Modified soybean-base wood adhesive and preparation method thereof

A wood adhesive and modifier technology, applied in the field of wood adhesives, can solve the problems of high equipment requirements and complex process conditions, and achieve the effects of low equipment requirements, simple process conditions, excellent bonding strength and water resistance

Active Publication Date: 2017-05-31
HUNAN ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical process conditions are complicated, and large-scale production requires high equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Add 120 parts by weight of water and 1 part by weight of sodium dodecylsulfonate to the reaction device, and after raising the temperature to 60° C., slowly add 20 parts by weight of defatted soybean powder, and stir rapidly. After adding, keep warm for 60 minutes. Down to room temperature, obtain soybean protein latex;

[0028] (2) In a container, the triglycidyl p-aminophenol of 15 parts by weight, the triethylenetetramine of 1 part by weight, the glycerin of 10 parts by weight and the alkyl dimethyl ammonium chloride of 1.5 parts by weight are mixed, stirred until completely dissolved, then blended with soybean protein latex, and stirred for 30-60 minutes to obtain the product.

Embodiment 2

[0030] (1) Add 120 parts by weight of water and 1 part by weight of sodium dodecylbenzenesulfonate to the reaction device. After the temperature is raised to 60° C., slowly add 25 parts by weight of defatted soybean powder and stir rapidly. After adding, keep warm for 60 minutes. Down to room temperature, obtain soybean protein latex;

[0031] (2) 20 parts by weight of 4,4-diaminodiphenylmethane tetraglycidylamine, 1 part by weight of m-phenylenediamine, 15 parts by weight of dimethylformamide and 1 part by weight of alkyl Dimethyl ammonium chloride is mixed, stirred until completely dissolved, then blended with soybean protein latex, and stirred for 30-60 minutes to obtain the product.

Embodiment 3

[0033] (1) Add 120 parts by weight of water and 0.5 parts by weight of sodium hydroxide to the reaction device. After the temperature is raised to 60° C., slowly add 30 parts by weight of defatted soybean powder and stir rapidly. After adding, keep warm for 60 minutes. Down to room temperature, obtain soybean protein latex;

[0034] (2) In a container, mix 30 parts by weight of triglycidyl p-aminophenol, 2 parts by weight of triethylenetetramine, 20 parts by weight of ethylene glycol and 1 part by weight of dimethylammonium acetate, and stir until completely dissolved , and then blended with soybean protein latex, stirred for 30-60 minutes to obtain the product.

[0035] In the above-mentioned embodiment 1 to embodiment 3, the defatted soybean flour is processed from the soybean meal remaining by-products after the soybean oil is extracted, and the defatted soybean flour has a fineness of more than 100 mesh and a protein content of more than 50%.

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Abstract

The invention discloses a modified soybean-base wood adhesive and a preparation method thereof. The adhesive is prepared from the following raw materials in parts by weight: 120 parts of water, 10 to 45 parts of degreased bean powder, 0.5 to 2 parts of modifier, 10 to 30 parts of cross-linking agent, 10 to 20 parts of diluting agent, 1 to 3 parts of curing agent and 0. 5 to 2 parts of mildewproof agent. The preparation method comprises the following steps: adding water and the modifier into a reaction apparatus, heating to 60 DEG C, slowly adding the degreased soybean powder, and rapidly stirring at the same time; after the degreased bean powder is added, preserving the heat for 60 minutes, then cooling to the room temperature, thus obtaining soybean albumin glue emulsion; mixing the cross-linking agent, the curing agent, the diluting agent and the mildewproof agent, uniformly stirring until the agents are completely dissolved, then blending with the soybean albumin glue emulsion, and stirring for 30 to 60 minutes, thus obtaining a product. The preparation process is simple, good in controllability, easy in industrialized mass production, free from the emission of formaldehyde, good in bonding strength, and high in water resistance, and an anticorrosion and mildewproof function can be achieved.

Description

technical field [0001] The invention belongs to the field of wood adhesives, in particular to a modified soybean-based wood adhesive mainly used in the production of wood-based panels and decorative wood-based panels and a preparation method thereof. Background technique [0002] With the continuous depletion of petrochemical resources and people's increasing attention to the indoor home decoration environment, the application of the traditional "trialdehyde glue" with formaldehyde as the main raw material is gradually being restricted by the mainstream market. Japan's agriculture and forestry JAS standard implemented the F★★★★ grade requirements for formaldehyde release in 2003, and the California Air Resources Board issued the "Airborne Toxic Control Measure" in 2007, 2011 The United States "Formaldehyde Standards for Composite Wood Act" (Formaldehyde Standards for CompositeWood Act), which came into effect in 2010. The implementation of these laws and regulations reflect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/06C09J11/04
CPCC08K3/22C08K5/00C08K5/42C08K13/02C09J11/04C09J11/06C09J189/00
Inventor 王勇邓腊云范友华陈泽君李志高马芳
Owner HUNAN ACAD OF FORESTRY
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