The Study of Mechanical Properties of High Density Polyethylene (HDPE) Modified with Local Cheap Fillers.

A.S. Abdul, Wael; Salman Bachari, Thamir; A.Hamadi, Hameed; A. Abdullah, Nadhim

	The Study of Mechanical Properties of High Density Polyethylene (HDPE) Modified with Local Cheap Fillers.
journal of al-qadisiyah for pure science(quarterly)
Article 1, Volume 12, Issue 1, 2012, Pages 93-103 PDF (0 K)
Authors
Wael A.S. Abdul; Thamir salman Bachari; Hameed A.Hamadi; Nadhim A. Abdullah
Abstract
In this paper we report the study of mechanical properties of (high density polyethylene modified by sawdust). Several concentration of sawdust (5%, 10%, 15%, 20%, 25%) have been used. The study involves the calculating Young modules, Tensile strength and elongation. The obtained results showed that the adding of sawdust as a filler to HDPE decreasing the elongation by 80% relative to its original value were this decrease was rapid in filler range (5%-25%) and explained in the term of decreasing the polymeric chains distance. Thus the modified polymer has a high ability against the applied stress. Also we found that the elongation is positively proportional to sawdust concentration. The stiffness is also increased with the increase of the filler. Another obtained result showed some kind of fluctuating in young modulus values according to the decrease between (5%-10%) and the highest calculating value at 20% of sawdust concentration .Thus the 20% of filler concentration is the best concentration of sawdust through the combination the good stiffness and high elasticity. Finally the relation between the tension at yield for the modified polymer is inversely decreasing with filler concentration in a linear dependence according to the increment in stiffness.

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