| 摘要 |
PURPOSE: A placard using an environment-friendly biodegradable sheet is provided to reduce manufacturing costs by directly printing advertising photograph and phrases on a biodegradable sheet. CONSTITUTION: A placard using an environment-friendly biodegradable sheet is prepared by the steps of: blending 30~60 weight% of PLA material, 20~40 weight% of at least one aliphatic biodegradable material selected from PBS, PBAT, PBSA, and PCL, and 20~30 weight% of biodegradable nano complex material; extruding the blended material at 170~200 °C to obtain pellets; extruding the pellets through T die or blow molding method to obtain an environment-friendly biodegradable sheet; and cutting the sheet in a predetermined width and length and printing advertising photograph and phrases at least one side.
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