Temperature Control - Electrical Systems (-130 ºC to +400 ºC)
The temperature control units with electrical heating are mainly used for high temperature measurements on polymer melts, hotmelt and curing materials such as resins or epoxy. The systems feature high heating and cooling rates as well as an excellent temperature accuracy and stability, and can be used in parallel plate and concentric cylinder setups. Both the plate and the hood are electrically heated, allowing virtually gradient-free measurements. The sample area can be flushed with inert gas to prevent degradation.
Cone-plate and parallel plate systems
- Fast and accurate temperature control from room temperature to +400 ºC
- Extended temperature range to -130 ºC with liquid nitrogen
- Controlled evaporator for minimum nitrogen consumption
- Virtually gradient-free sample temperature control due to the electrically heated hood
- Disposable systems and measuring plates with different surfaces available
- Measurement under inert gas conditions possible
- Inset plates with various diameters for adaptation to the upper measuring system diameter
- Melt rheology, curing and DMTA measurements >>
Concentric cylinder systems
- Fast and accurate temperature control from room temperature up to +300 ºC
- For concentric cylinder and double-gap systems
- Can be equipped with disposable cups
- Pressure cells >> available for measurements in a closed environment or under increased pressure
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Application specific documents
Select your industry and application to see the list of relevant documents.
Common documents
Adhesives, Hotmelts, Sealants and Plastisols - Thermal behavior of a hotmelt adhesive
The rheological behavior of an adhesive (PSA = Pressure Sensitive Adhesive) has to be detected using a single measuring system on a large temperature scale. This range should go from low temperatures, when the polymer has a solid-state, rigid consistency, up to high temperatures, when the polymer ...
The rheological behavior of an adhesive (PSA = Pressure Sensitive Adhesive) has to be detected using a single measuring system on a large temperature scale. This range should go from low temperatures, when the polymer has a solid-state, rigid consistency, up to high temperatures, when the polymer ...
Calculation of the relaxation time(s) and the relaxation time spectrum H() of a polypropylene melt
The relaxation time spectrum H() is the rheological equivalent of the molar mass distribution MMD. It is a mathematical model based on the theory that a “rheologically simple” viscoelastic liquid whithout branching, cross linkage or gel character can easily be simulated by a combination of ...
The relaxation time spectrum H() is the rheological equivalent of the molar mass distribution MMD. It is a mathematical model based on the theory that a “rheologically simple” viscoelastic liquid whithout branching, cross linkage or gel character can easily be simulated by a combination of ...
Calculation of the weight average molar mass Mw based on the zero-shear viscosity measurement using a frequency sweep
This application note describes how to calculate the molar mass Mw based on the Zero-Shear Viscosity value measured in a Frequency Sweep. The Zero-Shear Viscosity can be evaluated by applying the Carreau-Yasuda Regression to a Frequency Sweep. With the example of two Polypropylene melts it is ...
This application note describes how to calculate the molar mass Mw based on the Zero-Shear Viscosity value measured in a Frequency Sweep. The Zero-Shear Viscosity can be evaluated by applying the Carreau-Yasuda Regression to a Frequency Sweep. With the example of two Polypropylene melts it is ...
Comparison of linear and branched Polyphenylsulfone PPSU in film and granular form
A linear and a branched polymer were characterized with respect to its mechanical properties and structure. The measuring procedure can be applied in a fast and easy way. Polyphenylsulfone or Polyphenylsulphone (PPSF or PPSU) is a type of moldable plastic often used in rapid prototyping and rapid ...
A linear and a branched polymer were characterized with respect to its mechanical properties and structure. The measuring procedure can be applied in a fast and easy way. Polyphenylsulfone or Polyphenylsulphone (PPSF or PPSU) is a type of moldable plastic often used in rapid prototyping and rapid ...
Comparison of Polyethylene PE Melts Using Frequency Sweeps
A method is introduced for a characterization of polymer properties with respect to their molecular structure and processing behavior during thermoplastic processes such as Blown / Cast Extrusion, Extrusion Blow Molding or Injection Molding. The procedure can be applied in a fast and easy way. In ...
A method is introduced for a characterization of polymer properties with respect to their molecular structure and processing behavior during thermoplastic processes such as Blown / Cast Extrusion, Extrusion Blow Molding or Injection Molding. The procedure can be applied in a fast and easy way. In ...
