| 학회 |
한국고분자학회 |
| 학술대회 |
2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 |
29권 1호, p.164 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Electrostriction of Polyurethane/Layered Silicate Nanocomposites with Different Polyol Chain Length |
| 초록 |
Electrostriction is the phenomenon that material is strained due to both Maxwell stress effect and electrostriction effect developed by the applied voltage. Polyurethane elastomer (PUE) was known as electrostrictive material having relatively large displacement and rapid response time. PU/MMT (montmorillonite) nanocomposites showed superior elongation and storage modulus to pure PU in several studies. To investigate the actuation properties of PU/MMT nanocomposites, we prepared PU/MMT nanocomposites with different polyol chain length and clay contents. From X-ray diffraction (XRD) results of PU/MMT nanocomposites, it could be known that silicate layers were completely exfoliated in the polyurethane matrix. We also used compliant PU carbon black electrode for the measurement of displacement in the electric field. PU/MMT nanocomposites showed superior displacement to pure PU. And also PU with polyol of Mw 2000 had large displacement than PU with polyol of Mw 1000. |
| 저자 |
박경미, 최화정, 김범호, 박한수, 정영대, 정해도, 이장우, 조남주
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| 소속 |
부산대 |
| 키워드 |
PU; actuator; nanocomposite
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| E-Mail |
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