CN106120156A - Composite diaphragm material is worn in a kind of ultracapacitor resistance - Google Patents

Composite diaphragm material is worn in a kind of ultracapacitor resistance Download PDF

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Publication number
CN106120156A
CN106120156A CN201610473235.1A CN201610473235A CN106120156A CN 106120156 A CN106120156 A CN 106120156A CN 201610473235 A CN201610473235 A CN 201610473235A CN 106120156 A CN106120156 A CN 106120156A
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Prior art keywords
water
powder
polyacrylonitrile
speed
minutes
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Inventor
刘芳
林海
刘勇
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Anhui Jiangwei Precision Manufacturing Co Ltd
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Anhui Jiangwei Precision Manufacturing Co Ltd
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Priority to CN201610473235.1A priority Critical patent/CN106120156A/en
Publication of CN106120156A publication Critical patent/CN106120156A/en
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/0007Electro-spinning
    • D01D5/0015Electro-spinning characterised by the initial state of the material
    • D01D5/003Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/0007Electro-spinning
    • D01D5/0061Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/0007Electro-spinning
    • D01D5/0061Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0076Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/0007Electro-spinning
    • D01D5/0061Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0092Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282Addition polymers
    • D04H1/43Acrylonitrile series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/52Separators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13Energy storage using capacitors

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses a kind of ultracapacitor resistance and wear composite diaphragm material, it is prepared by the raw materials in: vinal 35 40, polypropylene fibre 33 35, polyacrylonitrile powder 10 13, acetone 30 32, N, N dimethylformamide 72 75,70 DEG C of water-soluble PVA fibers 8 10, N methyl pyrrolidone 34, flyash 8 10, Ludox 34, aminopropyl triethoxysilane 0.8 1, phenolic moulding powder 34, nano titanium oxide 45, sodium hexameta phosphate 0.9 1.The present invention adds in the preparation of product by the flyash after processing, phenolic moulding powder, nano titanium oxide etc., the intensity of product and anti-breakdown performance can be strengthened, the composite diaphragm material porosity that the present invention makes is high, even aperture distribution, there are good insulating properties, dielectric properties, the most reinforcing preferably, resistance to sparking can be good.

