| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Self-crosslinked epoxidized natural rubber(ENR)/poly(ethylene-co-acrylic acid)(EAA) /poly(ε-caprolactone)(PCL) with triple-shape memory effects |
| 초록 |
Shape memory polymer(SMP) is a smart material which can recover to its original shape after being deformed into a temporary shape when it receives stimuli. Polymer blending is an effective way to develop a new SMP with desired performance properties. In this study, SMP based on epoxidized natural rubber(ENR)/poly(ethylene-co-acrylic acid)(EAA)/poly(ε-caprolactone)(PCL) ternary blends was prepared via a melt blending, and a subsequent compression molding at 180oC. DMA and gel content analysis showed that blends form a crosslinked network via a reaction between epoxy group of ENR and carboxylic groups of both EAA and PCL during the compression molding. DMA and DSC results revealed that there are two sudden drops in the storage modulus at well-separated temperatures corresponding to the crystalline melting transition of EAA and PCL in the crosslinked network. These blends exhibit triple shape memory behavior with two different temporary fixing shapes and step-wise shape recovery. |
| 저자 |
김재철, 장영욱
|
| 소속 |
한양대 |
| 키워드 |
Self-crosslinking; ternary blend; triple shape memory effects
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| E-Mail |
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