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Optimizing Injection Molding Processing Parameters for Enhanced Mechanical Performance of Oil Palm Empty Fruit Bunch High Density Polyethylene Composites

Megat-Yusoff, Puteri Sri Melor and Abdul Latif, M.R. and Ramli, Mohd Shayuti (2011) Optimizing Injection Molding Processing Parameters for Enhanced Mechanical Performance of Oil Palm Empty Fruit Bunch High Density Polyethylene Composites. Journal of Applied Sciences, 11 (9). pp. 1618-1623. ISSN 1812-5654

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Abstract

Abstract: This study reports on the influence of injection molding processing parameters on mechanical properties of oil palm Empty Fruit Bunch (EFB) filled High Density Poly Ethylene (HDPE). The biocomposite pellets were first prepared using an extruder with 20 wt% EFB content before being processed in an injection-molding machine for specimen fabrication. Two processing parameters were varied systematically and independently during the composite sample fabrication. The holding pressure was increased from 60 to 90 bars while the injection temperature was varied from 150 to 210°C. The highest tensile strength of the composites was achieved at 70 bar holding pressure and 150°C injection temperature. However, the highest fracture strength was achieved at 80 bars whilst maintaining the injection temperature at 150°C. Flexural strength was shown to be unaffected by the varying pressure. The optimal processing parameters for highest mechanical performance were found to be at holding pressure of 80 bars and injection temperature of 150°C. Scanning Electron Microscopy (SEM) observation of the fractured surfaces revealed agglomeration of fibers which contributed to poor adhesion of the fibers to the matrix material.

Item Type:Article
Subjects:Q Science > Q Science (General)
Departments / MOR / COE:Departments > Mechanical Engineering
ID Code:7406
Deposited By: A.P. Dr Puteri Sri Melor Megat Yusoff
Deposited On:10 Jan 2012 00:12
Last Modified:28 Mar 2014 13:22

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