Title Page
Contents
Abstract 7
1. Introduction 10
2. Experiments 15
2.1. Materials 15
2.2. Preparation of Poly(amic acid) Solid 16
2.3. Fabrication of crosslinked Poly(amic acid) Solid 18
2.4. Preparation of Polyimide (PI) Aerogels 19
2.5. Preparation of PI/CNT Composite Aerogels 21
2.6. Characterization 24
2.6.1. Fourier-Transform Infrared spectroscopy (FT-IR) 24
2.6.2. ThermoGravimetric Analysis (TGA) 24
2.6.3. Field Emission Scanning Electron Microscopy (FE-SEM) 24
2.6.4. Universal Testing Machine (UTM) 25
2.6.5. True-rms Digital Multimeters 26
2.6.6. Calculation of bulk density, skeletal density, and porosity 26
3. Results and Discussion 28
4. Conclusion 84
5. Reference 87