Influence of the Processes Parameters on the Properties of The ...

Table 6.1: Initial Taguchi plans for scCO 2 foaming <strong>of</strong> pellets prepared by wet and dry method. ................. 148
Table 6.2: P L,D LA foams pore data <strong>of</strong> wet and dry method by initial Taguchi’ plan. .................................... 148
Table 6.3: Complementary Taguchi plans for scCO 2 foaming <strong>of</strong> pellets prepared by wet and dry method. . 151
Table 6.4: P L,D LA foams pore data <strong>of</strong> wet and dry method by complementary Taguchi plan. ..................... 151
Table 6.5: P L,DL LA foams pore data <strong>of</strong> wet and dry method by initial Taguchi’ plan. .................................. 155
Table 6.6: P L,DL LA foams pore data <strong>of</strong> wet and dry method by complementary Taguchi plan. .................... 156
Table 6.7: P L,D LA equivalent pore diameter and geometric porosity results for both methods and plans. .... 159
Table 6.8: P L,DL LA equivalent pore diameter and geometric porosity results for both methods and plans. .. 159
Table 6.9: PLGA 50:50 foams pore data <strong>of</strong> wet and dry method by initial Taguchi plan. ................................ 162
Table 6.10: PLGA 50:50 foams pore data <strong>of</strong> wet and dry method by complementary Taguchi plan. ............... 163
Table 6.11: PLGA 85:15 foams pore data <strong>of</strong> wet and dry method by initial Taguchi plan. .............................. 167
Table 6.12: PLGA 85:15 foams pore data <strong>of</strong> wet and dry method by complementary Taguchi plan. ............... 169
Table 6.13: PLGA 50:50 equivalent pore diameter and porosity results for both methods and plans. .............. 171
Table 6.14: PLGA 85:15 equivalent pore diameter and porosity results for both methods and plans ............... 172
Table 6.15: Comparison <strong>of</strong> foam porosities obtained by two different methods. .......................................... 177
Table 6.16: Compressive modulus and compressive strength <strong>of</strong> polymer foams by both methods. ............. 178
Table 6.17: Contact Angle between water and pellets constituted by HA, PLGA or HA-PLGA blends. ..... 181
Table 6.18: Angle measured by different liquids on PLGA pellet ................................................................ 182
Table 6.19: Comparison <strong>of</strong> energies by two different methods for PLGA and PLGA/HA blends ............... 183
Table 6.20: scCO 2 process conditions for PLGA/HA foams. ........................................................................ 185
Table 6.21: Pore analysis for PLGA 85:15 foams processed at P sat = 120 bars, t sat = 20 min and T sat = 35 o C. .. 186
Table 6.22: Pore analysis data for blends PLGA 85:15 /HA 10% foams. .......................................................... 186
Table 6.23: Blend PLGA 85:15 /HA 10% foams processed at P sat =120 bars, t sat =20 min. and dP/dt = 3 bar/s .. 188
Table 6.24: PLGA 85:15 /10%HA composite foams pore data process at P sat =120 bars and t sat =20 min. ......... 188
Table 7.1: Position <strong>of</strong> resulting bands in <strong>the</strong> FTIR analysis. ......................................................................... 191
Table 7.2: Position <strong>of</strong> bands in FTIR for amorphous calcium phosphate (ACP). ......................................... 192
Table 7.3: Position <strong>of</strong> bands in FTIR for o<strong>the</strong>r groups. ................................................................................. 193
Table 7.4: Position <strong>of</strong> bands in FTIR for pyrophosphate. .............................................................................. 193
Table 7.5: Thermodynamics transitions and <strong>the</strong>rmal properties <strong>of</strong> <strong>the</strong> waxes. .............................................. 195
Table 7.6: Levels selected for each parameter <strong>of</strong> <strong>the</strong> scaffold and foaming process with supercritical CO 2 at
(T sat = 50°C, dP/dt = 3 bar/min and t sat = 20 min). ..................................................................... 196
Table 7.7: PLGA 85:15 and P L,D LA Foams pore data with different % <strong>of</strong> tricalcium phosphate. ..................... 197
Table 7.8: Mass ratio <strong>of</strong> polymer and different waxes and Taguchi’ plan (L 9 ) for polymer-wax blend foams.
.................................................................................................................................................... 198
Table 7.9: Equivalent pore diameter <strong>of</strong> pure P L,DL LA and polymer-wax blend foams. ................................. 201
Table 7.10: Geometric porosity <strong>of</strong> pure P L,DL LA and polymer-wax blend foams. ........................................ 201
Table 7.11: Pure P L,DL LA and polymer-wax blend equivalent pore diameter and porosity results. .............. 202
Table 7.12: Equivalent pore diameter and geometric porosity <strong>of</strong> foams <strong>of</strong> composite plus wax by simple
mixing processed at T sat 45°C, t sat 20 min, and dP/dt 3bar/s............................................... 204
Table 7.13: Equivalent pore diameter and geometric porosity <strong>of</strong> foams <strong>of</strong> composite plus wax by co-grinding
processed at two saturation presures. ......................................................................................... 206
Table 7.14: Composition <strong>of</strong> pellets <strong>of</strong> different polymer particle size and with variable % <strong>of</strong> wax. ............ 207
Table 7.15: Pore diameter <strong>of</strong> foams with different particle size and with variable % <strong>of</strong> wax. ...................... 207
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