发明授权
US5919348A Modification of the flow resistance of diaphragms 失效
修改隔膜的流动阻力

Modification of the flow resistance of diaphragms
摘要:
The flow resistance of a diaphragm based on a fiber material is modified by treating the diaphragm during or after preparation thereof with a dispersion comprising a fluorine-containing component and optionally with a solution comprising a precursor of ZrO.sub.2.
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