Processing

Please wait...

Settings

Settings

1. WO2020004212 - METHOD FOR PRODUCING POROUS HOLLOW FIBER MEMBRANE FOR HUMIDIFICATION

Publication Number WO/2020/004212
Publication Date 02.01.2020
International Application No. PCT/JP2019/024474
International Filing Date 20.06.2019
IPC
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
66
Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
68
Polysulfones; Polyethersulfones
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
08
Hollow fibre membranes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
44
Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42177
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8
Fuel cells; Manufacture thereof
04
Auxiliary arrangements or processes, e.g. for control of pressure, for circulation of fluids
[IPC code unknown for H01M 8/04119]
[IPC code unknown for H01M 8/04291]
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8
Fuel cells; Manufacture thereof
10
Fuel cells with solid electrolytes
B01D 71/68 (2006.01)
B01D 69/08 (2006.01)
B01D 71/44 (2006.01)
H01M 8/04 (2016.01)
H01M 8/04119 (2016.01)
H01M 8/04291 (2016.01)
CPC
B01D 69/08
B01D 71/44
B01D 71/68
H01M 8/04
H01M 8/04119
H01M 8/04291
Applicants
  • NOK株式会社 NOK CORPORATION [JP/JP]; 東京都港区芝大門一丁目12-15 12-15, Shibadaimon 1-chome, Minato-ku, Tokyo 1058585, JP
Inventors
  • 高木 貴行 TAKAGI Takayuki; JP
  • 江本 剛 EMOTO Tsuyoshi; JP
Agents
  • 吉田 俊夫 YOSHIDA Toshio; JP
  • 吉田 和子 YOSHIDA Kazuko; JP
Priority Data
2018-12069526.06.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR PRODUCING POROUS HOLLOW FIBER MEMBRANE FOR HUMIDIFICATION
(FR) PROCÉDÉ DE PRODUCTION D'UNE MEMBRANE POREUSE À FIBRES CREUSES POUR HUMIDIFICATION
(JA) 加湿用多孔質中空糸膜の製造法
Abstract
(EN)
In the present invention, a porous hollow fiber membrane for humidification is produced by subjecting a spinning dope, which comprises a water-soluble organic solvent solution of a polyphenylsulfone resin and a hydrophilic polyvinylpyrrolidone, to dry-wet spinning using water as a core liquid, then carrying out a crosslinking treatment for 1-20 hours at a temperature of 120-220ºC, and then immersing the resultant material in an acidic solution having a concentration of 5-500 ppm. The obtained porous hollow fiber membrane enables an improvement in hydrophilic properties and can increase the humidifying performance of a porous hollow fiber membrane body without compromising wettability, and is therefore effective as a humidifying membrane for a fuel cell.
(FR)
La présente invention concerne une membrane poreuse à fibres creuses pour humidification qui est produite par les étapes consistant à soumettre une solution à filer, qui comprend une solution de solvant organique soluble dans l'eau d'une résine de polyphénylsulfone et d'une polyvinylpyrrolidone hydrophile, à un séchage par voie humide à l'aide d'eau comme liquide de noyau, puis réaliser un traitement de réticulation pendant 1 à 20 heures à une température de 120-220 °C, puis immerger le matériau résultant dans une solution acide ayant une concentration de 5 à 500 ppm. La membrane poreuse à fibres creuses obtenue permet une amélioration des propriétés hydrophiles et peut augmenter la performance d'humidification d'un corps de membrane poreuse à fibres creuses sans compromettre la mouillabilité, et est donc efficace en tant que membrane d'humidification pour une pile à combustible.
(JA)
ポリフェニルスルホン樹脂および親水性ポリビニルピロリドンの水溶性有機溶媒溶液よりなる紡糸原液を、水を芯液として乾湿式紡糸した後、120~220℃で1~20時間架橋処理を行い、次いで濃度5~500ppmの酸性溶液に浸漬し、加湿用多孔質中空糸膜を製造する。得られた多孔質中空糸膜は、その濡れ性を損なうことなく、親水性を向上せしめることを可能とし、多孔質中空糸膜単体の加湿性能を高めることができるので、燃料電池用加湿膜として有効である。
Latest bibliographic data on file with the International Bureau