CN106633983B - A kind of preparation method of nanoparticle/fibrous composite - Google Patents
A kind of preparation method of nanoparticle/fibrous composite Download PDFInfo
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- CN106633983B CN106633983B CN201611159178.6A CN201611159178A CN106633983B CN 106633983 B CN106633983 B CN 106633983B CN 201611159178 A CN201611159178 A CN 201611159178A CN 106633983 B CN106633983 B CN 106633983B
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- nanoparticle
- raw material
- fibrous composite
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 131
- 239000002131 composite material Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 238000004880 explosion Methods 0.000 claims abstract description 52
- 239000000835 fiber Substances 0.000 claims abstract description 43
- 239000002994 raw material Substances 0.000 claims description 104
- 239000002002 slurry Substances 0.000 claims description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000010902 straw Substances 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 241000209504 Poaceae Species 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 239000002916 wood waste Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 241000609240 Ambelania acida Species 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 4
- 244000299507 Gossypium hirsutum Species 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 claims description 4
- 241000209140 Triticum Species 0.000 claims description 4
- 235000021307 Triticum Nutrition 0.000 claims description 4
- 240000008042 Zea mays Species 0.000 claims description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 4
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- 239000010905 bagasse Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
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- 235000005822 corn Nutrition 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000010907 stover Substances 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- 229910001679 gibbsite Inorganic materials 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
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- 239000002657 fibrous material Substances 0.000 description 5
- 239000002086 nanomaterial Substances 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 4
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
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- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
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- 235000009566 rice Nutrition 0.000 description 2
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- 244000025254 Cannabis sativa Species 0.000 description 1
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
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- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
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Abstract
The present invention provides a kind of preparation methods of nanoparticle/fibrous composite, and nanoparticle is evenly distributed on fiber using steam explosion, to prepare nanoparticle/fibrous composite.Nanoparticle is evenly distributed on fiber by the preparation method of nanoparticle/fibrous composite provided by the invention using steam explosion, to prepare nanoparticle/fibrous composite.Preparation method of the invention, process is simple, at low cost, and low energy consumption, high production efficiency, is suitble to industrialized production.Nanoparticle/fibrous composite prepared by preparation method of the invention has broad application prospects in non-glue fibre board production field.
Description
Technical field
The present invention relates to technical field of composite materials, and in particular to a kind of preparation side of nanoparticle/fibrous composite
Method.
Background technique
Nano material refers to that the size of material is generally 1-100nm, be it is a kind of between atom, molecule and macroscopic material it
Between, the solid material in intermediate state.Nano material has quantum effect, small-size effect, skin effect and fractal aggregation
Characteristic etc. can be used for the fields such as photoelectricity magnetic susceptibility and catalysis to show many special property.A large number of studies show that inorganic
Nanoparticle has the effects such as light transmission, enhancing, water-fast, heat-insulated, fire prevention, sterilization, mould proof, self-cleaning, is widely used and protects in material
Shield and material property improvement.There are very strong ultraviolet screener effect and infrared ray absorbing effect if nano-ZnO, can generate anti-ageing
Change the effect with antibacterial；Nanometer Al2O3、SiO2It is mainly used in Optical Single Crystals and fine ceramics, there is excellent hardness, wear resistence
And toughening effect, its intensity and toughness can be significantly increased；Nanometer Ag has excellent antimildew and antibacterial effect；Nano-meter CaCO33
It is a kind of widely used reinforcing agent, hardness and rigidity can be improved；Nano-TiO2With strong photocatalytic activity, decomposition can be played
Organic pollutant purifies air and sterilizes self-cleaning effect.
Currently, fibrous material be only limitted in application field production medium density fibre board (MDF), the harm generated during production, such as
The organic substances such as formaldehyde, the phenol of adhesive release have been to be concerned by more and more people, and especially on April 18th, 2008, the U.S. added
Li Funiya state Air Resources Board (CARB) has issued the noxious material air borne for reducing Wood composite products formaldehyde emissions
, it is specified that not meeting the Wood composite products of CARB certification and finished product containing Wood composite products not can enter the U.S. after control measure
Market, therefore, people have been devoted to research and develop novel fibrous material, to produce non-glue fibre board product.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of preparation method of nanoparticle/fibrous composite, with
The fibrous material for having excellent mechanical performances is provided.
