Linear and nonlinear microrheometry of small samples and interfaces using microfabricated probes [0.03%]
基于微加工探针的小样本和界面的线性和非线性微流变学研究
Zachary A Zell,Vincent Mansard,Jeremy Wright et al.
Zachary A Zell et al.
We describe a microrheological strategy that enables sensitive surface shear rheology measurements of surfactant-laden interfaces, with the capacity to simultaneously visualize deforming interfaces. This technique utilizes a ferromagnetic m...
Strain shifts under stress-controlled oscillatory shearing in theoretical, experimental, and structural perspectives: Application to probing zero-shear viscosity [0.03%]
理论、实验和结构视角下的应力控制振荡剪切中的应变偏移：应用于零剪切粘度的探测
Johnny Ching-Wei Lee,Yu-Tong Hong,Katie M Weigandt et al.
Johnny Ching-Wei Lee et al.
Rheological measurements in which the applied stress or strain is oscillated are widely used to interrogate viscoelastic properties due to the independent control over the time scale and length scale afforded by changes in amplitude and fre...
Rheology of crystallizing polymers: The role of spherulitic superstructures, gap height, and nucleation densities [0.03%]
结晶聚合物的流变性：球晶超结构、间隙高度和成核密度的作用
Debjani Roy,Debra J Audus,Kalman B Migler
Debjani Roy
A longstanding goal in polymer rheology is to develop a physical picture that relates the growth of mechanical moduli during polymer crystallization to that of a structure. Here, we utilize simultaneous mechanical rheology and optical micro...
Nonlinear rheometry of entangled polymeric rings and ring-linear blends [0.03%]
纠缠型聚合物环和环-线性共混物的非线性流变学研究
Daniele Parisi,Maria Kaliva,Salvatore Costanzo et al.
Daniele Parisi et al.
We present a comprehensive experimental rheological dataset for purified entangled ring polystyrenes and their blends with linear chains in nonlinear shear and elongation. In particular, data for shear stress growth coefficient, steady-stat...
Marat Andreev,David Nicholson,Anthony Kotula et al.
Marat Andreev et al.
Polymer crystallization occurs in many plastic manufacturing processes, from injection molding to film blowing. Linear low-density polyethylene (LLDPE) is one of the most commonly processed polymers, wherein the type and extent of short-cha...
Entrance effects and high shear rate rheology of shear banding wormlike micelle fluids in a microcapillary flow [0.03%]
剪切带状蠕虫液晶在微毛细管流动中入口效应及高剪切速率流变学研究
Paul F Salipante,Vishnu Dharmaraj,Steven D Hudson
Paul F Salipante
The viscosity of a shear-banding wormlike micelle solution at high shear rates is investigated using capillary rheology and particle streak velocimetry. Measurements of the flow profile and pressure gradient show an extended entrance region...
A frequency-dependent effective medium model for the rheology of crystallizing polymers [0.03%]
结晶聚合物流变学的频依赖有效介质模型
Anthony Kotula
Anthony Kotula
The rheology of crystallizing polymers is critical to polymer processing, but our current understanding of how crystallinity affects rheology during crystallization is lacking. The challenge is twofold: first, we must measure rheology simul...
Nonlinear viscoelastic characterization of human vocal fold tissues under large-amplitude oscillatory shear (LAOS) [0.03%]
大振幅振动剪切(LAOS)下的人体声带组织的非线性粘弹性特征研究
Roger W Chan
Roger W Chan
Viscoelastic shear properties of human vocal fold tissues were previously quantified by the shear moduli (G' and G″). Yet these small-strain linear measures were unable to describe any nonlinear tissue behavior. This study attempted to cha...
Evaluating models for polycaprolactone crystallization via simultaneous rheology and Raman spectroscopy [0.03%]
结合流变学和拉曼光谱同时探测建模聚己内酯结晶行为的研究
Anthony P Kotula,Kalman B Migler
Anthony P Kotula
The crystallization of a polymer melt is characterized by dramatic structural and mechanical changes that significantly impact the processing conditions used to generate industrially-relevant products. Relationships between crystallinity an...
Fractal approaches to characterize the structure of capillary suspensions using rheology and confocal microscopy [0.03%]
采用流变学和共聚焦显微镜表征颗粒凝胶网络结构的分形方法研究
Frank Bossler,Johannes Maurath,Katrin Dyhr et al.
Frank Bossler et al.
The rheological properties of a particle suspension can be substantially altered by adding a small amount of a secondary fluid that is immiscible with the bulk phase. The drastic change in the strength of these capillary suspensions arises ...