Conical Twin Screw Extruder Rheomex TW100

This laboratory size twin screw extruder enables the continuous compounding and blending of thermoplastics and rubbers. Used in combination with the Haake Rheocord 90 torque rheometer, it can also be used to determine the flow and processing conditions of materials. The extruder temperature is variable from ambient to 500°C and features interchangeable load cells for a variety of torque ranges.

Example

In developing technology to compatibilize commingled waste plastics, this extruder was used to compound our materials and to study flow and processing conditions. The obtained information, such as torque, extrusion temperatures and pressures, extrusion speed, etc., was used in the simulation of production processes.


Haake Internal Mixer

The Haake has an internal, intensive mixer which can be used for a wide range of applications. The torque required to mix materials is measured and recorded. These measurements enable the study of the viscosity changes of a polymer during loading, fusion, and melting. By changing the rotor and/or the rotor speed, the effect of shear rate on the sample viscosity can be evaluated from the torque curve. The Haake Rheocord is designed to provide a uniform thermal profile throughout the mixer with precise and uniform heating and cooling.

Example

In the study to compatibilize multiphase polymer blends, the Haake was used to prepare blend samples for compatibilization studies. The Rheomex TW100 twin screw extruder was used in combination with the Haake Rheocord 90 to test the flow and processing conditions of the materials during mixing.