CN106621840B - A kind of function filtering material capable of releasing far infrared ray and preparation method thereof - Google Patents

A kind of function filtering material capable of releasing far infrared ray and preparation method thereof Download PDF

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Publication number
CN106621840B
CN106621840B CN201611269801.3A CN201611269801A CN106621840B CN 106621840 B CN106621840 B CN 106621840B CN 201611269801 A CN201611269801 A CN 201611269801A CN 106621840 B CN106621840 B CN 106621840B
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far infrared
infrared ray
releasing far
roller
substrate
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CN106621840A (en
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丁彬
李玉瑶
赵兴雷
蒋攀
华婷
廖亚龙
印霞
孙刚
俞建勇
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Donghua University
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Donghua University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • 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
    • 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
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0079—Manufacture of membranes comprising organic and inorganic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/28—Polymers of vinyl aromatic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/34—Polyvinylidene fluoride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/36—Polytetrafluoroethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/38—Polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals; Polyalkenylketals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/48—Polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/39—Electrospinning

Abstract

The present invention provides a kind of function filtering materials and preparation method thereof capable of releasing far infrared ray.The function filtering material capable of releasing far infrared ray, it is characterized in that, nano fibrous membrane including substrate and on substrate, the nano fibrous membrane includes at least one level unit, each level unit include plane layer made of being assembled in a jumble as nanofiber and aligned as nanofiber pile up made of cavity structure, it is filled with substance capable of releasing far infrared ray in part or all of cavity structure, nanofiber is also doped with substance capable of releasing far infrared ray.The function filtering material of releasable far infrared of the invention has the advantages that filter efficiency is high, resistance pressure drop is big, far infrared transmissivity is high, has broad application prospects in field of air filtration.

Description

A kind of function filtering material capable of releasing far infrared ray and preparation method thereof
Technical field
The invention belongs to field of air filtration, are related to a kind of function filtering material, more particularly to a kind of releasable remote red Function filtering material of outside line and preparation method thereof.
Background technique
Wreaking havoc for haze brings grave danger to human health, and adopting an effective measure, it is extremely urgent purify to air. Existing purification air filtering material only has the function of filtration of particulate matters mostly, and that there are filter efficiencies is low, resistance pressure drop is big Defect.The preparation method of one kind of the invention function filtering material capable of releasing far infrared ray makes full use of nano-fiber material The advantages of diameter is thin, aperture is small, large specific surface area, and Effective Regulation has been carried out to structure, obtain the nanofiber with cavity Function filtering material go in addition except that particulate matter can be carried out efficient low-resistance, also have far infrared release function, except can ensure people Health-care effect can also be provided except invading and harassing from haze in body.
In the technology that existing air filting material is related to, including " filter nonwoven fabric capable of releasing negative ions " (ZL201110407879.8), " a kind of mono-layer propping multi-functional air filter membrane " (CN201610244080.4), " light transmission, Ventilative, electrostatic repulsion PM2.5 air-filtering membrane and preparation method " (CN201510307864.2), " lower resistance high-efficiency air filtering Device " (CN201520260540.3), " the Vehicular air filter of reusable replaceable air filting material " (CN201420749917.7) etc. it is directed to macroscopically improving air filtration effect, is not directed to construct this skill using nanofiber The specific structure of art.In the technology that existing far-infrared material is related to, including " a kind of far-infrared warm fiber with anion " (CN201620180415.6), " far infrared ceramic micro powder and thermoplastic polyurethane resin compound health material " (CN201310173454.4), " nano-meter far infrared cloth " (CN200810134322.X), " nano far-infrared ray sticking cloth " (CN200710038956.0), " nanocomposite and preparation method thereof that can increase remote production efficiency of far infrared ray " (CN200910163167.9) etc. special construction all is not constructed to enhance its far infrared transmission effect in material internal, and be not directed to Far-infrared functional substance is used for field of air filtration.
In conclusion existing air filting material exists, filter efficiency is low, resistance pressure drop is big, the problems such as having a single function, To overcome disadvantages mentioned above, the present invention provides a kind of preparation method of function filtering material capable of releasing far infrared ray.
Summary of the invention
The purpose of the present invention is overcoming existing air filting material to have a single function, filter efficiency is low, resistance pressure drop is big lacks Point makes up the blank that far-infrared material is applied in field of air filtration, provides a kind of function filter material capable of releasing far infrared ray Material and preparation method thereof.
In order to achieve the above object, the present invention provides a kind of function filtering material capable of releasing far infrared ray, features It is, the nano fibrous membrane including substrate and on substrate, the nano fibrous membrane includes at least one level list Member, each level unit include plane layer made of being assembled in a jumble as nanofiber and on plane layer by Nanowire Cavity structure made of dimension is piled up, part or all of cavity structure is interior to be filled with substance capable of releasing far infrared ray, nanofiber It is also doped with substance capable of releasing far infrared ray.
Preferably, the level unit is set gradually from top to bottom.
Preferably, the nano fibrous membrane further include one assembled in a jumble as nanofiber made of plane layer, this is flat Surface layer is set on the level unit of top side.
Preferably, nanofiber aligns in the cavity structure.
Preferably, the substrate is mesh, and the shape in hole is triangle, square, rectangle or circle, and grammes per square metre is 10~300g/m2, material is polypropylene, polyethylene, polypropylene, polyethylene, polyethylene terephthalate, polyamide fibre, fiber Element, polyacrylonitrile, polyvinyl chloride or metal.
