PhysChem Analytics GmbH is your competent partner for rheological questions. Rheological measurements are important methods for the analysis of material parameters, which play a decisive role in processing and quality control.

We cooperate with selected universities and research institutes in the field of rheology in order to always have the latest developments, methods and insights.

Examples of possible rheological samples:

Polymers (solid, molten, in solution)
Emulsions (cosmetic emulsions, foams, polymer emulsions)
Dispersions (Slurrys)
Newtonian liquids (organic solvents, aqueous solutions)
Melting, adhesives, hot melt adhesives
Reactive resins (epoxy, phenol / formaldehyde, PU resins)

Equipment:

Various rheometers with air bearing drive
Tribology Cell (Peltier heated -30 °C to 200 °C)
Peltier heated and electrically heated DMTA chamber (RT – 450 °C, -30 – 200 °C)
Plate-plate measuring systems in different sizes (25 mm to 50 mm) and variations (smooth, sandblasted, with TrugapTM splitter recognition, …)
Cone-plate measuring systems in different sizes (25 mm to 60 mm) and variations (Titankegel smooth, sandblasted, with TrugapTM splitter detection, …)
Several Peltier heated hoods (temperature range -30 °C to 200 °C)
Electrically heated hood (temperature range RT – 400 °C)
Measuring system for UV curing of resins
Own constructions according to company-specific specifications

Here are some selected examples:

Flow curves (rotational measurements) of 0.01 – 40,000 s-1/10 – 200 °C
Viscosity and shear behavior of polymer melts
Viscosity of Newtonian liquids

Measurement of the viscoelasticity (G’, G”, tan (δ)), pasty materials and melts (oscillation measurements, 10 – 450 °C)
Viscosity and viscoelasticity of dispersions, emulsions and “tough” materials

Torsional measurements on solid materials (e.g., GRP test specimens) for determining the mechanical strength 0.01 – 600 s-1; 10-400 °C

Test of flexural strength on round specimens (0 to 50 N)

Reactivity measurements on thermally curable (temperature ramp) or
UV-sensitive resins (with UV exposure).
Determination of the curing behavior of epoxy or phenol / formaldehyde resins

Stability measurements on emulsions (eg rocking tests also possible in combination with climate control).

Tribological measurements (sliding friction, static friction)

Determination of kinematic and dynamic viscosity