| 학회 | 한국화학공학회 |
| 학술대회 | 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 | 14권 2호, p.2414 |
| 발표분야 | 고분자 |
| 제목 | Preparation and Physical Properties ofBiodegradable Films using Various Starches |
| 초록 | Synthetic plastics, such as polystyrene, polypropylene and polyethylene, are used widely in daily life,in food industry, biomedical field and agriculture. A heavy environmental pollution accompanies their uses, because they need hundreds of years to degrade, and the disposal of waste plastics has become a seriousproblem. Therefore, in the past two decades, biodegradable materials have been paid attention asalternatives to the petroleum-derived plastics. In this study, films were prepared different starches, PVA and additives by using casting method.Glycerol(GL), sorbitol(SO), tartaric acid(TA), and citric acid(CA) were used as additives.Physical properties such as tensile strength(TS), elongation at break(%E), degree of swelling(DS) and solubility(S) with amylose contents of starches were investigated. Amylose content of starches was analyzed by the colourimetric method. The result of the measurements indicated that with increasingthe amylose contents of starches, TS and DS of films increased. However, %E and S of films decreased.Thermal analysis of films was measured by using differential scanning calorimeter (DSC). Also,biodegradability of the films was evaluated by soil burial test. |
| 저자 | 윤순도, 변헌수, 박미화, 윤연흠 |
| 소속 | 전남대 |
| 키워드 | Starches; Amylose contents; Physical properties; Biodegradability |
| 원문파일 | 초록 보기 |
