摘要
本文用聚合物材料工程中表示熔体粘度的双因素数学模型,lgη=A_0+A_1lgγ+A_(11)(lgγ)~2+A^2T+A_(22)T^2+A_(12)Tlgγ根据实验数据来拟合高密度聚乙烯的熔体粘度。对此模型采用了线性化方法,然后以多元逐步回归求出回归系数,并用非拟合点的实验数据与模型的模拟值进行了比较,结果表明此模型对于高密度聚乙烯是适宜的。整个计算过程是采用我们为紫金-Ⅱ徽型计算机编制的BASIC语言的毛细管流变仪数据处理系统进行的,可打印出计算结果及流变性质关系图。
Two factor viscosity model in polymer processingwas used to regress melt shear viscosity of high density polyethylene by experimental data. Linearization was used for the model, Than the coefficients was calculated by the step linear regression using measure data in capillary rheometer. The simulation data was also compared with the data that did not use in regression. The result indicated that the model for high density polyethylene was suitable. All calculation here appled a data processing system for capillary rheometer in VENUS-Ⅱ computer which was programed in CP/M GBASIC language. The result could be printed in data or graph form.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1989年第4期42-46,共5页
Polymer Materials Science & Engineering
