Modeling of nonlinear extensional and shear rheology of low‐viscosity polymer melts

2021 ◽  
Author(s):  
Leslie Poh ◽  
Benke Li ◽  
Wei Yu ◽  
Esmaeil Narimissa ◽  
Manfred H. Wagner
Keyword(s):  
Polymer Melts ◽  
Shear Rheology ◽  
Low Viscosity ◽  
Viscosity Polymer

Horizontal extensional rheometry (HER) for low viscosity polymer melts

2020 ◽  
Vol 64 (1) ◽  
pp. 177-190
Author(s):  
Benke Li ◽  
Wei Yu ◽  
Xiao Cao ◽  
Quan Chen
Keyword(s):  
Polymer Melts ◽  
Low Viscosity ◽  
Extensional Rheometry ◽  
Viscosity Polymer

scholarly journals Self-powered multifunctional sensing based on super-elastic fibers by soluble-core thermal drawing

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mengxiao Chen ◽  
Zhe Wang ◽  
Qichong Zhang ◽  
Zhixun Wang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Polymer Fibers ◽  
Elastic Fibers ◽  
Triboelectric Nanogenerator ◽  
Large Area ◽  
Manufacturing Method ◽  
Low Viscosity ◽  
Ion Movements ◽  
Self Powered ◽  
Thermal Drawing ◽  
Viscosity Polymer

AbstractThe well-developed preform-to-fiber thermal drawing technique owns the benefit to maintain the cross-section architecture and obtain an individual micro-scale strand of fiber with the extended length up to thousand meters. In this work, we propose and demonstrate a two-step soluble-core fabrication method by combining such an inherently scalable manufacturing method with simple post-draw processing to explore the low viscosity polymer fibers and the potential of soft fiber electronics. As a result, an ultra-stretchable conductive fiber is achieved, which maintains excellent conductivity even under 1900% strain or 1.5 kg load/impact freefalling from 0.8-m height. Moreover, by combining with triboelectric nanogenerator technique, this fiber acts as a self-powered self-adapting multi-dimensional sensor attached on sports gears to monitor sports performance while bearing sudden impacts. Next, owing to its remarkable waterproof and easy packaging properties, this fiber detector can sense different ion movements in various solutions, revealing the promising applications for large-area undersea detection.

Three-Dimensional Finite Element Analysis of Polymer Coextrusion through Cylindrical Channel

2011 ◽  
Vol 291-294 ◽  
pp. 542-546
Author(s):  
Min Zhang ◽  
Chuan Zhen Huang ◽  
Sheng Sun ◽  
Yu Xi Jia ◽  
Tian Jiang Liang
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Outer Region ◽  
Polymer Melt ◽  
High Viscosity ◽  
Element Analysis ◽  
Low Viscosity ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Viscosity Polymer

The eccentricity coextrusion flow of polymer melt was analyzed based on finite element simulations. Such simulated results as the fields of flow velocity, pressure and shear stress were obtained. Through the analysis of the results, the mechanism of the column interface forming in the axis-symmetry coextrusion flow path was obtained. For the coextrusion flow, if the low viscosity polymer flows near the die wall, the flow would be steady. Whereas, if the polymer with low viscosity is in the core and the high viscosity polymer at the outer region, Which is disadvantage in terms of energy, and the instability flow would occur. This is also accord with the least energy consume theory.

Optimization of clamping force for low-viscosity polymer injection molding

2020 ◽  
Vol 90 ◽  
pp. 106700 ◽  
Author(s):  
Jian-Yu Chen ◽  
Kai-Jie Yang ◽  
Ming-Shyan Huang
Keyword(s):  
Injection Molding ◽  
Clamping Force ◽  
Polymer Injection ◽  
Low Viscosity ◽  
Polymer Injection Molding ◽  
Viscosity Polymer

Finding a universal low-viscosity polymer for DNA separation

1998 ◽  
Vol 19 (10) ◽  
pp. 1691-1698 ◽  
Author(s):  
Christoph Heller
Keyword(s):  
Dna Separation ◽  
Low Viscosity ◽  
Viscosity Polymer

Fabrication of optical elements using a rapid UV-curable and low-viscosity polymer material

2013 ◽  
Author(s):  
Man Zhang ◽  
Zhiwei Li ◽  
Xiaochun Dong ◽  
Lifang Shi ◽  
Qiling Deng ◽  
...  
Keyword(s):  
Polymer Material ◽  
Optical Elements ◽  
Uv Curable ◽  
Low Viscosity ◽  
Viscosity Polymer

scholarly journals Design and operation of a Rayleigh Ohnesorge jetting extensional rheometer (ROJER) to study extensional properties of low viscosity polymer solutions

2017 ◽  
Vol 61 (3) ◽  
pp. 467-476 ◽  
Author(s):  
E. Greiciunas ◽  
J. Wong ◽  
I. Gorbatenko ◽  
J. Hall ◽  
M. C. T. Wilson ◽  
...  
Keyword(s):  
Polymer Solutions ◽  
Low Viscosity ◽  
Viscosity Polymer
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