Characterization of biocomposites of bovine hydroxyapatite/shellac/sugar as bone filler material

This research delivers the fabrication and characterization of a novel biocomposites material made of bovine hydroxyapatite (BHA)/shellac/sugar for bone filler application. BHA powder was got with the characterization of bovine bone powder with calcined 900°C for 2 hours with heat rate 10°C/min, then shellac 10 ml (liquid of lac secretion) coated BHA. The ratio of composition of shellac coated BHA and sugar were 30:70, 40:60, 50:50, 60:40 and 70:30 %wt. BHA/shellac/sugar sample were pressed at ± 60 Bar into solid bodies using 13 mm cylindrical and thick 8 mm dies and calcined 900 °C for 2 hours with heat rate 10 °C/min. The results showed that XRD intensity of 20 were 31.7425°, 32.8581°, 32.2016°. Hardness Microvickers of BHA/shellac/sugar sample maximum was 7.013±0.454 VHN (70:30) and minimum 6.27±0.287 VHN (50:50). The diametral Tensile Strength of BHA/shellac/sugar sample maximum was 2.765±0.6314 MPa (70:30) and the minimum was 0.386±0.667 MPa (50:50). SEM observation of BHA/shellac/sugar was performed to observe the morphology such as porosity and pore sizes. The size of porous was 100–200 μm. This novel biocomposite is potential for future bone reconstruction caused by fatal injury.