| 摘要 |
A method for preparing poly lactic acid-natural fibers composites is provided to produce the poly lactic acid-natural fibers composites having excellent mechanical physical properties such as impact strength, tensile strength and flexural modulus and showing extrusion moldability. A method for preparing poly lactic acid-natural fibers composites comprises the steps of: washing natural fibers with a detergent for 1-24 hours; drying the natural fibers at 30-100 deg.C for 6-72 hours; drying poly lactic acid and the natural fibers for 1-12 hours and then compounding the dried poly lactic and natural fibers in a weight ratio of 1:0.2-1.5 by using an extruder under 170-220 deg.C and a screw rotary speed of 30-500 rpm; and cutting the extruded strands into 5-30 mm for pelletization. |
