Production of Date Seed Reinforced Polyester Composite and Characterization of Its Thermophysical Properties
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Keywords:
Date Seed, Polyester Composite, Bulk Density, Shore D Hardness, Thermal ConductivityAbstract
In this research, ground date seeds are reinforced into orthophthalic-based unsaturated
polyester (UP). After the physical mixing takes place, methyl ethyl ketone peroxide (MEKP) and
cobalt octoate (Co Oc) are added to the mixture for the chemical reaction. After the resulting polyester
composite is poured into standard molds, it is waited for 24 hours to cure. Then, physical tests and
chemical analyses of the composite are performed. Date seed as a filler reduces the bulk density of the
polyester composite. The addition of a high amount of filler (8 wt.%) negatively affects both the pore
distribution and surface morphology of the composite. It is understood that the thermal conductivity
coefficient and Shore D hardness of the composite decrease by waste biomass filler. In experimental
optimization studies, approximately 4 wt.% date seed reinforcement can be recommended for
composite production. According to the thermal decomposition activation energy results, date seed
reinforcement slightly reduces the thermal stability of polyester composites. Thus, the production of
environmentally friendly, low carbon footprint and economical polyester composites can be achieved.
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