| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Crystallization Kinetics and Morphology of Poly(lactic acid) using Reactive End-Groups Aliphatic Amides as Nucleating Agent |
| 초록 |
The crystallization rate of poly(lactic acid) (PLA) is facilitated by adding a nucleating agent during melt-blending using a twin-screws extruder. The aliphatic amide (N,N'-(propylene)bis(10-undecenamide)) with vinyl end groups was synthesized to be used as a reactive nucleating agent (rNA). A twin-screws extruder was used to melt-blend PLA with rNA in the presence of peroxide. DSC and POM were used to evaluate the crystallization behavior and spherulite morphology of PLA/rNA at various cold crystallization temperatures. The results suggest that adding rNA and peroxide to neat PLA provides for a faster crystallization rate and shorter crystallization time. Furthermore, the spherulite size morphology of PLA/rNA suggests that nucleation density is significantly incresed, whereas sherulite size was decreased as compared with those of neat PLA. |
| 저자 |
Phornwalan Nanthananon1, 권용구2
|
| 소속 |
1Inha Univ., 2인하대 |
| 키워드 |
PLA; crystallization; nucleating agent; spherulite morphology
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| E-Mail |
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