Comparison of Polypropylene PP Melts Using Frequency Sweeps
A method is explained to characterize polymer properties with respect to their structure and processing behavior during thermoplastic processes such as Film Extrusion, Extrusion Blow Molding, Injection Molding. The procedure can be applied in a fast and easy way ...
A method is explained to characterize polymer properties with respect to their structure and processing behavior during thermoplastic processes such as Film Extrusion, Extrusion Blow Molding, Injection Molding. The procedure can be applied in a fast and easy way ...
Curing Process of Epoxy Molding Compounds
Epoxy Molding Compounds EMC are used in microelectronics industry for encapsulation purposes for a variety of semiconductor devices, for example in electronic packaging to protect the delicate wire bonds and other interconnects around an IC chip. Voids as well as fracture toughness of the bonds ...
Epoxy Molding Compounds EMC are used in microelectronics industry for encapsulation purposes for a variety of semiconductor devices, for example in electronic packaging to protect the delicate wire bonds and other interconnects around an IC chip. Voids as well as fracture toughness of the bonds ...
Flow and viscosity curves of polymer solutions
The flow behavior and the shear viscosity of a glue solution have to be examined at ambient temperature within a large shear rate range ...
The flow behavior and the shear viscosity of a glue solution have to be examined at ambient temperature within a large shear rate range ...
Getting the zero shear viscosity of polymer melts with different rheological tests
The zero shear viscosity of a polymer melt was determined with different rheological tests like flow and viscosity curve, creep, frequency sweep and stress relaxation. All tests were performed with the same rheometer which was equipped with an electronically commutated synchronous motor allowing ...
The zero shear viscosity of a polymer melt was determined with different rheological tests like flow and viscosity curve, creep, frequency sweep and stress relaxation. All tests were performed with the same rheometer which was equipped with an electronically commutated synchronous motor allowing ...
How to calculate the relaxation modulus G(t)
Several rheological functions like storage modulus G', loss modulus G'' or damping factor tan(delta) can be measured. An oscillation test describes the elastic and viscous behavior of any material but the results do not show time dependence. The user only gets information about frequency dependence ...
Several rheological functions like storage modulus G', loss modulus G'' or damping factor tan(delta) can be measured. An oscillation test describes the elastic and viscous behavior of any material but the results do not show time dependence. The user only gets information about frequency dependence ...
Practically relevant rheological analysis of polymers using a modern rheometer
Rheological investigations are very useful for developing technical polymers. Simple rheological measurements can be used in the quality control checks of raw materials and final products. Molecular structure and therefore the behavior of polymers during processing can be determined within a few ...
Rheological investigations are very useful for developing technical polymers. Simple rheological measurements can be used in the quality control checks of raw materials and final products. Molecular structure and therefore the behavior of polymers during processing can be determined within a few ...
Processing behaviour of Polystyrene PS: Time Temperature Superposition - Master Curve
A method is explained to characterize polymer properties with respect to their structure and processing behavior during thermoplastic processes such as Injection Molding, Extrusion, Foam Extrusion, Sheet Extrusion and Thermoforming. Using the rheological standard test methods flow curve or frequency ...
A method is explained to characterize polymer properties with respect to their structure and processing behavior during thermoplastic processes such as Injection Molding, Extrusion, Foam Extrusion, Sheet Extrusion and Thermoforming. Using the rheological standard test methods flow curve or frequency ...
Relaxation test permitting to calculate the complex viscosity function resp. zero shear viscosity
The oscillation test serves to characterize a substance regarding its viscous and elastic behavior. In addition to that it allows to measure the zero shear viscosity especially of polymer melts. A material's zero shear viscosity is determined at very low frequencies. In the range of zero viscosity ...
The oscillation test serves to characterize a substance regarding its viscous and elastic behavior. In addition to that it allows to measure the zero shear viscosity especially of polymer melts. A material's zero shear viscosity is determined at very low frequencies. In the range of zero viscosity ...
The Rheology of Hotmelt Adhesives
One of the best ways to study the rheological behavior of hot melts is through dynamic oscillatory measurements. This technique involves oscillating, or twisting, the material at different frequencies and amplitudes and studying the resultant behavior. Use of this technique enables the user to ...
One of the best ways to study the rheological behavior of hot melts is through dynamic oscillatory measurements. This technique involves oscillating, or twisting, the material at different frequencies and amplitudes and studying the resultant behavior. Use of this technique enables the user to ...
Literature - The Rheology Handbook
Second Edition ...
Second Edition ...
