Pva多孔膜、その製造方法及びpva多孔膜を有する濾過フィルター

Pva porous membrane, method for manufacturing the same, and filtration filter having the pva porous membrane

Abstract

【課題】本発明は、有機溶媒や水の透過性能が高く、10nm以下の径のナノ粒子の除去率が高いPVA多孔膜、その製造方法及びPVA多孔膜を有する濾過フィルターを提供することを課題とする。 【解決手段】網目状のPVAが薄膜状に集積され、一面側から他面側に連通する複数の細孔Cが設けられたPVA多孔膜であって、膜厚が10nm以上500nm以下であり、各細孔Cの最小径dが1nm以上10nm以下であるPVA多孔膜21を用いることによって前記課題を解決できる。 【選択図】図2
PROBLEM TO BE SOLVED: To provide a PVA (polyvinyl alcohol) porous membrane having high performance in permeating an inorganic solvent and water and a high rate of removing nanoparticles with a diameter of 10 nm or less, a method for manufacturing the PVA porous membrane, and a filtration filter having the PVA porous membrane.SOLUTION: The PVA porous membrane 21 with reticulated PVA laminated in a thin membrane state and with a plurality of pores C provided communicating from one face side to the other face side, has a membrane thickness of 10 nm or more and 500 nm or less and the minimum diameter d of each pore C being 1 nm or more and 10 nm or less.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (18)

    Publication numberPublication dateAssigneeTitle
    JP-2008515668-AMay 15, 2008ザ リサーチ ファウンデーション オブ ステイト ユニバーシティー オブ ニューヨーク高流量かつ低付着の濾過媒体
    JP-2008545026-ADecember 11, 2008シンベンション アーゲー多孔性網状化複合材料の作製のためのプロセス
    JP-2009131725-AJune 18, 2009National Institute For Materials Science, 独立行政法人物質・材料研究機構Soft protein nano-membrane having self-standing property and its manufacturing method and application
    JP-2010094962-AApril 30, 2010Unitika Ltd, ユニチカ株式会社微細繊維集合体の積層体及び分離膜
    JP-H06502814-AMarch 31, 1994
    JP-H09194744-AJuly 29, 1997Kuraray Co Ltd, 株式会社クラレ多孔質ゲル状物
    JP-S5611931-AFebruary 05, 1981Kuraray Co LtdPorous membrane of polyvinyl alcohol
    JP-S56144705-ANovember 11, 1981Kuraray Co LtdDesorption of polyvinyl alcohol polymer adsorbed on silica
    JP-S56149442-ANovember 19, 1981Nippon Synthetic Chem Ind Co Ltd:TheMethod of controlling pore size of porous membrane
    JP-S5781806-AMay 22, 1982Aligena AgSemipermeable composite membrane containing denatured polyvinyl alcohol, its manufacture and its use
    US-2009117269-A1May 07, 2009Metal Matrix Composites CompanyElectrically conductive composite material
    US-2010140163-A1June 10, 2010National Institute For Materials ScienceFlexible free-standing ultrathin or thin protein membrane, its fabrication method and application
    US-2012055877-A1March 08, 2012National Institute For MaterialsOrganic polymers-separation membrane filter, and organic polymers-separation method
    US-4262067-AApril 14, 1981The United States Of America As Represented By The Administrator Of The National Aeronautics And Space AdministrationIn-situ cross linking of polyvinyl alcohol
    US-4753725-AJune 28, 1988Aligena AgSemipermeable composite membranes, their manufacture, and use
    US-5443727-AAugust 22, 1995Minnesota Mining And Manufacturing CompanyArticles having a polymeric shell and method for preparing same
    WO-2011016274-A1February 10, 2011独立行政法人物質・材料研究機構Filtre de séparation d'une substance organique de masse moléculaire élevée et procédé de séparation d'une substance organique de masse moléculaire élevée
    WO-2011016478-A1February 10, 2011独立行政法人物質・材料研究機構濾過フィルターの製造方法及び濾過フィルター

NO-Patent Citations (0)

    Title

Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-103551054-AFebruary 05, 2014中科瑞阳膜技术(北京)有限公司一种超滤膜及其制备方法