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Composite flakeboard and preparation method thereof

A technology of particleboard and mixed materials, which is applied in the direction of flat products, adhesive types, and other household appliances, can solve the problems of expensive wood resources and limited prices, and achieve mild manufacturing operation conditions, wide sources of raw materials, and reduce The effect of production costs

Inactive Publication Date: 2014-05-21
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] With the development of our country's economy, the demand for wood is increasing day by day, but due to limited wood resources and relatively expensive prices, it is urgent to improve the level of wood utilization and develop high-quality wood substitute materials

Method used

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  • Composite flakeboard and preparation method thereof
  • Composite flakeboard and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Pretreatment of raw materials

[0040] 1) Use a paper cutter to cut the cleaned and dried Tetra Pak into Tetra Pak pieces for later use. The Tetra Pak pieces have a length of 1-5mm and a width of 1-5mm;

[0041] 2) Remove the bark, soil and other impurities in the waste wood chips, and screen out the wood chips with a length of 1-5mm and a width of 1-5mm for future use.

[0042] 2. Raw material mixing

[0043] Mix Tetra Pak chips and wood chips evenly to prepare a particleboard mix, wherein the weight ratio of Tetra Pak chips and wood chips is 4:6.

[0044] 3. Prepare the particle board according to the ordinary particle board production process:

[0045] 1) Glue adjustment

[0046] According to the weight ratio of 100kg of urea-formaldehyde resin, 1kg of ammonium chloride, and 7.1kg of liquid paraffin, prepare the rubber mixing raw materials (all calculated according to the solid content). Among them, the quality indicators of urea-formaldehyde resin (the molar rat...

Embodiment 2

[0058] 1. Pretreatment of raw materials

[0059] 1) Use a paper cutter to cut the cleaned and dried Tetra Pak into Tetra Pak pieces for later use. The Tetra Pak pieces have a length of 2-5mm and a width of 2-5mm;

[0060] 2) Remove the bark, soil and other impurities in the waste wood chips, and screen out the wood chips with a length of 2-5mm and a width of 2-5mm for later use.

[0061] 2. Raw material mixing

[0062] Mix Tetra Pak chips and wood chips evenly to prepare a particle board mixture, wherein the weight ratio of Tetra Pak chips and wood chips is 2:8.

[0063] 3. Prepare the particle board according to the ordinary particle board production process:

[0064] 1) Glue adjustment

[0065] According to the weight ratio of 100kg of urea-formaldehyde resin, 0.9kg of ammonium chloride, and 7kg of liquid paraffin, prepare the raw materials for rubber adjustment (all are calculated according to the solid content). Among them, urea-formaldehyde resin (the molar ratio of ur...

Embodiment 3

[0074] 1. Pretreatment of raw materials

[0075] 1) Use a paper cutter to cut the cleaned and dried Tetra Pak into Tetra Pak pieces for later use. The Tetra Pak pieces have a length of 0.5-5mm and a width of 0.5-5mm;

[0076] 2) Remove the bark, soil and other impurities in the waste wood chips, and screen out the wood chips with a length of 0.5-5mm and a width of 0.5-5mm for future use.

[0077] 2. Raw material mixing

[0078] Mix Tetra Pak chips and wood chips evenly to prepare a particle board mixture, wherein the weight ratio of Tetra Pak chips and wood chips is 3:7.

[0079] 3. Prepare the particle board according to the ordinary particle board production process:

[0080] 1) Glue adjustment

[0081] According to the weight ratio of 100kg of urea-formaldehyde resin, 1.1kg of ammonium chloride, and 7.1kg of liquid paraffin, prepare the raw materials for rubber adjustment (all are calculated according to the solid content). Among them, urea-formaldehyde resin (the molar ...

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Abstract

The invention provides a composite flakeboard and a preparation method thereof. In the method, the flakeboard is formed by mixing and drying waste tetra package scraps, wood flour and an adhesive and then performing thermal pressing processing. The composite flakeboard prepared by the method is high in mechanical property, static bending intensity, elasticity modulus and size stability, and low in thickness swelling rate of water absorption, the static bending intensity and elasticity modulus of the flakeboard even achieve the structure demands of a particle board used under the drying state and accord with the national standards (GB / T 4897.2-2003 the second part of the particle board, the common board demands used under the drying state and the GB / T17657-1999 artificial board and veneer artificial board physical and chemical property test method), the flakeboard prepared by the method is low in cost, the utilization ratio and the additive values of the waste tetra package and timber are improved and environment pollution is reduced.

Description

technical field [0001] The invention relates to a method for preparing a particle board and a particle board prepared by the method, in particular to a method for preparing a particle board from waste materials and the prepared particle board. Background technique [0002] Tetra Pak is a paper-plastic-aluminum seven-layer composite packaging for liquid food. From the outside to the inside, it is polyethylene, cardboard, polyethylene, aluminum foil, viscous plastic and polyethylene. The main component contains 75% long-fiber pulp. 20% plastic and 5% aluminum. These relatively complex structures and components have brought great difficulties to the recycling and reuse of waste Tetra Pak. Tetra Pak has a market share of 95% in my country's beverage packaging market. In 2010, the annual production of Tetra Pak in my country reached 15-20 million tons, and a large number of waste Tetra Pak were produced. With the requirements of sustainable development and the enhancement of pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/08B27N3/02C09J161/24
Inventor 孙晓张求慧吴昭昀王润黎康柳刘靖惠飞飞
Owner BEIJING FORESTRY UNIVERSITY