iosr-jpte   Volume-1 ~ Issue-1 ~ Jan. – Feb. 2014

Abstract: HIPS (High Impact Polystyrene) was blended with sugarcane waste in three formulations: 10, 18 & 25 wt% using a twin screw extruder. Test specimens were prepared using an injection molding machine. Mechanical, thermal and electrical properties were determined. Flexural strength, hardness, VSP (Vicat softening point) were improved. The tensile strength, impact strength, volume resistivity were decreased. Also melt flow index was decreased. HIPS is photo-degradable and sugarcane waste is bio-degradable. Hence sugarcane waste filled HIPS will be photo/biodegradable. The sugarcane waste filled HIPS may be useful for disposable applications like cups, lids, trays, tubs, pens with lower cost.

Key Words: HIPS, Sugar cane waste, Twin screw compounding, Mechanical, & Thermal properties.

Abstract: Vinyl Acetate was copolymerized with Acrylamide in Four different formulations (95:05%, 90:10%, 85:15% and 80:20 %) (wt%) using redox- catalysts by emulsion polymerization at 45 Deg C in water. The emulsions were casted on glass plates to form films. The films were tested for Mechanical properties like tensile strength, elongation at break and tear strength. Water vapour Permeability was determined. Optical property Haze was determined. The films were characterized by FT –IR spectroscopy and by DSC(Differential Scanning Calorimetry) for Tg, Tm and Td. The emulsions were precipitated using non solvent Methanol. The copolymers films were used for testing of MFI to know the flow characteristics.

Key words: Vinyl acetate, Acrylamide, Emulsion copolymerization, Film casting, FT-IR, DSC, Mechanical, Optical, Physical and Thermal properties