CN108000971A - A kind of air filter cloth of graphene-containing material and bamboo fiber - Google Patents

A kind of air filter cloth of graphene-containing material and bamboo fiber Download PDF

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Publication number
CN108000971A
CN108000971A CN201711244287.2A CN201711244287A CN108000971A CN 108000971 A CN108000971 A CN 108000971A CN 201711244287 A CN201711244287 A CN 201711244287A CN 108000971 A CN108000971 A CN 108000971A
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graphene
composite fibre
nano
bamboo fiber
filter cloth
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朱明君
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/107—Ceramic
    • B32B2264/108—Carbon, e.g. graphite particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Artificial Filaments (AREA)
  • Filtering Materials (AREA)

Abstract

This application involves a kind of graphene-containing material and the air filter cloth of bamboo fiber, the air filter cloth include HEPA layers, graphene layer, bamboo fiber layer, the HEPA layers of lower section is provided with graphene layer, bamboo fiber layer is provided with below graphene layer, the graphene layer is formed by the braiding of graphene composite fibre, which is specially graphene/LaTiO3/ polyaniline composite fibre.

Description

A kind of air filter cloth of graphene-containing material and bamboo fiber
Technical field
This application involves air filtration filter material field, more particularly to the air mistake of a kind of graphene-containing material and bamboo fiber Filter cloth.
Background technology
Air pollution, also known as atmosphere pollution, typically refer to due to mankind's activity or natural process cause Cucumber into Enter in air, show enough concentration, reach time enough, and therefore compromise the comfortable of the mankind, health and wellbeing or The phenomenon of environment, prevents air pollution from endangering people's life health, is primary and foremost purpose, air filtration filter material of the prior art, Although some harmful substances can be filtered, its mechanical property is not high, easily damages, and does not possess sterilization and antibacterial Ability, so protection filter capacity it is not notable.
The content of the invention
The present invention is intended to provide the air filter cloth of a kind of graphene-containing material and bamboo fiber, to solve set forth above ask Topic.
A kind of air filter cloth of graphene-containing material and bamboo fiber, the air mistake are provided in the embodiment of the present invention Filter cloth include HEPA layer, graphene layer, bamboo fiber layer, graphene layer is provided with below the HEPA layer, graphene layer lower section is set Bamboo fiber layer is equipped with, the graphene layer is formed by the braiding of graphene composite fibre, which is specially Graphene/LaTiO3/ polyaniline composite fibre.
The technical solution that the embodiment of the present invention provides can include the following benefits：
The air filter cloth of the present invention includes graphene composite fibre, which has excellent conduction Property, while intensity is high, tension, shock resistance are good, and the air filter cloth being made of it has excellent mechanical property, in addition, The graphene composite fibre also has the function of obvious, electromagnetic shielding of antibacterial effect etc., realizes the macroscopic view application of graphene.
The aspect and advantage that the application adds will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the application.It should be appreciated that the general description and following detailed description of the above are only It is exemplary and explanatory, the application can not be limited.
Brief description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not form any limit to the present invention System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings Other attached drawings.
Fig. 1 is the structure diagram of air filter cloth of the present invention；
