Equipment Prof. Wilhelm
Equipment list sorted by areas
Polymer Processing: Extrusion & Injection Molding
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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.

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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.

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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.

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

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

Contact person: Röpert, Marie

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.