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一种大通量两性纳滤膜的制备方法
Authors
刘富
薛立新
马碧荣
鲁华锋
Publication date
8 May 2013
Publisher
Abstract
本发明涉及一种大通量两性纳滤膜的制备方法。传统纳滤膜的制备方法主要分为相转化法和复合法,但很难得到通量很大的膜。该方法是超滤膜用乙醇和去离子水洗涤,然后浸泡于烯烃类阳离子单体溶液中,100~600W紫外灯下辐照3~120分钟,得到阳离子纳滤膜;阳离子纳滤膜用去离子水洗涤,然后浸泡于两性烯烃类单体溶液中,100~600W紫外灯下辐照2~40min,得到两性纳滤膜;最后两性纳滤膜用去离子水洗涤。本发明方法制备的两性纳滤膜在0.5MPa下水通量为55~200L/m2h,对氯化钠、MgCl2、MgSO4截留率分别为40~85﹪、80~97﹪、60~93﹪。本发明方法制备工艺简单可靠,适用于工业化
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Last time updated on 22/01/2018