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Flame-retardant low-voc particle board and preparation method thereof

A particleboard and particle technology, which is applied in the field of flame-retardant and low-VOC particleboard and its preparation, achieves the effects of excellent fire resistance, simple production process and high promotion value

Active Publication Date: 2019-11-15
英杰惠能(北京)能源新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultra-low VOC and flame retardant particleboard production technology is currently blank. In the traditional wood particleboard field, isocyanate, phenolic resin, melamine formaldehyde resin and organic flame retardants or compound flame retardants are used to prepare functional particleboards. , Flame-retardant, mildew-proof, and moisture-proof functions of the particleboard preparation technology has basically no literature reports

Method used

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  • Flame-retardant low-voc particle board and preparation method thereof
  • Flame-retardant low-voc particle board and preparation method thereof
  • Flame-retardant low-voc particle board and preparation method thereof

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preparation example Construction

[0028] The preparation method of flame-retardant low-VOC particleboard of the present invention comprises:

[0029] Mixing moso bamboo with miscellaneous bamboos to obtain mixed bamboo chips, said miscellaneous bamboos including any one or any combination of two or three kinds of bamboos in Cizhu, mottled bamboo, and palm bamboo, the mass ratio of moso bamboo and miscellaneous bamboos is 1: 0 to 3:1 range,

[0030] or,

[0031] Mixing eucalyptus with miscellaneous wood to obtain mixed wood, said miscellaneous wood including poplar, fruit wood, pine wood or any combination of two or three combinations, the mass ratio of eucalyptus and miscellaneous wood is 1 : 0 to 3:1 range;

[0032] Chipping and planing the mixed bamboo chips or wood to obtain shavings;

[0033] Drying the shavings so that the moisture content of the shavings is within the range of 6% to 16%;

[0034] Use the secondary cyclone separator to sort the dried shavings, and use the water curtain dust removal me...

Embodiment 1

[0064] Embodiment 1: Take eucalyptus as raw material, press thickness 12.0mm, density 820kg / m 3 Floor type wood-based particleboard. The process steps are as follows: first chip the eucalyptus raw material to obtain wood chips with a length of 30 mm, a width of 20 mm and a thickness of 3 mm, and then obtain wood shavings by shaving. The wood shavings are dried by a roller drier for 0.5min until the moisture content reaches 15%, and then enter the secondary cyclone separation system, and go through the water curtain dust removal system to remove smoke and large particle shavings. The shavings from the secondary cyclone separator are mechanically separated and enter the rubber mixing system of the surface core layer respectively. At the same time, flame retardant resin is added (ratio of glyoxal: melamine: dicyandiamide: ammonium phosphate: ammonia = 3.5 : 1.8: 0.6: 1.2: 0.3) and enhancer (mass ratio montmorillonite: urotropine: attapulgite powder: magnesium chloride powder: ma...

Embodiment 2

[0065] Embodiment 2: Take moso bamboo: miscellaneous bamboo=mass ratio 3:1 as raw material, press thick 12.0mm, density 1000kg / m 3 Floor type bamboo particleboard. The process steps are as follows: the raw materials are chipped first to obtain bamboo chips with a length of 30mm, a width of 20mm and a thickness of 3mm, and then bamboo shavings are obtained by shaving. The bamboo shavings are dried by a roller dryer for 0.6min, and the dry moisture content reaches 14%, and then enter the secondary cyclone separation system. After the smoke and dust are treated in the wet spray tower, the smoke and large particles of wood shavings are removed by the electrostatic precipitator system. The bamboo shavings from the secondary cyclone separator are mechanically separated and enter the surface core layer glue mixing system respectively. At the same time, flame-retardant resin (the amount of the substance is more 3.3: 2.0: 0.6: 1.4: 0.5) and enhancer (mass ratio montmorillonite: urotro...

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Abstract

The invention relates to a flame-retarded low-VOC shaving board and a preparation method thereof. The preparation method comprises the steps that a moso bamboo and a sundry bamboo are mixed to obtain a mixed bamboo chip, or a gum wood and a weedtree are mixed to obtain mixed wood; bamboo shavings or wood shavings are obtained; the bamboo shavings which are subjected to drying treatment are separated by utilizing a secondary cyclone separator, the bamboo shavings or the wood shavings which are subjected to the drying treatment are mixed with flame-retarded resin and a reinforcing agent and then second resin is added to be mixed, a paver or an air-flowing type paver conducts layered paving, forming is achieved through a performer after paving is conducted, and the bamboo shaving board is formed through pressing after forming is achieved. The flame-retarded low-VOC shaving board comprises the bamboo shavings or the wood shavings, the flame-retarded resin, the reinforcing agent and the second resin. According to the flame-retarded low-VOC shaving board and the preparation method thereof, a traditional production technology of the bamboo-based or the wood-based shaving board is broken through, recombination is conducted on bamboo-based or wood-based shaving reinforcing materials, and the ultralow VOC releasing and flame-retarded properties are given to the novel bamboo-based or wood-based shaving board.

Description

technical field [0001] The invention relates to the field of wood processing, in particular to a flame-retardant low-VOC particleboard and a preparation method thereof. Background technique [0002] Particleboard is formed by hot pressing of shavings with an adhesive. The traditional product adopts surface core layer gradient structure pavement and assembly. It has excellent physical and chemical properties and is easy to process, so it is favored by people. With the advancement of science and technology, derivative series products and deep-processing varieties of particleboard continue to appear and improve, and various functional particleboards are gradually applied in various fields of the national economy. [0003] Particleboard production is inseparable from adhesives. At present, urea-formaldehyde resin adhesives account for more than 90% of the total glue used in the production of particleboard industry, but the defect of urea-formaldehyde resin is that it is not res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/00B27N3/10B27L11/06
CPCB27L11/06B27N3/002B27N3/10
Inventor 纪良罗桂平陈明牛志刚
Owner 英杰惠能(北京)能源新技术有限公司
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