| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Strain-induced enthalpy relaxation in PLLA/PDLA blends |
| 초록 |
Blends of poly(L-lactic acid)(PLLA) with poly(D-lactic acid)(PDLA) were prepared via solution blending. Blend films were obtained by compression molding at 190℃ with subsequent quenching in ice water. The films were stretched uniaxially at draw ratio of 2.5 at 10℃ above the glass transition temperature. All of the drawn films exhibited endothermic peaks just above the glass transition temperature. The endothermic heat varied depending on blend composition. Based on a thermodynamic model, the origins of strain-induced enthalpy relaxation in PLLA/PDLA blend were investigated. |
| 저자 |
김성혜, 이상철
|
| 소속 |
금오공과대 |
| 키워드 |
PLA; poly(lactic acid); strain-induced enthalpy relaxation
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| E-Mail |
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