正交设计与回归分析对HDPE/LDHs制备参数的优化  

Orthogonal design and regressions application in HDPE/ LDHs composite materials preparation process

作　　者：于杰[1,2] 谢普[1,2] 秦军[2,3] 罗筑[1,2] 金翠霞[2,3,4] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014 [3]喀斯特环境与地质灾害防治教育部重点实验室(贵州大学),贵州贵阳550003 [4]贵州大学化学工程学院,贵州贵阳550003

出　　处：《计算机与应用化学》2009年第10期1249-1252,共4页Computers and Applied Chemistry

基　　金：国家科技支撑计划项目(2007BAB08B05);喀斯特环境与地质灾害防治教育部重点实验室开放基金课题(2008K-4)

摘　　要：利用正交设计和逐步2次回归分析的方法,研究了水滑石(LDHs)含量、螺杆转速和挤出次数对高密度聚乙烯(HDPE)/LDHs复合材料力学性能的影响。并用MATLAB对回归方程进行最优化处理,预测了复合材料在弯曲强度不低于25 MPa,缺口冲击强度不低于40 kJ/m^2条件下所得到的拉伸强度为29.558 3 MPa,并确定了此条件下的优化结果,即:LDHs含量为9.8%,螺杆转速为300 r/min,挤出次数为2次。此优化方案要好于常用的直观分析/方差分析的结果,更准确的反映实际情况,可更广泛的应用于优选试验中。Using Orthogonal design and stepwise multiple regressions analysis methods, the influences of Layered Double Hydroxides （LDHs） , screw speed and extrusion times on the mechanical properties of HDPE/LDHs composite materials under preparation process were studied. Optimized results, that the flexural strength was over 25 MPa, the notched impact strength was above 40 kJ/m^2 and the tensile strength was about 29. 558 3 MPa at LDHs content 9. 8% , screw speed 300 r/rain and extrusion two times, were obtained by search method compilered with MATLAB. Orthogonal design, combined with stepwise multiple regressions and Optimized process, could reflect practical situation more accurately and be applied to optimization test widely.

关 键 词：正交设计 逐步回归分析 最优化 水滑石 复合材料 

分 类 号：TQ015.9[化学工程] O6-39[理学—化学]