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1. WO2020221286 - β-FEOOH/POLYACRYLONITRILE COMPOSITE NANOFIBER MEMBRANE, PREPARATION METHOD THEREFOR AND USE THEREOF

Publication Number WO/2020/221286
Publication Date 05.11.2020
International Application No. PCT/CN2020/087725
International Filing Date 29.04.2020
IPC
D04H 1/728 2012.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING 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
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
70characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
72the fibres being randomly arranged
728by electro-spinning
D04H 1/43 2012.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING 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
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
42characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
4282Addition polymers
43Acrylonitrile series
CPC
D04H 1/43
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
42characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
4282Addition polymers
43Acrylonitrile series
D04H 1/728
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
70characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
72the fibres being randomly arranged
728by electro-spinning
D10B 2505/04
DTEXTILES; PAPER
10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
2505Industrial
04Filters
Applicants
  • 西南石油大学 SOUTHWEST PETROLEUM UNIVERSITY [CN]/[CN]
Inventors
  • 何毅 HE, Yi
  • 张李云 ZHANG, Liyun
  • 范毅 FAN, Yi
  • 马兰 MA, Lan
  • 石恒 SHI, Heng
  • 李双双 LI, Shuangshuang
  • 钟菲 ZHONG, Fei
  • 李振宇 LI, Zhenyu
Agents
  • 成都睿道专利代理事务所(普通合伙) CHENGDU RUIDAO PATENT AGENCY (GENERAL PARTNERSHIP)
Priority Data
201910362641.430.04.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) β-FEOOH/POLYACRYLONITRILE COMPOSITE NANOFIBER MEMBRANE, PREPARATION METHOD THEREFOR AND USE THEREOF
(FR) MEMBRANE DE NANOFIBRES COMPOSITES DE β-FEOOH/POLYACRYLONITRILE, PROCÉDÉ DE PRÉPARATION S'Y RAPPORTANT ET SON UTILISATION
(ZH) 一种β-FeOOH/聚丙烯腈的复合纳米纤维膜及其制备方法与应用
Abstract
(EN)
Disclosed are a β-FeOOH/polyacrylonitrile composite nanofiber membrane, a preparation method therefor and the use thereof, belonging to the technical field of materials. The method for preparing the β-FeOOH/polyacrylonitrile composite nanofiber membrane comprises the following steps: preparation of a polyacrylonitrile nanofiber membrane: preparing a polyacrylonitrile nanofiber membrane by means of electrostatic spinning; stabilization treatment: subjecting the polyacrylonitrile nanofiber membrane to a gradient heating treatment; and biomineralization treatment: formulating a mixed solution from a ferric chloride solution and hydrochloric acid at a volume ratio of 2 : 1, placing the stabilized polyacrylonitrile nanofiber membrane into the mixed solution and stirring same for 1-3 min, then reacting same at a condition of 55-65ºC for 10-14 h, and then cleaning and drying same to obtain the β-FeOOH/polyacrylonitrile composite nanofiber membrane. The fiber membrane has better stability and mechanical properties, and also has superhydrophilic-underwater superhydrophobic properties, with the adsorption efficiency thereof being high, and the membrane being recyclable.
(FR)
L'invention concerne une membrane de nanofibres composites de β-FeOOH/polyacrylonitrile, un procédé de préparation s'y rapportant et son utilisation, appartenant au domaine technique des matériaux. Le procédé pour la préparation de la membrane de nanofibres composites de β-FeOOH/polyacrylonitrile comprend les étapes suivantes : la préparation d'une membrane de nanofibres de polyacrylonitrile consistant à préparer une membrane de nanofibres de polyacrylonitrile au moyen d'un filage électrostatique; un traitement de stabilisation consistant à soumettre la membrane de nanofibres de polyacrylonitrile à un traitement thermique à gradient; et un traitement de biominéralisation consistant à formuler une solution mélangée à partir d'une solution de chlorure ferrique et d'acide chlorhydrique en un rapport volumique de 2:1, placer la membrane de nanofibres de polyacrylonitrile stabilisée dans la solution mélangée et agiter celle-ci pendant 1 à 3 min, puis faire réagir celle-ci dans des conditions de 55 à 65 °C pendant 10 à 14 h, puis nettoyer et sécher celle-ci pour obtenir la membrane de nanofibres composites de β-FeOOH/polyacrylonitrile. La membrane de fibres a de meilleures stabilité et propriétés mécaniques et a également des propriétés superhydrophiles-superhydrophobes sous l'eau, l'efficacité d'adsorption de celle-ci étant élevée et la membrane étant recyclable.
(ZH)
一种β-FeOOH/聚丙烯腈的复合纳米纤维膜及其制备方法与应用,属于材料技术领域。一种β-FeOOH/聚丙烯腈的复合纳米纤维膜的制备方法,包括以下步骤:聚丙烯腈纳米纤维膜的制备:采用静电纺丝制备聚丙烯腈纳米纤维膜;稳定化处理:将聚丙烯腈纳米纤维膜进行梯度升温处理;生物矿化处理:将三氯化铁溶液与盐酸按体积比2:1 的比例配置成混合溶液,将稳定化的聚丙烯腈纳米纤维膜置于混合溶液中搅拌1-3min,然后在55-65℃的条件下反应10-14h,然后清洗、烘干制得β-FeOOH/聚丙烯腈的复合纳米纤维膜。所述纤维膜具有较好的稳定性能、机械性能,同时具有超亲水-水下超疏油性质,其吸附效率高、可循环使用。
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