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Reed particle board and preparation method thereof

A technology of particleboard and shavings, which is applied in the field of reed particleboard and its preparation, can solve problems such as poor penetration, differences in production process and product quality, and difficulty in gluing, so as to achieve environmental protection and improve moisture-proof performance, reduce production costs, and achieve no solid waste The effect of emissions

Active Publication Date: 2017-10-13
盘锦积葭生态板业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of reed is still different from that of wood. Its epidermis is covered with a layer of tissue with a high degree of silicification and resinization. Conventional urea-formaldehyde and phenolic resin glues have poor penetration into this layer of film, and it is difficult to form an effective glue. , so there are certain differences in the production process and product quality

Method used

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  • Reed particle board and preparation method thereof

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preparation example Construction

[0019] The preparation method of the reed particle board that the present invention proposes comprises the following steps:

[0020] (1) The reed is rolled and cut to obtain a reed section with a theoretical length of about 35 mm. The reed section is purified by mechanical screening and airflow sorting, and the wet shavings of the reed are obtained after removing impurities in the reed section, and the wet shavings of the reed are obtained. The water content is 15% to 20%, and the removed impurities are used as fuel to burn to generate heat for use in steps (3) and (7); impurities include reed pith and reed flowers, etc., and the removal rate of impurities is more than 98%.

[0021] (2) The wet reed shavings of the above step (1) are classified and screened, and the qualified wet reed shavings with a thickness of 2 to 3 mm are screened out, and the unsplit or incompletely split tubular reed wet shavings are removed as fuel and burned Generate heat for use in steps (3) and (7);...

Embodiment 1

[0032]The reeds are rolled and cut to obtain reed segments with a length of about 35mm, and the reed segments are purified by mechanical screening and airflow sorting to remove more than 98% of impurities in the reed segments, and wet reed shavings with a moisture content of 15% are obtained . The wet reed shavings are classified and screened, and the unsplit or incompletely split tubular wet reed shavings are removed as fuel, and the qualified wet reed shavings with a thickness of 2-3mm are screened out. Dry the qualified reed shavings, the temperature of the drying heat medium is 450°C, make the moisture content 5%, and make dry shavings, use 0.2×0.2mm, 1.4×1.4mm, 10.0×10.0mm three-layer mesh screen to dry the dry shavings Screening is carried out to obtain surface shavings and core shavings respectively. Add polyphenylpolymethylene isocyanate adhesive (viscosity at 20°C is 150mPa·s) to the surface shavings and the core shavings respectively, and the mass ratio of the adhes...

Embodiment 2

[0034] The reeds are rolled and cut to obtain reed segments with a length of about 35mm, and the reed segments are purified by mechanical screening and airflow sorting to remove more than 98% of impurities in the reed segments to obtain wet reed shavings with a moisture content of 20%. . The wet reed shavings are classified and screened, and the unsplit or incompletely split tubular wet reed shavings are removed as fuel, and the qualified wet reed shavings with a thickness of 2-3mm are screened out. Dry the qualified reed shavings, the temperature of the drying heat medium is 550°C, and the moisture content is 1%, and the dry shavings are made into dry shavings. Screening is carried out to obtain surface shavings and core shavings respectively. Dicyclohexylmethane diisocyanate adhesive (viscosity at 20°C is 250mPa·s) was added to the surface shavings and the core shavings respectively, and the mass ratio of the adhesive was: surface shavings:adhesive=1:0.03 , Core shavings: ...

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Abstract

The invention relates to a reed particle board and a preparation method thereof and belongs to the technical field of production of novel straw artificial boards. According to the reed particle board and the preparation method thereof, according to the physical characteristics of reeds, wood shavings of the reed particle board are sorted according to different specifications, and by means of optimized configuration of surface layer wood shavings and core layer wood shavings, the board excellent in mechanical performance is obtained; and by adding an environment-friendly adhesive of poly-phenyl poly-methylene isocyanate or derivatives of the poly-phenyl poly-methylene isocyanate, the environment friendliness and the anti-moisture performance of the board are made to be substantially improved, and the board can be well applied in the fields of furniture production, indoor and outdoor decoration, packaging materials and the like. According to the reed particle board and the preparation method thereof, waste materials generated in the mechanical screening process of the reeds, the airflow impurity separating process and the production process, and rough reed particle board sanding powder serve as fuel to be combusted so as to be used as reed wood shaving drying and board blank hot pressing energy, the production cost is substantially reduced, solid-waste-free emission is achieved, and clean production is facilitated.

Description

technical field [0001] The invention relates to a reed particle board and a preparation method thereof, and belongs to the technical field of production of new straw-based boards. Background technique [0002] my country's reed resources are abundant and widely distributed. It is an annual herb plant. According to statistics, the total amount of reed in my country is about 2.5 million tons per year, accounting for about 6% of the world's total output. At present, reed is mainly used as a raw material for papermaking in industrial applications. With the increasing shortage of wood resources, the search for wood substitutes has received more and more attention. Because the physical and chemical properties of reed are close to that of wood and the cellulose content is equivalent to that of wood, reed can be used as a substitute material for wood to produce wood-based panels. However, the performance of reed is still different from that of wood. Its epidermis is covered with a...

Claims

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Application Information

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IPC IPC(8): B27N3/00B27N3/02B27N3/10B27N3/20B32B21/02B32B21/13B32B37/10B32B37/06
CPCB27N3/002B27N3/02B27N3/10B27N3/203B32B21/02B32B21/13B32B37/06B32B37/10
Inventor 张丙坤张忠涛肖小兵胡广斌陈剑平李好张建辉
Owner 盘锦积葭生态板业有限公司
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