Reactor Powder Type 'R' & Sintered
Powder Type 'S'
CAPTAL® Hydroxlapatite is a high purity synthetic product
having a very similar composition to that of the mineral content
in human bone. It is thermally stable to 1300ºC in air retaining
a highly crystalline structure.
CAPTAL® 'R' manufactured by PBLcan be supplied to various
specifications, which are suitable for different applications
in the biomedical field.
For example current uses include;
CAPTAL® 'R' is available with the following size distribution
(slight variation is possible)
D10=Approx 2 microns
D50=Approx 4 microns
D90=Approx 6 microns
(measured by laser diffraction)
CAPTAL® is supplied with a mainly monomodal Particle size
distribution, however, slightly bimodal batches can be produced.
The surface areas can be controlled from approx 6m2/gram to approx
20m2/gram (measured by B.E.T.method)
CAPTAL® 'S' has been developed for uses that CAPTAL®
'R' is unsuitable. It has beensintered to a high temperature
and regraded by milling and air elutriation.
The surface of the particles is quite different and consequently
the properties such as bulk density are much higher than CAPTAL®
'R' .
CAPTAL® 'S' is a pale eggshell blue colour. The crystalinity
is higher than CAPTAL® 'R' and its flow characteristics are
enhanced.
CAPTAL® 'S' is available witha broad size range if required
which may be important for some applications. (a wide variation
is possible if required)
D10=Approx 2 microns
D50=Approx 6 microns
D90=Approx 12 microns
CAPTAL® 'S' is supplied with a broad particle size distribution.
The high purity and crystalinity of these products ensures
low resorption rates when used in vivo with excellent biocompatibility
when used in bony sites.
