| ACKNOWLEDGMENT | 第1-6页 |
| ABSTRACT | 第6-7页 |
| 摘要 | 第7-12页 |
| CHAPTER1 INTRODUCTION | 第12-28页 |
| ·SUPERCRITICAL FLUID | 第12-13页 |
| ·CARBON DIOXIDE | 第13-14页 |
| ·APPLICATIONS OF SUPERCRITICAL FLUID | 第14-23页 |
| ·FORMATION OF PARTICLES BY SUPERCRITICAL FLUID | 第14-17页 |
| ·SUPERCRITICAL FLUID EXTRACTION | 第17-19页 |
| ·SUPERCRITICAL FLUID IMPREGNATION | 第19-20页 |
| ·SUPERCRITICAL FLUID DRYING | 第20-23页 |
| ·SILICA | 第23-27页 |
| ·INTRODUCTION | 第23-24页 |
| ·PREPARATION METHODS OF FINE SILICA | 第24-25页 |
| ·SILICA AS AN ABSORBANT | 第25-27页 |
| ·OBJECTIVE OF THIS WORK | 第27-28页 |
| CHAPTER2 PREPARATION OF SILICA PARTICLES | 第28-42页 |
| ·LITERATURE SOL-GEL PREPARATIONS | 第28-34页 |
| ·AGING | 第30-31页 |
| ·EFFECT OF FACTORS ON AGING | 第31页 |
| ·IMPORTANCE OF A SOLVENT ON PARTICLE FORMATION | 第31-32页 |
| ·DRYING | 第32-33页 |
| ·COMPARISON BETWEEN SCCO_2 DRYING AND DRYING AT AMBIENT PRESSURE | 第33页 |
| ·WATER GLASS(OR SODIUM SILICATE)METHOD | 第33-34页 |
| ·PREPARATION OF SILICA PARTICLES | 第34-37页 |
| ·RAW MATERIALS AND REAGENTS USED | 第34页 |
| ·INSTRUMENTS USED IN THIS EXPERIMENT | 第34-35页 |
| ·SOL-GEL PREPARATION | 第35-36页 |
| ·SUPERCRITICAL CO_2 DRYING | 第36-37页 |
| ·PARTICLE CHARACTERIZATION | 第37-40页 |
| ·FT-IR RESULTS | 第37-40页 |
| ·SUMMARY | 第40-42页 |
| CHAPTER3 IMPREGNATION OF 2-PHENYL ETHANOL INTO SILICA POWDER | 第42-57页 |
| ·INTRODUCTION | 第42-43页 |
| ·FLAVOR VAPOR IMPREGNATION(FVI) | 第43-46页 |
| ·MATERIALS | 第43页 |
| ·EXPERIMENTAL PROCEDURE | 第43-44页 |
| ·RESULTS AND DISCUSSION | 第44-46页 |
| ·SUPERCRITICAL FLUID IMPREGNATION(SFI) | 第46-53页 |
| ·MATERIAIS | 第46页 |
| ·EXPERIMENTAL SETUP AND PROCEDURE | 第46-48页 |
| ·ADSORPTION RESULTS AND DISCUSSION | 第48-50页 |
| ·THERMO GRAVIMETRIC ANALYSIS | 第50-51页 |
| ·FT-IR ANALYSIS | 第51-52页 |
| ·The effeet of Pressure on flavor release | 第52-53页 |
| ·MODELING OF SFI | 第53-55页 |
| ·SUMMARY | 第55-57页 |
| REFERENCES | 第57-64页 |
| APPENDIX A | 第64-67页 |
| Table A1.Flavor Impregnaiotn rate in MCM41 at 50“C by FVI | 第64页 |
| TABLE A2.FLAVOR IMPREGNATION RATE IN DRIED MCM41 AT 50℃ BY FVI | 第64页 |
| Table A3.Flavor Impregnaiotn rate in MCM41 at 50“C by FVI | 第64-65页 |
| TABLE A4.FLAVOR IMPREGNATION RATE IN MCM41 AT 70℃ BY FVI | 第65页 |
| TABLE A5.FLAVOR IMPREGNATION RATE IN MCM41 AT 75℃ BY FVI | 第65页 |
| TABLE A6.FLAVOR IMPREGNATION RATE IN MCM41 AT 80℃ BY FVI | 第65-66页 |
| TABLE A7.ADSORPTION EQUILIBRIUM DATA FOR FLAVOR ONTO SILICA MCM41 BY FVI | 第66页 |
| TABLE A8.FLAVOR IMPREGNATION RATE IN AEROGEL 1 AT 50℃ BY FVI | 第66-67页 |
| APPENDIX B | 第67-69页 |
| TABLE B1.FLAVOR IMPREGNATION RATE IN MCM41 BY SFI AT 18MPA AND 50℃ | 第67页 |
| TABLE B2.FLAVOR IMPREGNATION RATE IN DRIED MCM41 BY SFI AT 18MPA AND 50℃ | 第67页 |
| TABLE B3.FLAVOR IMPREGNATION RATE IN AEROGEL 2 BY SFI AT 18MPA AND 50℃ | 第67-68页 |
| TABLE B4.PHASE EQUILIBRIUM DATA OF CO_2+2-PHENYLETHANOL AT(313.1 AND 323.1)K | 第68页 |
| TABLE B5.FLAVOR RELEASE(MASS FRACTION)FROM SILICA IMPREGNATED AT DIFFERENT PRESSURES | 第68-69页 |
| DEDICATION | 第69页 |
