| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Multi step sol-gel process and its effect on morphology and performance characteristics of flouroleastomer/silica nanocomposites |
| 초록 |
Nanocomposites based on flouroelastomer and silica were prepared by hydrolysis of tetraethoxy silane(TEOS). Dispersion and morphology of nano silica has been studied by XRD, SEM and AFM. A continuous improvement in performance characteristics like tensile strength, modulus and hardness with increasing filler concentration has been observed. Dynamic mechanical analysis has been carried out to study the feasibility of these composites in vibration isolation and sealing applications. Activation energy needed for the thermal degradation of filled samples was higher than unfilled system. It indicated the improved thermal stability of the filled samples. The ageing resistance of the micro-filled samples was evaluated from the mechanical properties of aged samples. The mechanical properties such as tensile strength, modulus at 300% elongation, and strain at break were computed. As compared to unfilled samples, reinforced systems exhibited higher ageing resistance. |
| 저자 |
스리다1, 정지운2, 김진국3
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| 소속 |
1Gyeongsang National Univ., 2School of Nano and Advanced Materials Engineering, 3Elastoemer Lab |
| 키워드 |
sol-gel silica; nanocomposites; flouroelastomers; dispersion; Thermal stability
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| E-Mail |
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