Preferably, the substrate mesh size is 1~25mm2。
Preferably, the porosity of the nano fibrous membrane is 60~99.99%, and average pore size is 1~10 μm, and grammes per square metre is 0.01~70g/m2, bulk density is 0.006~0.084g/cm3, the number of level unit is 1~10 in nano fibrous membrane.
Preferably, the fibre diameter of the plane layer is 0.02~20 μm, and porosity is 60~99.99%, average hole Diameter is 1~10 μm, and bulk density is 0.006~0.084g/cm3。
Preferably, the quantity of each level unit cavity structure is 2.5 × 104~5 × 106A/cm2, cavity Height be 5~50 μm, cross sectional shape is that round, square, rectangle or triangle, area of section are 20~4000 μm2。
Preferably, substance capable of releasing far infrared ray in the cavity structure be silicon carbide, it is tourmaline, medical stone, remote At least one of infra-red china and metal oxide, the form of substance are graininess or short fibre, and filling can in each cavity The material mass for discharging far infrared is 0.1~1000 μ g.
Preferably, the cavity structure filled with substance capable of releasing far infrared ray accounts for the ratio of all cavity structures It is 10%~90%, distribution form is to be uniformly distributed.
Preferably, the described cavity structure filled with substance capable of releasing far infrared ray and not capable of releasing far infrared ray The cavity structure interval of substance is arranged.
Preferably, the chemical component of the nanofiber is FEP fluorinated ethylene propylene copolymer, perfluoroethylene-propylene, poly- third Alkene, soluble poly tetrafluoroethene, Kynoar, polyvinyl butyral, polystyrene, polyester, polyvinyl acetate, nylon 6, Nylon66 fiber, polymethyl methacrylate, polyaniline, polyethylene glycol oxide, polyvinylpyrrolidone, polyacrylonitrile, gathers polyvinyl alcohol Caprolactone, polyethylene terephthalate, polytetrafluoroethylene (PTFE), polyethylene glycol, polyurethane, polysulfones, polyether sulfone, Kynoar- Hexafluoropropene, Kynoar-one of tetrafluoroethylene-perfluoro methyl vinyl ether and Kynoar-chlorotrifluoroethylene Or more.
Preferably, the mass ratio of the substance capable of releasing far infrared ray of the described nanofiber doping be 0.01%~ 5%.
Preferably, the function filtering material capable of releasing far infrared ray is to the filter efficiency of 0.3~10 μm of particle 80~100%, resistance pressure drop is 10~100Pa, and far infrared emissivity is 0.8~0.99.
The present invention also provides the preparation methods of above-mentioned function filtering material capable of releasing far infrared ray, characterized in that Include:
Step 1: it disperses substance capable of releasing far infrared ray in solvent, forms dispersion liquid, it will be capable of releasing far infrared ray Substance be scattered in solvent, be added polymer, stirring form spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device, the electrostatic spinning reception device includes roller, rolling The surface of cylinder is equipped with the protrusion of multiple hollow shapes, raised one side and cylinder contact, can be connected to rolling with the contact surface of roller Cylinder is internal, the opposition face closure in the face, and in addition to this two sides, other faces are equipped with hole, and the inside of roller is hollow structure, and one end connects It is connected to high-temperature steam generation apparatus, other end closing；Substrate is placed on roller, and the protrusion on the hole and roller of substrate is mutually embedding It closes, etching steam is sent into roller from high-temperature steam generation apparatus, steam is discharged from the hole in protrusion；
Step 3: at least one level unit, the forming method of each level unit of nano fibrous membrane are formed on substrate It include: spinning solution first to be carried out electrostatic spinning to form plane layer, then spinning solution is carried out electrostatic spinning and forms cavity structure Cavity wall, then by by dispersion liquid progress electrostatic spray substance capable of releasing far infrared ray is filled into cavity structure；Finally Obtain function filtering material capable of releasing far infrared ray.
Preferably, the step 3 further includes that spinning solution is carried out electrostatic spinning to form plane layer.
Preferably, the substance capable of releasing far infrared ray be silicon carbide, tourmaline, medical stone, far-infrared ceramic and At least one of metal oxide, partial size are 0.01~3 μm, and content is 0.01~20wt% in dispersion liquid, in spinning solution Content is 0.01~20wt%.
Preferably, the solvent is formic acid, tetrahydrofuran, water, n,N-Dimethylformamide, N, N- dimethylacetamide Amine, acetone, chloroform, cresols, dimethyl sulfoxide, methanol, ethyl alcohol, propyl alcohol, isopropanol, butanol, isobutanol, toluene, N- methyl pyrrole One of pyrrolidone, methyl ethyl ketone and methyl ethyl ketone or more.
Preferably, it is stirred by ultrasonic after dispersing substance capable of releasing far infrared ray in solvent, the ultrasound The time of stirring is 5~60min, and the time that stirring forms uniform spinning solution is 1~50h.
Preferably, the polymer is FEP fluorinated ethylene propylene copolymer, perfluoroethylene-propylene, polypropylene, soluble poly four Vinyl fluoride, Kynoar, polyvinyl butyral, polystyrene, polyester, polyvinyl acetate, nylon 6, nylon66 fiber, polyethylene Alcohol, polyaniline, polyethylene glycol oxide, polyvinylpyrrolidone, polyacrylonitrile, polycaprolactone, gathers to benzene polymethyl methacrylate Dioctyl phthalate second diester, polyethylene glycol, polyurethane, polysulfones, polyether sulfone, Kynoar-hexafluoropropene, gathers partially polytetrafluoroethylene (PTFE) Vinyl fluoride-one of tetrafluoroethylene-perfluoro methyl vinyl ether and Kynoar-chlorotrifluoroethylene or more.
