Home Analyses & equipment Capillary rheometer Göttfert | Find information about a Polymer Melt

Capillary rheometer Göttfert

With the Göttfert 2002 capillary rheometer it becomes possible to gather rheological knowledge about a polymer melt. Capillary rheometry is a technique whereby a sample undergoes extrusion through a die of defined dimensions. The shear pressure drop across the die is monitored at set volumetric flow rates and temperature. The induced shear can be high and is comparable to production situations (extrusion for example). The shear is in the range of…. Depending on the die dimensions and the temperature. Many of our dies are are specifically designed to mimic yarn extrusion. When only small amount of sample is available we recommend the use of the Göttfert. When more material is available (5 kg) we can measure the meltviscosity on the Haake Polylab line which is a laboratory scale single screw extruder.

Our Göttfert is equipped with a custom-build inline dryer. We know the importance of a good resin handling and work with moisture free (PET) resin on our rheometer.

Available pressure transducers:

 

Available pressure transducers:

Lower limit (Bar) Upper limit (Bar)
0 50
0 100
0 200
200 500
500 2000

 available capillairies:

Length (µm)

Diameter (µm)

L/D

 

Length (µm)

Diameter (µm)

L/D

0

1000

-

 

900

300

3.0

150

100

1.5

 

1000

1000

1.0

300

200

1.5

 

1200

400

3.0

300

300

1.0

 

3000

300

10.0

400

400

1.0

 

4200

300

14.0

450

300

1.5

 

5000

500

10.0

600

300

2.0

 

10000

500

20.0

600

400

1.5

 

10000

1000

10.0

750

500

1.5

 

20000

2000

10.0

800

400

2.0

 

30000

1000

30.0

 

 

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