MODIFIED PERFORMANCE OF MECHANICAL, THERMAL, AND PHYSICAL PROPERTIES OF HIGH-DENSITY POLYETHYLENE – CORN FLOUR COMPOSITES

Year 2018, Volume: 1 Issue: 1, 38 - 46, 30.06.2018

Sameer Awad , Eman Khalaf

Abstract

A twin‐screw extruder synthesized the
high-density polyethylene (HDPE)/corn flour (CF) composites. The properties
of different contents of CF (10, 20, 25wt. %) has been evaluated and analyzed
in detail, including the mechanical, thermal, and physical properties. Results exhibited
the high interfacial adhesion between HDPE and CF. The tensile strength of HDPE
composites with higher loading 25%CF showed
tensile strength which was 37% higher than the neat HDPE. Similarly, modulus of elasticity and flexural strength parameters increased by
the ratios 0.5% and 14% respectively, however, impact
strength decreased by the ratio 48%. Results also showed that thermal conductivity is
improved and it reduced by 42% with a
higher amount of CF (25%Wt).  Water absorbance increased with increasing CF
in HDPE matrix.

Keywords

High-density polyethylene, corn flour, composites, tensile strength, thermal stability, impact strength

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