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Keywords

Biocomposites, Mechanical properties, olive leaf powder, thermal conductivity, Unsaturated polyester

Document Type

Research Paper

Abstract

The use of olive leaf powder (OLP) as a filler material in unsaturated polyester composites brings a new avenue for the development of mechanical and thermal properties. The present work focuses on the impact of the relative proportions of OLP ranging from (0, 5, 10, 15, 20, and 25%) on the structural, electrical, and thermal properties of the composites.The specimens were prepared through the hand lay molding process, and the hardness strength, impact strength as well as compressive strength examination were conducted.These findings suggest that the characteristics of these composites improve as the content of OLP increases.The maximum impact strength found is 2.52 KJ/m², and the maximum hardness is 7.24 N/mm², while the compressive strength is around 48.7 MPa. Thermal conductivity decreased on the volumetric fraction of 25%, which is within the range of 0.101 W/m·℃. Based on the analysis of the FTIR results, it can be claimed that the change in intensities and positions of the peaks may be associated with the interaction between the OLP and the polyester matrix. The SEM data suggest that the OLP is dispersed throughout the matrix, and strong interfacial adhesion exists between them. In summary, this work highlights the prospects of using OLP-filled unsaturated polyester composites for several purposes due to the improved mechanical and thermal characteristics.

References

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Highlights

A new type of polymer matrix composite, pls and plo, was used. Adding particles significantly enhanced impact resistance for all samples. Thermal conductivity decreased for all samples. FTIR spectra showed chemical adhesion between olp and the matrix, confirmed by SEM photomicrographs. The particles can be used in mechanical applications requiring high mechanical and thermal insulation properties.

DOI

10.30684/etj.2024.150924.1772

First Page

1267

Last Page

1276

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