Preferably, the mass fraction of the polymer is 8~40wt%.
Preferably, the electrospinning parameters are 10~100kV of voltage, receive 5~150cm of distance, rate of flooding 0.1 ~10mL/h, 20~200r/min of drum rotation speed, 10~40 DEG C of temperature, humidity 10~99%, 10~300min of time.
Preferably, the cross section of the roller is circle, and sectional area is 100~1000cm2, length L1 be 30~ 100cm, material are iron, aluminium, copper or other conductive materials；The wall thickness T1 of roller is 2~20cm；The protrusion rule row It is listed in the surface of roller, raised shape is triangular prism, square, cuboid or cylindrical body, and material is identical as roller；Described The height H of protrusion is 0.5~2mm, and sectional area is 0.25~9mm2, thickness T2 is 0.1~0.5mm, and two neighboring protrusion is being rolled Space D on cylinder is 0.5~1mm；The shape in the hole is round, square, rectangle or triangle, area is 0.01~ 1mm2。
Preferably, the ingredient of the described etching steam is that formic acid solution, acetic acid solution, sodium hydroxide solution, copper sulphate are molten Liquid, sodium carbonate liquor or carbonic acid magnesium solution, concentration are 10%~80%, and it is 0.1~3m/s that steam, which is sent into speed,.
Preferably, the feeding mode of the etching steam is that interval is sent into or is continuously introduced into, the total time that interval is sent into For 10~300min, be sent into: the time scale of non-feeding is 1:1,1:2,1:3,1:4,4:1,3:1,2:1；Be continuously introduced into when Between be 10~300min, steam from protrusion hole in rate of release be 0.1~3m/s.
Compared with prior art, the beneficial effects of the present invention are:
(1) the advantages of nano-fiber material fibre diameter is thin, aperture is small, large specific surface area can sufficiently make air filting material While keeping filtration efficiency, the resistance pressure drop of material is significantly reduced, to meet air filting material efficient low-resistance Performance requirement, in addition, the high-specific surface area of nanofiber can carry more far-infrared functional substances, the far infrared of reinforcing material Emissivity.
(2) cavity structure of the invention can further enhance far infrared transmissivity, while cavity structure is compared with nanofiber shape At aperture it is big, air-flow speed when by cavity can be made to significantly reduce, to reduce air flow resistance.
(3) compound tense is being carried out with the mesh substrate with smooth surface, micromodule can fill up mesh, avoid poroid base Fiber is embedded near the silk thread of material.
(4) etching steam is sent into rolling as etch media by the available specific solvent steam reacted with mesh substrate Cylinder, is discharged on micropore, performs etching to mesh substrate, increases the roughness of mesh substrate, to enhance nanofiber In the binding strength of substrate surface.
(3) it is big, remote red to have filter efficiency height, resistance pressure drop to function filtering material capable of releasing far infrared ray of the invention The advantages that outer emissivity is high, has broad application prospects in field of air filtration.
Detailed description of the invention
Fig. 1 is present invention function filtering material structural schematic diagram capable of releasing far infrared ray
Fig. 2 is the distribution schematic diagram of functional mass on present invention function filtering material nanofiber capable of releasing far infrared ray
Fig. 3 is electrostatic spinning reception device schematic diagram.
Fig. 4 is raised enlarged drawing.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited Range.
Embodiment 1
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Made of plane layer 12 made of 14 mixed and disorderly aggregations and being aligned on plane layer 12 as nanofiber 14 are piled up Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate 11 is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, gram Weight is 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 99.99%, average pore size is 1 μm, grammes per square metre 0.1g/m2, bulk density 0.006g/cm3, totally 1 level unit.
The fibre diameter of plane layer is 0.02 μm in each level unit of nano fibrous membrane, and porosity 99.99% is average Aperture is 1 μm, bulk density 0.006g/cm3；The quantity of each level unit cavity structure is 5 × 106A/cm2, cavity The height of structure is 5 μm, and cross sectional shape is triangle, and area of section is 50 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is silicon carbide, and the form of substance is graininess, often The material mass capable of releasing far infrared ray filled in a cavity structure is 0.1 μ g.Filled with substance capable of releasing far infrared ray Cavity structure account for all cavity structures ratio be 10%, the cavity structure being filled is uniformly distributed.It can be released filled with having It puts the cavity structure 13 of the substance of far-infrared functional and is not filled with the cavity structure for having the substance of releasable far-infrared functional 13 interval settings.
The chemical component of nanofiber is FEP fluorinated ethylene propylene copolymer, the matter of the far infrared h substance of nanofiber doping Amount ratio is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: dispersing 30mL solvent N, N- for 0.1g substance silicon carbide (partial size 400nm) capable of releasing far infrared ray In dimethylformamide, 8h is stirred, forms dispersion liquid, (partial size is by substance silicon carbide 0.1g capable of releasing far infrared ray It 400nm) is scattered in 30mL solvent n,N-Dimethylformamide, after 10min is stirred by ultrasonic, the copolymerization of 10g fluorinated ethylene propylene (FEP) is added Object (Dongguan great mansion Wei plastic material Co., Ltd, 200000 dalton of weight average molecular weight), stirring 8h form spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm, and the shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；A level unit, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；Spinning solution is carried out by electrostatic spinning using conventional electrostatic spinning apparatus again and forms plane layer 12, electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtain function filtering capable of releasing far infrared ray Material.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 10 μm of particles 80%, resistance pressure drop 10Pa, far infrared emissivity are 0.8.
