【摘要】 选取机械球磨时间、机械球磨温度、模压时间三个变量进行Box-Benhnken实验,运用响应面法对聚乳酸(PLA)/木薯厌氧渣复合材料的制备工艺参数进行优化,得到各响应值与实验因素之间的数学关系模型,以及各因素对响应值的交互影响,确定PLA/木薯厌氧渣复合材料的拉伸强度及弯曲强度达最优值时,其工艺条件为:模压时间为5.99 min,机械球磨温度为59.01℃,机械球磨时间为33.42 min。在该工艺条件下制得的复合材料,其拉伸强度为44.125 6 MPa,弯曲强度为66.83 MPa。更多还原

【Abstract】 Box-Benhnken experiment was carried out by using mechanical milling time,mechanical milling temperature and molding time. The preparation parameters of polylactic acid(PLA)/cassava residues composites were optimized by response surface method. The relationship between the response and experimental factors was obtained. The mathematical model and the interactive effect of each factor on the response value were used to determine the optimum tensile strength and flexural strength of PLA/cassava residues composites. The technological conditions were as follows :molding time is 5.99 min,mechanical milling temperature is 59.01 ℃ and the mechanical milling time is 33.42 min. The tensile strength of the composites is 44.125 6 MPa and the flexural strength is 66.83 MPa.更多还原