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Page 33
Journal of Chemical Technology and Applications | Volume 2
Annual Spring Conference and Expo on
April 04-05, 2018 | Miami, USA
Chemical Engineering: From
Materials Engineering to Nanotechnology
allied
academies
T
his current study aims to develop a biocomposite to be used
as an orthopedic device, using poly(3-hydroxybutyrate-co-
3-hydroxyvalerate) P(HB-HV), a biodegradable copolymer, with
94%HB and 6%HV, as matrix; and nanodiamonds (ND) with
primary grains of 4-6nm, as reinforcement. The nanodiamonds
were previously encapsulated by P(HB-HV) and specimens were
preparedusingan injectionmoldingmachine. Thebiocomposite
P(HB-HV) probes were analyzed by XRD, TGA, flexural testing
and compresion DMA tests. The distribution of nanodiamonds
on the specimen fracture surface were investigated by SEM.
The SEM micrographs allowed us to concluded that the
encapsulation of nanodiamonds by P(HB-HV) was successfully
performed, promoting a better interface and distribution in the
polymeric matrix. The presence of ND in the polymeric matrix
decreased the P(HB-HV) crystallinity, inhibiting the crystallite
growth. The mechanical properties obtained from flexural test
and DMA of the injection-molded specimens were promise
to material for bone filling Evaluated by in vitro testing, all
formulations were non-cytotoxic.
e:
sanchez@uenf.brProperties of P (HB-HV) / nanodiamonds as material for orthopedic use
Rubén Jesus Sánchez Rodríguez, Gabriel Rodrigues de Almeida Neto, Fabrício Moreira Almeida, José Gregório Cabrera Gomez
and
Mariana Valinhos
Barcelos
North State Fluminense University, Brazil