CN106182319A - A kind of easily processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof - Google Patents
A kind of easily processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof Download PDFInfo
- Publication number
- CN106182319A CN106182319A CN201610561033.2A CN201610561033A CN106182319A CN 106182319 A CN106182319 A CN 106182319A CN 201610561033 A CN201610561033 A CN 201610561033A CN 106182319 A CN106182319 A CN 106182319A
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- aluminium powder
- nanometer aluminium
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- wood fiber
- mdf
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- 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)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Nanotechnology (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of easily processing graphite nanometer 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, thiol methyl tin 0.9 1.2, vulcanize two molybdenums 1.9 2.1, molybdenum trioxide 1.1 1.3.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, improve light fastness aging and thermostability, improve the compactness of the wood fiber, improve corrosion resistance and the adhesion strength of sheet material.By using thiol methyl tin, improve the heat stability of sheet material, at high temperature can not ftracture, vulcanize two molybdenums and improve processing characteristics and the wearability of sheet material;Molybdenum trioxide improves the anti-flammability of sheet material.
Description
Technical field
The present invention relates to Technologies of Medium Density Fiberboard field, particularly relate to a kind of easily processing graphite nanometer aluminium powder electromagnetic shielding
Medium density fibre board (MDF) 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 easily processing graphite nanometer aluminium powder electromagnetic screen
Cover medium density fibre board (MDF) and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of easily processing graphite nanometer 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, thiol methyl tin 0.9-1.2, vulcanize two molybdenum 1.9-2.1, molybdenum trioxide 1.1-1.3.
The preparation method of described easy processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF), comprises the following steps:
(1) by thiol methyl tin, vulcanizing two molybdenum mix homogeneously, with the dehydrated alcohol that nanometer aluminium powder adds half amount, stirring is all
Even, ultrasonic disperse 4-6 minute, 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, innovation wood fiber is pressed 200-
210kg/m3Applying glue, mixs homogeneously with other surplus stocks, sprays described nano dispersion fluid while stirring, stirs, at 90-
Be dried at 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 thiol methyl tin, improve
The heat stability of sheet material, at high temperature can not ftracture, vulcanize two molybdenums and improve processing characteristics and the wearability of sheet material;Three oxygen
Change molybdenum and improve the anti-flammability of sheet material.
Detailed description of the invention
A kind of easily processing graphite nanometer 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,
Thiol methyl tin 0.9, vulcanize two molybdenums 1.9, molybdenum trioxide 1.1.
The preparation method of described easy processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF), comprises the following steps:
(1) by thiol methyl tin, vulcanizing two molybdenum mix homogeneously, with the dehydrated alcohol that nanometer aluminium powder adds half amount, stirring is all
Even, 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, innovation wood fiber is pressed 200kg/m3
Applying glue, mixs homogeneously with other surplus stocks, sprays described nano dispersion fluid while stirring, stirs, and is dried at 90 DEG C
It is 32% to moisture content;
(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 771kg/m3, MOR is 39.5MPa, elastic modelling quantity
For 3412MPa, internal bond strength be 1.18MPa, thickness swelling rate be 9.08%.
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. an easy processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF), it is characterised in that: former by following weight portion
Material is made: wood fiber 100-110, urea-formaldehyde resin adhesive are appropriate, graphite powder 22-23, nanometer aluminium powder 5-5.5, nano tin dioxide
Antimony 5-5.5, dehydrated alcohol 50-60, thiol methyl tin 0.9-1.2, vulcanize two molybdenum 1.9-2.1, molybdenum trioxide 1.1-1.3.
The most according to claim 1, the preparation method of easy processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF), it is special
Levy and be to comprise the following steps:
(1) by thiol methyl tin, vulcanizing two molybdenum mix homogeneously, with the dehydrated alcohol that nanometer aluminium powder adds half amount, stirring is all
Even, ultrasonic disperse 4-6 minute, 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, innovation wood fiber is pressed 200-
210kg/m3Applying glue, mixs homogeneously with other surplus stocks, sprays described nano dispersion fluid while stirring, stirs, at 90-
Be dried at 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.
Priority Applications (1)
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CN201610561033.2A CN106182319A (en) | 2016-07-15 | 2016-07-15 | A kind of easily processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof |
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CN201610561033.2A CN106182319A (en) | 2016-07-15 | 2016-07-15 | A kind of easily processing graphite nanometer aluminium powder electromagnetic shielding medium density fibre board (MDF) and preparation method thereof |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101168311A (en) * | 2007-02-14 | 2008-04-30 | 陈星耕 | Composite material and preparation method thereof |
CN102294717A (en) * | 2011-08-23 | 2011-12-28 | 中南林业科技大学 | Multiple-effect wood protective agent based on metal oxide |
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 |
CN105820399A (en) * | 2016-05-06 | 2016-08-03 | 滁州远方车船装备工程有限公司 | Wood and rubber composite floor used for train and preparing method thereof |
-
2016
- 2016-07-15 CN CN201610561033.2A patent/CN106182319A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101168311A (en) * | 2007-02-14 | 2008-04-30 | 陈星耕 | Composite material and preparation method thereof |
CN102294717A (en) * | 2011-08-23 | 2011-12-28 | 中南林业科技大学 | Multiple-effect wood protective agent based on metal oxide |
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 |
CN105820399A (en) * | 2016-05-06 | 2016-08-03 | 滁州远方车船装备工程有限公司 | Wood and rubber composite floor used for train and preparing method thereof |
Non-Patent Citations (1)
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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