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar key element.Following exemplary embodiment Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Embodiments herein is related to a kind of air filter cloth of graphene-containing material and bamboo fiber, the air filter cloth Including HEPA layers 1, graphene layer 2, bamboo fiber layer 3, which is provided with graphene layer 2, the lower section of graphene layer 2 Bamboo fiber layer 3 is provided with, for graphene layer 2 between HEPA layers 1 and bamboo fiber layer 3, bamboo fiber layer 3 uses bamboo fibril Tie up compressing or compressing with the mixing of other fibers.
Most basic construction unit of the graphene as all carbon materials, has real monoatomic layer thickness and stringent two Structure is tieed up, there is very high mechanical strength, elasticity, thermal conductivity, electric conductivity, graphene is a kind of very excellent new of physical and chemical performance Section bar material, its self-discovery beginning just cause extensive concern.In practical applications, nano-graphene material is changed into macroscopic view Structural material undoubtedly has practical significance.Some researches show that graphene can prepare high-performance as a kind of preferably filler Fiber, aeroge, film, composite fibre etc., graphene composite fibre excellent combination property.
The graphene layer 2 by graphene composite fibre braiding form, the graphene composite fibre be specially graphene/ LaTiO3/ polyaniline composite fibre, further includes carbon nanotubes, TiO in the graphene composite fibre2Nano-particle, Fe3O4Nanometer Particle.
LaTiO3Nano-powder is compound with graphene, plays unexpected technique effect so that composite fibre is led Electrical property greatly increases, its electrical conductivity can reach 10-5More than S/cm, and add the intensity of composite fibre.
Meanwhile TiO2It is a kind of important semi-conducting material, nano-TiO2With many unique properties, commonly used in anti- Corrosion material, catalysis material etc..As photocatalyst material, TiO2Act on, receive with light degradation organic matter, catalytically bactericidal process etc. Rice TiO2Organic matter can be made to degrade under the illumination of certain wavelength；In technical scheme, in graphene composite fibre Middle addition TiO2Nano-particle, the TiO2Nano-particle is uniformly distributed in composite fibre so that the performance of graphene composite fibre is excellent Different antibiotic property.Carbon nanotubes is a kind of important monodimension nanometer material, has many excellent properties, can regard as by piece The nanoscale coaxial clyinder for the seamless hollow that the graphite of Rotating fields is rolled into, its resistance to strong acid, highly basic, heat endurance is good, its axial direction Electric conductivity is good, has extensive use in Field Electron Emission, hydrogen storage etc.；In technical scheme, answered in graphene Carbon nanotubes is added in condensating fiber, which arranges along composite fibre direction so that composite graphite alkene fiber axially shows Excellent electric conductivity, intensity, toughness.Fe3O4It is a kind of important absorbing material with high magnetic conductivity, the graphene of the application In composite fibre, by adding Fe3O4Nano-particle, it is combined with graphene, carbon nanotubes so that the compound fibre of the graphene The existing good absorbing property of dimension table, has certain screening ability to electromagnetic wave.
By combinations thereof, unexpected beneficial effect is played, which has excellent conduction Property, while intensity is high, tension, shock resistance are good, and the air filter cloth being made of it has excellent mechanical property, in addition, The graphene composite fibre also has the function of obvious, electromagnetic shielding of antibacterial effect etc., realizes the macroscopic view application of graphene.
Wherein, in the graphene composite fibre, the graphene, LaTiO3, carbon nanotubes, TiO2Nano-particle, Fe3O4Nano-particle quality accounting is followed successively by 5wt.%, 1.5~1.8wt.%, 1wt.%, 1.4wt.%, 2.7wt.%, surplus For polyaniline；The fibre diameter of the graphene composite fibre is 200~500nm, the TiO2The particle diameter of nano-particle is 20nm, The Fe3O4The particle diameter of nano-particle is 50nm.
The preparation process of the graphene composite fibre is as follows：
Step 1, using improved Hummers methods prepare graphene oxide (GO)；
