|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Green Materials Engineering: An EPD Symposium in Honor of Sergio Monteiro
||Thermal Characterization of a Nanobiocomposite for Use in Bone Defects
||Teresa Castillo, Leila C.B. Siqueira, Ruben Jesus Sanchez Rodriguez
|On-Site Speaker (Planned)
Poly (3-hydroxybutyrate) nanocomposite were formulated encapsulating nHAp with 150 nm average diameters. The nanocomposite P3HB/nHAp obtained with 18%w/w of nHAP was characterized by microscopic and thermal techniques.
The thermal performance of these regular spheres (5Ám averages particles sizes) was assessed observing the effect of the HAP nanoparticles in thermal degradation of P3HB matrix. The onset (Tonset) and maximum loss mass degradation (Tmax) temperatures of nanocomposite were reduced in relation to P3HB. This lower thermal stability of the nanocomposite was justify from inefficient barrier effect of agglomerated nanoparticles of HAP in polymer matrix and their catalytic effect on P3HB thermal degradation process. In the DSC measurements was observed a decreasing effect on P3HB crystallization. The ΔHm was reduced from 101,5 to 81 J/g due to nHAP-P3HB interaction.
||Planned: None Selected