The preparation method of nanoparticle/fibrous composite provided by the invention, using steam explosion by nanoparticle
It is evenly distributed on fiber, to prepare nanoparticle/fibrous composite.
Optionally, include the following steps:
Raw material, and the difference according to raw material form are collected, carries out cutting out short or slicing treatment, then be dried so that institute
The moisture content of raw material is stated less than 10%, wherein the raw material includes timber, bamboo wood and corresponding industrial wood waste, crops
Waste and grass family weeds；
Nanoparticle is mixed with the raw material and is fitted into cooker, steam explosion treatment is carried out, it is quick-fried to obtain steaming
Slurry, wherein the steam pressure of the cooker is 1.0-5.0MPa, and temperature is 100-200 DEG C, pressure maintaining 1-30min, then will pressure
After power is increased to 5.0-10.0MPa, unexpected release carries out explosion, and the nanoparticle includes TiO2、ZnO、Ag、SiO2、Fe3O4、
CaCO3、Al2O3、Mg(OH)2、Al(OH)3, graphene, carbon fiber and carbon nanotube, it is exhausted that the nanoparticle accounts for the raw material
The 0.05%-20% of dry weight；
Steam quick-fried slurry by described and carry out pneumatic conveying drying, its moisture content is made to be down to 5%-16%, obtain the nanoparticle/
Fibrous composite.
Optionally, the agricultural waste material includes straw, wheat straw, corn stover, cotton stem and bagasse, the grass
Section weeds includes reed and awns bar.
Optionally, before explosion, using H3PO4、HCl、H2SO4With any one in NaOH to adjust the nanometer
The pH value of the mixture of particle and the raw material.
The present invention also provides a kind of nano-substance/biomass fiber composite materials, are prepared according to the preparation method
It obtains.
As shown from the above technical solution, the preparation method of nanoparticle/fibrous composite provided by the invention, utilizes steaming
Nanoparticle is evenly distributed on fiber by vapour blasting procedure, to prepare nanoparticle/fibrous composite.Preparation of the invention
Method, process is simple, at low cost, and low energy consumption, high production efficiency, is suitble to industrialized production.Prepared by preparation method of the invention
Nanoparticle/fibrous composite have broad application prospects in non-glue fibre board production field.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 shows the flow chart of nanoparticle/fibrous composite preparation method provided by the embodiment of the present invention；
Fig. 2 is TiO prepared by the preparation method of the embodiment of the present invention 12Nanoparticle/fibrous composite scanning electricity
Sub- microscope figure；
Fig. 3 is TiO prepared by the preparation method of the embodiment of the present invention 12Nanoparticle/fibrous composite X-ray
Diffraction pattern；
Fig. 4 is the electricity of ZnO nanoparticle/fibrous composite scanning prepared by the preparation method of the embodiment of the present invention 2
Sub- microscope figure；
Fig. 5 is that ZnO nanoparticle/fibrous composite X-ray prepared by the preparation method of the embodiment of the present invention 2 is spread out
Penetrate figure；
Fig. 6 is the damage of ZnO nanoparticle/fibrous composite reflection prepared by the preparation method of the embodiment of the present invention 2
Consume the change curve of frequency；
Fig. 7 is Fe prepared by the preparation method of the embodiment of the present invention 53O4Nanoparticle/fibrous composite magnetic hysteresis is returned
Line.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be intended only as example, and cannot be used as a limitation and limit protection of the invention
Range.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
The preparation method of nanoparticle/fibrous composite provided by the invention, using steam explosion by nanoparticle
It is evenly distributed on fiber, to prepare nanoparticle/fibrous composite.
Fig. 1 shows the flow chart of nanoparticle/fibrous composite preparation method provided by the embodiment of the present invention.