Embodiment 2
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Made of plane layer 12 made of 14 mixed and disorderly aggregations and being aligned on plane layer 12 as nanofiber 14 are piled up Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate is Huayang F100 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre For 100g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 99.9%, Average pore size is 1.5 μm, grammes per square metre 1g/m2, bulk density 0.01g/cm3, totally 1 level unit.
The fibre diameter of plane layer is 1 μm in each level unit of nano fibrous membrane, porosity 99.9%, average pore size It is 1.5 μm, bulk density 0.01g/cm3；The quantity of each level unit cavity structure is 4 × 106A/cm2, cavity knot The height of structure is 5 μm, and cross sectional shape is rectangle, and area of section is 100 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is tourmaline, and the form of substance is graininess, often The material mass capable of releasing far infrared ray filled in a cavity structure is 1 μ g.Filled with substance capable of releasing far infrared ray The ratio that cavity structure accounts for all cavity structures is 15%, and the cavity structure being filled is uniformly distributed.It is releasable filled with having The cavity structure 13 of the substance of far-infrared functional and it is not filled with the cavity structure 13 for having the substance of releasable far-infrared functional Interval setting.
The chemical component of nanofiber is polystyrene, the mass ratio of the far infrared h substance adulterated on nanofiber It is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: dispersing 30mL solvent N, N- for 0.1g substance tourmaline (partial size 400nm) capable of releasing far infrared ray In dimethyl acetamide, 8h is stirred, forms dispersion liquid, (partial size is by substance tourmaline 0.1g capable of releasing far infrared ray It 400nm) is scattered in 30mL solvent n,N-dimethylacetamide, after 10min is stirred by ultrasonic, (the Jiangsu match of 10g polystyrene is added Baolong GP525,250000 dalton of weight average molecular weight), stirring 8h forms spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；；A level unit, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 40kV receives distance 15cm, rate of flooding 1mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 70cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 40kV receives distance 15cm, is filled Speed 1mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；Spinning solution is carried out by electrostatic spinning using conventional electrostatic spinning apparatus again and forms plane layer 12, electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtain function filtering capable of releasing far infrared ray Material.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 10 μm of particles 85%, resistance pressure drop 10Pa, far infrared emissivity are 0.81.
Embodiment 3
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Made of plane layer 12 made of 14 mixed and disorderly aggregations and being aligned on plane layer 12 as nanofiber 14 are piled up Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.Substrate is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanometer Tunica fibrosa porosity is 99%, and average pore size is 2.5 μm, grammes per square metre 5g/m2, bulk density 0.015g/cm3, totally 2 levels Unit is set gradually from top to bottom.
The fibre diameter of plane layer is 2 μm in each level unit of nano fibrous membrane, porosity 99%, and average pore size is 2.5 μm, bulk density is 0.006~0.084g/cm3；The quantity of each level unit cavity structure is 3.5 × 106A/ cm2, the height of cavity structure is 5 μm, and cross sectional shape is square, and area of section is 200 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is medical stone, and the form of substance is graininess, often The material mass capable of releasing far infrared ray filled in a cavity structure is 2 μ g.Filled with substance capable of releasing far infrared ray The ratio that cavity structure accounts for all cavity structures is 20%, and the cavity structure being filled is uniformly distributed.
The chemical component of fiber is nylon 6, and the mass ratio of the far infrared h substance adulterated on nanofiber is 0.5%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance medical stone 0.1g capable of releasing far infrared ray, (partial size is that (200nm) is scattered in 30mL solvent four In hydrogen furans, 8h is stirred, forms dispersion liquid, substance medical stone (partial size 200nm) 0.1g capable of releasing far infrared ray is dispersed In 30mL solvents tetrahydrofurane, after 10min is stirred by ultrasonic, 20g nylon 6 (Aladdin P129923, weight average molecular weight is added 200000 dalton), stirring 8h forms spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；2 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；So circulation 2 times, then spinning solution is carried out by Static Spinning using conventional electrostatic spinning apparatus Silk forms plane layer 12, and electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtains releasable far infrared The function filtering material of line.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 10 μm of particles 90%, resistance pressure drop 15Pa, far infrared emissivity are 0.82.
Embodiment 4
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Plane layer 12 made of 14 mixed and disorderly aggregations and set on plane layer 12 it is supreme aligned as nanofiber 14 pile up made of Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate is Huayang F80 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre is 80g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 95%, average hole Diameter is 3 μm, grammes per square metre 10g/m2, bulk density 0.02g/cm3, totally 2 level units, set gradually from top to bottom.
The fibre diameter of plane layer is 3 μm in each level unit of nano fibrous membrane, and porosity is 60~99.99%, is put down Equal aperture is 1~10 μm, and bulk density is 0.006~0.084g/cm3；The quantity of each level unit cavity structure be 3 × 106A/cm2, the height of cavity structure is 5 μm, and cross sectional shape is circle, and area of section is 300 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is far-infrared ceramic, and the form of substance is particle Shape, the interior material mass capable of releasing far infrared ray filled of each cavity structure is 5 μ g.Filled with object capable of releasing far infrared ray The ratio that the cavity structure of matter accounts for all cavity structures is 25%, and the cavity structure being filled is uniformly distributed.
