Flow Behaviour And Viscoelasticity Of Polypropylene-Kaolin Composites

• मुख्य लेखक: Rahim, Azura Abdul
• स्वरूप: थीसिस
• भाषा: अंग्रेज़ी
• प्रकाशित: 2010
• विषय: TN1-997 Mining engineering. Metallurgy
• ऑनलाइन पहुंच: http://eprints.usm.my/42226/

Melt flow and viscoelastic behaviour of polypropylene kaolin (PP-kaolin) composites were investigated using a single screw extruder at various filler loading, temperature, extrusion cycle and die diameter. It was discovered that for the effect of filler loading, 5 wt% of kaolin loading has caused MFI value and apparent viscosity of the composites to be slightly reduced with respect to pure PP. Whereas, above 5 wt% of kaolin loading the apparent viscosity started to increase. Experimental results also showed that swelling ratio and MFI decreased gradually with increasing amount of filler loading but unexpectedly at 30wt% of kaolin loading, the swelling ratio started to increase proportionately with shear rate.