키토산의 분자량에 따른 PVA/Chitosan 블랜드필름의 제조와 토양분해 실험

• 영문명: Pot Test and Preparation of PVA/Chitosan Blending Film Accoding to Molecular Weight of Chitosan
• 발행기관: 한국환경보건학회
• 저자명: 이기창 황성규 김종완 정덕채 김판기
• 간행물 정보: 『1. 한국환경보건학회지』제24권 제3호, 48~53쪽, 전체 6쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1998.09.30

영문 초록

Chitin is known as biodegradable natural polymer. But, in spite of various application of chitin from waste marine sources, commercial use of chitin has been limited due to highly resistance to chemicals and the absense of proper solvents. We made various viscosity of chitosan from chitin by change of Mima s method through the deacetylation which is various condition of NaOH concentration, reaction time and temperature. Also, Polyvinyl alcohol/chitosan blend films were prepared by different solution blends containing the ratio of 5, 10, 15 and 20% chitosan and low, medium, high molecular weight of chitosan to find a more useful biodegradable polymer. Thermal and mechanical properties of PVA/chitosan blend films such as DSC, impact strength, tensile strength and morphological changes by SEM were determined. The 10-15% PVA/chitosan(low, medium) blend films were similar to PVA. Also, PVA/chitosan blend films at the laboratory soil test(Pot Test) were completely degraded in month with four kinds of soils by microorganisms.

키워드

Biodegradable polymer Blending Film Chitosan polyvinyl alcohol Pot Test