The chemical component of fiber is soluble poly tetrafluoroethene, the quality of the far infrared h substance adulterated on nanofiber Ratio is 0.5%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance far-infrared ceramic 0.1g capable of releasing far infrared ray, (it is molten that partial size is that (250nm) is scattered in 30mL In agent n,N-Dimethylformamide, 8h is stirred, dispersion liquid is formed, by the substance far-infrared ceramic that 0.1g is capable of releasing far infrared ray (partial size 250nm) is scattered in 30mL solvent n,N-Dimethylformamide, and after 10min is stirred by ultrasonic, 20g soluble poly is added Tetrafluoroethene (Guangzhou pine and cypress chemical industry, 300,000 dalton of weight average molecular weight), stirring 8h form spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；2 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 10min；So circulation totally 2 times, then spinning solution is carried out by electrostatic using conventional electrostatic spinning apparatus Spinning forms plane layer 12, and electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtains releasable remote red The function filtering material of outside line.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 10 μm of particles 95%, resistance pressure drop 20Pa, far infrared emissivity are 0.83.
Embodiment 5
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Plane layer 12 made of 14 mixed and disorderly aggregations and set on plane layer 12 it is supreme aligned as nanofiber 14 pile up made of Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Selection receives substrate, and material is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, hole Rate is 60%, grammes per square metre 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber fenestra Gap rate is 90%, and average pore size is 3.5 μm, grammes per square metre 15g/m2, bulk density 0.025g/cm3, totally 3 level units, from Under to above setting gradually.
The fibre diameter of plane layer is 4 μm in each level unit of nano fibrous membrane, porosity 90%, and average pore size is 3.5 μm, bulk density 0.025g/cm3；The quantity of each level unit cavity structure is 2.5 × 106A/cm2, cavity knot The height of structure is 6 μm, and cross sectional shape is triangle, and area of section is 400 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is far-infrared ceramic, and the form of substance is particle Shape, the interior material mass capable of releasing far infrared ray filled of each cavity structure is 10 μ g.Filled with capable of releasing far infrared ray The ratio that the cavity structure of substance accounts for all cavity structures is 30%, and the cavity structure being filled is uniformly distributed.
The chemical component of fiber is Kynoar, and the mass ratio of the far infrared h substance adulterated on nanofiber is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance far-infrared ceramic 0.1g capable of releasing far infrared ray, (it is molten that partial size is that (400nm) is scattered in 30mL In agent N-Methyl pyrrolidone, 8h is stirred, dispersion liquid is formed, by the substance far-infrared ceramic (grain that 0.1g is capable of releasing far infrared ray Diameter is that (400nm) is scattered in 30mL solvent N-methyl pyrilidone, and after 10min is stirred by ultrasonic, 10g Kynoar is added (Su Wei 6160,300,000 dalton of weight average molecular weight), stirring 8h form spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；；3 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 20kV receives distance 20cm, rate of flooding 1mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 20min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 5min；So circulation 3 times, then spinning solution is carried out by electrostatic spinning using conventional electrostatic spinning apparatus Plane layer 12 is formed, electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtain capable of releasing far infrared ray Function filtering material.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 10 μm of particles 100%, resistance pressure drop 25Pa, far infrared emissivity are 0.84.
Embodiment 6
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Plane layer 12 made of 14 mixed and disorderly aggregations and set on plane layer 12 it is supreme aligned as nanofiber 14 pile up made of Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre For 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 88%, is put down Equal aperture is 4 μm, grammes per square metre 20g/m2, bulk density 0.03g/cm3, totally 3 level units, set gradually from top to bottom.
The fibre diameter of plane layer is 5 μm in each level unit of nano fibrous membrane, porosity 88%, and average pore size is 4 μm, bulk density 0.03g/cm3；The quantity of each level unit cavity structure is 2 × 106A/cm2, cavity structure Height is 7 μm, and cross sectional shape is rectangle, and area of section is 600 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is silicon carbide, and the form of substance is short fibre, diameter It is 0.5 μm, length 3mm, the interior material mass capable of releasing far infrared ray filled of each cavity structure is 50 μ g.Filled with can It is 35% that the cavity structure for discharging the substance of far infrared, which accounts for the ratio of all cavity structures, and the cavity structure being filled uniformly divides Cloth.
The chemical component of fiber is polyvinyl butyral, the mass ratio of the far infrared h substance adulterated on nanofiber Example is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance silicon carbide 0.1g capable of releasing far infrared ray (partial size is that (400nm) is scattered in 30mL solvent N, In dinethylformamide, 8h is stirred, forms dispersion liquid, (partial size is by substance silicon carbide 0.1g capable of releasing far infrared ray (400nm) is scattered in 30mL solvent n,N-Dimethylformamide, and after 10min is stirred by ultrasonic, 10g polyvinyl butyral is added (Aladdin P105915,40,000 dalton of weight average molecular weight), stirring 8h form spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；As shown in figure 4, the cross section of roller 1 is Circle, sectional area 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.2 rule of protrusion It is arranged in the surface of roller 1, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, section Product is 6.8mm2, thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is circle, Area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；；3 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；So circulation 3 times, then spinning solution is carried out by Static Spinning using conventional electrostatic spinning apparatus Silk forms plane layer 12, and electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtains releasable far infrared The function filtering material of line.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 5 μm of particles 80%, resistance pressure drop 30Pa, far infrared emissivity are 0.84.
Embodiment 7
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Plane layer 12 made of 14 mixed and disorderly aggregations and set on plane layer 12 it is supreme aligned as nanofiber 14 pile up made of Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre For 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 85%, is put down Equal aperture is 4.5 μm, grammes per square metre 25g/m2, bulk density 0.035g/cm3, totally 4 level units, successively set from top to bottom It sets.
