Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : PVF


Silica/ Charcoal Addition to the Composite Polyvinyl Fluoride Membranes forWater /Organic Vapor Separation

Nagham H.Abood; Raghad O. Abas; Falak O.Abas

Engineering and Technology Journal, 2010, Volume 28, Issue 22, Pages 6605-6614

In the present work, Supported polyvinyl fluoride (PVF)/S/Ch membrane
were prepared by wet/dry inversion method where PVF powder was dissolved in a
required suitable solvent at dissolving percent 30% vol PVF/DMF at 50 °C for 15
min and 500 cycle /min stirring velocity then different mixing weight ratio of
organic and inorganic ceramic material (nano charcoal and SiO2 ) are added
(0.5,0.75, 1.0,1.25, and1.5)w/w to this solution with continuous stirring until reach
homogeneity then a suitable membrane were molded in thickness (1 mm) and
thinner then curing this membranes at 170°C for 24 hrs afterward chemical and
physical properties are measured.
The results of (apparent density, porosity, and chemical absorption under
moisture and acidic solution) proved that good chemical and physical properties
were shown for samples supported by organic fillers (charcoal) than inorganic one
of silica, and best samples have high chemical absorption and high permeability of
membranes is PVF m/Ch A5 and PVF m/SiO2 A3 for both organic and inorganic
one.