【摘要】 目的采用转矩流变仪制备一系列麦秸秆/聚乳酸(PLA)复合材料,研究秸秆粉的质量分数对麦秸秆/聚乳酸(PLA)复合材料表面自由能、力学性能、吸水性能的影响。方法通过表面接触角、力学性能、吸水效率测试等方法对材料进行表征。结果随着秸秆粉质量分数的增加,复合材料的表面自由能降低,材料的力学性能降低,吸水效率增大。结论秸秆粉与PLA的界面结合随秸秆粉质量分数的增加而变弱。更多还原

【Abstract】 Objective: To prepared the wheat straw/polylactic acid composites by torque rheometer with wheat straw powder and polylactic acid( PLA) and investigate the effect of wheat straw powder mass fraction on properties of composites. Methods: The surface free energy,mechanical property and water absorption efficiency were studied. Results: The surface free energy and mechanical property of composites both decreased,while water absorption efficiency increased with increasing of wheat straw powder mass fraction. Conclusion: With more mass fraction of wheat straw,the interfacial adhesion between wheat straw powder and PLA becomes worse.更多还原