표제지
Abstract
국문초록
목차
1. 서론 14
1.1. 폴리이미드(PI)의 특징 14
1.2. PI의 구조적 특성 14
1.3. 나노 필러(nano-filler) 15
1.4. 개발 현황 및 연구 동향 16
1.5. 연구 목적 17
2. 실험 19
2.1. 시약 및 재료 19
2.2. 나노 필러의 제조 19
2.3. PAA 및 나노 복합체 PI 하이브리드 필름의 합성 20
2.4. 특성조사 23
3. 실험 결과 25
3.1. 나노 필러 합성 결과 25
3.2. PI 합성 결과 28
3.3. PI 하이브리드 필름의 광각 X-선 회절도 32
3.4. PI 하이브리드 필름의 모폴로지 34
3.5. PI 하이브리드 필름의 열적 특성 38
3.6. PI 하이브리드 필름의 기계적 특성 45
3.7. PI 하이브리드 필름의 광학적 특성 48
4. 결론 53
참고문헌 54
Table 1. Heat treatment conditions of the PI hybrid films. 21
Table 2. Thermal properties of the PI hybrid films with different fillers. 39
Table 3. Mechanical properties of the PI hybrid films with different fillers. 47
Table 4. Optical properties of the PI hybrid films with different fillers. 49
Figure 1. FT-IR spectra of (a) GO, (b) C8-GS, (c) BTN, and (d) C8-BTN. 26
Figure 2. FE-SEM images of (a) GO and (b) C8-GS at magnifications of 10,000x (left) and 50,000x (right). 27
Figure 3. Non-contact-mode AFM images of C8-GS and line scan height profile along path indicated in images. 29
Figure 4. FT-IR spectrum of PI. 30
Figure 5. 13C-NMR spectrum of PI. 31
Figure 6. XRD patterns of the PI and PI hybrid films with different fillers. (a) C8-GS and (b) C8-BTN. 33
Figure 7. FE-SEM images of PI hybrid films with different C8-GS contents at magnifications of 10,000x (left) and 50,000x... 35
Figure 8. TEM images of the PI hybrid films with different C8-GS contents at magnifications of 10,000x (left) and 50,000x... 36
Figure 9. TEM images of the PI hybrid films with different C8-GS contents of (a) 0.50 wt% and (b) 1.00 wt% at various magnifications. 37
Figure 10. DSC thermograms of the pure PI and PI hybrid films different fillers. (a) C8-GS and (b) C8-BTN. 40
Figure 11. TGA thermograms of the pure PI and PI hybrid films with different fillers. (a) C8-GS and (b) C8-BTN. 43
Figure 12. TMA thermograms of the pure PI and PI hybrid films with different fillers. (a) C8-GS and (b) C8-BTN. 44
Figure 13. UV-vis transmittances of the pure PI and PI hybrid films with different fillers. (a) C8-GS and (b) C8-BTN. 50
Figure 14. Photographs of the PI hybrid films with different fillers. (a) 0 wt%(pure PI), (b) 0.50 wt% C8-BTN, and (c) 0.50... 51
Supplement-Figure 1. TGA thermograms of C8, C8-GS, and C8-BTN. 59
Scheme 1. Synthesis route for the fabrication of the PI hybrid films 22