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Method for using modified soy protein tackiness agent to prepare bamboo fiberboard

A soybean protein and adhesive technology, applied in the direction of flat products, manufacturing tools, pretreatment of molding materials, etc., can solve the problems of fiber agglomeration and felting, blanking, affecting the performance of the board, and achieve excellent performance, uniform sizing, The effect of promoting value-added utilization

Inactive Publication Date: 2008-05-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of fiberboard preparation, due to uneven sizing, it is easy to cause fiber agglomeration and felting, which directly affects the performance of the board
At present, the research on the production process of bamboo fiberboard for soybean protein adhesive is almost blank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, a kind of bamboo fiber board preparation method of modified soybean protein adhesive, carry out following steps successively:

[0027] 1), glue adjustment:

[0028] First add 0.2g sodium hydroxide in every 99.8g of water to prepare a concentration of 0.2% sodium hydroxide solution; then add 1kg polyoxypropylene glyceryl ether as a defoamer in 88kg of the above sodium hydroxide solution, and then use Add 10kg of soybean protein isolate while stirring at a speed of 20kg / h; then stir with an electric mixer at room temperature for 2 hours to dissolve all the soybean protein isolate, and finally add 1kg of potassium sorbate as a preservative, and stir well to obtain 100kg Modified soy protein adhesive.

[0029] 2), sizing:

[0030] Weigh 74.3kg of bamboo fiber with a length of 10-20mm (the amount of dry matter is 66.9kg), put it into the rubber mixing drum, suspend the bamboo fiber in the drum with compressed air, and mix 100kg of modified soybean protein wit...

Embodiment 2

[0032] Embodiment 2, a kind of bamboo fiber board preparation method of modified soybean protein adhesive, carry out following steps successively:

[0033] 1), glue adjustment:

[0034] With embodiment 1, obtain 100kg modified soybean protein adhesive.

[0035] 2), sizing:

[0036] With embodiment 2.

[0037] 3), hot pressing: first adjust the moisture content of the product obtained in step 2) to 25% through a moisture adjustment device to obtain a slab; then pave the slab for hot pressing and curing molding, and set the thickness of the fiberboard to 10mm and the density to 0.60g / cm 3 , the control hot-pressing process conditions are: the hot-pressing temperature is 170°C, the pressure is 7MPa, and the time is 8min; the bamboo fiber board is obtained.

Embodiment 3

[0038] Embodiment 3, a kind of bamboo fiberboard preparation method of modified soybean protein adhesive, carry out following steps successively:

[0039] 1), glue adjustment:

[0040] First add the ratio of 1g sodium lauryl sulfate in every 99g water and be mixed with the sodium lauryl sulfate solution that concentration is 1%; Then add 1kg polyoxypropylene glyceryl ether in 88kg above-mentioned sodium lauryl sulfate solution as Defoamer, then gradually add 10kg of soybean protein isolate, stir with an electric mixer at room temperature for 3 hours to dissolve all the soybean protein isolate; finally add 1kg of potassium sorbate as a preservative, and mix well to obtain 100kg of modified soybean protein adhesive .

[0041] 2), sizing:

[0042] Weigh 74.3kg of bamboo fiber with a length of 10-20mm (the amount of dry matter is 66.9kg), put it into the rubber mixing drum, suspend the bamboo fiber in the drum with compressed air, and mix 100kg of modified soybean protein with a...

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PUM

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Abstract

The invention discloses a bamboo fiberboard manufacturing method adopting a modified soy protein bond. The method includes the following steps: 1) glue mixing: 1 part of polyoxypropylene glycerin ether is added to 88 parts of modified reagent solution, and then 10 parts of soy proteins are added; then the solution is stirred for 2 to 3 hours; then 1 part of potassium sorbate is added as antiseptic and the solution is evenly stirred; 2) gluing: the bamboo fibers and the modified soy proteins are evenly mixed; 3) hot-pressing: a water-content of the acquisition of the step 2) is regulated to 24 to 27 percent to get a plate blank; then the plate blank is hot-pressed for shaping so as to get the bamboo fiber board. The adoption of the method of the invention can realize non-formaldehyde production, thus enhancing the quality level of fiberboard products.

Description

technical field [0001] The invention relates to a preparation process of a bamboo fiberboard with a modified soybean protein adhesive, in particular to a preparation process of an environment-friendly medium density fiberboard, which belongs to the field of wood-based panels. Background technique [0002] Fiberboard has uniform structure, moderate density, smooth surface and good processing performance, so it is widely used in furniture manufacturing and construction. At present, the raw materials widely used in the preparation of fiberboard are wood fiber and urea-formaldehyde resin. However, with the excessive cutting of forest resources, how to ensure sufficient supply of raw materials has become an important social and economic issue. In addition, urea-formaldehyde resin is derived from non-renewable petrochemical resources, and it is easy to release free formaldehyde in a hot and humid environment, which seriously pollutes the environment and endangers human health. W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/04B27N1/00B27N1/02
Inventor 盛奎川吕谷来方坤李永辉
Owner ZHEJIANG UNIV
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