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Patent Searching and Data


Title:
β-FEOOH/POLYACRYLONITRILE COMPOSITE NANOFIBER MEMBRANE, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/221286
Kind Code:
A1
Abstract:
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.

Inventors:
HE YI (CN)
ZHANG LIYUN (CN)
FAN YI (CN)
MA LAN (CN)
SHI HENG (CN)
LI SHUANGSHUANG (CN)
ZHONG FEI (CN)
LI ZHENYU (CN)
Application Number:
CN2020/087725
Publication Date:
November 05, 2020
Filing Date:
April 29, 2020
Export Citation:
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Assignee:
UNIV SOUTHWEST PETROLEUM (CN)
International Classes:
D04H1/728; D04H1/43
Foreign References:
CN110205748A2019-09-06
CN105734725A2016-07-06
CN106039998A2016-10-26
CN102747439A2012-10-24
KR101609802B12016-04-06
Other References:
LEE, JONG HWA ET AL.: "Partially oxidized polyacrylonitrile nanofibrous membrane as a thermally stable separator for lithium ion batteries", POLYMER, vol. 68, 25 April 2015 (2015-04-25), pages 335 - 343, XP029177300, ISSN: 0032-3861
Attorney, Agent or Firm:
CHENGDU RUIDAO PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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