Referring to Fig. 1, the preparation method includes the following steps:
Step S1, raw material, and the difference according to raw material form are collected, carries out cutting out short or slicing treatment, then be dried
So that the moisture content of the raw material is less than 10%, wherein the raw material includes that timber, bamboo wood and corresponding processing are remaining
Object, agricultural waste material and grass family weeds, the agricultural waste material include straw, wheat straw, corn stover, cotton stem and sweet
Bagasse, the grass family weeds include reed and awns bar；
Step S2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, obtain
Quick-fried slurry must be steamed, wherein the steam pressure of the cooker is 1.0-5.0MPa, and temperature is 100-200 DEG C, pressure maintaining 1-30min,
After pressure is increased to 5.0-10.0MPa again, unexpected release carries out explosion, and the nanoparticle includes TiO2、ZnO、Ag、SiO2、
Fe3O4、CaCO3、Al2O3、Mg(OH)2、Al(OH)3, graphene, carbon fiber and carbon nanotube, the nanoparticle accounts for described
The 0.05%-20% of raw material oven dry weight；
Step S3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 5%-16%, obtains described receive
Rice corpuscles/fibrous composite.
Wherein, before explosion, using H3PO4、HCl、H2SO4With any one in NaOH to adjust the nanoparticle
The sub pH value with the mixture of the raw material.The pH value is in 1~14 range.Fiber surface activity can be increased in this way, mentioned
The combined efficiency of high itself and nanoparticle.
The preparation method of nanoparticle/fibrous composite provided by the invention, using steam explosion by nanoparticle
It is evenly distributed on fiber, to prepare nanoparticle/fibrous composite.Preparation method of the invention, process is simple, cost
Low, low energy consumption, high production efficiency, is suitble to industrialized production.Nanoparticle/fiber composite prepared by preparation method of the invention
Material has broad application prospects in non-glue fibre board production field.
Fibrous material is the production essential substance of non-glue fibre board, the fiber of existing production non-glue fibre board
Processing mode is relatively simple, i.e., explosion treatment obtains the single fibrous material of performance in boiling cylinder.
Fiber, which should not only have as a kind of natural organic high-molecular material with inorganic nano material progress organic composite, to be received
Rice material small-size effect, quantum size effect and skin effect, but also should by the rigidity of inorganic matter, dimensional stability and
The high hot toughness with wood-fibred of high temperature resistant, preferably process, ratio of strength to weight height and unique environmentology feature are organically blent, from
And generate many new properties, such as super-hydrophobic, self-cleaning property, from bactericidal properties and self-degradation organic matter performance.
The excellent properties of nano material are assigned nano material and fiber composite to new composite material, not only by the present invention
The performance that can effectively improve and improve composite material, such as anti-corrosion, fire-retardant, dimensional stability, wear-resisting, it is ensured that it is used reliable
Property and safety, prolong the service life, and economize on resources and the energy, reduce environmental pollution；But also it is new to assign composite material
Performance, such as antibacterial, automatically cleaning, self-degradation, organic matter, thus the functionality of novel high added value can be prepared without glue fiber
Plate pushes the development of non-glue fibre board industry energetically.
Existing fiberboard be by add adhesive general fibre is chained up and pass through compacting formation, and
Using preparation method nanoparticle/fibrous composite obtained of the invention in the boiling of early period or blasting process, i.e.,
Itself link is generated, the later period, which need to only carry out heat-press step, can produce non-glue fibre board.
Below for nanoparticle/fibrous composite preparation method of the invention, following multiple embodiments are provided.
Embodiment 1
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is timber and its industrial wood waste；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 1.0MPa, and temperature is 100 DEG C, pressure maintaining 1min, then be pressure is increased to
After 5.0MPa, unexpected release carries out explosion, and the nanoparticle is TiO2, the nanoparticle accounts for the raw material oven dry weight
0.05%, wherein before explosion, using H3PO4The pH value of the mixture of the nanoparticle and the raw material is adjusted, it is described
PH value is 1.
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 5%, obtains the nanoparticle/fibre
Tie up composite material.
Fig. 2 is TiO prepared by the preparation method of the embodiment of the present invention 12Nanoparticle/fibrous composite scanning electricity
Sub- microscope figure.Referring to fig. 2, it can be observed that having loaded a large amount of inorganic nano-particles, as TiO on fiber2Nanoparticle.
