Environment-friendly high-strength bamboo-wood compound shaving board

A bamboo-wood composite and particleboard technology, which is used in wood processing appliances, pretreatment of molding materials, household components, etc., can solve the influence of composite particleboard water absorption expansion rate and formaldehyde emission index, static bending strength and density. The impact is not significant , the strength of the composite particleboard has no obvious effect, etc., to achieve the effect of reducing the amount of glue, reducing the amount of formaldehyde released, and the process of environmental protection

Inactive Publication Date: 2016-03-02
丁芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It shows that increasing the amount of glue used has no obvious effect on improving the strength of composite particleboard. Although it can significantly reduce the water swelling rate, it will also lead to a significant increase in the formaldehyde emission index.
The results of variance analysis show that factor B (glue amount) has no significant effect on the internal bonding strength, static bending strength and density of bamboo-wood composite particleboard, but it significantly affects the water absorption expansion rate and formaldehyde emission index of composite particleboard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The production method of environment-friendly high-strength bamboo-wood composite particle board, its steps are as follows:

[0019] (1) Preparation of raw materials: first mechanically pulverize the bamboo raw materials (bamboo tips, bamboo chips, bamboo shavings and other bamboo product processing waste), put in a biological enzyme treatment agent 20 times the weight of bamboo fiber, and heat-preserve and impregnate at 38°C Dry after about 1.5 hours, then mix the wood and bamboo raw materials evenly according to the weight ratio of 1:1, sort after drying, the wood and bamboo shavings in the core layer are 0.3mm, and the surface shavings are finely ground to <0.1mm;

[0020] The dosage of described biological enzyme treatment agent is laccase dosage: 10U / g bamboo fiber, galactosidase dosage: 1U / g bamboo fiber;

[0021] (2) Compression of particleboard: Use low molar ratio environmental protection urea-formaldehyde resin glue with a molar ratio of 1.0 to sizing with agi...

Embodiment 2

[0027] The production method of environment-friendly high-strength bamboo-wood composite particle board, its steps are as follows:

[0028] (1) Preparation of raw materials: first mechanically pulverize the bamboo raw materials (bamboo tips, bamboo chips, bamboo shavings and other bamboo product processing waste), put in a biological enzyme treatment agent 20 times the weight of bamboo fiber, and heat-preserve and impregnate at 38°C Dry after about 2.5 hours, then mix the wood and bamboo raw materials evenly according to the weight ratio of 1:1, sort after drying, the wood and bamboo shavings in the core layer are 0.3mm, and the surface shavings are finely ground to <0.1mm;

[0029] The dosage of described biological enzyme treatment agent is laccase dosage: 8U / g bamboo fiber, galactosidase dosage: 1.3U / g bamboo fiber;

[0030] (2) Compression of particleboard: Use low molar ratio environmental protection urea-formaldehyde resin glue with a molar ratio of 1.0 to sizing with ag...

Embodiment 3

[0036] The production method of environment-friendly high-strength bamboo-wood composite particle board, its steps are as follows:

[0037] (1) Preparation of raw materials: first mechanically pulverize the bamboo raw materials (bamboo tips, bamboo chips, bamboo shavings and other bamboo product processing waste), put in a biological enzyme treatment agent 20 times the weight of bamboo fiber, and heat-preserve and impregnate at 38°C Dry after about 2.0 hours, then evenly mix the wood and bamboo raw materials according to the weight ratio of 1:1, sort after drying, the wood and bamboo shavings in the core layer are 0.3mm, and the surface shavings are finely ground to <0.1mm;

[0038] The dosage of described biological enzyme treatment agent is laccase dosage: 9U / g bamboo fiber, galactosidase dosage: 1.2U / g bamboo fiber;

[0039] (2) Compression of particleboard: Use low molar ratio environmental protection urea-formaldehyde resin glue with a molar ratio of 1.0 to sizing with ag...

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Abstract

The invention discloses an environment-friendly high-strength bamboo-wood compound shaving board. An anti-corrosion step of bamboo fibers is omitted. Laccase of 8-10 U/g of bamboo fibers and galactosidase of 1-1.3 U/g of bamboo fibers are adopted to be preserved at a specific temperature for a certain period, proper high-temperature treatment is conducted after pressing is conducted, the bamboo fibers can be modified effectively, high intensity is kept while the use amount of glue is reduced, and the board is more resistant to abrasion and more durable. The environment-friendly high-strength bamboo-wood compound shaving board has the effects that the static bending intensity ranges from 26.1 MPa to 28.6 MPa, the internal bonding strength ranges from 1.21 MPa to 1.30 MPa, the free formaldehyde emission ranges from 2.4 mg to 2.6 mg per 100 g, and the water absorption expansion rate ranges from 4.1% to 4.6%.

Description

technical field [0001] The invention relates to an environment-friendly high-strength bamboo-wood composite particleboard and a production process thereof, belonging to the field of bamboo-wood processing. Background technique [0002] Bamboo-wood composite materials refer to composite boards or squares made of bamboo and wood combined and glued in the same or different structural units. It has various forms, such as bamboo-wood composite plywood, bamboo-wood composite laminated lumber, Bamboo-wood composite particleboard and medium-density fiberboard, directional bamboo strips, etc. From the perspective of material classification, it is mainly divided into two categories: structural bamboo-wood composite materials and functional bamboo-wood composite materials. Among them, structural bamboo-wood composite materials are mainly used for engineering structural parts; functional bamboo-wood composite materials are mainly used for decoration and furniture production. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/10B27N3/18B27N1/00B27N1/02
CPCB27N3/02B27N1/00B27N1/0209B27N3/10B27N3/18
Inventor 丁芬
Owner 丁芬
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