SURFACE-MODIFIED POROUS FILM AND MANUFACTURING METHOD THEREOF

To provide a highly-hydrophilic surface-modified porous film having a large permeation flow rate, and excellent in fractionation characteristic and stain resistance.SOLUTION: There is provided a surface-modified porous film comprising a porous film and a functional polymer layer formed on the surfac...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	INOUE HIROSHI, TOGO HIDEKAZU, TSUNEFUJI SUKIAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide a highly-hydrophilic surface-modified porous film having a large permeation flow rate, and excellent in fractionation characteristic and stain resistance.SOLUTION: There is provided a surface-modified porous film comprising a porous film and a functional polymer layer formed on the surface of the porous film. In the surface-modified porous film, the surface has a fine structure containing node and fibril, the opening ratio is 30-60%, the average pore diameter is 0.05-0.5 μm, and a variation coefficient of the average pore diameter is 0.2-0.6.SELECTED DRAWING: Figure 1 【課題】透過流量が大きくかつ分画特性に優れ、更に親水性が高く耐汚染性に優れた表面修飾多孔質膜を提供する。【解決手段】多孔質膜と該多孔質膜表面に形成された機能性ポリマー層とからなる表面修飾多孔質膜であって、表面がノードとフィブリルを含む微細構造を有し、開口率が３０〜６０％、平均細孔径が０．０５〜０．５μｍ、平均細孔径の変動係数が０．２〜０．６であることを特徴とする、表面修飾多孔質膜を提供する。【選択図】図１