CN106182323A - A kind of shielding ray carbon fiber wood composite fibre board and preparation method thereof - Google Patents
A kind of shielding ray carbon fiber wood composite fibre board and preparation method thereof Download PDFInfo
- Publication number
- CN106182323A CN106182323A CN201610590343.7A CN201610590343A CN106182323A CN 106182323 A CN106182323 A CN 106182323A CN 201610590343 A CN201610590343 A CN 201610590343A CN 106182323 A CN106182323 A CN 106182323A
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- China
- Prior art keywords
- carbon fiber
- wood
- fiber
- fibre board
- resin adhesive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B27K3/52—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
-
- 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
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- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of shielding ray carbon fiber wood composite fibre board, be prepared by the raw materials in: the wood fiber 100 110, urea-formaldehyde resin adhesive 10 11, nano nickel 10 11, dehydrated alcohol are appropriate, 5 8mm chopped carbon fibers 33 35, acetone 1.7 1.9, isocyanate resin adhesive 3.3 3.5, ammonium chloride 5.6 5.9, nano titanium oxide 2.5 3, methacrylic acid gadolinium 1.8 2.2, nitrile rubber 2.5 2.8, lanthanum fluoride 1.2 1.6.By the present invention in that and use methacrylic acid gadolinium, nitrile rubber, lanthanum fluoride mixed and modified, the caking property of nitrile rubber, ageing resistance are improved, mix with carbon fiber again, improve the adhesion strength of carbon fiber and the wood fiber, improve the intensity of sheet material, ageing resistance, improve the carbon fiber shielding properties to X-ray simultaneously.
Description
Technical field
The present invention relates to fibre board technical field, particularly relate to a kind of shielding ray carbon fiber wood composite fibre board and
Preparation method.
Background technology
Along with the high speed development of material science, functional material is increasingly paid close attention to by scholars.Wherein, tool
Have high-performance, the composite wooden material of high added value has been increasingly becoming the study hotspot in this field.For meeting people to wooden
Many-sided performance requirement of material, Carbon Fiber-wood Composites material arises at the historic moment.The distinguishing feature of composite is its microcosmic
The designability of structure, the microstructure of material will determine its macro property.But due to sheet material in the course of processing because of carbon fiber
Light weight, smooth surface and being difficult to is mixed homogeneously with wood fibre and glue and electric conduction of carbon fiber has directivity.Thus easily cause
The problems such as sheet material local electrical resistance is high, and between zones of different, conductive effect difference is big, overall mechanics unstable properties.How to pass through science
The microstructure of sheet material is organically combined by means with macro property, thus improves the manufacturing process of sheet material, improves raw material
The homogenization degree of mixing becomes problem demanding prompt solution." segmentation of Carbon Fiber-wood Composites material SEM image and performance microcosmic table
Levy research " first pass through sheet material heat pressing process and complete the preparation of carbon fiber composite wood board, and the broad perspectives to model sheet material
Can test, including electric conductivity (surface resistivity), mechanical property (density, internal bond strength, MOR, springform
Amount and expansion rate of water absorption), capability of electromagnetic shielding, test data are analyzed, hold chopped carbon under the conditions of Different Preparation
Fiber composite wooden material characteristic variations rule, studies the composite microcosmic homogenization degree effect characteristics to macro property；
Model electron micrograph image is processed, from image by the image processing techniques then in conjunction with varimax with mathematical morphology
In the most complete acquisition carbon fiber image, using it as carbon fiber important evidence of uniformity coefficient in composite board；Finally
Carrying out characterizing the feature extraction of carbon fiber homogenization to the carbon fiber image extracted, selected characteristic quantity is area
Ratio, mean breadth and length-width ratio etc., it is intended that the microstructure characteristic of sheet material is combined with macro physical performance, and makees with this
For analyzing model actual application value and the important evidence improving manufacturing process.
By the research of this article, when the addition of carbon fiber is the 20% of wood fiber quality, the internal bond strength of composite
Reaching 5447MPa for 0.88MPa, MOR 36.8MPa, elastic modelling quantity, indices is better than common medium density fibre board (MDF), with
The addition carbon fiber continues to increase, and properties declines.When the addition of carbon fiber is the 20% of wood fiber quality, do not have
Reach 30dBm, not there is effective electromagnet shield effect.Want to have more preferable mechanical property and electromagnetism so that fibre board simultaneously
Shield effectiveness, needs to be modified material.And along with growth in the living standard, the anti-flammability of fibre board, resistance to water, strong
The performances such as degree, anti-radiation, heat insulation property, buckle resistance are also required to improve.
