Rheological test

Exploring the flow properties of polymers

Our equipment consisting of rotational and high-pressure capillary rheometers measures rheological properties as a function of temperature, time, and deformation rate. In doing so, viscoelastic properties are investigated in the ranges of small as well as large shear and strain rates. We draw on our experience with a wide variety of polymer materials such as homopolymers, polymer blends, nanocomposites, block copolymers, and compounds.

Contact: M.Sc. Justus Kuhnigk
Phone: +49 921 55 7440
E-mail: justus.kuhnigk@uni-bayreuth.de

The MCR 702 with MultiDrive technology and two independent air-bearing motors enables the following measuring modes:

  • DMA in tension, bending, and compression with lower, air-bearing linear motor
  • DMA in torsion with upper, air-bearing rotary motor
  • Shear rheology with upper air-bearing rotary motor
  • A combination of linear drive and rotation motor in one test

Linear actuator for DMA in tension, bending, and compression

Force [N] 0.0005 – 40

Path amplitude oscillation [µm] +/- 0.01 – 4500

Temperature range [°C] -130 – 600 (convection oven)

Heating rate [K/min] 35

Cooling rate [K/min] 30

Rotary operation for DMA in torsion and rheology

Maximum angular frequency ω [rad/s] 628

Angular velocity [rad/s] 10-9 – 314

Maximum torque [mNm] 230

Min. torque rotation [nNm] 1

Min. torque oscillation [nNm] 0.5

Torque resolution [nNm] 0.1

Normal force range [N] 0.005 – 50

Normal force resolution [mN] 0.5

Temperature range [°C] -130 – 450 (convection oven)

Features
Plate-plate (PP25), solid-state fixture (SRF5), cantilever (CTL35), compression (PP25), three-point bending (TPB10/TPB20/TPB40)1

Software
RheoCompass

Location: University of Bayreuth

Contact: Dipl.-Chem.-Ing. Ute Kuhn

Phone: +49 921 55 7475

E-mail: ute.kuhn@uni-bayreuth.de

Maximum angular frequency ω [rad/s] 628

Shear rate [1/s] 0.01 – 100

Maximum torque [nNm] 150.0

Torque resolution [nNm] 0.01

Normal force range [N] 0.05 – 50

Temperature range [°C] 25 – 200

Features
Pressure cell: 400 bar / 200°C

Software
RheoCompass

Location: University of Bayreuth

Contact: Dipl.-Chem.-Ing. Ute Kuhn

Phone: +49 921 55 7475

E-mail: ute.kuhn@uni-bayreuth.de

Rotationsrheometer | Anton Paar MCR 302 Twin-Drive | Polymer Engineering Bayreuth

Maximum angular frequency ω [rad/s] 628

Shear rate [1/s] 0.01 – 100

Maximum torque [nNm] 150.0

Torque resolution [nNm] 0.01

Normal force range [N] 0.05 – 50

Temperature range [°C] 25 – 200

Features
Pressure cell: 400 bar / 200°C

Software
RheoPlus, RheoCompass

Property of Neue Materialien Bayreuth GmbH

Location: University of Bayreuth

Contact: Dipl.-Chem.-Ing. Ute Kuhn

Phone: +49 921 55 7475

E-mail: ute.kuhn@uni-bayreuth.de

Rotationsrheometer | Anton Paar MCR 302 Twin-Drive | Polymer Engineering Bayreuth

Maximum angular frequency ω [rad/s] 500

Shear rate [1/s] 0.001 – 100

Torque [nNm] 0.2 – 200.0

Maximum force [N] 150

Angle range [mrad] 0.05 – 500

Temperature range [°C] -150 – 600

Number of units 2

Features
Plate – Plate, Cone – Plate, Extensional Viscosity Fixture (EVF), Disposable Plates

Software
RSI Orchestrator, TA Orchestrator

Location: University of Bayreuth

Contact: Dipl.-Chem.-Ing. Ute Kuhn

Phone: +49 921 55 7475

E-mail: ute.kuhn@uni-bayreuth.de

Rotationsrheometer | TA ARES | Polymer Engineering Bayreuth

Measuring field [mm] 32

Location: University of Bayreuth

Contact: Dr.-Ing. Du Ngoc Uy Lan

Phone: +49 921 55 7450

E-mail: du.uy-lan@uni-bayreuth.de

Detailed description to come.

Location: University of Bayreuth

Contact: Dr.-Ing. Du Ngoc Uy Lan

Phone: +49 921 55 7450

E-mail: du.uy-lan@uni-bayreuth.de

WEITERE AUSSTATTUNG UND TECHNIKA

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