Brabender:
Rheometric Capilary Die
- Designed to attach to ANY C.W. Brabender single-screw or conical twin-screw extruder
- Continuously extruding material through the die to collect pressure and mass throughput data
- Works with WINEXT Windows based extrusion software when using our Plasti-Corder Torque Rheometer, or by manual calculation
The rheometric capillary extrusion is a simple test procedure when using WINEXT software. Material is fed into a laboratory extruder operating at a constant speed and temperature. The material experiences the work energy and melting process of a typical extrusion operation. Then, the following occurs:
In the round capillary die, material enters the round capillary insert located in the die. A pressure transducer and melt thermocouple monitor and record the pressure drop and temperature of the material before exiting the die. Mass throughput is determined by weighing extrudate over a timed interval. Subsequent measurements are made by varying the extrusion speed to obtain outputs at each pressure value. Substituting capillary inserts of varying L/D ratios meets the requirement for completing the test when using this die.
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Documents
Compatible instruments
Conical Twin Screw Extruder CTSE
Extruder / Extrusiograph 19/25 and 19/32
Extruder 19/10 DW
Extruder/Extrusiograph 30/25 and 30/32
Measuring Extruder and Grooved Extruder 19/20
Single-Screw Extruder 19/25
Stand-Alone Extruder KE 19
Stand-Alone Extruder KE 30
TwinLab
