Оригинал (Original)
Автори: Славова, В. О., Митева М., Петров Ст.
Заглавие: Modification by vacuum metallization of composite PAN membranes - conditions, mechanism and structure
Ключови думи: ultrafiltration, vacuum metallization, polymer membrane

Абстракт: Polyacrylonitrile ultrafiltration membranes obtained by phase inversion from 16 mass% solution of polyacrylonitrile (PAN) and dimethylsulfoxide (DMSO) were vacuum metalized for different exposition periods. It was found from the studies carried out on their selectivity (φ,%) and permeability (J, l/m2.h) towards water and calibrant, scanning electron microscopy (SEM) and atomic-force microscopy (AFM) that the metallization can successfully replace the thermal treatment used to stabilize the membrane structure during operation. Depending on the metallization duration, metal layers of different densities and thicknesses were deposited which can be further used for modification of the selective and transport characteristics of the membrane. The optimal metallization time was determined to be 15 sec. with effective values of permeability – 33 l/m2.h and selectivity towards albumin – 80%.

Библиография

    Издание

    International Journal of Reasearch in Advent Technology, том 5, брой 11, стр. стр. 24-28, 2016, Индия, International Journal of Reasearch in Advent Technology, ISSN 2321-9637
    		Autors: Raykova, V. O., Miteva M., Petrov S.
    Title: Modification by vacuum metallization of composite PAN membranes - conditions, mechanism and structure
    Keywords: ultrafiltration, vacuum metallization, polymer membrane

    Abstract: Polyacrylonitrile ultrafiltration membranes obtained by phase inversion from 16 mass% solution of polyacrylonitrile (PAN) and dimethylsulfoxide (DMSO) were vacuum metalized for different exposition periods. It was found from the studies carried out on their selectivity (φ,%) and permeability (J, l/m2.h) towards water and calibrant, scanning electron microscopy (SEM) and atomic-force microscopy (AFM) that the metallization can successfully replace the thermal treatment used to stabilize the membrane structure during operation. Depending on the metallization duration, metal layers of different densities and thicknesses were deposited which can be further used for modification of the selective and transport characteristics of the membrane. The optimal metallization time was determined to be 15 sec. with effective values of permeability – 33 l/m2.h and selectivity towards albumin – 80%.

    References

      Issue

      International Journal of Reasearch in Advent Technology, vol. 11, issue 11, pp. 24-28, 2016, India, International Journal of Reasearch in Advent Technology, ISSN 2321-9637

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