CN106182318A - A kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof - Google Patents

A kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof Download PDF

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Publication number
CN106182318A
CN106182318A CN201610561031.3A CN201610561031A CN106182318A CN 106182318 A CN106182318 A CN 106182318A CN 201610561031 A CN201610561031 A CN 201610561031A CN 106182318 A CN106182318 A CN 106182318A
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China
Prior art keywords
aluminium powder
nano
fire
mdf
medium density
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Pending
Application number
CN201610561031.3A
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Chinese (zh)
Inventor
夏大庆
孔令根
王平
王安勇
戚明永
王丹
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Zhibang Kitchen Cabinet Co Ltd
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Zhibang Kitchen Cabinet Co Ltd
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Priority to CN201610561031.3A priority Critical patent/CN106182318A/en
Publication of CN106182318A publication Critical patent/CN106182318A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/007—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process employing compositions comprising nanoparticles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0228—Spraying apparatus, e.g. tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
    • B27N1/0254—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with means for spraying the agent on the material before it is introduced in the mixer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/12—Moulding of mats from fibres
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2200/00—Wooden materials to be treated
    • B27K2200/15—Pretreated particles or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/70—Hydrophobation treatment

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Nanotechnology (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The invention discloses a kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF), be prepared by the raw materials in: the wood fiber 100 110, urea-formaldehyde resin adhesive are appropriate, graphite powder 22 23, nanometer aluminium powder 5 5.5, nano antimony tin oxide 5 5.5, dehydrated alcohol 50 60, sodium borate 1 1.5, APP 1.3 1.6, magnesium hydroxide 1.5 1.8, organosilicon quaternary ammonium salt 0.3 0.5.The present invention uses nanometer aluminium powder, graphite powder, nano antimony tin oxide to be coated with, define three layers of conductive layer interconnected, electromagnetic wave is defined three layer filtration, improve shield effectiveness, light fastness aging and thermostability can also be improve, decrease aluminium powder consumption, reduce panel weight, improve corrosion resistance and the adhesion strength of sheet material.By using sodium borate, APP, magnesium hydroxide, organosilicon quaternary ammonium salt, improve fire resistance and the mildew resistance of sheet material.

