Polyacrylonitrile fibre film material being of netted porous structure, and preparation method and application thereof

• Main Authors: WANG YINGJIE, MA GUOFU, TANG WEI, PENG HUI, LEI ZIQIANG, WEI GANGGANG
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2017
• Subjects: BASIC ELECTRIC ELEMENTS; BRAIDING; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; COTTON-WOOL; ELECTRICITY; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES; INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTIOND, RELATING TOTEXTILES; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; NON-WOVEN FABRICS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TEXTILES; TRIMMINGS; WADDING

The invention provides a polyacrylonitrile film material and a preparation method thereof. High-molecular polymer polyacrylonitrile is taken as the raw material, and is fully dissolved in a mixed solvent of dimethyl formamide and acetone through stirring to obtain colloidal viscous liquid, then by means of a single-nozzle electrostatic spinning method, a super-hydrophilic diaphragm material being of a netted porous structure and with distributed relatively-large holes is prepared, the diaphragm material has excellent electrical conductivity and an excellent electrochemical property, and can be used as a super-capacitor diaphragm material, and has a prominent role in alleviating the self-discharge phenomenon of the super-capacitor, and therefore the capacitor has an excellent electrochemical property. Furthermore, the polyacrylonitrile fibre film material is cheap and easily-available in raw material, simple to operate, low in cost and good in repeatability, and is environmentally friendly and is prone to scal