NEW FILMS PRODUCED BY MICROFIBRILLATED NATURAL FIBERS

Research Project

Project/Area Number	08456087
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	一般
Research Field	林産学
Research Institution	Niigata University
Principal Investigator	TANIGUCHI Takashi Niigata University, Education Professor, 教育学部, 教授 (20126428)
Co-Investigator(Kenkyū-buntansha)	OKAMURA Keizo Kyoto Bunka College Professor, 教授 (50026506)
Project Period (FY)	1996 – 1997
Project Status	Completed (Fiscal Year 1997)
Budget Amount *help	¥8,600,000 (Direct Cost: ¥8,600,000) Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000) Fiscal Year 1996: ¥7,200,000 (Direct Cost: ¥7,200,000)
Keywords	Microfibrillation / Microfibrillated fibers / Natural fibers / Biodegradable film / Film formation / 超微細繊維化
Research Abstract	A formation of film without using organic solvent has been attempted using microfibrils of natural fibers. It was tried to obtained the films from the water-suspension of microfibrils, which are made from wood pulp ezo spruce and popular bleached kraft pulp), tunicin, chitosan, silk and collagen mechanically by using super grinding method. The obtained films were individually about some mum-some 10 mum thick being homogeneous, strong and translucent, The mechanical properties of films were evaluated by tensile test. Their tensile breaking strength is higher than those of commercial printed-grade paper B.Blending of dofferent microfibrils is possible using water-suspension of them, and new hybrid-composites of natural fibers are produced by this method. Furthermore, these films are all biodegradable and harmless to environment without using an organic solvent.