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Light fiberboard and preparation thereof

A technology for lightweight fiberboard and slab, applied in the field of lightweight fiberboard, can solve problems such as environmental pollution, and achieve the effects of reducing product cost, low price and simple preparation process

Inactive Publication Date: 2008-07-02
卢洪英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is also to provide a preparation method of lightweight fiberboard, which solves the technical defects such as environmental pollution in the wet preparation of lightweight fiberboard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of lightweight fiberboard, its composition is represented by mass ratio as:

[0035] Poplar (wood) branches 1000kg, polyacrylamide flocculant 1kg, phenolic resin glue 25kg, paraffin 1kg.

[0036] Its preparation method comprises the following steps:

[0037] (1) Slicing of wood materials

[0038] Cut the wood into pieces with a diameter of 3-10cm and a length of 1-3cm;

[0039] (2) Cooking and hot grinding

[0040] Take the wood segment with a moisture content of 30%-50% and put it in a cooking pot to cook into wood fiber, so that the diameter of the wood fiber is 0.1-0.5mm and the length is 1-8mm for later use. If the moisture content of the wood segment is too high or too low, it should be processed first. water content treatment;

[0041] (3) homogeneous pulping

[0042] Add phenolic resin glue and paraffin wax to the homogeneous tank filled with wood fiber, stir for 20-30 minutes, then put the material into the slurry storage well with stirring, and then...

Embodiment 2

[0058] A kind of lightweight fiberboard, its composition is represented by mass ratio as:

[0059] 800kg mixed branches of poplar, willow and sycamore wood (wood), 200kg mixed branches of plow wood, peach wood and pagoda tree, 3kg polyacrylamide flocculant, 30kg phenolic resin glue, 4kg paraffin wax, 15kg aluminum sulfate, commercially available whitening agent VDL 2kg, commercially available reinforcing agent high-strength cellulose 2kg.

[0060] Its preparation method comprises the following steps:

[0061] (1) Slicing of wood materials

[0062] Cut the wood into pieces with a diameter of 3-10cm and a length of 1-3cm;

[0063] (2) Cooking and hot grinding

[0064] Take the wood section with a moisture content of 30%-50% and put it in a cooking pot to cook into wood fibers, so that the diameter of the wood fibers is 0.1-0.5mm and the length is 1-8mm for later use;

[0065] (3) homogeneous pulping

[0066] Add phenolic resin glue, paraffin wax, aluminum sulfate, commercia...

Embodiment 3

[0082] A kind of lightweight fiberboard, its composition is represented by mass ratio as:

[0083] Poplar and willow (wood) mixed branches 700kg, apple wood 300kg, polyacrylamide flocculant 2.5kg, phenolic resin glue 40kg, paraffin wax 5kg, aluminum sulfate 30kg, commercially available whitening agent VDL 3kg, commercially available reinforcing agent high-strength cellulose 3kg.

[0084] Its preparation method comprises the following steps:

[0085] (1) Slicing of wood materials

[0086] Cut the wood into pieces with a diameter of 3-10cm and a length of 1-3cm;

[0087] (2) Cooking and hot grinding

[0088] Take the wood section with a moisture content of 30%-50% and put it in a cooking pot to cook into wood fibers, so that the diameter of the wood fibers is 0.1-0.5mm and the length is 1-8mm for later use;

[0089] (3) homogeneous pulping

[0090] Add phenolic resin glue, paraffin wax, aluminum sulfate, commercially available whitening agent VDL, and commercially available...

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Abstract

The invention discloses an artificial light fiber plate and a preparation method thereof, consisting of cottonwood, willow, platane wood (wood material), fruit trees, locusts, benfite, phenolic-resin glue, wax, aluminum sulphate, whitener and reinforcer. The preparation method comprises the steps of (1) selection and slicing of wood; (2) stewing and hot grinding; (3) material mixing and pulp preparation; (4) forming of slab; (5) secondary dehydration; (6) baking and shaping; (7) coating protection layer on the plate surface (8) grinding and thickness fixing; (9) spraying the protection layer on the back surface of the plate; (10) obtaining a finished light fiber plate through trimming and packaging. The compounded raw material of the invention is easy to be obtained; trees and branches can be taken as main raw material wood; the invention has the advantages of low price, wide source of raw material, low cost of product, having superiority of market competitiveness, reaching the performance level of abroad similar product, simple process of the preparation method, draining no polluted water, no environmental pollution in the whole process, being the improvement of wet-method plate preparation and meeting corresponding requirement of environmental protection.

Description

technical field [0001] The invention relates to a lightweight fiberboard, which belongs to the technical field of artificial boards. Background technique [0002] With the progress of society and the improvement of human awareness of environmental protection, wood-based panels are gradually replacing natural wood in the fields of architectural decoration. Usually wood-based panels generally include high-density boards, medium-density boards and low-density boards (also known as lightweight boards). With the continuous development of construction and decoration technology, the amount of low-density boards is increasing due to its unique properties. The production methods of wood-based panels are divided into two methods: dry method and wet method. Dry method is widely used because of its economy and practicality, energy saving and environmental protection requirements. In the disclosed prior art, the technology for producing high-density boards and medium-density boards is ...

Claims

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Application Information

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IPC IPC(8): B27N3/04B27N1/00B27N1/02B27N3/12B27N3/18B27N7/00
Inventor 卢洪英
Owner 卢洪英
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