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 shielding ray carbon fiber wood composite is fine
Dimension plate and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of shielding ray carbon fiber wood composite fibre board, is prepared by the raw materials in: wood fiber 100-110, urea
Urea formaldehyde adhesive 10-11, nano nickel 10-11, dehydrated alcohol are appropriate, 5-8mm chopped carbon fiber 33-35, acetone 1.7-1.9,
Isocyanate resin adhesive 3.3-3.5, ammonium chloride 5.6-5.9, nano titanium oxide 2.5-3, methacrylic acid gadolinium 1.8-2.2,
Nitrile rubber 2.5-2.8, lanthanum fluoride 1.2-1.6.
The preparation method of described shielding ray carbon fiber wood composite fibre board, comprises the following steps:
(1) nano nickel is added in dehydrated alcohol, be configured to the dispersion liquid of 4-4.3wt%, by the wood fiber in hot press, at 70-
Compressing at 75 DEG C, compression ratio is 30-35%, is immediately placed in the dispersion liquid of nano nickel, soaks 120-140 minute, takes out, at 60-
Being dried at 65 DEG C to moisture content is 12-15%, obtains innovation wood fiber；
(2) by methacrylic acid gadolinium, nitrile rubber, lanthanum fluoride mix homogeneously, modified butadiene acrylonitrile rubber is obtained；
(3) acetone is mixed homogeneously with isocyanate resin adhesive, add modified butadiene acrylonitrile rubber, mix homogeneously, then with carbon fiber
Mixing, obtains modified carbon fiber；
(4) by other residual components mix homogeneously, mix homogeneously with modified butadiene acrylonitrile rubber, innovation wood fiber, modified carbon fiber, enter
Row is mated formation, and carries out hot pressing 20-25s/mm, to obtain final product at 170-175 DEG C.
The invention have the advantage that the present invention uses nano nickel dispersion liquid to impregnate the wood fiber so that nano nickel enters
The hole of the wood fiber, improves the density of fiber, hardness, MOR and elastic modelling quantity, also improves the anticorrosion of the wood fiber
Property；Coordinate with carbon fiber so that electromagnetic wave forms multiple reflections, improves electromagnet shield effect simultaneously, solve carbon fiber and hold
Easily causing sheet material local electrical resistance high, between zones of different, conductive effect difference is big, overall mechanics unstable properties problem；By at glue
Glutinous agent adds nano titanium oxide, it is possible to slow down the oxidation of nano nickel, keep lasting electromagnetic wave shielding, also improve sheet material
Ageing resistance.By using methacrylic acid gadolinium, nitrile rubber, lanthanum fluoride mixed and modified so that the caking property of nitrile rubber,
Ageing resistance improves, then mixes with carbon fiber, improves the adhesion strength of carbon fiber and the wood fiber, improve sheet material intensity,
Ageing resistance, improves the carbon fiber shielding properties to X-ray simultaneously.
Detailed description of the invention
A kind of shielding ray carbon fiber wood composite fibre board, is made up of the raw material of following weight portion (kilogram): the wood fiber
100, urea-formaldehyde resin adhesive 10, nano nickel 10, dehydrated alcohol be appropriate, 5mm chopped carbon fiber 33, acetone 1.7, isocyanate resin
Adhesive 3.3, ammonium chloride 5.6, nano titanium oxide 2.5, methacrylic acid gadolinium 1.8, nitrile rubber 2.5, lanthanum fluoride 1.2.
The preparation method of described shielding ray carbon fiber wood composite fibre board, comprises the following steps:
(1) nano nickel is added in dehydrated alcohol, be configured to the dispersion liquid of 4wt%, by the wood fiber in hot press, at 70 DEG C
Compression, compression ratio is 30%, is immediately placed in the dispersion liquid of nano nickel, soaks 120 minutes, takes out, is dried to aqueous at 60 DEG C
Rate is 12%, obtains innovation wood fiber；
(2) by methacrylic acid gadolinium, nitrile rubber, lanthanum fluoride mix homogeneously, modified butadiene acrylonitrile rubber is obtained；
(3) acetone is mixed homogeneously with isocyanate resin adhesive, add modified butadiene acrylonitrile rubber, mix homogeneously, then with carbon fiber
Mixing, obtains modified carbon fiber；
(4) by other residual components mix homogeneously, mix homogeneously with modified butadiene acrylonitrile rubber, innovation wood fiber, modified carbon fiber, enter
Row is mated formation, and carries out hot pressing 20s/mm, to obtain final product at 170 DEG C.
