نتایج جستجو برای: organic polymer membranes

تعداد نتایج: 365160  

Salinity gradient energy (SGE) refers to the energy created from the difference in salt concentration between two streams. There are three types of SGE namely, pressure retarded osmosis (PRO), reverse electrodialysis (RED), and capacitive mixing (CapMix). All these technologies require membrane for the system to be operational. In this short review, the membranes modifications for each principl...

Journal: :Journal of Membrane Science 2022

In this work, we synthesized an ionic liquid (IL)/metal organic framework (MOF) composite, 1-ethyl-3-methylimidazolium acetate/copper-1,3,5-benzenetricarboxylate ([EMIM][OAc]/CuBTC) and used it as a filler in polymer, Pebax, to fabricate novel IL/MOF/polymer mixed matrix membranes (MMMs). CuBTC/Pebax [EMIM][OAc]/CuBTC/Pebax MMMs having different loadings of 10, 15, 20 wt.% were prepared by solu...

Journal: :Journal of the Society of Materials Science, Japan 1987

Journal: :Energies 2022

A membrane-based enthalpy exchanger is a device used for heat and humidity recovery in ventilated buildings. The energy-saving potential of such dependent on the parameters responsible moisture recovery. trend toward composite membranes, which are custom produced, their can be adjusted given application; therefore, diffusion sorption characteristics membranes unknown. In order to obtain values ...

2015
Agnes Schulze Andrea Prager Scott M. Husson

Polymer membrane surfaces have been equipped with the digestive enzyme trypsin. Enzyme immobilization was performed by electron beam irradiation in aqueous media within a one-step method. Using this method, trypsin was covalently and side-unspecific attached to the membrane surface. Thus, the use of preceding polymer functionalization and the use of toxic solvents or reagents can be avoided. Th...

Journal: :Iraqi journal of science 2021

In this work proton exchange membranes were prepared by a modified microwave casting solution technique, using the polymers blend (polyethersulfone (PES), polystyrene (PS), polyvinylidenefluride (PVDF)). Modified method was used to overcome poor compatibility between hydrophilic, (PES, PS) and hydrophobic PVDF, cooling substrate during film process (4.5-5.5oC). Membranes chemically three reacti...

2012
Eva Snejdrova Milan Dittrich

The modern pharmaceutical technology is not conceivable without plasticized polymers. The pharmaceutical applications of polymers range from packaging materials or auxiliary substances in conventional dosage forms to membranes or matrices modifying and controlling the drug release characteristics in therapeutic systems. Recently, a great variety of plasticized polymeric systems have been studie...

Journal: :MATEC Web of Conferences 2020

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