Description

A kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof
Technical field
The present invention relates to Technologies of Medium Density Fiberboard field, particularly relate in a kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding Density fiber board and preparation method thereof.
Background technology
Construction and household electrical appliance along with electrical equipments such as communication antenna, ultra-high-tension power transmission line, television signal transmission towers Increase, the most serious Electromagnetic Radiation on Environment causes pollution in various degree.Serious electromagnetic pollution can cause plant Genovariation, cannot grow even dead；Domestic animal, wild animal etc. are had undesirable effect；The mankind can be caused nervus centralis The malfunction of system and the imbalance of tired based on sympathetic nerve, nervous vegetative nerve anxiety, the hazards of electromagnetic radiation mankind's Healthy and pollute environment, therefore shielding electromagnetic waves problem is particularly important.Up to the present, although open fund item Mesh: Guangxi Zhuang Autonomous Region Science and Technology Department project (Gui Ke attacks 14122005-37).Send out much to have and prevented electromagnetic wave shielding function Electromagnetic shielding material, but main with plastics, metal material as object, for wooden system electromagnetic shielding material research not Many, researches in the fibre board field of furniture, mainly addition ferrum net, the copper mesh in fibre board of current literature research Or other metal dusts.
" application on electromagnetic shielding medium density fibre board (MDF) of the graphite/aluminium powder " on the Process ba-sis of general fibre plate, no Change existing equipment, make general fibre plate have electromagnetic wave shielding ability by adding graphite/aluminium powder, thus reduce electromagnetism spoke Penetrate the impact on health of people and environment.This article confirms that the impact on sheet material physical property of the graphite/aluminium powder is along with its addition Increase and increase.When the applied amount of graphite/aluminium powder is less than the 12.50% of fibre weight, shield effectiveness is the most invalid；Applied amount reaches Fibre weight 37.50% time, shield effectiveness is preferable；When applied amount reaches the 50.00% of fibre weight, shield effectiveness is fine, and can be full The furniture type medium density fibre board (MDF) used under 5.3.2.1 drying regime in foot GB/T 11,718 2009 " medium density fibre board (MDF) " Performance requirement.
Owing to the addition of graphite/aluminium powder is big, the mechanical property of sheet material is inadequate, needs to improve.Also need to improve sheet material A series of performances such as ageing resistance, wearability, sound-proofing, the feature of environmental protection, processability, water proofing property, anti-flammability, cracking behavior.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding Medium density fibre board (MDF) and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF), is prepared by the raw materials in: the wood fiber 100-110, urea-formaldehyde resin adhesive are appropriate, graphite powder 22-23, nanometer aluminium powder 5-5.5, nano antimony tin oxide 5-5.5, anhydrous second Alcohol 50-60, sodium borate 1-1.5, APP 1.3-1.6, magnesium hydroxide 1.5-1.8, organosilicon quaternary ammonium salt 0.3-0.5.
The preparation method of described fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF), comprises the following steps:
(1) nanometer aluminium powder is added in the dehydrated alcohol of half amount, stir, ultrasonic disperse 4-6 minute, obtain mixing slurry Material,
(2) wood fiber is dried, while seethe stirring limit to spray described mixed slurry, dries, obtain innovation wood fiber；
(3) nano antimony tin oxide is added in residue dehydrated alcohol, obtain nano dispersion fluid, by sodium borate, APP, hydrogen-oxygen Change after magnesium, organosilicon quaternary ammonium salt are mixed homogeneously with innovation wood fiber by 200-210kg/m3Applying glue, mixes with other surplus stocks Uniformly, spray described nano dispersion fluid while stirring, stir, be dried at 90-95 DEG C to moisture content be 32-33%；
(4) mat formation, at 178-182 DEG C, carry out hot pressing 20-25s/mm, to obtain final product.
The invention have the advantage that the present invention uses nanometer aluminium powder ethanol solution to spray the wood fiber so that nano aluminum Powder adsorbs on wood fiber hole and surface, defines conductive layer, improves the electric conductivity of the wood fiber, resistance to water；Re-use graphite Powder, nano antimony tin oxide carry out double-coating, define three layers of conductive layer interconnected, electromagnetic wave defines three layers of mistake Filter, improves shield effectiveness, moreover it is possible to improve light fastness aging and thermostability, decreases aluminium powder consumption, reduce panel weight, Also improve the compactness of the wood fiber, improve corrosion resistance and the adhesion strength of sheet material.By using sodium borate, polyphosphoric acid Ammonium, magnesium hydroxide, organosilicon quaternary ammonium salt, improve fire resistance and the fungicidal properties of sheet material, is suitable for the furniture system of southern area Make.
Detailed description of the invention
A kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF), by the raw material system of following weight portion (kilogram) Become: the wood fiber 100, urea-formaldehyde resin adhesive are appropriate, graphite powder 22, nanometer aluminium powder 5, nano antimony tin oxide 5, dehydrated alcohol 50, Sodium borate 1, APP 1.3, magnesium hydroxide 1.5, organosilicon quaternary ammonium salt 0.3.
The preparation method of described fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF), comprises the following steps:
(1) nanometer aluminium powder is added in the dehydrated alcohol of half amount, stir, ultrasonic disperse 4 minutes, obtain mixed slurry,
(2) wood fiber is dried, while seethe stirring limit to spray described mixed slurry, dries, obtain innovation wood fiber；
(3) nano antimony tin oxide is added in residue dehydrated alcohol, obtain nano dispersion fluid, by sodium borate, APP, hydrogen-oxygen Change after magnesium, organosilicon quaternary ammonium salt are mixed homogeneously with innovation wood fiber by 200kg/m3Applying glue, mixs homogeneously with other surplus stocks, Spray described nano dispersion fluid while stirring, stir, be dried at 90 DEG C to moisture content be 32%；
(4) mat formation, at 178 DEG C, carry out hot pressing 20s/mm, to obtain final product.
According in the furniture type used under the 5.3.2.1 drying regime in GB/T 11,718 2009 " medium density fibre board (MDF) " Density fiber board performance requirement, detects fibre board, and density is 741kg/m3, MOR is 35.2MPa, elastic modelling quantity For 3012MPa, internal bond strength be 1.05MPa, thickness swelling rate be 9.54%.
According to electron trade standard SJ20524 1995 " measuring method of Materials ' Shielding Effectiveness ", make electromagnetic shielding effect The test specimen that can test and detection shield effectiveness.Radiation frequency in 0～1500 MHz range, shield effectiveness 55～75dB it Between.

