Preparation and Characterization of PVDF/Alkali-Treated PVDF Blend Membranes

Preparation, Characterization and Application Studies of PVDF- PS Ultrafiltration Membranes

Polyvinyledenefluoride–polystyrene (PVDF/PS) blend ultrafiltration membranes were prepared using phase inversion technique. Casting solutions were prepared with different compositions of polyvinylidene fluoride (PVDF) and polystyrene (PS) both in the presence and absence of the additive, polyvinylpyrolidone (PVP) using dimethylacetamide as solvent. The effects of compositions of PS and concentr...

Preparation and Characterization of PVDF/PMMA/Graphene Polymer Blend Nanocomposites by Using ATR-FTIR Technique

Assessment of Blend PVDF Membranes, and the Effect of Polymer Concentration and Blend Composition

In this work, PVDF homopolymer was blended with PVDF-co-HFP copolymer and studied in terms of morphology, porosity, pore size, hydrophobicity, permeability, and mechanical properties. Different solvents, namely N-Methyl-2 pyrrolidone (NMP), Tetrahydrofuran (THF), and Dimethylformamide (DMF) solvents, were used to fabricate blended PVDF flat sheet membranes without the introduction of any pore f...

Preparation and Characterization of Chitosan Binary Blend

Chitosan biopolymer represents an attractive alternative to other bio materials because of its significant physico– chemical behaviours. In order to improve chitosan’s performance, chemical modification has been carried out. Chemical modification that lead to the formation of chitosan derivatives, grafted chitosan and chitosan composites have gained much attention, extensively studied and widel...

Recent Progresses in Preparation and Characterization of RO Membranes

Reverse osmosis (RO) is a water purifcation technology that uses a semipermeable membrane to remove ions, molecules, and larger particles for the production of drinking water. The frst RO membrane for seawater desalination, wastewater treatment and other applications were made of cellulose acetate. But, the polyamide thin-flm composite membrane that can tolerate wide pH...