Sam , Sung Ting and Zulkepli, Nik Noriman and Ismail, Hanafi and Bakar, Sharifah Shahnaz Syed Abu
(2014)
Tensile Properties and Water Absorption of Spear Grass Fibre Filled
High Density Polyethylene/Thermoplastic Soya Spent Powder
Composites.
Journal of Engineering Science and Technology, 10.
pp. 49-57.
ISSN 1823-4690
Abstract
The study was focused on the tensile properties, morphology, water absorption
and thermogravimetric analysis (TGA) of degradable composites which are produced
from high density polyethylene (HDPE)/thermoplastic soya spent (TPSS) powder with the
addition of spear grass filler. HDPE/TPSS at the ratio of 90:10 was used as matrix in the
composites. In this ratio, the tensile strength of the HDPE was not much deteriorated by
TPSS. However, significant effect on degradation was observed based on previous
research. The addition of spear grass filler has further reduced the tensile strength of the
composites, yet the tensile modulus of the composites was improved. Nevertheless, the
tensile strength, elongation at break of the composite was improved with the presence of
polyethylene grafted maleic anhydride (PE-g-MA) as a compatibiliser. The water
absorption shows the increase of the water uptake with the addition of spear grass filler.
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