| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Effect of Plasticizer on Expansion and Mechanical Properties of Poly (lactic acid) Foam Composites |
| 초록 |
Thermally expandable microcapsule (TEPM) and plasticizer filled poly(lactic acid)(PLA) foam composites are prepared by melt mixing method . The triethyl citrate is used as plasticizer to improve the dispersion and expansion properties of the capsules and compensate for the brittleness of PLA. Although plasticizer reduced the overall mechanical properties of PLA foam composites, expansion property of capsules and impact strength of composites are considerably increased by plasticizing of PLA resin. Glass transition, melting temperature and crystallinity of plasticized PLA mixtures are decreased with increasing the content of triethyl citrate. Only 2.5 wt.% of triethyl citrate is rapidly improve the melt index(MI) and impact property. The density reduction of PLA foam composites are enhanced without a large reduction in the mechanical properties at 2.5 wt.% of triehtyl citrate. |
| 저자 |
윤호규1, 이상락2, 김동협1, 서흔영1
|
| 소속 |
1고려대, 2덕양산업 |
| 키워드 |
Poly (lactic acid); Polymer foams; thermally expandable microcapsule; Plasticizers; mechanical properties
|
| E-Mail |
|
