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Research Article

Investigation of the influence of mineral fillers on the structural and mechanical characteristics of polyethylene high-density (PEHD) composites reinforced with alumina and talc

Fatma Zohra Benabid1, Said Mohamed El Cheikh Mohamed Salem1, Oum Keltoum Mallem1, Foued Zouai2

1Laboratory of Multiphase Polymeric Materials (LMPMP), Department of Process Engineering, Faculty of Technology, Ferhat ABBAS University Sétif1, Algeria
2Biopharmacy and Pharmacotechnics Laboratory, Faculty of Medicine, Sétif, Algeria

Keywords

Abstract


Composites;

 Alumina; 

 Talc; 

 Binary fillers; 

 Co-mixing;

 Synergistic effect



This study explores the impact of incorporating a blend of alumina and talc, ranging from 1 to 7%, into high-density polyethylene (HDPE) to modify its structural, rheological, and mechanical properties. Comparative evaluations with HDPE/Alumina and HDPE/Talc composites were conducted. The dual-filler combination was achieved through dry grinding, followed by melt processing with a Brabender plastograph. FTIR spectroscopy analysis of HDPE/ (alumina + talc) composites revealed interactions between aluminum and oxygen, with a peak at 700 cm-1 indicating alumina integration into the HDPE matrix, influencing composite properties. Impact strength decreased with talc inclusion but significantly improved with alumina. Notably, a 5% blend of HDPE/(alumina-talc) fillers exhibited the highest impact resistance. Tensile stress showed peaks at 1% talc content and a 3% filler mixture, emphasizing synergistic effects and talc's superiority over alumina. Synergism in elongation at break was observed for HDPE/ (alumina + talc) composites. Additionally, HDPE/Alumina composites displayed the highest modulus of elasticity, while HDPE/(Alumina + Talc) composites had the highest melt flow index. Surface treatments promoted uniform filler dispersion within the HDPE matrix, enhancing mechanical properties. Overall, composites with binary fillers harnessed synergistic effects, combining advantages from both components.

© 2024 MIM Research Group. All rights reserved.

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LATEST AWARDS


2023 Reviewer Awards:

Please, visit Reviewer Awards section for the winners of the 2022 RESM reviewer awards.



2023 Best Paper Award:

The paper authored by Ferzan Fidan, Naim Aslan, Mümin Mehmet Koç entitled as “Morpho-structural and compressive mechanical properties of graphene oxide reinforced hydroxyapatite scaffolds for bone tissue applications” is awarded.



2023 Most Cited Paper Award:

The paper authored by Ercan Işık, Ehsan Harirchian, Hüseyin Bilgin, Kirti Jadhav entitled as “The effect of material strength and discontinuity in RC structures according to different site-specific design spectra" is awarded.


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