A capillary rheometer equipped with a pressure chamber is used to measure the pressure-dependent viscosity of polymethylmethacrylate (PMMA), poly-a-methylstyrene-co-acrylonitrile (PaMSAN), and low-density polyethylene (LDPE). Data analysis schemes are discussed to obtain pressure coefficients at constant shear rate and at constant shear stress. It is shown that the constant shear stress pressure coefficients have the advantage of being shear stress independent for the three polymers. The constant shear rate pressure coefficients, on the other hand, turn out to depend on shear rate, which makes them less suitable for use, e.g., in process simulations. In addition to the commonly used superposition method, a direct calculation method for the ...
Despite the importance of the effect of pressure on the flow properties of a polymeric material, it ...
A challenge for polymer rheology is the reliable determination of shear dependent first normal stres...
Rheometers are instruments for measuring rheological properties of liquids and (soft) solids. Typica...
A capillary rheometer equipped with a pressure chamber is used to measure the pressure-dependent vis...
A capillary rheometer equipped with a pressure chamber is used to measure the pressure-dependent vis...
Viscosity is a prominent rheological property of polymer, which is affected by temperature, pressure...
The effect of pressure and temperature on the shear and elongational deformation rate-dependent visc...
A triple pressure-stage capillary rheometer was individually developed for providing an insight of p...
A modified capillary rheometer was used to measure strain rate-temperature-pressure dependencies of ...
Evaluation and comparison of routes to obtain pressure coefficients from high-pressure capillary rhe...
A novel high-pressure sliding plate rheometer has been developed to investigate the effect of pressu...
The effect of pressure on rheological behavior of polymer melts is surely a significant phenomenon f...
The effect of pressure on the viscosity of polyethylenes was studied using a newly developed high-pr...
Evaluation of pressure dependence of viscosity for some polymers using capillary rheomete
International audienceThe aim of this study is to develop an experimental method which provides rele...
Despite the importance of the effect of pressure on the flow properties of a polymeric material, it ...
A challenge for polymer rheology is the reliable determination of shear dependent first normal stres...
Rheometers are instruments for measuring rheological properties of liquids and (soft) solids. Typica...
A capillary rheometer equipped with a pressure chamber is used to measure the pressure-dependent vis...
A capillary rheometer equipped with a pressure chamber is used to measure the pressure-dependent vis...
Viscosity is a prominent rheological property of polymer, which is affected by temperature, pressure...
The effect of pressure and temperature on the shear and elongational deformation rate-dependent visc...
A triple pressure-stage capillary rheometer was individually developed for providing an insight of p...
A modified capillary rheometer was used to measure strain rate-temperature-pressure dependencies of ...
Evaluation and comparison of routes to obtain pressure coefficients from high-pressure capillary rhe...
A novel high-pressure sliding plate rheometer has been developed to investigate the effect of pressu...
The effect of pressure on rheological behavior of polymer melts is surely a significant phenomenon f...
The effect of pressure on the viscosity of polyethylenes was studied using a newly developed high-pr...
Evaluation of pressure dependence of viscosity for some polymers using capillary rheomete
International audienceThe aim of this study is to develop an experimental method which provides rele...
Despite the importance of the effect of pressure on the flow properties of a polymeric material, it ...
A challenge for polymer rheology is the reliable determination of shear dependent first normal stres...
Rheometers are instruments for measuring rheological properties of liquids and (soft) solids. Typica...