Influence of the Processes Parameters on the Properties of The ...
Influence of the Processes Parameters on the Properties of The ...
Influence of the Processes Parameters on the Properties of The ...
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Figure 6.36: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> particle before grinding. .................................................................................. 179<br />
Figure 6.37: Evoluti<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> particle size distributi<strong>on</strong> for PLGA+HA co-grinding. .................................... 180<br />
Figure 6.38: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> blend PLGA+ HA after different co-grinding time. ........................................ 181<br />
Figure 6.39: Surface evoluti<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> blend PLGA 85:15 + 10% HA pellets with co-grinding time. ..................... 182<br />
Figure 6.40: <str<strong>on</strong>g>Influence</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> co-grinding and <str<strong>on</strong>g>the</str<strong>on</strong>g> ratio <str<strong>on</strong>g>of</str<strong>on</strong>g> HA <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g> dispersive comp<strong>on</strong>ent <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> blend<br />
surface energy.PLGA/HA. ......................................................................................................... 183<br />
Figure 6.41: <str<strong>on</strong>g>Influence</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> co-grinding time and <str<strong>on</strong>g>the</str<strong>on</strong>g> ratio <str<strong>on</strong>g>of</str<strong>on</strong>g> HA <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g> comp<strong>on</strong>ents Acid-Base <str<strong>on</strong>g>of</str<strong>on</strong>g> surface<br />
energy. ........................................................................................................................................ 184<br />
Figure 6.42: <str<strong>on</strong>g>Influence</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> co-grinding time and <str<strong>on</strong>g>the</str<strong>on</strong>g> ratio <str<strong>on</strong>g>of</str<strong>on</strong>g> HA <strong>on</strong> S nd and S ............................................. 184<br />
Figure 6.43: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> PLGA 85:15 foams at P sat = 120 bars , t sat = 20 min and T sat = 35 o C, [50×]. ........ 185<br />
Figure 6.44: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> blends PLGA 85:15 /HA 10% foams processed at P sat = 120 bars, t sat = 20 min, T sat<br />
= 35 o C, [100×]. .......................................................................................................................... 186<br />
Figure 6.45: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> blend PLGA/HA 10% foams processed at P sat = 120 bars, t sat = 20 min and<br />
dP/dt = 3 bar/s. ........................................................................................................................... 187<br />
Figure 7.1: IR absorpti<strong>on</strong> spectrum <str<strong>on</strong>g>of</str<strong>on</strong>g> amorphous tricalcium phosphate (ATCP) doped with 10% Sr. ....... 192<br />
Figure 7.2: IR absorpti<strong>on</strong> spectrum <str<strong>on</strong>g>of</str<strong>on</strong>g> amorphous calcium phosphate (ACP) doped with 10% Sr after<br />
calcinati<strong>on</strong> 24 h. ......................................................................................................................... 192<br />
Figure 7.3: IR absorpti<strong>on</strong> spectrum <str<strong>on</strong>g>of</str<strong>on</strong>g> tricalcium phosphate doped with 10% Sr after 2 hours <str<strong>on</strong>g>of</str<strong>on</strong>g> calcinati<strong>on</strong>.<br />
................................................................................................................................................... 193<br />
Figure 7.4: Particles size <str<strong>on</strong>g>of</str<strong>on</strong>g> two different tricalcium phosphates analyzed by granulometry. ...................... 194<br />
Figure 7.5: Melting and crystallisati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> wax A (TERHELL-907). ...................................................... 194<br />
Figure 7.6: TGA curve <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> wax-A (907). .................................................................................................. 195<br />
Figure 7.7: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> PLGA 85:15 (8523) + tricalcium phosphate processed at scCO 2 c<strong>on</strong>diti<strong>on</strong>s- T sat<br />
50°C, t sat 20 min, dP/dt 3bar/s and varying P sat. ................................................................. 196<br />
Figure 7.8: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> P L,D LA + tricalcium phosphate processed at scCO 2 c<strong>on</strong>diti<strong>on</strong>s- T sat 50°C, t sat <br />
20 min, dP/dt 3bar/s and varying P sat. .................................................................................... 197<br />
Figure 7.9: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> P L,DL LA foams at different process c<strong>on</strong>diti<strong>on</strong>s. ................................................. 199<br />
Figure 7.10: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> P L,DL LA +(10%) wax-A foams at different process c<strong>on</strong>diti<strong>on</strong>s. ...................... 199<br />
Figure 7.11: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> P L,DL LA +(20%) wax-A foams at different process c<strong>on</strong>diti<strong>on</strong>s. ...................... 200<br />
Figure 7.12: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> P L,DL LA +(30%) wax-A foams at different process c<strong>on</strong>diti<strong>on</strong>s. ...................... 200<br />
Figure 7.13: Average effect <str<strong>on</strong>g>of</str<strong>on</strong>g> wax-A <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g> equivalent pore diameter for polymer wax blends. ............... 202<br />
Figure 7.14: Average effect <str<strong>on</strong>g>of</str<strong>on</strong>g> wax-A <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g> geometric porosity for polymer wax blends. ......................... 202<br />
Figure 7.15: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> foams obtained by simple mixing <str<strong>on</strong>g>of</str<strong>on</strong>g> polymer and wax and processed - at [T sat<br />
45°C, P sat 120 bars, t sat 20 min, dP/dt 3bar/s]. ................................................................. 204<br />
Figure 7.16: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> foams obtained by simple mixing <str<strong>on</strong>g>of</str<strong>on</strong>g> polymer and wax and processed at [T sat<br />
45°C, P sat 100 bars t sat 20 min, dP/dt 3bar/s]. .................................................................. 204<br />
Figure 7.17: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> foams obtained by co-grinding polylactide and fillers processed at T sat 45°C,<br />
P sat 120 bars, t sat 20 min and dP/dt 3 bar/s. ........................................................................ 205<br />
Figure 7.18: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> foams obtained by co-grinding polylactide and fillers processed at................ 206<br />
Figure 7.19: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> foams c<strong>on</strong>taining different percentages <str<strong>on</strong>g>of</str<strong>on</strong>g> wax A. .......................................... 208<br />
Figure 7.20: Effect <str<strong>on</strong>g>of</str<strong>on</strong>g> particle size <str<strong>on</strong>g>of</str<strong>on</strong>g> polymer and different % <str<strong>on</strong>g>of</str<strong>on</strong>g> wax <strong>on</strong> foam pore diameter and porosity.<br />
................................................................................................................................................... 209<br />
Figure 8.1: Micrographs <str<strong>on</strong>g>of</str<strong>on</strong>g> pure polymer and polymer with filler foams processed at scCO 2 c<strong>on</strong>diti<strong>on</strong> T sat =<br />
50 o C, P sat = 100 bars, t sat = 20 min, dP/dt = 3 bar/s. ................................................................... 211<br />
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