| 摘要 |
PROBLEM TO BE SOLVED: To obtain the above material having excellent strength and degredable property by microorganisms, easy for forming and processing, not producing a harmful substance even after degradation thereof, and useful as a packing material, etc., by mixing a fine cellulose fiber with a protein and a plasticizer and hot press forming. SOLUTION: This biodegradable composite material is obtained by mixing (A) a fine cellulose fiber with (B) a protein and (C) a plasticizer, and performing a hot press forming preferably at 50-250 deg.C and under 10-200kgf/m<2> pressure. Further, e.g. as the components (A), (B) and (C), a cellulose, etc., having <=3000μm length and <=50μm diameter, a casein, and glycerin, etc., are used respectively. Based on 100 pts.wt. component (A), it is preferable to blend in the ratio of 20-100 pts.wt. component (B) and 20-100 pts.wt. component (C). |
