), stirred for 10 minutes, dispersed evenly, and obtained a mixed solution; then added 15 grams of soybean protein isolate (purchased in Guangzhou Haisha Biotechnology Co., Ltd., protein weight percentage is 90%) in the mixed solution, stirred for 30 minutes until soybean The protein isolate is completely dispersed in water to obtain a soy adhesive reinforced with layered silicates.

[0042] The prepared phyllosilicate-reinforced soybean adhesive was used to bond three-layer poplar boards, and the dry strength and wet strength were tested, and the dry strength and wet strength were measured to be 2.46MPa and 0.95MPa, respectively.

Embodiment 3

[0044] Add 100g of water and 3g of urea in a 500mL three-necked bottle to prepare a urea solution, then add 0.15g of organic montmorillonite (purchased from Zhejiang Fenghong Clay Chemical Co., Ltd., product brand DK5) to the urea solution, stir for 10 minutes, Disperse evenly to obtain a mixed solution; then add 15 grams of soybean protein isolate (purchased from Guangzhou Haisha Biotechnology Co., Ltd., protein weight percentage is 90%) to the mixed solution, and stir for 30 minutes until the soybean protein isolate is completely dispersed in water , to obtain phyllosilicate-reinforced soybean adhesives.

[0045] The prepared phyllosilicate-reinforced soybean adhesive was used to bond three-layer poplar boards, and the dry strength and wet strength were tested, and the dry strength and wet strength were measured to be 2.53MPa and 1.05MPa, respectively.

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Abstract

The invention discloses a layered silicate reinforced soybean adhesive, comprising 100 weight parts of water, 10-50 weight parts of soybean derivative, 0.1-10 weight parts of modifier, and 0.1-10 weight parts of layered silicate. The soybean adhesive disclosed herein comprises no formaldehyde as a raw material, thus the soybean adhesive belongs to an environmentally friendly adhesive. By using the modifier and layered silicate to modify soybean protein in the soybean derivative, the initial adhesion is raised, and simultaneously the bonding intensity and water resistance of the soybean adhesive are raised. The soybean adhesive is especially suitable for being used as a timber adhesive. The invention further provides a preparation method of the layered silicate reinforced soybean adhesive.The method has the advantages of simple preparation, good controllability, and low production cost, is easy to operate and is easy to industrialize, has good economic benefits, is beneficial for popularization and application, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of adhesive and its preparation, in particular to a layered silicate reinforced soybean adhesive, its preparation method and application. Background technique [0002] In 2009, the output of wood-based panels in my country exceeded 100 million cubic meters for the first time, and the production of wood-based panels requires the use of a large amount of adhesives. Wood adhesives on the market are mainly "trialdehyde glue" (urea-formaldehyde glue, phenolic glue, melamine-formaldehyde glue). It is estimated that the output of "trialdehyde glue" in my country in 2008 was 5.66 million tons. The raw materials of "trialdehyde glue" come from petroleum and other chemical products, and the resources are limited and non-renewable; in addition, the glued products of this kind of adhesive will release the first type of carcinogen free aldehyde during the production and use process, which is easy to cause people Breathing discomf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/04
Inventor 桂成胜朱锦刘小青吴頔
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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