Fig. 3 is TiO prepared by the preparation method of the embodiment of the present invention 12Nanoparticle/fibrous composite X-ray
Diffraction pattern.Referring to Fig. 3, it can be observed that TiO2Nanoparticle is successfully supported on fiber surface.
Embodiment 2
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is bamboo wood and its industrial wood waste；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 1.5MPa, and temperature is 110 DEG C, pressure maintaining 3min, then be pressure is increased to
After 5.5MPa, unexpected release carries out explosion, and the nanoparticle is ZnO, and the nanoparticle accounts for the raw material oven dry weight
0.1%, wherein before explosion, the pH value of the mixture of the nanoparticle and the raw material, the pH are adjusted using HCl
Value is 2.
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 6%, obtains the nanoparticle/fibre
Tie up composite material.
Fig. 4 is the electricity of ZnO nanoparticle/fibrous composite scanning prepared by the preparation method of the embodiment of the present invention 2
Sub- microscope figure.Referring to fig. 4, it can be observed that having loaded a large amount of inorganic nano-particles, as ZnO nanoparticle on fiber.
Fig. 5 is that ZnO nanoparticle/fibrous composite X-ray prepared by the preparation method of the embodiment of the present invention 2 is spread out
Penetrate figure.Referring to Fig. 5, it can be observed that ZnO nanoparticle is successfully supported on fiber surface.
Fig. 6 is the damage of ZnO nanoparticle/fibrous composite reflection prepared by the preparation method of the embodiment of the present invention 2
Consume the change curve of frequency.It is referring to Fig. 6, ZnO nanoparticle/fiber prepared by the preparation method of the embodiment of the present invention 2 is multiple
Condensation material takes that other parameters are identical, only four different samples of thickness, and thickness is respectively 2mm, 2.5mm, 3mm and 3.5mm, into
Test between the reflection loss and frequency of row sample.From fig. 6 it can be seen that in certain frequency range, the suction of sample
Fruit of producing effects increases with the increase of material thickness.When thickness of sample be 2mm when, 16.4GHz or so maximum attenuation value be-
4.8dB；It is -6.9dB in 16.2GHz or so maximum attenuation value when thickness of sample is 2.5mm；When thickness of sample is 3mm,
It is -8dB in 16.8GHz or so maximum attenuation value；When thickness of sample be 3.5mm when, 16.8GHz or so maximum attenuation value be-
9.2dB.From fig. 6 it can be seen that composite material is successfully integrated with the wave absorbtion of ZnO, this is that is to say, bright, ZnO nanoparticle/fibre
Tieing up composite material has good wave absorbtion.
Embodiment 3
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is agricultural waste material, specially straw；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 2.0MPa, and temperature is 120 DEG C, pressure maintaining 5min, then be pressure is increased to
After 6.0MPa, unexpected release carries out explosion, and the nanoparticle is Ag, and the nanoparticle accounts for the raw material oven dry weight
0.2%, wherein before explosion, using H2SO4Adjust the pH value of the mixture of the nanoparticle and the raw material, the pH
Value is 3.
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 7%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 4
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is agricultural waste material, specially wheat straw；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 2.5MPa, and temperature is 130 DEG C, pressure maintaining 7min, then be pressure is increased to
After 6.5MPa, unexpected release carries out explosion, and the nanoparticle is SiO2, the nanoparticle accounts for the raw material oven dry weight
0.5%, wherein before explosion, using H3PO4It is described to adjust the pH value of the mixture of the nanoparticle and the raw material
PH value is 4.
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 8%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 5
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is agricultural waste material, specially corn stover；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 3.0MPa, and temperature is 140 DEG C, pressure maintaining 10min, then be pressure is increased to
After 7.0MPa, unexpected release carries out explosion, and the nanoparticle is Fe3O4, the nanoparticle accounts for the raw material oven dry weight
1%, wherein before explosion, the pH value of the mixture of the nanoparticle and the raw material, the pH value are adjusted using HCl
It is 5.
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 9%, obtains the nanoparticle/fibre
Tie up composite material.