The fibre diameter of plane layer is 6 μm in each level unit of nano fibrous membrane, porosity 85%, and average pore size is 4.5 μm, bulk density 0.035g/cm3；The quantity of each level unit cavity structure is 1.5 × 106A/cm2, cavity knot The height of structure is 8 μm, and cross sectional shape is square, and area of section is 800 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is tourmaline, and the form of substance is short fibre, diameter It is 1 μm, length 3mm, the interior material mass capable of releasing far infrared ray filled of each cavity structure is 100 μ g.Filled with can It is 40% that the cavity structure for discharging the substance of far infrared, which accounts for the ratio of all cavity structures, and the cavity structure being filled uniformly divides Cloth.
The chemical component of fiber is polystyrene, and the mass ratio of the far infrared h substance adulterated on nanofiber is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance tourmaline 0.1g capable of releasing far infrared ray (partial size is that (400nm) is scattered in 30mL solvent N, In dinethylformamide, 8h is stirred, forms dispersion liquid, (partial size is by substance tourmaline 0.1g capable of releasing far infrared ray (400nm) is scattered in 30mL solvent n,N-Dimethylformamide, and after 10min is stirred by ultrasonic, 10g polystyrene (Jiangsu is added Match Baolong GP525,250,000 dalton of weight average molecular weight), stirring 8h forms spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；；4 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；So circulation 4 times, then spinning solution is carried out by Static Spinning using conventional electrostatic spinning apparatus Silk forms plane layer 12, and electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtains releasable far infrared The function filtering material of line.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 5 μm of particles 85%, resistance pressure drop 35Pa, far infrared emissivity are 0.85.
Embodiment 8
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Plane layer 12 made of 14 mixed and disorderly aggregations and set on plane layer 12 it is supreme aligned as nanofiber 14 pile up made of Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre For 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 82%, is put down Equal aperture is 5 μm, grammes per square metre 30g/m2, bulk density 0.04g/cm3, totally 4 level units, set gradually from top to bottom.
The fibre diameter of plane layer is 7 μm in each level unit of nano fibrous membrane, porosity 82%, and average pore size is 5 μm, bulk density 0.04g/cm3；The quantity of each level unit cavity structure is 1 × 106A/cm2, cavity knot The height of structure is 10 μm, and cross sectional shape is circle, and area of section is 1000 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is medical stone, and the form of substance is short fibre, diameter It is 1 μm, length 3mm, the interior material mass capable of releasing far infrared ray filled of each cavity structure is 200 μ g.Filled with can It is 45% that the cavity structure for discharging the substance of far infrared, which accounts for the ratio of all cavity structures, and the cavity structure being filled uniformly divides Cloth.
The chemical component of fiber is polyester, and the mass ratio of the far infrared h substance adulterated on nanofiber is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance medical stone 0.1g capable of releasing far infrared ray (partial size is that (400nm) is scattered in 30mL solvent N, In dinethylformamide, 8h is stirred, forms dispersion liquid, (partial size is by substance medical stone 0.1g capable of releasing far infrared ray (400nm) is scattered in 30mL solvent n,N-Dimethylformamide, after 10min is stirred by ultrasonic, addition 10g polyester (Guangdong is wise and farsighted, 250,000 dalton of weight average molecular weight), stirring 8h forms spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；；4 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；So circulation 4 times, then spinning solution is carried out by Static Spinning using conventional electrostatic spinning apparatus Silk forms plane layer 12, and electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtains releasable far infrared The function filtering material of line.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 5 μm of particles 90%, resistance pressure drop 40Pa, far infrared emissivity are 0.86.
Embodiment 9
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Plane layer 12 made of 14 mixed and disorderly aggregations and set on plane layer 12 it is supreme aligned as nanofiber 14 pile up made of Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre For 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 80%, is put down Equal aperture is 5.5 μm, grammes per square metre 35g/m2, bulk density 0.045g/cm3, totally 5 level units, successively set from top to bottom It sets.
The fibre diameter of plane layer is 8 μm in each level unit of nano fibrous membrane, porosity 80%, and average pore size is 5.5 μm, bulk density 0.045g/cm3；The quantity of each level unit cavity structure is 9 × 105A/cm2, cavity structure Height be 12 μm, cross sectional shape is triangle, and area of section is 1400 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is far-infrared ceramic, and the form of substance is short fibre, Diameter is 1 μm, length 3mm, and the material mass capable of releasing far infrared ray filled in each cavity structure is 300 μ g.Filling Having the cavity structure of substance capable of releasing far infrared ray to account for the ratio of all cavity structures is 50%, and the cavity structure being filled is equal Even distribution.
The chemical component of fiber is polyvinyl acetate, and the mass ratio of the far infrared h substance adulterated on nanofiber is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance far-infrared ceramic 0.1g capable of releasing far infrared ray, (it is molten that partial size is that (400nm) is scattered in 30mL In agent n,N-Dimethylformamide, 8h is stirred, dispersion liquid is formed, by the substance far-infrared ceramic that 0.1g is capable of releasing far infrared ray (partial size is that (400nm) is scattered in 30mL solvent n,N-Dimethylformamide, and after 10min is stirred by ultrasonic, 10g poly-vinegar acid is added Ethylene (Aladdin P119359,310,000 dalton of weight average molecular weight), stirring 8h form spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；；5 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；So circulation 5 times, then spinning solution is carried out by Static Spinning using conventional electrostatic spinning apparatus Silk forms plane layer 12, and electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtains releasable far infrared The function filtering material of line.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 5 μm of particles 95%, resistance pressure drop 45Pa, far infrared emissivity are 0.87.