Description

Composite diaphragm material is worn in a kind of ultracapacitor resistance
Technical field
The present invention relates to capacitor diaphragm technical field, particularly relate to a kind of ultracapacitor resistance and wear composite diaphragm material Material.
Background technology
Ultracapacitor is the accumulator of a kind of great market competitiveness, owing to it can realize quick charge, big electric current Electric discharge, and there is the charge lifetimes of more than 100,000 times, in some need the application of high-multiplying power discharge in short-term, occupy critical role. Hybrid vehicle and electric automobile also result in the requirement of electrical source of power in worldwide that this is new to ultracapacitor The extensive attention of type energy storage device.In the composition of ultracapacitor, electrode, electrolyte and the diaphragm paper property to ultracapacitor Conclusive impact can be played.Electrode and the electrolyte of ultracapacitor is the focus studied at present, but people are for barrier film Research and attention rate the highest.
The diaphragm paper of ultracapacitor is between two porous carbon electrodes, and complete wetting is at electrolyte together with electrode In, during repeated charge, play the effect of isolation, stop electronics conduction, prevent between the two poles of the earth, contacting the inside caused short Road.This just requires that diaphragm material is the insulator of electronics, has good isolation performance, and its hole should be as far as possible less than electricity The minimum grain size of pole surfactant.The necessary aperture of the preferable diaphragm paper of isolation performance is little, so can make the circulation of electrolyte Property decline, battery charging and discharging hydraulic performance decline;And electrolyte to be impregnated with rate higher, ion is by the good diaphragm material often hole of property relatively The most more, easily cause and between the two poles of the earth, contact the internal short-circuit caused.The advantage of ultracapacitor maximum is charge/discharge rates Hurry up, can be with high power discharge, therefore, diaphragm material will thinner towards thickness, porosity is higher, aperture is less and is more evenly distributed Contour performance trend development.
The material being currently used for diaphragm of supercapacitor mainly has cellulosic separator paper and conventional batteries barrier film, high-performance every Film paper manufactures technical difficulty, and price is high;Conventional batteries membrane thicknesses is thicker, and porosity is low, poor to electrolyte affinity, and quiet Electro spinning nanometer fiber membrane manufacturing technology is simple, low cost, and barrier film porosity is up to 90%, good to electrolyte affinity, but lacks Point is that intensity is the highest.If cellulosic separator paper can be combined with electrospun fibers film, learning from other's strong points to offset one's weaknesses, can be become The composite diaphragm material that this is low, porosity is high, intensity is big.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of ultracapacitor resistance wear compound every Membrane material.
The present invention is achieved by the following technical solutions:
Composite diaphragm material is worn in a kind of ultracapacitor resistance, is prepared by the raw materials in: vinal 35- 40, polypropylene fibre 33-35, polyacrylonitrile powder 10-13, acetone 30-32, DMF 72-75,70 DEG C water-soluble PVA fiber 8-10, N-Methyl pyrrolidone 3-4, flyash 8-10, Ludox 3-4, aminopropyl triethoxysilane 0.8-1, electricity Wood powder 3-4, nano titanium oxide 4-5, sodium hexameta phosphate 0.9-1.
According to the diaphragm of supercapacitor material of a kind of environment-friendly degradable described in claims 1, by following concrete grammar It is prepared from:
(1) acetone is mixed homogeneously at normal temperatures with DMF, add polyacrylonitrile powder, with 100 revs/min Speed stirs 3 hours at normal temperatures, formed polyacrylonitrile spinning solution, receiving range be 20cm, voltage be 25kV, feed flow speed Rate is to carry out electrostatic spinning 2 hours under conditions of 1mL/h, spins out the polyacrylonitrile nanofiber film that thickness is 10 μm stand-by;
(2) polypropylene fibre is mixed with vinal, add appropriate water, put in beater, carry out by 2% concentration It is dispersed into fibrous suspension, adds 70 DEG C of water-soluble PVA fibers, be heated to 70 DEG C while stirring with the speed of 1000 revs/min, until It is stand-by that 70 DEG C of water-soluble PVA fibers are completely dissolved formation mixing suspension;
(3) flyash is dried, put in ball mill, add aminopropyl triethoxysilane, be heated to 60 DEG C, mixing and ball milling 90 Minute, taking out after cooling, mix with the Ludox being dissolved in 8 times amount water, ultrasonic disperse is centrifugal after 40 minutes to be stood, and filters, will To solid powder dried and phenolic moulding powder, nano titanium oxide are put in high speed mixer, be heated to 130 DEG C, with 1000 turns/ The speed divided stirs 20 minutes, discharging, pulverizes, and crosses 600 mesh sieves, obtains reinforcer;
