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    • 71. 发明专利
    • Reverse osmosis membrane for desalinating brine
    • 用于脱盐葡萄酒的反向渗透膜
    • JP2013031834A
    • 2013-02-14
    • JP2012137711
    • 2012-06-19
    • Toyobo Co Ltd東洋紡株式会社
    • AZUMA MASAOMORITA JUNSUKEKITAGAWA SUSUMU
    • B01D71/68B01D61/02B01D69/08B01D71/52C02F1/44C08G65/38
    • Y02A20/131
    • PROBLEM TO BE SOLVED: To provide a reverse osmosis membrane that exhibits excellent desalination performance and permeability required in brine desalination while using a material having chemical resistance (alkali resistance and chlorine resistance).SOLUTION: The reverse osmosis membrane for desalinating brine includes a sulfonated polyarylene ether sulfone polymer that contains components represented by formula [I]. In a proton nuclear magnetic resonance spectrum obtained by measuring water molecules in the membrane using the reverse osmosis membrane in a water-containing state, a relationship between a chemical shift A (ppm) of a spectrum peak top derived from bound water, and a chemical shift B (ppm) of a spectrum peak top derived from bulk water satisfies B-0.42≤A
    • 要解决的问题:提供一种使用具有耐化学性(耐碱性和耐氯性)的材料时,在盐水脱盐中所需的脱盐性能和渗透性优异的反渗透膜。 解盐水:用于脱盐盐水的反渗透膜包括含有式[I]表示的成分的磺化聚亚芳基醚砜聚合物。 在通过使用含水状态的反渗透膜测定膜中的水分子而获得的质子核磁共振谱中,来自结合水的光谱峰顶的化学位移A(ppm)与化学物质 源自大量水的光谱峰顶的位移B(ppm)满足B-0.42≤A