Mitsubishi Chemical Corporation

Ami Shinoda

Shingo Hikita

Hiroki Fukuta

Masashi Teramachi

Seiichiro Mori

Naotaka Suenaga

Yuuki Fujii

Megumi Kubo

Provided is a porous membrane that can be manufactured in uncomplicated steps, has high hydrophilicity and water permeability, and exhibits excellent anti-fouling properties when used in a membrane bioreactor method (MBR method). The porous membrane of the present invention is a porous membrane containing polymer (A) and polymer (B), wherein the polymer (A) is a membrane-forming polymer, the polymer (B) is a polymer having a unit (b1) represented by formula (1) and a unit (b2) based on hydroxyl group-containing (meth)acrylate, and the concentration (mass %) of the unit (b1) is equal to or higher than the concentration (mass %) of the unit (b2) in the porous membrane. 

Porous membrane, membrane module, water treatment device, and method for manufacturing porous membrane

A porous membrane comprising a membrane-forming polymer (A) and a polymer (B) containing a methyl methacrylate unit and a hydroxyl group-containing (meth)acrylate (b1) unit. A flux of pure water to permeate the porous membrane is preferably 10 (m/m/MPa/h) or more and less than 200 (m/m/MPa/h). The contact angle of the bulk of the membrane-forming polymer (A) is preferably 60&#xb0; or more. The membrane-forming polymer (A) is preferably a fluorine-containing polymer. The polymer (B) is preferably a random copolymer.

Porous membrane

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Tokyo, Japan

Ami Shinoda