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Preparation and Characterization of Eggshell Powder (ESP) and Study its Effect on Unsaturated Polyester Composites Material | ||
| Iraqi Journal of Applied Physics | ||
| Article 1, Volume 11, Issue 1, 2015, Pages 25-28 | ||
| Author | ||
| Rafah A. Nasif | ||
| Abstract | ||
| Microcomposites of unsaturated polyester (UP) with different loading of eggshell powder of grain size (36µ) ranging from 0 to 25wt% were prepared by hand – layup method. The mechanical properties of the composites such as: tensile strength, young's modulus and impact strength were studied as a function of filler loading. All of these mechanical properties values were decreased with increasing the filler concentration. To improve adhesion between the filler and matrix some coupling agents have been used like: NaOH, silane and stearic acid. The results showed that tensile strength and young modulus for stearic acid treated filler increase with increasing of filler loading followed by a decrease beyond 15wt%. Silane treated filler showed similar results o fimpact strength compared to untreated system. Impact strength of all coupling agent systems were increased with increasing the filler concentration, while decrease for untreated system. Finally, stearic acid treated filler have higher values of impact strength as compared to the other composites. | ||
| Keywords | ||
| Composite materials; Polyester; eggshell powder; Mechanical properties | ||
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