[1]钟磊,梁基照.高密度聚乙烯熔体拉伸流动特性分析[J].华侨大学学报(自然科学版),2010,31(2):149-152.[doi:10.11830/ISSN.1000-5013.2010.02.0149]
　ZHONG Lei,LIANG Ji-zhao.Analysis of Elongation Flow Properties of High Density Polyethylene Melt[J].Journal of Huaqiao University(Natural Science),2010,31(2):149-152.[doi:10.11830/ISSN.1000-5013.2010.02.0149]
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高密度聚乙烯熔体拉伸流动特性分析()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第31卷
期数:
2010年第2期
页码:
149-152
栏目:
出版日期:
2010-03-20

文章信息/Info

Title:
Analysis of Elongation Flow Properties of High Density Polyethylene Melt
文章编号:
1000-5013(2010)02-0149-04
作者:
钟磊; 梁基照
广州华南理工大学机械与汽车工程学院
Author(s):
ZHONG Lei;  LIANG Ji-zhao
School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China
关键词:
聚乙烯熔体;  拉伸流动;  PTT模型;  生成率;  温度
Keywords:
polyethylene melt;  elongation flow;  Phan-Thien-Tanner model;  formation rate;  temperature
分类号:
TQ325.12
DOI:
10.11830/ISSN.1000-5013.2010.02.0149
文献标志码:
A
摘要:
基于PTT(Phan-Thien-Tanner)模型,将温度引入结点破坏率H函数中,构建新的聚合物流体本构方程.应用该方程,分析温度对聚乙烯熔体拉伸流动中拉伸应力和拉伸粘度的影响.结果显示,随着温度的升高,熔体的拉伸应力和拉伸粘度都随之下降.
Abstract:
Temperature as a parameter was considered in H function with respect to the node destroying rate and a new constitutive equation for the polymer fluid was proposed based on Phan-Thien-Tanner(PTT) model.The effects of temperature on stress and viscosity during elongation flow of high density polyethylene melt were analyzed by use of the equation.The results showed that both the stress and extensional viscosity decreased with a rise of temperatures.

参考文献/References:

[1] LIANG Ji-zhao. Estimation of vortical region length of rubber compound during entry flow [J]. Plastics Rubber and Composites Processing and Applications, 1996, (10):495-498.
[2] LIANG Ji-zhao. Determination of the entry region length of viscoelastic fluid flow in a channel [J]. Chemical Engineering Science, 1998, (17):3185-3187.doi:10.1016/S0009-2509(98)00155-9.
[3] LIANG Ji-zhao. Planar entry converging flow during extrusion of polymer melts [J]. Polymer-Plastics Technology and Engineering, 2007(5):475-480.doi:10.1080/03602550701297087.
[4] TANNER R I, NASSERI S. Simple constitutive models for linear and branched polymers [J]. Journal of Non-Newtonian Fluid Mechanics, 2003(1):1-17.
[5] SIMHAMBHATLA M, LEONOV A I. On the rheological modeling of viscoelastic polymer liquids with stable constitutive-equations [J]. Rheologica Acta, 1995(3):259-273.
[6] KWON Y, LEONOV A I. Stability constraints in the formulation of viscoelastic constitutive equations [J]. Journal of Non-Newtonian Fluid Mechanics, 1995(1):25-46.
[7] ZATLOUKAL M. Differential viscoelastic constitutive equations for polymer melts in steady shear and elongational flows [J]. Journal of Non-Newtonian Fluid Mechanics, 2003, (2/3):209-222.
[8] MCLEISH T C B, LARSON R G. Molecular constitutive equations for a class of branched polymers:The Pom-Pom model [J]. Journal of Rheology, 1998(1):81-110.doi:10.1122/1.550933.
[9] VERBEETEN W M H, PETERS G W M, BAAIJENS F P T. Differential constitutive equations for polymer melts:Extended Pom-Pom model [J]. Journal of Rheology, 2001(4):823-843.doi:10.1122/1.1380426.
[10] MEERVEL J V D. Note on thermodynamic consistency of the integral Pom-Pom model [J]. Journal of Non-Newtonian Fluid Mechanics, 2002, (1/3):291-299.
[11] LAUN H M, SCHUCH H. Transient elongational viscosities and drawability of polymer melts [J]. Journal of Rheology, 1989(1):119-175.

备注/Memo

备注/Memo:
广西青年自然科学基金资助项目(0542018)
更新日期/Last Update: 2014-03-23