A First Course in Ion Permeable MembranesElectrochemical Consultancy, 1997 - 255 pagine |
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Pagina 24
... Stability Most applications require that the membranes are stable over an extended period , probably exceeding a ... stability as well as the chemical stability . As noted above , the demands on chemical stability are greatest when the ...
... Stability Most applications require that the membranes are stable over an extended period , probably exceeding a ... stability as well as the chemical stability . As noted above , the demands on chemical stability are greatest when the ...
Pagina 26
... stability and other properties such as high ionic conductivity and good selectivity in quite different ways . The styrene / divinyl- benzene copolymers achieve stability partly from their high molecular weight and high degree of ...
... stability and other properties such as high ionic conductivity and good selectivity in quite different ways . The styrene / divinyl- benzene copolymers achieve stability partly from their high molecular weight and high degree of ...
Pagina 52
... stability essential for commercial operation . Hence , it was necessary to employ other polymers to improve the membrane stability . Early attempts were based on grinding ion exchange beads to small particles , 1 - 10 μm , and then ...
... stability essential for commercial operation . Hence , it was necessary to employ other polymers to improve the membrane stability . Early attempts were based on grinding ion exchange beads to small particles , 1 - 10 μm , and then ...
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A First Course in Ion Permeable Membranes Thomas A. Davis,J. David Genders,Derek Pletcher Visualizzazione estratti - 1997 |
Parole e frasi comuni
amine anion anion and cation anode anolyte applications aqueous domains aqueous solution back migration bipolar membrane carboxylate polymer cathode catholyte cation exchange membrane cation permeable membrane cell voltage charge Chem chemical chemistry chlor-alkali chlor-alkali industry chloride co-ions commercial membranes concentration conductivity counter ions crosslinking current density current efficiency depleting determined diffusion coefficient dilute divinylbenzene electrical Electrochem electrodialysis stack electrolyte solution Electrosynthesis equation equivalent weight example Figure fixed ionic groups fluorocarbon flux gradient H.L. Yeager H₂ H₂O Hence hydration increase interface ion exchange ion exchange capacity ion permeable membranes Ionomer layer manufacture membrane pairs membrane polymer Membrane Sci membrane surface metal mole molecules monomers NaCl Nafion NaOH Neosepta oxidation perfluorinated membranes perfluorinated polymers perfluorinated sulfonate pretreatment properties proton resistance salt splitting sodium hydroxide sodium sulfate species stability stream structure styrene/divinylbenzene copolymers sulfonate sulfonate polymer sulfuric acid temperature transport number water content