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Protein-radical biogum fiberboard and the manufacturing method thereof

A manufacturing method and technology of biological glue, which are applied in the preparation of animal glue or gelatin, manufacturing tools, protein adhesives, etc., can solve the problems of weak water resistance of modified soybean glue, and the inability of medium density fiberboard to absorb water and the thickness expansion rate. , to achieve the effect of good waterproof effect, strong water resistance and low viscosity

Inactive Publication Date: 2009-10-28
SHANGHAI HONGHAN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with synthetic resin adhesives (such as urea-formaldehyde glue), modified bean glue still has problems such as weak water resistance, and the water-absorbing thickness expansion rate of the produced medium density fiberboard cannot meet the requirements of Chinese national standards.
Therefore, various urea-formaldehyde glue fiberboards are still commonly used at home and abroad, and no company can produce fiberboard products with protein-based bioglue in large quantities and industrially.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The target thickness of the finished board is 18 mm.

[0041] The manufacture method of protein-based bioglue fiberboard comprises the following steps:

[0042] (1) Prepare wet fibers after slicing raw materials, washing or not washing, and heat grinding;

[0043] (2) stirring and mixing the wet fiber prepared in the step (1) with the protein-based bioglue;

[0044] (3) drying the fibers obtained in step (2);

[0045] (4) laying and interweaving the prepared fiber in step (3) into a slab;

[0046] (5) pre-pressing, trimming, and cutting the slab prepared in step (4);

[0047] (6) Hot pressing the prepared slab in step (5), cooling, edge sawing, and sanding to obtain a protein-based bio-glue fiberboard.

[0048] The raw material in the step (1) is a mixture of wood, wheat stalks, straw, cotton stalks, reeds, bean stalks, flax stalks and corn stalks.

[0049] In step (2), the protein-based bioglue (“Doubao” brand formaldehyde-free bioglue), and the amount of glue app...

Embodiment 2

[0054] The target thickness of the finished board is 18mm.

[0055] The preparation method is the same as in Example 1.

[0056]The raw material in the step (1) is a mixture of wood, wheat stalks, straw, cotton stalks, reeds, bean stalks, flax stalks and corn stalks.

[0057] In step (2), a waterproofing agent is added when the wet fiber and the protein-based bioglue are stirred and mixed, the waterproofing agent is paraffin, and the amount of the waterproofing agent added is 1 kg / m3 of finished board.

[0058] In step (2), the protein-based bioglue (“Doubao” brand formaldehyde-free bioglue), and the amount of glue applied is 3%.

[0059] The drying temperature of the fiber in step (3) is 180° C., and the moisture content of the fiber is dried to 10%.

[0060] In step (6), the hot pressing temperature is 220° C., and the hot pressing time is 835 seconds.

[0061] In the step (6), the hot pressing is divided into an initial stage and a constant stage. The hot pressing pressu...

Embodiment 3

[0063] The target thickness of the finished board is 18 mm.

[0064] The preparation method is the same as in Example 1.

[0065] The raw material in the step (1) is a mixture of wood, wheat stalks, straw, cotton stalks, reeds, bean stalks, flax stalks and corn stalks.

[0066] In step (2), the protein-based bioglue (“Doubao” brand formaldehyde-free bioglue), and the amount of glue applied is 35%.

[0067] The drying temperature of the fiber in step (3) is 200° C., and the moisture content of the fiber is dried to 4%.

[0068] In step (6), the hot pressing temperature is 220° C., and the hot pressing time is 1000 seconds.

[0069] In the step (6), the hot pressing is divided into an initial stage and a constant stage. The hot pressing pressure in the initial stage is 30 kgf / cm2, and the hotpressing pressure in the constant stage is 26 kgf / cm2.

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Abstract

The invention relates to a protein-radical biogum fiberboard and a manufacturing method thereof. As the protein radical biogum fiberboard adopts formaldehyde-free protein radical biogum as an adhesive, the formaldehyde emission is far less than that of board products manufactured by urea-formaldehyde glue or phenolic glue. The advanced manufacturing method ensures that the boards produced have excellent hydrolytic resistance and can effectively avoid phenomenon of delamination or barbotage of the boards.

Description

technical field [0001] The invention relates to a protein-based biological glue fiberboard and a manufacturing method thereof, belonging to the field of artificial board manufacturing. Background technique [0002] Because traditional fiberboard uses synthetic resin adhesives (such as urea-formaldehyde glue, phenolic glue) to bond fibers, the product often has the problem of excessive formaldehyde, which poses a huge threat to human health. For this reason, in recent decades, many countries have vigorously carried out research on protein-based bio-glue fiberboards to replace traditional synthetic resin fiberboards. However, due to the problems of low bonding strength, poor water resistance, and low anti-microbial degradation ability of protein-based adhesives, it cannot meet the requirements of industrial applications well, hindering its promotion. Therefore, how to develop protein-based bioglue with good performance has always been the focus of research in this field. [...

Claims

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Application Information

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IPC IPC(8): B27N3/04B27N1/02B27N1/00B27N3/08C09J189/00
Inventor 杨光杨波
Owner SHANGHAI HONGHAN CHEM TECH
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