Synthesis and characterization of Polyurethane – Titanium Dioxide – Hydroxyapatite nanocomposite for biomedical applications

• Published in: Materials today : proceedings Vol. 3; no. 10; pp. 4052 - 4057
• Main Authors: Ratnakar, A., Hari Prasad, K., Vivekananthan, S., Karthika, PC, Kumar, Aashutosh
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2016
• Subjects: Enhanced mechanical property; Hydroxyapatite; In vitro biocompatibility; Nanocomposite; Polyurethane matrix; Simulated body fluid tests; Tensile test; Titanium di oxide; In vitro biocompatibility; Simulated body fluid tests; Tensile test; Nanocomposite; Titanium di oxide; Hydroxyapatite; Enhanced mechanical property; Polyurethane matrix
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2016.11.072

Need for a stable polymeric material with an excellent biocompatibility property is the most sought one in the field of implant science and engineering. The material’s scale up requires a complex mechanism or environment or the precursors to develop the material itself require an investment, i.e. the overall process cum procedure might not be economical. Here, in this paper, an attempt has been made to synthesize, a polymer based nanocomposite comprising titanium di oxide nanoparticles and hydroxyapatite nanoparticles as fillers; distributed within a polyurethane matrix which is economical and could be scaled up easily. The same has been characterized to understand their structure, morphology, mechanical property and in vitro biocompatibility through XRD, SEM, tensile tests and simulated body fluid tests. From the characterizations it was found that, the material was stable, biocompatible under tough conditions and the material had a simple foam structure (porous) except for which the boundaries that are shared by the pores are rigid providing the material with a good mechanical strength.