Rheometrical die heads
Your advantages
- Practice-oriented plastification under processing conditions
- Continuous operation
- Multifunctionality: processing and measuring
- Uniform plastification, gels, surface gloss
- Color dispersion and color check
- Transparency and formation of streaks
- Swelling and contraction behavior
- Segregation of individual recipe components of a compound
- Output per unit of time
Practice-oriented plastification under processing conditions
All slot capillary dies are highly polished and have a coating against corrosion and abrasion.
A precise description of the flow processes within polymer processing machines implies exact knowledge of the rheological characteristics of polymer melts, in particular of their viscosity behaviour within a wide, practice-oriented range of shear rates.
The Brabender capillary rheometer system, consisting of a laboratory extruder with a suitable drive unit, a rheometric capillary die head, and a high-precision melt pump covers a practice-oriented range of shear rates and allows reliable statements about the material behaviour during different processing stages. The advantages compared to conventional high-pressure capillary rheometers are evident:
The program of measuring die heads is completed by several special measuring die heads:
- 2- and 3-stage slot capillary die heads
for the determination of shear and elongational viscosity to assess the flow behavior of the melt - Garvey die head (ASTM D 2230)
special measuring die for testing elastomers - Swelltest die head
