A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Nanodiamond-modified polyamide evaporation membranes for separating methanol-methyl acetate mixtures
Abstract Poly(phenylene isophthalamide) (PA) membranes modified with detonation nanodiamond (ND) particles have been prepared by solid-phase dispersion of powders of the components. The transport properties of dense film membranes containing up to 5 wt % ND have been studied in the methanol and methyl acetate mass transfer processes using the sorption and pervaporation methods. It has been shown that the sorption-diffusion characteristics of the membranes are improved owing to the incorporation of ND particles in the PA matrix. The experimental data on the pervaporation of a methanol-methyl acetate mixture have been used to calculate the classical parameters flux and separation factor and determine permeability and selectivity, characteristic driving force-normalized properties of the test membrane-penetrant system. The highest flux and separation factor values have been obtained for a membrane containing 3 wt % ND. It has been found that the characteristic properties of the membrane-penetrant system facilitate selective mass transport of a methanol-methyl acetate mixture using PA/ND membranes.
Nanodiamond-modified polyamide evaporation membranes for separating methanol-methyl acetate mixtures
Abstract Poly(phenylene isophthalamide) (PA) membranes modified with detonation nanodiamond (ND) particles have been prepared by solid-phase dispersion of powders of the components. The transport properties of dense film membranes containing up to 5 wt % ND have been studied in the methanol and methyl acetate mass transfer processes using the sorption and pervaporation methods. It has been shown that the sorption-diffusion characteristics of the membranes are improved owing to the incorporation of ND particles in the PA matrix. The experimental data on the pervaporation of a methanol-methyl acetate mixture have been used to calculate the classical parameters flux and separation factor and determine permeability and selectivity, characteristic driving force-normalized properties of the test membrane-penetrant system. The highest flux and separation factor values have been obtained for a membrane containing 3 wt % ND. It has been found that the characteristic properties of the membrane-penetrant system facilitate selective mass transport of a methanol-methyl acetate mixture using PA/ND membranes.
Nanodiamond-modified polyamide evaporation membranes for separating methanol-methyl acetate mixtures
Avagimova, N. V. (author) / Toikka, A. M. (author) / Polotskaya, G. A. (author)
Petroleum Chemistry ; 55 ; 276-282
2015-06-01
7 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2000
| British Library Online Contents | 2008
Investigation of bactericidal properties of modified polyamide membranes
| Springer Verlag | 2013
Charge modified polyamide membrane
Elsevier | 1988