Effect of Joncryl61 and gelatin in the formation of hydroxyapatite nanocomposite

Hydroxyapatite (HAp) is a bioceramic known for bone applications due to its physical and chemical properties similar to the human bone. In this present study, HAp nanopowder was synthesised using chemical precipitation method in the presence of polymers Joncryl61 (acrylic resin) and gelatin (biopolymer). The crystalline nature of synthesised pure and polymer-added hydroxyapatite was confirmed by powder X-ray diffraction pattern and the FTIR pattern peaks present at 604-624 cm(-1) revealing the presence of phosphate phase. Morphological studies using SEM revealed the presence of rod-shaped, agglomerated rod-shaped and rod shape with small sphere dumbbell structure in pure HAp, HAp with Joncryl61 and HAp with gelatin respectively. The dielectric properties of pure and polymer-doped HAp were also examined at room temperature with frequency from 50 to 5,000,000 Hz. The dielectric constant and loss were found to be maximum when the frequency was low.