Title:
FORWARD OSMOSIS MEMBRANE AND PRODUCTION METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2016195977
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a forward osmosis membrane having high mechanical strength and dimension stability and high water permeability from a low concentration solution side to a high concentration solution side and capable of suppressing the diffusion of a solute from the high concentration solution side to the low concentration solution side.SOLUTION: In a forward osmosis membrane having an ion barrier layer (A) and a porous support layer (B): the ion barrier layer (A) is a laminate of an anionic polymer composition layer (A1) and a cationic polymer composition layer (A2); the anionic polymer composition includes a polymer having an anion group and a vinyl alcohol-based polymer not having an ion group; the cationic polymer composition includes a polymer having a cation group and a vinyl alcohol-based polymer not having an ion group; and the porous support layer (B) consists of the aggregate of polyvinyl alcohol fibers.SELECTED DRAWING: None
Inventors:
HATTORI YUSAKU
WAKUI TAKASHI
HIGA MITSURU
WAKUI TAKASHI
HIGA MITSURU
Application Number:
JP2015077315A
Publication Date:
November 24, 2016
Filing Date:
April 06, 2015
Export Citation:
Assignee:
KURARAY CO
UNIV YAMAGUCHI
UNIV YAMAGUCHI
International Classes:
B01D61/00; B01D69/00; B01D69/10; B01D69/12; B01D71/38; B32B27/12; B32B27/30; C02F1/44
Attorney, Agent or Firm:
Shigeki Nakatsugu
Shunichiro Ito
Shunichiro Ito
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