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Method for producing composite wood board by using waste wood as base material

A composite wood board and wood technology, which is applied in the pretreatment of molding materials, wood processing appliances, household components, etc., can solve problems affecting ecological balance and green and healthy development, shortage of wood resources, and destruction of forest resources. Excellent stability, simple process, and the effect of reducing production costs

Inactive Publication Date: 2015-08-26
王玉燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, excessive utilization, deforestation, land reclamation, cutting without building, resulting in a shortage of timber resources, serious damage to forest resources, etc., will affect the ecological balance and the healthy development of green environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for producing composite wood boards based on waste wood, comprising the following steps: (1) Preparation of wood powder: checking and sorting waste wood, removing impurities in the waste wood, and then making wood powder through a pulverizer, and Put the sawdust powder into the tumble dryer for drying, so that the moisture of the sawdust powder in the tumble dryer is reduced to 8%-12%, the drying time is 30-60min, and the drying temperature is 85°C-100°C. The diameter of the sawdust powder is less than 20 μm, and the length is less than 10 mm; (2), ingredients: add the dried sawdust powder into the mixer, and then add carbon fiber, flame retardant, benzotriazole ultraviolet absorber and wood glue powder in sequence, And wood powder: carbon fiber: flame retardant: benzotriazole UV absorber: wood glue powder mass content ratio is 57%: 10%: 25%: 3%: 5%, and then stir together for 20-50min , to be mixed uniformly before discharging, wherein the carbon fiber is a po...

Embodiment 2

[0020] A method for producing composite wood boards based on waste wood, comprising the following steps: (1) Preparation of wood powder: checking and sorting waste wood, removing impurities in the waste wood, and then making wood powder through a pulverizer, and Put the sawdust powder into the tumble dryer for drying, so that the moisture of the sawdust powder in the tumble dryer is reduced to 8%-12%, the drying time is 30-60min, and the drying temperature is 85°C-100°C. The diameter of the sawdust powder is less than 20 μm, and the length is less than 10 mm; (2), ingredients: add the dried sawdust powder into the mixer, and then add carbon fiber, flame retardant, benzophenone ultraviolet absorber and wood glue powder in sequence, And wood powder: carbon fiber: flame retardant: benzophenone UV absorber: wood glue powder mass content ratio is 74%: 5%: 18%: 1%: 2%, and then stir together for 20-50min , to be mixed uniformly before discharging, wherein the carbon fiber is a polya...

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Abstract

The invention discloses a method for producing a composite wood board by using waste wood as a base material. The method comprises the steps of wood dust and flour preparation, material blending, pressure casting for forming, and cooling, wherein in the step of material blending, the flowing material in mass percentage are added: 57-74% of wood dust and flour, 5-10% of carbon fibers, 18-25% of a flame retardant, 1-3% of an ultraviolet light absorber and 2-5% wood glue powder; the flame retardant is nano magnesium hydroxide of which the surface is subjected to activating treatment with a silane coupling agent. The method has the advantages of being simple in process, efficient, environment-friendly and the like, and uses waste wood as the main raw material, so that the production cost is reduced; obtained products have the advantages of being high in strength, wear-resistant, flame-retardant, good in plasticity, excellent in dimensional stability, and the like, can replace wood to be used in the fields of architectural decoration, furniture and the like, and are durable.

Description

technical field [0001] The invention relates to the technical field of wood recycling, in particular to a method for producing composite wood boards using waste wood as a base material. Background technique [0002] Wood is a renewable, recyclable and naturally degradable green material and biological resource. It has the advantages of beautiful texture, natural color, comfortable texture, good plasticity, and easy processing. It is deeply loved by people and widely used. In interior decoration, furniture manufacturing, housing construction, exterior decoration and other fields. At the same time, excessive utilization, deforestation, land reclamation, cutting without building, resulting in a shortage of timber resources, serious damage to forest resources, etc., will affect the ecological balance and the healthy development of green environmental protection. For this reason, seeking a kind of popular material that can replace wood will become the urgent need of social devel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/18B27N1/00B27N1/02
CPCB27N3/02B27N1/00B27N1/0209B27N3/002B27N3/18
Inventor 不公告发明人
Owner 王玉燕
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