Step 2, prepare LaTiO3Nano-powder：The LaTiO3The preparation process of nano-powder is：10g nitric acid is weighed first Lanthanum, then measures lanthanum nitrate, Titanium Nitrate and citric acid according to stoichiometric ratio, it is thoroughly mixed in example water, 80 Heat and be stirred continuously until solution is changed into colloidal sol in DEG C water-bath, a small amount of ethylene glycol is added in whipping process, colloidal sol is through old Change forms gel, then dries, grinds, and anneal 5h at 900 DEG C, obtains LaTiO3Nano-powder.
Step 3, mix polyaniline particles with the graphene oxide solution of 25mg/ml, is 85 DEG C, is stirred continuously in temperature In the case of, it is proportionally added into LaTiO3Nano-powder, carbon nanotubes, TiO2Nano-particle, Fe3O4Nano-particle, is then constantly stirred Processing 30h is mixed, obtains graphene oxide/LaTiO3/ polyaniline composite spinning solution；
Step 4, using method of electrostatic spinning, prepare graphene oxide/LaTiO3/ polyaniline composite fibre；
Step 5, by obtained graphene oxide/LaTiO3/ polyaniline composite fibre, is 150 DEG C in temperature with hydroiodic acid Under the conditions of carry out reduction treatment 30h, washed, dry, obtain the graphene composite fibre.
Wherein, in step 3, the solvent of graphene oxide is tea solution, is specially：By 4g tealeaves in 100ml deionized waters In boil 30min at 100 DEG C, after cooling with acetate fiber membrane filtration, obtain tea solution；The tea that graphene oxide is put into In solution, the ultrasonic disperse 30min at 50 DEG C, it is 25mg/ml graphene oxide solutions to obtain concentration.
In step 3, mixing speed 1000r/min.
In step 4, electrostatic spinning process is：Voltage 21kV, injection rate 0.9ml/h, it is 14.5cm to receive distance, is spun The silk time is 10h, and aluminium tinfoil is collected into composite fibre and is placed in 70 DEG C of constant temperature drying box as base material is received, dry 2h, Obtain graphene composite fibre.
In step 5, the washing process is：Using absolute ethyl alcohol and example water is removed as detergent, each washing respectively successively Three times, the dry treatment process is that drying temperature is 98 DEG C, drying time 5h.
In above process, above-mentioned carbon nanotubes, TiO2Nano-particle, Fe3O4Nano-particle, can as Nano filling To effectively improve the intensity of the graphene composite fibre, electric conductivity, hydrophobicity etc., unexpected technique effect is played, Effectively improve the comprehensive performance of graphene composite fibre.
Embodiment 1
In the graphene composite fibre, the graphene, LaTiO3, carbon nanotubes, TiO2Nano-particle, Fe3O4Nanometer Mass particle accounting is followed successively by 5wt.%, 1.5wt.%, 1wt.%, 1.4wt.%, 2.7wt.%, and surplus is polyaniline；It is described The fibre diameter of graphene composite fibre is 200~500nm, the TiO2The particle diameter of nano-particle is 20nm, the Fe3O4Nanometer The particle diameter of particle is 50nm.
The preparation process of the graphene composite fibre is as follows：
Step 1, using improved Hummers methods prepare graphene oxide (GO)；
Step 2, prepare LaTiO3Nano-powder：The LaTiO3The preparation process of nano-powder is：10g nitric acid is weighed first Lanthanum, then measures lanthanum nitrate, Titanium Nitrate and citric acid according to stoichiometric ratio, it is thoroughly mixed in example water, 80 Heat and be stirred continuously until solution is changed into colloidal sol in DEG C water-bath, a small amount of ethylene glycol is added in whipping process, colloidal sol is through old Change forms gel, then dries, grinds, and anneal 5h at 900 DEG C, obtains LaTiO3Nano-powder.
Step 3, mix polyaniline particles with the graphene oxide solution of 25mg/ml, is 85 DEG C, is stirred continuously in temperature In the case of, it is proportionally added into LaTiO3Nano-powder, carbon nanotubes, TiO2Nano-particle, Fe3O4Nano-particle, is then constantly stirred Processing 30h is mixed, obtains graphene oxide/LaTiO3/ polyaniline composite spinning solution；
Step 4, using method of electrostatic spinning, prepare graphene oxide/LaTiO3/ polyaniline composite fibre；
Step 5, by obtained graphene oxide/LaTiO3/ polyaniline composite fibre, is 150 DEG C in temperature with hydroiodic acid Under the conditions of carry out reduction treatment 30h, washed, dry, obtain the graphene composite fibre.
