Equipment Polymer Analytics Prof. Wilhelm


Equipment list divided into different areas (short device descriptions in English) (here link to the complete list of all devices)
Polymer Processing: Extrusion & Injection Molding
Bild Nico Dingenouts
Labstation from Brabender combined with additonal mixing kneader

Polymer Extrusion (Laboratory Scale)
Labstation, Brabender
Contact Person: Ingo Naue


Brabender extruder (Single screw, properties: D=19mm, L=250mm, Tmax=400°C)
used for examination of melt instabilities during extrusion.

Bild Nico Dingenouts
Mini-Extruder Haake Minilab with corotating double screws

Polymer Extrusion (Model Samples)
Haake Minilab, Thermo Scientific
Contact Person: Zimmermann Daniel

Haake Minilab: Mini Extruder for sample amount as small as 5 g. Equipped with double screws for better mixing, used for model compound or composite materials out of self synthesized materials due to the limited batch size in laboratory.

Nico Dingenouts
Injection Molding combined with Mini extrusion

Haake MiniJet Pro, Thermo Scientific
Contact Person: Zimmermann, Daniel

Haake Minijet Pro: injection molding machine for lab scale, starting from sample amounts as low as 2 ml. In combination with the Haake MiniLab, an extruder in lab scale (see left side of picture), we can produce also composites or blends.
we have a large number of sample geometries at our disposal: Bones for tensile testing in different sizes, round discs for shear rheology and rectangular plates for DMTA measurements.

Bild Nico Dingenouts
Foaming Batch reactor (up to 690 bar and 200 °C)

Polymer Foaming
Custum build SFT-High Pressure Reactor from Supercritical Fluid Technologies

Contact person:

High pressure 100 ml stainless steel vessel with supercritical fluid pump and temperature control unit for batch foaming experiments operating with scCO2 up to 10,000 psi (690 bar) and a max. temperature of 200 °C. Nucleation can be induced either in a one-step foaming process by sudden depressurization or in a two-step foaming process by rapidly heating the saturated sample outside of the reactor in a hot oil bath.
The equipment is needed for our research on comb polymers, here we want to study the influence of polymer topology on the resulting foam properties.