Detecting the present embodiment fibre board, density is 0.745g/cm3, MOR is 42.9MPa, elastic modelling quantity
For 5981MPa, internal bond strength be 1.46MPa, thickness swelling rate be 8.91%.It is 5 × 10 in frequency8Electricity during more than Hz
Magnetic shield usefulness reaches more than 60dBm.
Claims (2)
1. a shielding ray carbon fiber wood composite fibre board, it is characterised in that: it is prepared by the raw materials in: wood is fine
Dimension 100-110, urea-formaldehyde resin adhesive 10-11, nano nickel 10-11, dehydrated alcohol are appropriate, 5-8mm chopped carbon fiber 33-35,
Acetone 1.7-1.9, isocyanate resin adhesive 3.3-3.5, ammonium chloride 5.6-5.9, nano titanium oxide 2.5-3, metering system
Acid gadolinium 1.8-2.2, nitrile rubber 2.5-2.8, lanthanum fluoride 1.2-1.6.
Shield the preparation method of ray carbon fiber wood composite fibre board the most according to claim 1, it is characterised in that include
Following steps:
(1) nano nickel is added in dehydrated alcohol, be configured to the dispersion liquid of 4-4.3wt%, by the wood fiber in hot press, at 70-
Compressing at 75 DEG C, compression ratio is 30-35%, is immediately placed in the dispersion liquid of nano nickel, soaks 120-140 minute, takes out, at 60-
Being dried at 65 DEG C to moisture content is 12-15%, obtains innovation wood fiber；
(2) by methacrylic acid gadolinium, nitrile rubber, lanthanum fluoride mix homogeneously, modified butadiene acrylonitrile rubber is obtained；
(3) acetone is mixed homogeneously with isocyanate resin adhesive, add modified butadiene acrylonitrile rubber, mix homogeneously, then with carbon fiber
Mixing, obtains modified carbon fiber；
(4) by other residual components mix homogeneously, mix homogeneously with modified butadiene acrylonitrile rubber, innovation wood fiber, modified carbon fiber, enter
Row is mated formation, and carries out hot pressing 20-25s/mm, to obtain final product at 170-175 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590343.7A CN106182323A (en) | 2016-07-25 | 2016-07-25 | A kind of shielding ray carbon fiber wood composite fibre board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590343.7A CN106182323A (en) | 2016-07-25 | 2016-07-25 | A kind of shielding ray carbon fiber wood composite fibre board and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106182323A true CN106182323A (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610590343.7A Pending CN106182323A (en) | 2016-07-25 | 2016-07-25 | A kind of shielding ray carbon fiber wood composite fibre board and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114350169A (en) * | 2022-01-10 | 2022-04-15 | 南京林业大学 | Preparation method of formaldehyde-free high-strength electromagnetic shielding wood fiber composite material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214865A (en) * | 2013-04-22 | 2013-07-24 | 东北林业大学 | Carbon fibre wood electromagnetic shielding material and preparation method thereof |
| CN104985668A (en) * | 2015-06-24 | 2015-10-21 | 南通亚振东方家具有限公司 | Fiber wood with electromagnetic shielding function and preparation method thereof |
| CN105034129A (en) * | 2015-07-15 | 2015-11-11 | 百仪家具有限公司 | Water-resistant and heat-resistant waste tire rubber powder modified bamboo fiberboard and preparation method thereof |
-
2016
- 2016-07-25 CN CN201610590343.7A patent/CN106182323A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214865A (en) * | 2013-04-22 | 2013-07-24 | 东北林业大学 | Carbon fibre wood electromagnetic shielding material and preparation method thereof |
| CN104985668A (en) * | 2015-06-24 | 2015-10-21 | 南通亚振东方家具有限公司 | Fiber wood with electromagnetic shielding function and preparation method thereof |
| CN105034129A (en) * | 2015-07-15 | 2015-11-11 | 百仪家具有限公司 | Water-resistant and heat-resistant waste tire rubber powder modified bamboo fiberboard and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨柳涛等: "《高分子材料》", 31 May 2016, 电子科技大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114350169A (en) * | 2022-01-10 | 2022-04-15 | 南京林业大学 | Preparation method of formaldehyde-free high-strength electromagnetic shielding wood fiber composite material |
| CN114350169B (en) * | 2022-01-10 | 2023-02-28 | 南京林业大学 | Preparation method of formaldehyde-free high-strength electromagnetic shielding wood fiber composite material |
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Application publication date: 20161207 |