Abstract
The hybrid composites of aliphatic polyester-silica were prepared via a sol-gel reaction and their potential application using as a buffer coating layer in the thermoelectric device were investigated. When aliphatic polyesters were thermally treated at a high temperature of 240 °C, the polymer showed an increases in thermal degradation temperature by 30-90 °C according to the thermal treatment time. The polyester-silica composites showed an increases in thermal degradation temperature by 30-50 °C according to the content of the added silica. Polyester-silica composite showed neither discoloration nor change in optical properties because Knoevenagel condensation reaction was hindered by silica structure. The thermal conductivity of the composites increased linearly according to the content of added silica.
Original language | English |
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Pages (from-to) | 424-429 |
Number of pages | 6 |
Journal | Polymer (Korea) |
Volume | 34 |
Issue number | 5 |
DOIs | |
State | Published - Sep 2010 |
Keywords
- Aliphatic polyester
- Hybrid composite
- Silica
- Sol-gel reaction
- Thermoelectric device