Preparation method of nanocellulose composite polysulfone hollow fiber membrane

The invention provides a preparation method of a nanocellulose composite polysulfone hollow fiber membrane. The preparation method comprises the steps that a membrane casting solution and a core solution are extruded through an annular spinning head of an immersion precipitated phase inversion spinn...

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Bibliographic Details
Main Authors JI GENLIANG, YE JIANRONG, SHEN LIQIANG, HU MENGXIN
Format Patent
LanguageChinese
English
Published 15.06.2016
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:The invention provides a preparation method of a nanocellulose composite polysulfone hollow fiber membrane. The preparation method comprises the steps that a membrane casting solution and a core solution are extruded through an annular spinning head of an immersion precipitated phase inversion spinning device at the same time to form a tubular liquid membrane, wherein the membrane casting solution comprises polysulfone, nanocellulose, polyethylene glycol and sulfonated polysulfone; the tubular liquid membrane passes through an air gap to enter a coagulating bath to be solidified, the tubular liquid membrane is placed in water to be soaked and cleaned, and the nanocellulose composite polysulfone hollow fiber membrane is obtained. The nanocellulose is used as a reinforcing agent and a hydrophilic modifying agent, and the mechanical strength and hydrophilism of the polysulfone membrane are improved; the polyethylene glycol is used as a dispersing agent for the nanocellulose and a hydrophilic modifying agent for
Bibliography:Application Number: CN2016175280