(4) mixing suspension that will obtain in step (2) adds reinforcer, the polyacrylamide emulsion that step (3) obtains And remaining residual components, continuously add appropriate water, stir 30 minutes with the speed of 600 revs/min, forming online concentration is The slurry of 0.1wt%, uses wet therapy forming process by above-mentioned slurry feeding paper machine through wet end and press section drainage and formation, then Electricity consumption hot blast is dried 10 minutes, then uses hot forming machine to obtain non-weaving cloth base fabric with the temperature heat pressure adhesive of 135 DEG C to treat With;
(5) polyacrylonitrile nanofiber film step (1) obtained covers on the non-weaving cloth base fabric that step (4) obtains, Carry out hot binding by the hot-rollings of 135 DEG C, shear after cooling, be packaged to be the present invention.
The invention have the advantage that first polyacrylonitrile is carried out electrostatic spinning and make polyacrylonitrile nanofiber by the present invention Film, then utilizes vinal to mix with polypropylene fibre, uses wet nonwoven fabrics technique to make non-weaving cloth, incite somebody to action both Well it is bonded together by the way of hot pressing, intensity height, the performance of good permeability can be obtained, and preferably control The aperture of diaphragm material and distribution so that aperture is less to be more evenly distributed, porosity is high such that it is able to be preferably impregnated with electrolysis Liquid so that discharge current is evenly;70 DEG C of water-soluble PVA fibers of interpolation are as reinforcing agent simultaneously, and the composite diaphragm material made is also Having preferable tensile strength, chemical stability, fluidity and isolation performance are protected in imbibition.
The present invention adds in the preparation of product by the flyash after processing, phenolic moulding powder, nano titanium oxide etc., energy Enough strengthening the intensity of product and anti-breakdown performance, the composite diaphragm material porosity that the present invention makes is high, even aperture distribution, There are good insulating properties, dielectric properties, the most reinforcing preferably, resistance to sparking can be good.
Detailed description of the invention
Composite diaphragm material is worn in a kind of ultracapacitor resistance, is made up of the raw material of following weight portion (kilogram): poly-second Enol fiber 35, polypropylene fibre 33, polyacrylonitrile powder 10, acetone 30,72,70 DEG C of water-soluble PVA of DMF are fine Dimension 8, N methyl pyrrolidone 3, flyash 8, Ludox 3, aminopropyl triethoxysilane 0.8, phenolic moulding powder 3, nano titanium oxide 4, sodium hexameta phosphate 0.9.
According to the diaphragm of supercapacitor material of a kind of environment-friendly degradable described in claims 1, by following concrete grammar It is prepared from:
(1) acetone is mixed homogeneously at normal temperatures with DMF, add polyacrylonitrile powder, with 100 revs/min Speed stirs 3 hours at normal temperatures, formed polyacrylonitrile spinning solution, receiving range be 20cm, voltage be 25kV, feed flow speed Rate is to carry out electrostatic spinning 2 hours under conditions of 1mL/h, spins out the polyacrylonitrile nanofiber film that thickness is 10 μm stand-by;
(2) polypropylene fibre is mixed with vinal, add appropriate water, put in beater, carry out by 2% concentration It is dispersed into fibrous suspension, adds 70 DEG C of water-soluble PVA fibers, be heated to 70 DEG C while stirring with the speed of 1000 revs/min, until It is stand-by that 70 DEG C of water-soluble PVA fibers are completely dissolved formation mixing suspension;
(3) flyash is dried, put in ball mill, add aminopropyl triethoxysilane, be heated to 60 DEG C, mixing and ball milling 90 Minute, taking out after cooling, mix with the Ludox being dissolved in 8 times amount water, ultrasonic disperse is centrifugal after 40 minutes to be stood, and filters, will To solid powder dried and phenolic moulding powder, nano titanium oxide are put in high speed mixer, be heated to 130 DEG C, with 1000 turns/ The speed divided stirs 20 minutes, discharging, pulverizes, and crosses 600 mesh sieves, obtains reinforcer;
(4) mixing suspension that will obtain in step (2) adds reinforcer, the polyacrylamide emulsion that step (3) obtains And remaining residual components, continuously add appropriate water, stir 30 minutes with the speed of 600 revs/min, forming online concentration is The slurry of 0.1wt%, uses wet therapy forming process by above-mentioned slurry feeding paper machine through wet end and press section drainage and formation, then Electricity consumption hot blast is dried 10 minutes, then uses hot forming machine to obtain non-weaving cloth base fabric with the temperature heat pressure adhesive of 135 DEG C to treat With;
(5) polyacrylonitrile nanofiber film step (1) obtained covers on the non-weaving cloth base fabric that step (4) obtains, Carry out hot binding by the hot-rollings of 135 DEG C, shear after cooling, be packaged to be the present invention.
By testing the present embodiment diaphragm material, thickness is 52 μm, and average pore size is 0.178 μm, and porosity is 68%, pick up is 564%, and at 110 DEG C, percent thermal shrinkage is less than 1%, and at 150 DEG C, percent thermal shrinkage is less than 1%.

