Rheological behavior of fibre-filled polymer melts at low shear rate. Part II. Experimental investigation

AbstractRheology and the component interactions which affect rheology were studied for a tape casting composition similar to commercial systems. Viscosity measurements at different shear rates were compared to measured tape properties to determine if high or low shear rate rheological behavior controls tape characteristics. Relative viscosity was measured to assess the contribution of each component to the stability of the dispersion.

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Rheological behavior of highly filled polymer melts

Polymer Engineering & Science ◽

10.1002/pen.760230408 ◽

1983 ◽

Vol 23 (4) ◽

pp. 206-210 ◽

Cited By ~ 53

Author(s):

D. M. Bigg

Keyword(s):

Rheological Behavior ◽

Polymer Melts ◽

Filled Polymer

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Processability of Rubber and Rheological Behavior

Rubber Chemistry and Technology ◽

10.5254/1.3535123 ◽

1977 ◽

Vol 50 (1) ◽

pp. 163-185 ◽

Cited By ~ 53

Author(s):

J. L. White

Keyword(s):

Rheological Behavior ◽

Polymer Melts ◽

Experimental Studies ◽

Viscoelastic Fluids ◽

Complex Behavior ◽

Filled Polymer ◽

Ultimate Properties ◽

Yield Values

Abstract The rheological and ultimate properties of unvulcanized rubber and compounds are described. Unfilled elastomers may be represented by the theory of viscoelastic fluids. Various experimental studies are described and interpreted. Filled polymer melts exhibit more complex behavior including yield values, reduced elastic memory, and thixotropy. The influence of these properties on several processing operations including milling/mixing and extrusion is critically discussed.

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Epitaxial Crystallization of Poly(ε-caprolactone) on Reduced Graphene Oxide at a Low Shear Rate by In Situ SAXS/WAXD Methods

ACS Omega ◽

10.1021/acsomega.0c03410 ◽

2020 ◽

Vol 5 (49) ◽

pp. 31535-31542

Author(s):

Weijun Miao ◽

Feng Wu ◽

Shiman Zhou ◽

Guibin Yao ◽

Yiguo Li ◽

...

Keyword(s):

Graphene Oxide ◽

Shear Rate ◽

Reduced Graphene Oxide ◽

Epitaxial Crystallization ◽

Reduced Graphene ◽

Low Shear

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A Continuous Lubricated Squeezing Flow Technique to Study the Rheological Behavior of Polymer Melts in Equibiaxial Elongational Flow

10.1063/1.2964510 ◽

2008 ◽

Author(s):

David Venerus ◽

Teresita Guadarrama-Medina ◽

Tai-Yi Shiu ◽

Albert Co ◽

Gary L. Leal ◽

...

Keyword(s):

Rheological Behavior ◽

Polymer Melts ◽

Elongational Flow ◽

Squeezing Flow ◽

Lubricated Squeezing Flow

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Modeling of Shear Rheological Behavior of Uncured Rubber Melt

Applied Rheology ◽

10.1515/arh-2020-0111 ◽

2020 ◽

Vol 30 (1) ◽

pp. 130-137

Author(s):

Hengxiao Yang ◽

Qimian Mo ◽

Hengyu Lu ◽

Shixun Zhang ◽

Wei Cao ◽

...

Keyword(s):

Shear Rate ◽

Constitutive Model ◽

Incompressible Fluid ◽

Rheological Behavior ◽

Rheological Characteristics ◽

One Dimensional ◽

Ptt Model ◽

Rate Region ◽

Proposed Model ◽

Rheological Experiments

AbstractTo describe uncured rubber melt flow, a modified Phan–Thien–Tanner (PTT) model was proposed to characterize the rheological behavior and a viscoelastic one-dimensional flow theory was established in terms of incompressible fluid. The corresponding numerical method was constructed to determine the solution. Rotational rheological experiments were conducted to validate the proposed model. The influence of the parameters in the constitutive model was investigated by comparing the calculated and experimental viscosity to determine the most suitable parameters. The uncured rubber viscosity was 3–4 orders larger than that of plastic and did not have a visible Newtonian region. Compared with the Cross-Williams-Landel-Ferry (Cross-WLF) and original PTT models, the modified PTT model can describe the rheological characteristics in the entire shear-rate region if the parameters are set correctly.

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Investigation on the Rheological Behavior of Polyamide6/Montmorillonite Nanocomposites by Reactive Extrusion

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.1998 ◽

2011 ◽

Vol 233-235 ◽

pp. 1998-2001 ◽

Cited By ~ 1

Author(s):

Ming Zhao ◽

Xiao Zhong Lu ◽

Kai Gu ◽

Xiao Min Sun ◽

Chang Qing Ji

Keyword(s):

Activation Energy ◽

Shear Stress ◽

Shear Rate ◽

Rheological Behavior ◽

Reactive Extrusion ◽

Shear Thinning ◽

Experimental Results ◽

Montmorillonite Nanocomposites

The rheological behavior of PA6/montmorillonite(MMT) by reactive extrusion was investigated using cone-and-plate rheometer. The experimental results indicated that PA6/MMT exhibited shear-thinning behavior. The shear stress of both neat PA6 and PA6/MMT increased with the increase in the shear rate. The reduction of the viscous activation energy with the increase of shear stress reflected PA6/MMT can be processed over a wider temperature.

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