The Mechanical Properties And Morphology Study Of The Silica-PE Composite Using Modified Silica

Elyas, Talib (2009) The Mechanical Properties And Morphology Study Of The Silica-PE Composite Using Modified Silica. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this project is to study the mechanical properties and morphology study of polyethylene (PE) composite reinforced with modified silica MOdification of silica is obtained by the stirring and ball milling process which is performed using stirrer and ball milling machine. PE is mixed with the modification of silica using extrusion machine and hot pressing machine to fabricate the mixture into composite with 25 ~lo, 32.5 wt%, 50 wt% and 75 wt% of modified silica. Plates thickness and width of 3mm and 2mm respectively were prepared for mechanical testing samples. Silica is fabricated with PE in purpose of comparing the mechanical properties between several types of silica size. In terms of tensile properties, Young's modulus shows an increase at modification of silica, whereas tensile strength deereased with the increase in modified silica weight friction. Flexural strength and flexural modulus increase with the increasing in modified silica weight fraction. Impact strength of composite with modification of silica exhibits higher value compared to the other weight fraction. Furthermore, increasing of modified silica percentage results in increase of water absorption. Scanning eleetron microscopy (SEM)

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