Claims (2)

1. composite diaphragm material is worn in a ultracapacitor resistance, it is characterised in that be prepared by the raw materials in: poly- Alcohol fibers 35-40, polypropylene fibre 33-35, polyacrylonitrile powder 10-13, acetone 30-32, DMF 72-75,70 DEG C of water-soluble PVA fiber 8-10, N-Methyl pyrrolidone 3-4, flyash 8-10, Ludox 3-4, aminopropyl three ethoxies Base silane 0.8-1, phenolic moulding powder 3-4, nano titanium oxide 4-5, sodium hexameta phosphate 0.9-1.
2. according to the diaphragm of supercapacitor material of a kind of environment-friendly degradable described in claims 1, it is characterised in that by following Concrete grammar is prepared from:
(1) acetone is mixed homogeneously at normal temperatures with DMF, add polyacrylonitrile powder, with 100 revs/min Speed stirs 3 hours at normal temperatures, formed polyacrylonitrile spinning solution, receiving range be 20cm, voltage be 25kV, feed flow speed Rate is to carry out electrostatic spinning 2 hours under conditions of 1mL/h, spins out the polyacrylonitrile nanofiber film that thickness is 10 μm stand-by;
(2) polypropylene fibre is mixed with vinal, add appropriate water, put in beater, carry out by 2% concentration It is dispersed into fibrous suspension, adds 70 DEG C of water-soluble PVA fibers, be heated to 70 DEG C while stirring with the speed of 1000 revs/min, until It is stand-by that 70 DEG C of water-soluble PVA fibers are completely dissolved formation mixing suspension;
(3) flyash is dried, put in ball mill, add aminopropyl triethoxysilane, be heated to 60 DEG C, mixing and ball milling 90 Minute, taking out after cooling, mix with the Ludox being dissolved in 8 times amount water, ultrasonic disperse is centrifugal after 40 minutes to be stood, and filters, will To solid powder dried and phenolic moulding powder, nano titanium oxide are put in high speed mixer, be heated to 130 DEG C, with 1000 turns/ The speed divided stirs 20 minutes, discharging, pulverizes, and crosses 600 mesh sieves, obtains reinforcer;
(4) mixing suspension that will obtain in step (2) adds reinforcer, the polyacrylamide emulsion that step (3) obtains And remaining residual components, continuously add appropriate water, stir 30 minutes with the speed of 600 revs/min, forming online concentration is The slurry of 0.1wt%, uses wet therapy forming process by above-mentioned slurry feeding paper machine through wet end and press section drainage and formation, then Electricity consumption hot blast is dried 10 minutes, then uses hot forming machine to obtain non-weaving cloth base fabric with the temperature heat pressure adhesive of 135 DEG C to treat With;
(5) polyacrylonitrile nanofiber film step (1) obtained covers on the non-weaving cloth base fabric that step (4) obtains, Carry out hot binding by the hot-rollings of 135 DEG C, shear after cooling, be packaged to be the present invention.
CN201610473235.1A 2016-06-24 2016-06-24 Composite diaphragm material is worn in a kind of ultracapacitor resistance Pending CN106120156A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111009425A (en) * 2019-12-11 2020-04-14 东佳电子(郴州)有限公司 Low-noise breakdown-resistant supercapacitor
CN112981717A (en) * 2021-02-05 2021-06-18 广州金立电子有限公司 Capacitor diaphragm and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
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CN103100264A (en) * 2013-02-06 2013-05-15 吕凯 Battery and capacitor diaphragm filter material formed by wet nonwoven fabrics and preparation method of filter material
CN104681764A (en) * 2015-02-10 2015-06-03 龙岩紫荆创新研究院 Composite lithium ion battery ceramic diaphragm and preparation method thereof
CN104766938A (en) * 2015-02-10 2015-07-08 龙岩紫荆创新研究院 Composite lithium ion battery diaphragm and preparation method thereof
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Application publication date: 20161116