-
公开(公告)号:US20180126337A1
公开(公告)日:2018-05-10
申请号:US15803425
申请日:2017-11-03
申请人: Christine M. Beavers , David K. Britt , Norman C. Su , Daniel T. Sun , Wendy L. Queen , Jeffrey J. Urban
发明人: Christine M. Beavers , David K. Britt , Norman C. Su , Daniel T. Sun , Wendy L. Queen , Jeffrey J. Urban
CPC分类号: B01D67/0079 , B01D53/228 , B01D69/148 , B01D71/028 , B01D71/68 , B01D2256/10 , B01D2256/245 , B01D2257/504
摘要: A hybrid polymer/inorganic membrane with dual transport pathways overcomes traditional limitations. The inorganic phase consists of a metal-organic framework (MOF), which is an ideal inorganic dispersant to construct dual transport pathways as the crystalline porous structure of MOFs is more amenable to molecular diffusion than polymers. Previous hybrid membrane research has failed to achieve sufficiently high loadings to establish a percolative network necessary for dual transport, often due to mechanical failure of the membrane at high loading. Using polysulfone and UiO-66-NH2 MOF as a model system, we achieve high MOF loadings (50 wt %) and observe the evolution from single mode to dual transport regimes. The newly formed percolative pathway through the MOF acts as a molecular highway for gases. As the MOF loading increases to 30 wt %, CO2 permeability increases linearly from 5.6 barrers in polysulfone homopolymer to 18 barrers. Crucially, between 30 and 40 wt %, a percolative MOF network arises and the CO2 permeability dramatically rises from 18 to 46 barrers; an eight-fold increase over pure polysulfone, while maintaining selectivity over methane and nitrogen near the pure polymer at 24 and 26, respectively.
-
公开(公告)号:US20130189616A1
公开(公告)日:2013-07-25
申请号:US13358157
申请日:2012-01-25
申请人: Cuong Vong , Marko Saban , Vladislav Skorokhod , Lanhui Zhang , Lin Ma , Norman C. Su , Zhen Lai
发明人: Cuong Vong , Marko Saban , Vladislav Skorokhod , Lanhui Zhang , Lin Ma , Norman C. Su , Zhen Lai
CPC分类号: G03G5/0525 , G03G5/047
摘要: The present teachings describe a process for mixing comprising obtaining a dispersion of solid particles and an organic solvent wherein the dispersion comprises a particulate solid content of from about 0.5 weight percent to about 10 weight percent. The dispersion is mixed at a resonant frequency of the mixing system.
摘要翻译: 本教导描述了一种混合方法,包括获得固体颗粒和有机溶剂的分散体,其中分散体包含约0.5重量%至约10重量%的颗粒状固体含量。 分散体以混合系统的共振频率混合。
-