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 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 melt viscosity 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:

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

available capillaries:

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