Embodiment 10
As shown in Figure 1, the function filtering material capable of releasing far infrared ray of the present embodiment, including substrate 11 and it is set to base Nano fibrous membrane on material 11, the nano fibrous membrane include level unit, and each level unit includes by nanofiber Plane layer 12 made of 14 mixed and disorderly aggregations and set on plane layer 12 it is supreme aligned as nanofiber 14 pile up made of Cavity structure 13, portion cavity structure 13 is interior to be filled with substance 15 capable of releasing far infrared ray, as shown in Fig. 2, nanofiber 14 It is also doped with substance 15 capable of releasing far infrared ray.The nano fibrous membrane further include one assembled in a jumble by nanofiber and At plane layer 12, the plane layer 12 be set to positioned at top side level unit on.
Substrate is Huayang F120 type non-woven fabrics, and square shape mesh, mesh size is 8mm2, porosity 60%, grammes per square metre For 120g/m2, material is polypropylene, exhibits initial filtration efficiency 0%, pressure drag 0Pa.Nanofiber membrane porosity is 78%, is put down Equal aperture is 6 μm, grammes per square metre 40g/m2, bulk density 0.05g/cm3, totally 5 level units, set gradually from top to bottom.
The fibre diameter of plane layer is 9 μm in each level unit of nano fibrous membrane, porosity 78%, and average pore size is 6 μm, bulk density 0.05g/cm3；The quantity of each level unit cavity structure is 8 × 105A/cm2, cavity structure Height is 14 μm, and cross sectional shape is rectangle, and area of section is 1600 μm2。
Material composition capable of releasing far infrared ray in nano fibrous membrane is far-infrared ceramic, and the form of substance is short fibre, Diameter is 1 μm, length 3mm, and the material mass capable of releasing far infrared ray filled in each cavity structure is 350 μ g.Filling Having the cavity structure of substance capable of releasing far infrared ray to account for the ratio of all cavity structures is 55%, and the cavity structure being filled is equal Even distribution.
The chemical component of fiber is nylon 6, and the mass ratio of the far infrared h substance adulterated on nanofiber is 1%.
The above-mentioned filtering material for having release far-infrared functional specific the preparation method comprises the following steps:
Step 1: by substance far-infrared ceramic 0.1g capable of releasing far infrared ray, (it is molten that partial size is that (400nm) is scattered in 30mL In agent n,N-Dimethylformamide, 8h is stirred, dispersion liquid is formed, by the substance far-infrared ceramic that 0.1g is capable of releasing far infrared ray (partial size is that (400nm) is scattered in 30mL solvent n,N-Dimethylformamide, and after 10min is stirred by ultrasonic, 10g nylon 6 is added (Aladdin P129923,200000 dalton of weight average molecular weight), stirring 8h form spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device as shown in Figure 3, the electrostatic spinning reception device Including roller 1, the surface of roller 1 is equipped with the protrusion 2 of multiple hollow shapes, and the one side of protrusion 2 is contacted with roller 1, with connecing for roller 1 Contacting surface can be connected to inside roller 1, the opposition face closure in the face, in addition to this two sides, other faces be equipped with hole, roller 1 it is interior Portion is hollow structure, and one end is connected with high-temperature steam generation apparatus, other end closing；The cross section of roller 1 is circle, sectional area For 720cm2, length L1 is 78cm, and material is copper；The wall thickness T1 of roller is 13.4cm.Protrusion 2 is regularly arranged in roller 1 Surface, raised shape is square, and material is identical as roller 1.The height H of protrusion 2 is 1.6mm, sectional area 6.8mm2, Thickness T2 is 0.31mm, and two neighboring raised 2 space D on roller 1 is 1mm.The shape in hole is square, and area is 0.01mm2。
Substrate is placed on roller 1, and the protrusion on the hole and roller 1 of substrate is mutually chimeric, will etch steam from high-temperature steam Generating device is sent into roller, and steam is discharged from the hole in protrusion；Steam can form etching to the substrate surface contacted, Increase base surface roughness, the velocity of discharge is dependent on roller sectional area, aperture area and is sent into speed.Etching steam is first Acid, concentration 40%, temperature are 110 DEG C, take the mode being continuously introduced into, and it is 2m/s that steam, which is sent into speed, be continuously introduced into when Between be 40min, steam from protrusion 2 hole in rate of release be 0.5m/s.
Step 3: by the perfusion syringe for storing spinning solution of conventional electrostatic spinning apparatus arrange on slide unit for The identical shape in above-mentioned 13 section of cavity structure, the quantity of the shape and the quantity of cavity structure are identical, in a part of shape Center dispose the perfusion syringe for storing dispersion liquid of conventional electrostatic atomizer for fill have it is releasable remote The substance 15 of infrared ray；5 level units, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being carried out by electrostatic spinning using conventional electrostatic spinning apparatus and forms plane layer 12, voltage 30kV receives distance 20cm, rate of flooding 2mL/h, the slide unit for being loaded with perfusion syringe is vertical with substrate transport direction, and slide unit movement velocity is 100cm/min, substrate parallel motion speed be 60cm/min, 25 DEG C of temperature, humidity 46%, time 30min, then use routine intravenous Spinning solution is carried out the cavity wall that electrostatic spinning forms cavity structure 13 by electric spinning device, and voltage 30kV receives distance 20cm, is filled Speed 2mL/h is infused, the slide unit for being loaded with perfusion syringe is not moved with substrate, and 25 DEG C of temperature, humidity 46%, time 30min, then Dispersion liquid progress electrostatic spray is filled into cavity structure by substance capable of releasing far infrared ray using conventional electrostatic atomizer, Voltage 30kV receives distance 20cm, rate of flooding 2mL/h, and the slide unit for being loaded with perfusion syringe is not moved with substrate, temperature 25 DEG C, humidity 46%, time 30min；So circulation 5 times, then spinning solution is carried out by Static Spinning using conventional electrostatic spinning apparatus Silk forms plane layer 12, and electrospinning conditions are identical as the plane layer 12 of level unit is formed, and finally obtains releasable far infrared The function filtering material of line.
