منابع مشابه
evaluation of surface roughness of polyacrylonitrile nanowebs
the objective of this research work is to evaluate the surface roughness of polyacrylonitrile (pan) nanowebs. for this purpose the nanowebs have been prepared in different concentrations of pan solution from 11 to 15% (by wt). surface roughness of nanowebs was evaluated by entropy algorithm (ent) as well as atomic force microscopy (afm) and then the results of two methods have been compared. to...
متن کاملPreparation and characterization of nano-porous Polyacrylonitrile (PAN) membranes with hydrophilic surface
Polyacrylonitrile (PAN) membranes with nano-porous surface and high hydrophilicity were fabricated by addition of polyoxyethylene (40) nonylphenyl ether (IGEPAL) as an additive in the casting solution. The membranes were prepared from PAN/IGEPAL/1-Methyl-2-pyrrolidone (NMP) via phase inversion induced by immersion precipitation technique. Pure water was used as coagulation medium. The effects o...
متن کاملPreparation and characterization of nano-porous Polyacrylonitrile (PAN) membranes with hydrophilic surface
Polyacrylonitrile (PAN) membranes with nano-porous surface and high hydrophilicity were fabricated by addition of polyoxyethylene (40) nonylphenyl ether (IGEPAL) as an additive in the casting solution. The membranes were prepared from PAN/IGEPAL/1-Methyl-2-pyrrolidone (NMP) via phase inversion induced by immersion precipitation technique. Pure water was used as coagulation medium. The effects o...
متن کاملDevelopment of Surface-Modified Polyacrylonitrile Fibers and Their Selective Sorption Behavior of Precious Metals
The purpose of this study was to design a powerful fibrous sorbent for recovering precious metals such as Pd(II) and Pt(IV), and moreover for identifying its selectivity toward Pd(II) or Pt(IV) from a binary metal solution. For the development of the sorbent, polyacrylonitrile (PAN) was selected as a model textile because its morphological property (i.e., thin fiber form) is suitable for fast a...
متن کاملSurface engineerings of polyacrylonitrile-based asymmetric membranes towards biomedical applications: An overview
Polyacrylonitrile (PAN) membranes have attracted much attention due to a variety of excellent characteristics, which include thermal stability nd tolerance to most solvents, atmosphere, bacteria and photo irradiation. Therefore, their exploitation also covers many fields, like pervaporation, ater treatment, enzyme immobilization, and hemodialysis. However, the relative poor hydrophilicity and b...
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ژورنال
عنوان ژورنال: Advances in Colloid and Interface Science
سال: 1994
ISSN: 0001-8686
DOI: 10.1016/0001-8686(94)80040-5