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Method for preparing solid wood particleboard of soybean protein adhesive

A soy protein and particle board technology, which is used in the preparation of protein adhesives, adhesive types, animal glue or gelatin, etc., can solve the problems of excessive formaldehyde emission from solid wood particle boards and other problems, and can solve the problem of excessive formaldehyde emission, The effect of low cost and simple process

Inactive Publication Date: 2013-01-30
湖北嘉聚宝森工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a solid wood particle board preparation method of soybean protein adhesive, to solve the problem that the formaldehyde emission of solid wood particle board exceeds the standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Glue adjustment:

[0042] Mix 100 parts of defatted soybean powder with 1200 parts of water evenly, first dissolve with 30 parts of alkali solution with a hydroxide ion concentration of 2mol / L, and then settle and purify 25 parts of an acid solution with a hydrogen ion concentration of 2mol / L to obtain soybean separation protein, then use 3 parts of alkali and anionic surfactant sodium lauryl sulfate to jointly modify it, and then add 0.5% dichlorooctylisothialinone as a preservative to obtain soybean protein adhesive; The above parts are parts by weight;

[0043] (2) Chipping:

[0044] Cut small-diameter wood, branch wood, waste veneer and other wood materials into standard wood chips;

[0045] (3) Planing - drying - sorting:

[0046] The obtained wood chips are sorted and planed to get qualified shavings, and then enter the wet shaving warehouse for storage, and the wet shavings are dried again. After the dried shavings reach a moisture content of 2 to 8%, they...

Embodiment 2

[0054] (1) Glue adjustment:

[0055] Mix 100 parts of defatted soybean powder with 1000 parts of water evenly, first dissolve with 30 parts of alkali solution with a hydroxide ion concentration of 2mol / L, and then settle and purify 25 parts of an acid solution with a hydrogen ion concentration of 2mol / L to obtain soybean separation protein, then use 3 parts of alkali and anionic surfactant sodium lauryl sulfate to jointly modify it, and then add 0.5% dichlorooctylisothialinone as a preservative to obtain soybean protein adhesive; The above parts are parts by weight;

[0056] (2) Chipping:

[0057] Cut small-diameter wood, branch wood, waste veneer and other wood materials into standard wood chips;

[0058] (3) Planing - drying - sorting:

[0059] The obtained wood chips are sorted and planed to get qualified shavings, and then enter the wet shavings warehouse for storage, and then dry the wet shavings. After the dried shavings reach a moisture content of 3-4%, they are sent...

Embodiment 3

[0066] Embodiment 3: (1) glue adjustment:

[0067] Mix 100 parts of defatted soybean powder with 1000 parts of water evenly, first dissolve with 35 parts of alkali solution with a hydroxide ion concentration of 2mol / L, and then settle and purify 30 parts of an acid solution with a hydrogen ion concentration of 2mol / L to obtain soybean separation protein, and then use 6 parts of alkali and anionic surfactant sodium lauryl sulfate to jointly modify it, and then add 0.5% dichlorooctylisothialinone as a preservative to obtain soybean protein adhesive; The above parts are parts by weight;

[0068] (2) Chipping:

[0069] Cut small-diameter wood, branch wood, waste veneer and other wood materials into standard wood chips;

[0070] (3) Planing - drying - sorting:

[0071] The obtained wood chips are sorted and planed to obtain qualified shavings, and then enter the wet shaving warehouse for storage, and the wet shavings are dried again. After the dried shavings reach a moisture con...

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Abstract

The invention discloses a method for preparing a solid wood particleboard of a soybean protein adhesive and solves the problem that the emission of formaldehyde of existing solid wood particleboards exceeds standard. The method includes the following steps that the adhesive is firstly prepared, 100 parts by weight of defatted soybean powders are uniformly mixed with 1000 parts to 1500 parts by weight of water to obtain a mixture, the mixture is firstly dissolved by 30 parts to 35 parts by weight of alkali solution with hydroxide ion concentration of 2mol / L, then the dissolved mixture is sedimentated and purified by 25 parts to 30 parts by weight of acid solution with hydrogen ion concentration of 2mol / L to obtain isolated soybean protein, then the isolated soybean protein is subjected to union modification by 3 parts to 6 parts by weight of alkali or anionic surface active agent lauryl sodium sulfate, then 0.5% (v / v) of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one is added to serve as an antiseptic to obtain the soybean protein adhesive, a wood raw material is subjected to chipping, flaking, drying and sorting, the adhesive is applied, and mat formation, prepressing, hot-pressing, cooling, edge sawing, sanding, grading and putting in storage are performed. The method for preparing the solid wood particleboard of the soybean protein adhesive is simple in process, low in cost and free of emission of formaldehyde.

Description

technical field [0001] The invention relates to a solid wood particle board and a manufacturing method thereof, in particular to a method for preparing a solid wood particle board with a soybean protein adhesive. 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. ...

Claims

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Application Information

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IPC IPC(8): B27N3/02B27N3/10B27N1/00C09J189/00C09J11/06
Inventor 范建华程怡道徐绪刚
Owner 湖北嘉聚宝森工有限责任公司
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