섬유

biodegradable film derived from chitosan and homogenized cellulose

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 308
a novel composite film derived from chitosan and fine cellulosic fiber has been developed. its general characteristics are discussed. the composite film obtained by cast drying is hydrophilic but insoluble in water. it has a high oxygen-gas barrier capacity the strength of the composite film changes with chitosan content, and the maximum tensile strength (more than 1000 kg/cm**2) has been attained at 10-20 w/w chitosan on cellulose. the composite film is assumed to have chemical bonds between chitosan and the cellulosic material. the flexibility of the composite film can be improved by the addition of glycerol as a plasticizer. the composite film is degraded to fine fragments by cellulase and a ubiquitous chitosan-degrading bacterium isolated from soils in japan. the period of its biodegradation can be controlled by the conditions during film formation, such as temperature and the functional groups of cellulose. (author abstract) 16 refs
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