Influence of Heat-Treated Bovine Bone-Derived Hydroxyapatite on Physical Properties and in vitro Degradation Behavior of Poly (Lactic Acid) Composites |
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| Authors: | Suriyan Rakmae Charussri Lorprayoon Sanong Ekgasit |
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| Affiliation: | 1. School of Polymer Engineering , Institute of Engineering, Suranaree University of Technology , Nakhon Ratchasima , Thailand;2. School of Ceramic Engineering , Institute of Engineering, Suranaree University of Technology , Nakhon Ratchasima , Thailand;3. Department of Chemistry , Faculty of Science, Chulalongkorn University , Bangkok , Thailand |
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| Abstract: | In this work, nano-size HA was produced from bovine bone. At various heat treatment temperatures, poorly crystalline, partially crystalline and crystalline forms of HA were obtained. PLA composites were prepared by incorporating various forms and contents of HA into PLA matrix. The characteristics of the obtained HA powders affected properties of PLA composites including mechanical properties, morphologies, PLA molecular weight, in vitro bioactivity and in vitro degradation behaviors of the composites. In the case of in vitro bioactivity study, all composites illustrated the induction of bone-like calcium phosphate compounds on their surfaces, especially the PLA/a-HA composites. |
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| Keywords: | Bioactivity Hydroxyapatite In vitro degradation Physical properties Polymer composite |
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