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公开(公告)号：US20240307829A1
公开(公告)日：2024-09-19
申请号：US18257789
申请日：2021-12-06
发明人： Songmiao Liang , Lijie Hu , Lianrui Zhao , Xingsheng Yang , Yonghong Liang , Jun Fang , Yan Jin , Zongce Wu
CPC分类号： B01D69/1214 , B01D71/56
摘要： The present disclosure relates to a composite reverse osmosis membrane and a preparation method therefor. The preparation method of the present disclosure can realize the preparation of a composite reverse osmosis membrane having a high flux, a high desalinization rate, a high deboration rate and high contamination resistance in a simple operation and high reaction efficiency manner.
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2.发明公开公开(公告)号：US20240091718A1
公开(公告)日：2024-03-21
申请号：US18257230
申请日：2021-12-21
发明人： Songmiao Liang , Huan Zeng , Xindi Chen , Lijie Hu , Xingsheng Yang , Jun Fang , Yuyang Guo
CPC分类号： B01D69/1251 , B01D61/025 , B01D67/0006 , B01D67/0095 , B01D69/14111 , B01D71/56 , B01D71/68 , C02F1/441 , B01D2323/38
摘要： The present disclosure belongs to the technical field of porous membrane material preparation, and specifically relates to a reverse osmosis composite membrane with an ultrathin desalting layer and a preparation method thereof; the intermediate layer is introduced after modifying the polysulfone base membrane, the modified polysulfone base membrane support layer may strengthen the bonding to the desalting layer through a covalent bond, and the thickness of the desalting layer is reduced to be ≤10 nm, so that the desalination rate of the membrane is not greatly affected while increasing the membrane flux. Compared with the membrane having a conventional thickness of the desalting layer, the water flux of the reverse osmosis composite membrane with an ultrathin desalting layer may be increased by about 0.5 times, while the desalination rate has a small change.
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