Fig. 7 is Fe prepared by the preparation method of the embodiment of the present invention 53O4Nanoparticle/fibrous composite magnetic hysteresis is returned
Line.Wherein, abscissa is magnetic field (Oe), and ordinate is saturation magnetization (emu/g).By the preparation side of the embodiment of the present invention 5
Fe prepared by method3O4Three samples that nanoparticle/fibrous composite takes concentration different, at room temperature through vibrating example
Magnetometer detection, specific curve change referring to Fig. 7, the saturation magnetic field intensity of sample with the concentration of sample.
When sample concentration is 30wt.%, saturation magnetic field intensity is 19.2emu/g；When sample concentration is 35wt.%
When, saturation magnetic field intensity is 25.9emu/g；When sample concentration is 40wt.%, saturation magnetic field intensity is 30.7emu/g.
It can be seen from figure 7 that composite material successfully inherits Fe3O4Magnetism, and with the increase of concentration, saturation magnetic field is strong
Degree is consequently increased, this is that is to say, bright, Fe3O4Nanoparticle/fibrous composite has fabulous magnetism.
Embodiment 6
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is agricultural waste material, specially cotton stem；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 3.5MPa, and temperature is 150 DEG C, pressure maintaining 15min, then be pressure is increased to
After 7.5MPa, unexpected release carries out explosion, and the nanoparticle is CaCO3, the nanoparticle accounts for the raw material oven dry weight
4%, wherein before explosion, using H2SO4Adjust the pH value of the mixture of the nanoparticle and the raw material, the pH
Value is 6.
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 10%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 7
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is agricultural waste material, specially bagasse；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 4.0MPa, and temperature is 160 DEG C, pressure maintaining 20min, then be pressure is increased to
After 8.0MPa, unexpected release carries out explosion, and the nanoparticle is Al2O3, the nanoparticle accounts for the raw material oven dry weight
5%, wherein before explosion, using H3PO4Adjust the pH value of the mixture of the nanoparticle and the raw material, the pH value
It is 7.
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 11%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 8
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is grass family weeds, specially reed；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 4.5MPa, and temperature is 170 DEG C, pressure maintaining 25min, then be pressure is increased to
After 8.5MPa, unexpected release carries out explosion, and the nanoparticle is Mg (OH)2, the nanoparticle accounts for the raw material over dry weight
The 8% of amount, wherein before explosion, the pH value of the mixture of the nanoparticle and the raw material is adjusted using NaOH.It is described
PH value is 8；
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 12%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 9
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material is grass family weeds, specially awns bar；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 5.0MPa, and temperature is 180 DEG C, pressure maintaining 28min, then be pressure is increased to
After 9.0MPa, unexpected release carries out explosion, and the nanoparticle is Al (OH)3, the nanoparticle accounts for the raw material over dry weight
The 10% of amount, wherein before explosion, the pH value of the mixture of the nanoparticle and the raw material is adjusted using NaOH.Institute
Stating pH value is 9；
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 13%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 10
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material includes timber, bamboo wood and corresponding industrial wood waste；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 5.0MPa, and temperature is 200 DEG C, pressure maintaining 30min, then be pressure is increased to
After 10.0MPa, unexpected release carries out explosion, and the nanoparticle is graphene, and the nanoparticle accounts for the raw material over dry weight
The 12% of amount, wherein before explosion, the pH value of the mixture of the nanoparticle and the raw material is adjusted using NaOH.Institute
Stating pH value is 10；
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 14%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 11
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material includes timber, bamboo wood and corresponding industrial wood waste；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 5.0MPa, and temperature is 200 DEG C, pressure maintaining 30min, then be pressure is increased to
After 10.0MPa, unexpected release carries out explosion, and the nanoparticle is carbon fiber, and the nanoparticle accounts for the raw material over dry weight
The 15% of amount, wherein before explosion, the pH value of the mixture of the nanoparticle and the raw material is adjusted using NaOH.Institute
Stating pH value is being 11；
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 15%, obtains the nanoparticle/fibre
Tie up composite material.
