Hencky strain shifting of convergent flow measured effective elongational viscosity

Collier JR.; Petrovan S.; Patil P.

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Hencky strain shifting of convergent flow measured effective elongational viscosity

机译：会聚流的Hencky应变位移测量有效伸长粘度

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The effective elongational viscosity data on a series of polyolefins as a function of the Hencky strain are shifted to a reference Hencky strain using an approach similar to that used for temperature shifting, shearing viscosity data. The basis of this shifting is the order that develops (i.e., the decrease in entropy that occurs) during forced flow through sernihyperbolically convergent dies. The entropy decrease is proportional to the orientational contribution to the effective elongational viscosity. The Hencky strain shift factors are obtained from the convergent flow effective elongational rheology and the complex and capillary shear rheology. The commercial grades of polyolefins studied include polypropylene, high density polyethylene, and metallocene and conventionally catalyzed low density polyethylene. The combination of the temperature shift factors given in our companion article and the Hencky strain shift factors in this article enable the creation of master curves for the effective elongational rheology. (C) 2002 Wiley Periodicals, Inc. [References: 8]

机译：使用类似于温度转换剪切剪切力数据的方法，将一系列聚烯烃的有效伸长粘度数据作为Hencky应变的函数，转换为参考Hencky应变。这种转移的基础是在强制性流过血清代谢紊乱的模具时形成的顺序（即，熵的降低）。熵的降低与定向伸长对有效伸长粘度的贡献成正比。 Hencky应变位移因子是从收敛流有效伸长流变学以及复杂和毛细管剪切流变学获得的。研究的商业级聚烯烃包括聚丙烯，高密度聚乙烯和茂金属以及常规催化的低密度聚乙烯。伴随文章中提供的温度偏移因子与本文中的Hencky应变偏移因子相结合，可以创建有效伸长流变学的主曲线。（C）2002 Wiley Periodicals，Inc. [参考：8]

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《Journal of Applied Polymer Science》 |2003年第9期|共8页
作者
Collier JR.; Petrovan S.; Patil P.;
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正文语种 eng
中图分类高分子化学（高聚物）;
关键词
Elongational viscosity; Semihyperbolic die; Shift factor; Master curve; Hencky strain shifting; Temperature and hencky strain shifting; Low density polyethylene; High density polyethylene; Polypropylene; Oxide monohydrate solutions; Rheology; Melts;

机译：伸长粘度;半双曲线模;位移因子;主曲线;弯曲应变位移;温度和弯曲应变位移;低密度聚乙烯;高密度聚乙烯;聚丙烯;一水合氧化物溶液;流变性;熔体;

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1. Hencky strain shifting of convergent flow measured effective elongational viscosity [J] . Collier JR., Petrovan S., Patil P. Journal of Applied Polymer Science . 2003,第9期

机译：会聚流的Hencky应变位移测量有效伸长粘度
2. Simulation of Planar Entrance Flow Using strain-Rate-Dependent shear and Elongational Viscosities [J] . Mahesh Gupta Journal of Reinforced Plastics and Composites . 2001,第4期

机译：使用应变率相关的剪切力和伸长粘度模拟平面入口流
3. Influence of elongation factor on distributions of effective strain and flow stress for pushing through a conical die process of round bars made from S355 steel [J] . Tomasz Mi?ek MATEC Web of Conferences . 2019,第2期

机译：伸长率对通过S355钢制成的圆棒的圆锥模压制过程中有效应变和流动应力分布的影响
4. COMPARISON OF THREE METHODS TO MEASURE THE ELONGATIONAL VISCOSITY OF POLYMER MELTS: ENTRY FLOW, FIBER SPINNING AND UNIAXIAL ELONGATION [C] . Alexandros D. Gotsis, Qinfei Ke Plastics Bridging the Millennia . 1999

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5. Parameter estimation for elongational viscosity of polymer melts. [D] . Sarkar, Debabrata. 2003

机译：聚合物熔体伸长粘度的参数估计。
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机译：非牛顿粘性振荡自由表面喷射，以及一种新的应变率相关粘度形式，用于经受低应变率的流动

Hencky strain shifting of convergent flow measured effective elongational viscosity

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