Wherein, in step 3, the solvent of graphene oxide is tea solution, is specially：By 4g tealeaves in 100ml deionized waters In boil 30min at 100 DEG C, after cooling with acetate fiber membrane filtration, obtain tea solution；The tea that graphene oxide is put into In solution, the ultrasonic disperse 30min at 50 DEG C, it is 25mg/ml graphene oxide solutions to obtain concentration.
In step 3, mixing speed 1000r/min.
In step 4, electrostatic spinning process is：Voltage 21kV, injection rate 0.9ml/h, it is 14.5cm to receive distance, is spun The silk time is 10h, and aluminium tinfoil is collected into composite fibre and is placed in 70 DEG C of constant temperature drying box as base material is received, dry 2h, Obtain graphene composite fibre.
In step 5, the washing process is：Using absolute ethyl alcohol and example water is removed as detergent, each washing respectively successively Three times, the dry treatment process is that drying temperature is 98 DEG C, drying time 5h.
Embodiment 2
In the graphene composite fibre, the graphene, LaTiO3, carbon nanotubes, TiO2Nano-particle, Fe3O4Nanometer Mass particle accounting is followed successively by 5wt.%, 1.8wt.%, 1wt.%, 1.4wt.%, 2.7wt.%, and surplus is polyaniline；It is described The fibre diameter of graphene composite fibre is 200~500nm, the TiO2The particle diameter of nano-particle is 20nm, the Fe3O4Nanometer The particle diameter of particle is 50nm.
The preparation process of the graphene composite fibre is as follows：
Step 1, using improved Hummers methods prepare graphene oxide (GO)；
Step 2, prepare LaTiO3Nano-powder：The LaTiO3The preparation process of nano-powder is：10g nitric acid is weighed first Lanthanum, then measures lanthanum nitrate, Titanium Nitrate and citric acid according to stoichiometric ratio, it is thoroughly mixed in example water, 80 Heat and be stirred continuously until solution is changed into colloidal sol in DEG C water-bath, a small amount of ethylene glycol is added in whipping process, colloidal sol is through old Change forms gel, then dries, grinds, and anneal 5h at 900 DEG C, obtains LaTiO3Nano-powder.
Step 3, mix polyaniline particles with the graphene oxide solution of 25mg/ml, is 85 DEG C, is stirred continuously in temperature In the case of, it is proportionally added into LaTiO3Nano-powder, carbon nanotubes, TiO2Nano-particle, Fe3O4Nano-particle, is then constantly stirred Processing 30h is mixed, obtains graphene oxide/LaTiO3/ polyaniline composite spinning solution；
Step 4, using method of electrostatic spinning, prepare graphene oxide/LaTiO3/ polyaniline composite fibre；
Step 5, by obtained graphene oxide/LaTiO3/ polyaniline composite fibre, is 150 DEG C in temperature with hydroiodic acid Under the conditions of carry out reduction treatment 30h, washed, dry, obtain the graphene composite fibre.
Wherein, in step 3, the solvent of graphene oxide is tea solution, is specially：By 4g tealeaves in 100ml deionized waters In boil 30min at 100 DEG C, after cooling with acetate fiber membrane filtration, obtain tea solution；The tea that graphene oxide is put into In solution, the ultrasonic disperse 30min at 50 DEG C, it is 25mg/ml graphene oxide solutions to obtain concentration.
In step 3, mixing speed 1000r/min.
In step 4, electrostatic spinning process is：Voltage 21kV, injection rate 0.9ml/h, it is 14.5cm to receive distance, is spun The silk time is 10h, and aluminium tinfoil is collected into composite fibre and is placed in 70 DEG C of constant temperature drying box as base material is received, dry 2h, Obtain graphene composite fibre.
In step 5, the washing process is：Using absolute ethyl alcohol and example water is removed as detergent, each washing respectively successively Three times, the dry treatment process is that drying temperature is 98 DEG C, drying time 5h.
It the following is the performance indicator of graphene composite fibre in embodiment 1~2：
Electrical conductivity S/cm Fracture strength cN/dtex Elongation at break %
Embodiment 1 1.6×10-5 8.3 22.9
Embodiment 2 1.8×10-5 8.7 24.6
The foregoing is merely the preferred mode of the present invention, it is not intended to limit the invention, it is all in the spiritual and former of the present invention Within then, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.

