SEMI-PERMEABLE MEMBRANE SUPPORT AND METHOD FOR PRODUCING SEMI-PERMEABLE MEMBRANE SUPPORT

A semipermeable membrane support having a thickness difference between measurement thickness at 0.80 N/cm2 and measurement thickness at 1.27 N/cm2 of 1.0 to 5.0 % is excellent in adhesion to a semipermeable membrane and also adhesion between a raw water spacer and the semipermeable membrane and ther...

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Bibliographic Details
Main Authors SHIMIZU, Yusuke, MASUDA, Takao, Ochiai, Takahito
Format Patent
LanguageEnglish
French
German
Published 19.06.2024
Subjects
BRAIDING
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NON-WOVEN FABRICS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TEXTILES
TRANSPORTING
TRIMMINGS
WADDING
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Summary:A semipermeable membrane support having a thickness difference between measurement thickness at 0.80 N/cm2 and measurement thickness at 1.27 N/cm2 of 1.0 to 5.0 % is excellent in adhesion to a semipermeable membrane and also adhesion between a raw water spacer and the semipermeable membrane and thereby can be expected to maintain high water permeability after modulation. A method of producing a semipermeable membrane support comprises the step of carrying out hot-press processing by using an elastic roll, which has(have) a hardness between a type A durometer hardness of 60 or more and a type D durometer hardness of 95 or less.
Bibliography:Application Number: EP20200737958