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Preparation method for anti-bending bamboo-wood composite board

A composite board, bamboo and wood technology, applied in the field of building boards, can solve the problems of low bonding strength and poor flexural performance, and achieve the effects of enhancing flexural strength, enriching porosity, and enhancing toughness

Active Publication Date: 2018-02-16
佛山市南海区狮山冠锋木业制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem mainly solved by the present invention is: Aiming at the problems of poor bending resistance and low bonding strength of traditional bamboo-wood composite boards, a preparation method of bending-resistant bamboo-wood composite boards is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] In parts by weight, ball mill 60 parts of bagasse, 20 parts of dry cow dung, and 2 parts of talcum powder to obtain a mixed powder, stir and mix the mixed powder and water at a mass ratio of 1:120 to obtain a culture medium; Add the culture medium and medium into a single-necked flask at a mass ratio of 1:20, stir and mix for 30 minutes under the condition of a rotating speed of 400r / min, then move the single-necked flask into a greenhouse, and cultivate and activate it for 6 hours to obtain a wood rot fungus liquid; After soaking in the wood-rot fungus liquid for 30 minutes, take it out, soak the bamboo strips, put the soaked bamboo strips in the freezer, and freeze them at -15°C for 4 hours to obtain frozen bamboo strips, and place the frozen bamboo strips in the Under room temperature, thaw naturally for 5 days, soak and freeze-thaw cycle 7 times in this way to get pretreated bamboo strips, then soak the pretreated bamboo strips in 20% hydrogen peroxide for 30 minutes...

example 2

[0028] In parts by weight, 60 parts of bagasse, 20 parts of dry cow dung, and 2 parts of talcum powder were ball-milled to obtain a mixed powder, and the mixed powder and water were mixed according to a mass ratio of 1:120 to obtain a culture medium; Soak in 20% hydrogen peroxide for 30 minutes to obtain activated bamboo strips, then place the activated bamboo strips in a vacuum freeze-drying oven to dry for 30 minutes to obtain dry bamboo strips, and then apply adhesive to the dried bamboo strips, the thickness of the glue layer is 3mm, to obtain bamboo strip blanks, the resulting bamboo strip blanks are placed in a hot press molding machine, at a temperature of 130 ° C, and a pressure of 3.2 MPa. After hot pressing for 20 minutes, it is naturally cooled to room temperature, and then cut to obtain a panel; Then place the selected wood in a pulverizer and pulverize it for 30 minutes to obtain wood chips, then soak the wood chips in hydrogen peroxide with a mass fraction of 20% ...

example 3

[0030] In parts by weight, ball mill 60 parts of bagasse, 20 parts of dry cow dung, and 2 parts of talcum powder to obtain a mixed powder, stir and mix the mixed powder and water at a mass ratio of 1:120 to obtain a culture medium; Add the culture medium and medium into a single-necked flask at a mass ratio of 1:20, stir and mix for 30 minutes under the condition of a rotating speed of 400r / min, then move the single-necked flask into a greenhouse, and cultivate and activate it for 6 hours to obtain a wood rot fungus liquid; After soaking in the wood-rot fungus liquid for 30 minutes, take it out, soak the bamboo strips, put the soaked bamboo strips in the freezer, and freeze them at -15°C for 4 hours to obtain frozen bamboo strips, and place the frozen bamboo strips in the Under room temperature, thaw naturally for 5 days, soak and freeze-thaw cycles 7 times to obtain pretreated bamboo strips, then place the pretreated bamboo strips in a vacuum freeze-drying oven to dry for 30 m...

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Abstract

The invention discloses a preparation method for an anti-bending bamboo-wood composite board and belongs to the technical field of construction boards. According to the preparation method for the anti-bending bamboo-wood composite board, wood-destroying fungi and a culture medium are stirred, mixed, cultivated and activated, and a wood-destroying fungus solution is obtained; bamboo splits are soaked in the wood-destroying fungus solution, a freezing and thawing cycle is conducted, and preprocessed bamboo splits are obtained; the bamboo splits are dried, glued, hot-pressed, cooled and cut, andsurface boards are obtained; selected wood is smashed, so that wood chips are obtained; the wood chips are soaked in the wood-destroying fungus solution, taken out and subjected to the freezing and thawing cycle, and preprocessed wood chips are obtained; the preprocessed wood chips are dried, mixed with glue, hot-pressed, cooled and cut, and a block board is obtained; and one surface board, adhesives, the block board, adhesives and the other surface board are assembled, hot-pressed and cooled, and then the anti-bending bamboo-wood composite board is obtained. The bamboo-wood composite board has the excellent anti-bending performance and bonding strength.

Description

technical field [0001] The invention discloses a preparation method of a bending-resistant bamboo-wood composite board, which belongs to the technical field of building boards. Background technique [0002] With the development of the economy and the growth of the population, the human demand for wood and wood products continues to rise; however, due to the reduction of forest resources and the limitation of deforestation, the contradiction between supply and demand of wood has become increasingly prominent. Bamboo has become the preferred raw material for supplementing wood due to its wide distribution, short growth cycle, and good material properties. At present, bamboo resources are relatively abundant, and vigorous development and utilization of bamboo resources is one of the effective ways to alleviate the contradiction between timber supply and demand. Bamboo has high strength, high toughness, and good wear resistance. It has broad application prospects as an engineer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K9/00B27K3/00B27K3/02B27K3/16B27K5/00B27N3/08B27D1/06B27D1/08B32B7/12B32B9/02B32B9/04B32B21/02B32B21/04B32B37/06B32B37/08B32B37/10B32B37/12
CPCB27D1/06B27D1/08B27K3/002B27K3/02B27K3/16B27K5/0005B27K9/002B27K2200/15B27K2240/20B27N3/08B32B7/12B32B9/02B32B9/042B32B21/02B32B21/04B32B37/06B32B37/08B32B37/10B32B37/12B32B2307/54B32B2307/558
Inventor 张文飞殷小祥陈龙
Owner 佛山市南海区狮山冠锋木业制品有限公司
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