| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Natural rosin-modified starch as a reinforcing and antimicrobial agents in polylactic acid films for food packaging applications |
| 초록 |
The use of biopolymers is of great importance nowadays in many applications. polylactic acid (PLA) is the most commonly used due to its eco-frendly and availability. In order to take advantage of the sustainability and environmental friendliness of a bio-based PLA, starch was modified by rosin and used as a reinforcement filler within a PLA matrix. The FT-IR spectra of rosin-modified starch (RS) displayed a clear peak, which confirmed the successful esterification of starch by rosin. The RS showed a uniform dispersion in PLA matrix than starch and the loading of RS had a significant effect on the mechanical properties of the resulting film. A percolation network was formed when the RS loading was 8%, where the film displayed optimum mechanical properties. The antimicrobial test showed that the PLA/RS blended film exhibited excellent antimicrobial performance at 1-2 log scale against E. coli and S. epidermidis, which could be attributed to antimicrobial effect of rosin. |
| 저자 |
문강민1, 오준균1, 박규환2, 조완2, 김종혁2, 조슬기1
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| 소속 |
1단국대, 2HDC현대EP |
| 키워드 |
Biodegradable; PLA; Rosin; Starch; Antimicrobial
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| E-Mail |
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