Embodiment 12
1, collect raw material, and the difference according to raw material form carries out cutting out short or slicing treatment, be then dried so that
The moisture content of the raw material is less than 10%, wherein the raw material includes timber, bamboo wood and corresponding industrial wood waste；
2, nanoparticle is mixed with the raw material and is fitted into cooker, carried out steam explosion treatment, steamed
Quick-fried slurry, wherein the steam pressure of the cooker is 5.0MPa, and temperature is 200 DEG C, pressure maintaining 30min, then be pressure is increased to
After 10.0MPa, unexpected release carries out explosion, and the nanoparticle is carbon nanotube, and the nanoparticle accounts for the raw material over dry
The 20% of weight, wherein before explosion, the pH value of the mixture of the nanoparticle and the raw material is adjusted using NaOH.
The pH value is 14；
3, quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 16%, obtains the nanoparticle/fibre
Tie up composite material.
Present invention nanoparticle/fibrous composite obtained is not in the case where reducing its mechanical property, Ke Yi great
Push the development of dynamic non-glue fibre board.
Unless specifically stated otherwise, the numerical value otherwise illustrated in these embodiments is not limit the scope of the invention.?
In all examples shown and described herein, unless otherwise prescribed, any occurrence should be construed as merely illustratively, and
Not by way of limitation, therefore, other examples of exemplary embodiment can have different values.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (2)
1. a kind of preparation method of nanoparticle/fibrous composite, which is characterized in that utilize steam explosion by nanoparticle
It is evenly distributed on fiber, to prepare nanoparticle/fibrous composite；Specifically comprise the following steps:
Raw material, and the difference according to raw material form are collected, carries out cutting out short or slicing treatment, then be dried so that the original
The moisture content of material is less than 10%, wherein the raw material includes timber, bamboo wood and corresponding industrial wood waste, crop waste
Object and grass family weeds；
Nanoparticle is mixed with the raw material and is fitted into cooker, Steam explosion treatment is carried out, obtains and steams quick-fried slurry
Material, wherein the steam pressure of the cooker is 1.0-5.0MPa, and temperature is 100-200 DEG C, pressure maintaining 1-30min, then by pressure
After being increased to 5.0-10.0MPa, unexpected release carries out explosion, and the nanoparticle includes TiO2、ZnO、Ag、SiO2、Fe3O4、
CaCO3、Al2O3、Mg(OH)2、Al(OH)3, graphene, carbon fiber and carbon nanotube, it is exhausted that the nanoparticle accounts for the raw material
The 0.05%-20% of dry weight；Wherein, before explosion, using H3PO4、HCl、H2SO4With any one in NaOH to adjust
The pH value of the mixture of the nanoparticle and the raw material is saved, and the pH value is in 1~14 range；
Quick-fried slurry progress pneumatic conveying drying is steamed by described, so that its moisture content is down to 5%-16%, obtains the nanoparticle/fiber
Composite material.
2. the preparation method of nanoparticle/fibrous composite according to claim 1, which is characterized in that the farming
Object waste includes straw, wheat straw, corn stover, cotton stem and bagasse, and the grass family weeds includes reed and awns bar.
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| CN107317034A (en) * | 2017-07-06 | 2017-11-03 | 深圳市国创珈伟石墨烯科技有限公司 | A kind of preparation, process for dispersing and the equipment of graphene/carbon nano-tube composite conducting slurry |
| CN108110133B (en) * | 2017-11-22 | 2021-03-16 | 浙江农林大学 | Layered two-dimensional nanosheet/carbonized fiber composite material and preparation method and application thereof |
| CN108656305B (en) * | 2018-05-17 | 2021-03-23 | 霸州市光洋人造板制造有限公司 | Environment-friendly flame-retardant non-glue fiberboard made of crop straws and preparation method thereof |
| CN109181038B (en) * | 2018-07-25 | 2020-05-19 | 大陆马牌轮胎（中国）有限公司 | Preparation method of modified white carbon black tread rubber |
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| CN102504558B (en) * | 2011-10-10 | 2013-11-27 | 华南理工大学 | Method for preparing carbon grain wrapped plant fiber stuffing in manner of steam explosion |
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