Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4715
Title: Preparation and characterization of polyLactide-hydroxyapatite biocomposites
Authors: Gültekin, Naz
Tıhmınlıoğlu, Funda
Çiftçioğlu, Rukiye
Çiftçioğlu, Muhsin
Harsa, Hayriye Şebnem
Gültekin, Naz
Tıhmınlıoğlu, Funda
Çiftçioğlu, Rukiye
Çiftçioğlu, Muhsin
Harsa, Hayriye Şebnem
Gültekin, Naz
Tıhmınlıoğlu, Funda
Çiftçioğlu, Rukiye
Çiftçioğlu, Muhsin
Harsa, Hayriye Şebnem
Izmir Institute of Technology. Biotechnology and Bioengineering
Izmir Institute of Technology. Chemical Engineering
Izmir Institute of Technology. Food Engineering
Keywords: Bioactive
Biodegradable
Coupling agents
Hydroxyapatite
Polylactide
Issue Date: 2004
Publisher: Trans Tech Publications
Source: Gültekin, N., Tıhmınlıoğlu, F., Çiftçioğlu, R., Çiftçioğlu, M., and Harsa, H. Ş. (2004). Preparation and characterization of polyLactide-hydroxyapatite biocomposites. Key Engineering Materials, 264-268(III), 1953-1956. doi:10.4028/www.scientific.net/KEM.264-268.1953
Abstract: In the present study, the preparation and characterization of polylactide-Hydroxyapatite(HA) composite films for biomedical applications have been studied. The effects of number of parameters such as polymer type, HA loading, surface modification and its concentration on the mechanical and microstructural properties of the composites were investigated. Poly-L-Lactide and 96/4 Poly(L-Lactide co D-Lactide) copolymer-HA composites containing 10-40 wt% HA particles have been prepared by solvent casting technique. The HA powder was synthesized by precipitation technique. Interfacial interactions between HA and polylactide polymer were modified to improve filler compatibility and mechanical properties of the composites by surface treatment of the HA with two different silane coupling agents; 3-aminopropyltriemoxysilane (AMPTES) and 3-mercaptopropyltrimethoxysilane (MPTMS) at three different concentrations(0.5-2 wt%). Silane treatment indicated improvements in the mechanical properties of the composites compared to the untreated HA loaded polylactide composites. Tensile test results showed that the maximum improvement in the mechanical properties of the composites was obtained for PLA composites containing 1 wt% aminofunctional silane treated HA and 0.5-wt% mercaptopropyltrimethoxy silane treated HA for PDLA composites. Scanning electron microscopy studies also revealed better dispersion of silane treated HA particles in the polymer matrix.
URI: http://doi.org/10.4028/www.scientific.net/KEM.264-268.1953
http://hdl.handle.net/11147/4715
ISSN: 1013-9826
Appears in Collections:Bioengineering / Biyomühendislik
Chemical Engineering / Kimya Mühendisliği
Food Engineering / Gıda Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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