It is tested using strainability of the TSI8130 instrument to material, material is to the filter efficiency of 5 μm of particles 100%, resistance pressure drop 50Pa, far infrared emissivity are 0.88.

Claims (11)

1. a kind of preparation method of function filtering material capable of releasing far infrared ray, the function mistake capable of releasing far infrared ray Filter material material includes substrate and the nano fibrous membrane on substrate, and the nano fibrous membrane includes at least one level list Member, each level unit include plane layer made of being assembled in a jumble as nanofiber and on plane layer by Nanowire Cavity structure made of dimension is piled up, part or all of cavity structure is interior to be filled with substance capable of releasing far infrared ray, nanofiber It is also doped with substance capable of releasing far infrared ray, which is characterized in that the preparation method includes:
Step 1: dispersing substance capable of releasing far infrared ray in solvent, dispersion liquid is formed, by object capable of releasing far infrared ray Matter is scattered in solvent, and polymer is added, and stirring forms spinning solution；
Step 2: substrate being placed in electrostatic spinning reception device, the electrostatic spinning reception device includes roller, roller Surface is equipped with the protrusion of multiple hollow shapes, raised one side and cylinder contact, can be connected in roller with the contact surface of roller Portion, the opposition face closure in the face, in addition to this two sides, other faces are equipped with hole, and the inside of roller is hollow structure, and one end is connected with High-temperature steam generation apparatus, other end closing；Substrate is placed on roller, and the protrusion on the hole and roller of substrate is mutually chimeric, will It etches steam and is sent into roller from high-temperature steam generation apparatus, steam is discharged from the hole in protrusion；
Step 3: at least one level unit, the forming method packet of each level unit of nano fibrous membrane are formed on substrate It includes: spinning solution being first subjected to electrostatic spinning and forms plane layer, then spinning solution is subjected to electrostatic spinning and forms cavity structure Cavity wall, then by the way that dispersion liquid progress electrostatic spray is filled substance capable of releasing far infrared ray into cavity structure；Final To function filtering material capable of releasing far infrared ray.
2. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that described Substrate be mesh, the shape in hole is triangle, rectangle or circle, and grammes per square metre is 10~300g/m2, material be polypropylene, Polyethylene, polypropylene, polyethylene, polyethylene terephthalate, polyamide fibre, cellulose, polyacrylonitrile, polyvinyl chloride or gold Belong to.
3. the preparation method of function filtering material capable of releasing far infrared ray as claimed in claim 2, which is characterized in that described Rectangle be square.
4. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that described Nano fibrous membrane porosity be 60~99.99%, average pore size be 1~10 μm, grammes per square metre be 0.01~70g/m2, accumulate close Degree is 0.006~0.084g/cm3, the number of level unit is 1~10 in nano fibrous membrane.
5. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that described Plane layer fibre diameter be 0.02~20 μm, porosity be 60~99.99%, average pore size be 1~10 μm, bulk density For 0.006~0.084g/cm3。
6. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that described Each level unit cavity structure quantity be 2.5 × 104~5 × 106A/cm2, the height of cavity is 5~50 μm, is cut Face shape is round, rectangle or triangle, and area of section is 20~4000 μm2。
7. the preparation method of function filtering material capable of releasing far infrared ray as claimed in claim 6, which is characterized in that described Rectangle be square.
8. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that described Cavity structure in substance capable of releasing far infrared ray be silicon carbide, tourmaline, medical stone, far-infrared ceramic and metal oxide At least one of, the form of substance is graininess or short fibre, the substance matter capable of releasing far infrared ray filled in each cavity Amount is 0.1~1000 μ g.
9. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that described The cavity structure filled with substance capable of releasing far infrared ray account for all cavity structures ratio be 10%~90%, be distributed shape Formula is to be uniformly distributed.
10. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that institute The chemical component for the nanofiber stated is FEP fluorinated ethylene propylene copolymer, perfluoroethylene-propylene, polypropylene, soluble poly tetrafluoroethene PFA, Kynoar, polyvinyl butyral, polystyrene, polyester, polyvinyl acetate, nylon 6, nylon66 fiber, polyvinyl alcohol, Polymethyl methacrylate, polyethylene glycol oxide, polyvinylpyrrolidone, polyacrylonitrile, polycaprolactone, gathers to benzene two polyaniline Formic acid second diester, polyethylene glycol, polyurethane, polysulfones, polyether sulfone, Kynoar-hexafluoropropene, gathers polytetrafluoroethylene PTFE Vinylidene-one of tetrafluoroethylene-perfluoro methyl vinyl ether and Kynoar-chlorotrifluoroethylene or more.
11. the preparation method of function filtering material capable of releasing far infrared ray as described in claim 1, which is characterized in that institute The mass ratio of the substance capable of releasing far infrared ray for the nanofiber doping stated is 0.01%~5%.
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