Determination of IV with Capillary Rheometer

The method of measuring the melt viscosity with the capillary rheometer is simple and avoids the environmentally hazardous solvents.

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Bagley Correction

The Bagley correction is needed to calculate the inlet pressure drop when round hole capillaries...

 

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Weißenberg-Rabinowitsch Correction

Due to shear thinning of polymer melts with pseudoplastic flow behaviour a strong flection of the...

 

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PVT isobaric

This procedure is standardized in ISO 17744 for piston operated instruments. Isobaric PVT measurements are performed at constant pressure...

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PVT isothermal

In isothermal PVT measurement, the measurement process starts at room temperature after the material is filled at melt temperature and...

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Thermo Stability

Plastics have the property of aging through thermal or mechanical stress...

 

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Melt Elasticity/Strength

The melt strength (elasticity) is determined by withdrawing an extruded strand of capillary rheometer...

 

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Counterpressure chamber

The counter pressure chamber, which offered by GÖTTFERT as an optional Add-on ...

 

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Flow Instabilities (Shark-Skin)

The Shark-Skin effect occurs during the extrusion of plastics, elastomers or food and manifests...

 

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Thermal Conductivity

The measurement of the thermal conductivity is carried out by means of a probe...

 

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Extensional viscosity (Cogswell Modell)

The extensional viscosity can be calculated with measured data of a capillary rheometer...

 

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Die Swell Measurement

The Die Swell measurement is one of many available add-ons for the series of GOETTFERT capillary rheometers...

 

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