Detail Cantuman Kembali
PRODUCTION OF NANO SIZE POWDER FOR IMPLANT MATERIAL FROM EXTRACTED CLAMSHELL (ANADARA ANTIQUATA) BY USING BALL MILL PROCESSING
- Bagikan:
Reposition to the splicing of fractured bones using metal pin have some
disadvantages, i.e the surgery has to be conducted at least 2 times that may cause
injury to the patients. Mechanical and physical attributes of metal pin are very
different compared to human bones. Pin causes stress shielding effect and allergic
reaction. The weakness of metal pin could be overcome by using artificial bone as an
implant material. Artificial bone as implant material needs high quality
hydroxyapatite in ultra refined size (nanometer scale) so that its physical and
mechanical properties approaches natural human bone. One of the sources for
hydroxyapatite is the clamshell of the Blood Clamshell (AnadaraAntiquata).
These clamshellswere processed into nanometer-sized hydroxyapatite powder by
using ball mill processing. Ball milling was conducted with different grinding media,
i.e. ceramic ball and stainless steel ball. Clamshell powder heated until 800ᵒC ceramic
and stainless steel balls. Milling speed was 100 RPM at the beginning and slowly
raised to 200 RPM, for 60 minutes milling time. The obtained powder is observed by
using scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy
(EDX) and X-ray diffraction (XRD).
The results showed that there is no significant effect different ball material on a grain
fineness number. Therefor Ceramic balls grain fineness is 198 while stainless steel
balls are 211. Changing the morphology of powder from the shoot like to finely
grained lump increases the weight percentage of calcium (CA) from 34.42% to
49.67% with average crystal size of 82.583 nm. The mineral phase is calcium
carbonate and calcium hydroxide.
Keywords: Pin, Bone, Hydroxyapatite, Powder, Clam, Ball Mill, Calcium.
Resti Gundini
Gundini, Resti - Personal Name
First Edition
014.85
011.75
Text
Indonesia
2014
Padang
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