Claims (10)

1. the air filter cloth of a kind of graphene-containing material and bamboo fiber, the air filter cloth include HEPA layers, graphene layer, Bamboo fiber layer, the HEPA layers of lower section are provided with graphene layer, are provided with bamboo fiber layer below graphene layer, its feature exists Formed in, the graphene layer by the braiding of graphene composite fibre, the graphene composite fibre be specially graphene/ LaTiO3/ polyaniline composite fibre.
2. the air filter cloth of a kind of graphene-containing material according to claim 1 and bamboo fiber, it is characterised in that institute State and carbon nanotubes, TiO are further included in graphene composite fibre2Nano-particle, Fe3O4Nano-particle.
3. the air filter cloth of a kind of graphene-containing material according to claim 2 and bamboo fiber, it is characterised in that institute State in graphene composite fibre, the graphene, LaTiO3, carbon nanotubes, TiO2Nano-particle, Fe3O4Nano-particle quality accounts for Than being followed successively by 5wt.%, 1.5~1.8wt.%, 1wt.%, 1.4wt.%, 2.7wt.%, surplus is polyaniline.
4. the air filter cloth of a kind of graphene-containing material according to claim 2 and bamboo fiber, it is characterised in that institute The fibre diameter for stating graphene composite fibre is 200~500nm.
5. the air filter cloth of a kind of graphene-containing material according to claim 2 and bamboo fiber, it is characterised in that institute State TiO2The particle diameter of nano-particle is 20nm, the Fe3O4The particle diameter of nano-particle is 50nm.
6. the air filter cloth of a kind of graphene-containing material according to claim 2 and bamboo fiber, it is characterised in that institute The preparation process for stating graphene composite fibre is as follows：
Step 1, using improved Hummers methods prepare graphene oxide (GO)；
Step 2, prepare LaTiO3Nano-powder：10g lanthanum nitrates are weighed first, then measure lanthanum nitrate, nitre according to stoichiometric ratio Sour titanium and citric acid, make it be thoroughly mixed in example water, heat and are stirred continuously until solution becomes in 80 DEG C of water-baths For colloidal sol, a small amount of ethylene glycol is added in whipping process, the aged formation gel of colloidal sol, then dries, grinds, moved back at 900 DEG C Fiery 5h, obtains LaTiO3Nano-powder；
Step 3, mix polyaniline particles with the graphene oxide solution of 25mg/ml, is 85 DEG C, is stirred continuously situation in temperature Under, it is proportionally added into LaTiO3Nano-powder, carbon nanotubes, TiO2Nano-particle, Fe3O4Nano-particle, is then stirred continuously place 30h is managed, obtains graphene oxide/LaTiO3/ polyaniline composite spinning solution；
Step 4, using method of electrostatic spinning, prepare graphene oxide/LaTiO3/ polyaniline composite fibre；
Step 5, by obtained graphene oxide/LaTiO3/ polyaniline composite fibre, is 150 DEG C of conditions in temperature with hydroiodic acid Lower progress reduction treatment 30h, in washed, drying, obtains the graphene composite fibre.
7. the air filter cloth of a kind of graphene-containing material according to claim 6 and bamboo fiber, it is characterised in that step In rapid 3, the solvent of graphene oxide is tea solution, is specially：4g tealeaves is boiled in 100ml deionized waters at 100 DEG C 30min, after cooling with acetate fiber membrane filtration, obtains tea solution；In the tea solution that graphene oxide is put into, 50 Ultrasonic disperse 30min at DEG C, it is 25mg/ml graphene oxide solutions to obtain concentration.
8. the air filter cloth of a kind of graphene-containing material according to claim 6 and bamboo fiber, it is characterised in that step In rapid 3, the mixing speed of the stir process is 1000r/min.
9. the air filter cloth of a kind of graphene-containing material according to claim 6 and bamboo fiber, it is characterised in that step In rapid 4, electrostatic spinning process is：Voltage 21kV, injection rate 0.9ml/h, it is 14.5cm to receive distance, and the spinning time is 10h, aluminium tinfoil are collected into composite fibre and are placed in 70 DEG C of constant temperature drying box as base material is received, and dry 2h, obtains graphite Alkene composite fibre.
10. the air filter cloth of a kind of graphene-containing material according to claim 6 and bamboo fiber, it is characterised in that In step 5, the washing process is：Using absolute ethyl alcohol and example water is removed as detergent, and each washing is three times, described respectively successively Dry treatment process be, drying temperature be 98 DEG C, drying time 5h.
CN201711244287.2A 2017-11-30 2017-11-30 A kind of air filter cloth of graphene-containing material and bamboo fiber Pending CN108000971A (en)

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