| 학회 | 한국화학공학회 |
| 학술대회 | 2005년 가을 (10/21 ~ 10/22, 인하대학교) |
| 권호 | 11권 2호, p.1633 |
| 발표분야 | 고분자 |
| 제목 | Thermogravimetric analysis of silicone/clay nanocomposites |
| 초록 | Difunctional hydroxyl-terminated poly(dimethylsiloxane) (PDMS) was used to synthesize end-linked networks in bulk state. Silicone rubber cured with PDMS, tetrafunctional cross-linkers and tetrapropyl orthosilicate (TPOS) Γ-aminopropyl triethoxy silane (APTES) was added to introduce amine groups to the silicone rubber. In addition, the silicone rubber was compounded with Cloisite®25A(C25A), C20A and C30B. Higher degree of exfoliation of the silicate layers was obtained in all of ! the silicone/clay composites. The kinetics of the thermal degradation and thermal stability of the silicone rubber and its composites with C25A, C20A and C30B was studied by the thermogravimetric analysis under a nitrogen atmosphere at different heating rate. The activation energy for the thermal degradation was determined by way of the Flynn-Wall-Ozawa’s method and the Kissinger one. The measured activation energy of the silicone/clay composites indicated that the composites with exfoliated clay platelets was more thermally stable than that of the pristine silicone rubber. Acknowledgement - Authors are gratefully acknowledging the financial support by Agency for Defence Development. |
| 저자 | 김응수, 윤진산 |
| 소속 | 인하대 |
| 키워드 | silicone rubber; clay; thermogravimetric; activation energy |
| 원문파일 | 초록 보기 |