Claims (2)

1. a fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF), it is characterised in that: by the raw material of following weight portion Make: wood fiber 100-110, urea-formaldehyde resin adhesive are appropriate, graphite powder 22-23, nanometer aluminium powder 5-5.5, nano antimony tin oxide 5-5.5, dehydrated alcohol 50-60, sodium borate 1-1.5, APP 1.3-1.6, magnesium hydroxide 1.5-1.8, organosilicon quaternary ammonium salt 0.3-0.5。
The preparation method of the most fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF), its feature It is to comprise the following steps:
(1) nanometer aluminium powder is added in the dehydrated alcohol of half amount, stir, ultrasonic disperse 4-6 minute, obtain mixing slurry Material,
(2) wood fiber is dried, while seethe stirring limit to spray described mixed slurry, dries, obtain innovation wood fiber；
(3) nano antimony tin oxide is added in residue dehydrated alcohol, obtain nano dispersion fluid, by sodium borate, APP, hydrogen-oxygen Change after magnesium, organosilicon quaternary ammonium salt are mixed homogeneously with innovation wood fiber by 200-210kg/m3Applying glue, mixes with other surplus stocks Uniformly, spray described nano dispersion fluid while stirring, stir, be dried at 90-95 DEG C to moisture content be 32-33%；
(4) mat formation, at 178-182 DEG C, carry out hot pressing 20-25s/mm, to obtain final product.
CN201610561031.3A 2016-07-15 2016-07-15 A kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof Pending CN106182318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610561031.3A CN106182318A (en) 2016-07-15 2016-07-15 A kind of fire-retardant Nano graphite aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303346A (en) * 2011-07-05 2012-01-04 山东大学 B-P-Mg-Si series density fiber board inflaming-retarding mildewproof agent and preparation and application thereof
CN104175381A (en) * 2014-08-04 2014-12-03 中国林业科学研究院木材工业研究所 Fiberboard with electromagnetic shielding function and preparation method thereof
CN104690804A (en) * 2015-02-14 2015-06-10 广西丰林木业集团股份有限公司 Manufacturing method for fiberboard with electromagnetic shielding function
CN105751346A (en) * 2016-04-29 2016-07-13 安徽农业大学 Thin flame-retardant medium-density fiberboard and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303346A (en) * 2011-07-05 2012-01-04 山东大学 B-P-Mg-Si series density fiber board inflaming-retarding mildewproof agent and preparation and application thereof
CN104175381A (en) * 2014-08-04 2014-12-03 中国林业科学研究院木材工业研究所 Fiberboard with electromagnetic shielding function and preparation method thereof
CN104690804A (en) * 2015-02-14 2015-06-10 广西丰林木业集团股份有限公司 Manufacturing method for fiberboard with electromagnetic shielding function
CN105751346A (en) * 2016-04-29 2016-07-13 安徽农业大学 Thin flame-retardant medium-density fiberboard and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王雪松等: "水溶性纳米导静电浆料制备研究", 《化学建材》 *

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