文摘
英文文摘
论文说明:Abbreviations
声明
ACKNOWLEDGMENT
CHAPTER 1 INTRODUCTION
1.1 SUPERCRITICAL FLUID
1.2 CARBON DIOXIDE
1.3 APPLICATIONS OF SUPERCRITICAL FLUID
1.3.1 Formation of particles by supereritical fluid
1.3.2 Supereritical fluid extraction
1.3.3 SUPERCRITICAL FLUID IMPREGNATION
1.3.4 SUPERCRITICAL FLUID DRYING
1.4 SILICA
1.4.1 Imtroduction
1.4.2 Preparation methods fine silica
1.4.3 Silica as an absorbant
1.5 OBJECTIVE OF THIS WORK
CHAPTER 2 PREPARATION OF SILICA PARTICLES
2.1 LITERATURE SOL-GEL PREPARATIONS
2.1.1 Ading
2. 1.2 Effect of factors on aging
2.1.3 Importance of a solvent particle formation
2.1.4. Drying
2.1.5 Comparison between ScCO2 drying and drying at ambient pressure
2.1.6 Water glass(or sodium silicate)method
2.2 PREPARATION OF SILICA PARTICLES
2.2.1 Raw materials and reagents used
2.2.2 Instruments used in this esperiment
2.2.3 Sol-gel preparation
2.2.4 Supercritcal CO2 drying
2.3 PARTICLE CHARACTERIZATION
2.3.1 FT-IR results
2.3.2Particle piorphology
2.3.3Spedifie surface ares
2.4 Summary
CHAPTER 3 IMPREGNATION OF 2-PHENYL ETHANOL INTO SILICA POWDER
3.1 INTRODUCTION
3.2 FLAVOR VAPOR IMPREGNATION (FVI)
3.2.1 Materials
3.2.2 Experimental procedure
3.2.3 Resrlts and discussion
3.3 SUPERCRITICAL FLUID IMPREGNATION (SFI)
3.3.1 Materials
3.3.2Experimental setup and procedure
3.3.3 Adsorption results and discussion
3.2.5 Thermo gravimetric analysis
2.2.6 FT-IR analysis
3.2.7 The effect of pressure on flavor release
3.4 MODELING OF SFI
3.5 SUMMARY
REFERENCES
APPENDIX
DEDICATION
厦门大学;