PMID- 31687481 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200929 IS - 2405-8440 (Print) IS - 2405-8440 (Electronic) IS - 2405-8440 (Linking) VI - 5 IP - 10 DP - 2019 Oct TI - Structural performance of poultry eggshell derived hydroxyapatite based high density polyethylene bio-composites. PG - e02552 LID - 10.1016/j.heliyon.2019.e02552 [doi] LID - e02552 AB - In this research, hydroxyapatite (HAp) was synthesized from chicken eggshell waste by hydrothermal method for the development of bio-composite material suitable for biomedical implant. However, since environmental influences on natural materials are unique for different geographical locations in the world, the use of agro wastes from these locations need to be investigated. This work provides the detail results of the potentials of eggshell as HAp source. High-density polyethylene (HDPE)/HAp composites were developed by random dispersion of Hap (10, 20, 30 and 40 wt.%) in HDPE matrix, and were designated as HAC10, HAC20, HAC30, and HAC40. The HAp-filled HDPE composites were developed by a hot compression moulding process. The samples were subjected to tensile, flexural, impact, fracture toughness and wear tests according to ASTM standards in order to establish their structural performance as an implant material. Furthermore, the samples were also tested for hydrophilicity using tap water and simulated body fluid (SBF). X-ray diffraction analysis showed strong peaks of hydroxyapatite phase which established that the influence of the selected processing conditions on the poultry eggshell as a natural source for the biomedical application was suitable for the synthesis of high-quality hydroxyapatite. The mechanical properties of the developed composites were enhanced to the level of the required properties expected of an implant material compared to the control sample except for impact strength. Water absorption characteristics of the developed composite samples also displayed expected behaviour in SBF solution than in tap water thereby promoting the material as a good implant material. From the results, the sample with 40 wt.% HAp possess the highest values in the mechanical properties examined while sample from 20 wt.% had the best fracture toughness. The results revealed that these waste eggshells could be successfully converted into useful biocompatible HAp particles needed for the enhancement of the mechanical properties of polymer composites to meet the structural challenges of bio-composites. CI - (c) 2019 The Authors. FAU - Oladele, Isiaka Oluwole AU - Oladele IO AD - Department of Metallurgical and Materials Engineering, Federal University of Technology Akure, PMB 704, Ondo State, Nigeria. FAU - Agbabiaka, Okikiola Ganiu AU - Agbabiaka OG AD - Department of Metallurgical and Materials Engineering, Federal University of Technology Akure, PMB 704, Ondo State, Nigeria. FAU - Adediran, Adeolu Adesoji AU - Adediran AA AD - Department of Mechanical Engineering, Landmark University, Omu-Aran, PMB 1001, Kwara State, Nigeria. FAU - Akinwekomi, Akeem Damilola AU - Akinwekomi AD AD - Department of Metallurgical and Materials Engineering, Federal University of Technology Akure, PMB 704, Ondo State, Nigeria. FAU - Balogun, Augustine Olamilekan AU - Balogun AO AD - Department of Metallurgical and Materials Engineering, Federal University of Technology Akure, PMB 704, Ondo State, Nigeria. LA - eng PT - Journal Article DEP - 20191022 PL - England TA - Heliyon JT - Heliyon JID - 101672560 PMC - PMC6820092 OTO - NOTNLM OT - Bio-composites OT - Biomedical engineering OT - Biomedical materials OT - High-density polyethylene OT - Hydroxyapatite OT - Materials application OT - Materials science OT - Poultry eggshell OT - Structural performance EDAT- 2019/11/07 06:00 MHDA- 2019/11/07 06:01 PMCR- 2019/10/22 CRDT- 2019/11/06 06:00 PHST- 2019/02/12 00:00 [received] PHST- 2019/06/14 00:00 [revised] PHST- 2019/09/27 00:00 [accepted] PHST- 2019/11/06 06:00 [entrez] PHST- 2019/11/07 06:00 [pubmed] PHST- 2019/11/07 06:01 [medline] PHST- 2019/10/22 00:00 [pmc-release] AID - S2405-8440(19)36212-7 [pii] AID - e02552 [pii] AID - 10.1016/j.heliyon.2019.e02552 [doi] PST - epublish SO - Heliyon. 2019 Oct 22;5(10):e02552. doi: 10.1016/j.heliyon.2019.e02552. eCollection 2019 Oct.