| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Effect of hollow spheres on the damping properties of flexible polyurethane foam |
| 초록 |
Flexible polyurethane (PU) foams are frequently prepared from filled polyols in which polystyrene or styrene- acrylonitrile copolymer is dispersed in colloidal particles. The polymer particles of filled polyols enhance cell opening and make the polyurethane foams resilient. The viscoelastic behavior of polyurethane prepared from polyols filled with hollow sphere was investigated in comparison with polyurethane prepared from the filled copolymer polyols employing a dynamic mechanical analysis (DMA) over a frequency range 0.01-10 Hz. It was found that PU filled with hollow spheres of polystyrene show excellent damping efficiency. PU prepared from the filled copolymer polyol shows maximum tanδ with increasing the filled copolymer polyol content. Damping properties of PU investigated are discussed in terms of the storage modulus (E’) and loss modulus (E’’) change. |
| 저자 |
김유석, 이대수
|
| 소속 |
전북대 |
| 키워드 |
flexible polyurethane foam |
| E-Mail |
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