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Small Scale Polymer Processing

KeyLab coordinators:

Prof. Dr. Volker Altstädt
Phone: +49 (0)921 / 55-7470
E-mail: altstaedt@uni-bayreuth.de
Homepage: http://polymer-engineering.de/en/

Prof. Dr. Hans-Werner Schmidt
Phone: +49 (0)921 / 55-3200
E-mail: hans-werner.schmidt@uni-bayreuth.de
Homepage: Chair of Macromolecular Chemistry I

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KeyLab scientist:

Dr. Reiner Giesa
Phone: +49 (0)921 / 55-4420
E-mail: reiner.giesa@uni-bayreuth.de


ThermoFisher Scientific, Process 11

Co-rotating parallel twin screw extruder. Screw diameter: 11 mm, L/D = 40, 10 to 1000 rpm, mass throughput 20 g/h to 2,5 kg/h, minimum mass: 50 g, variable screw design by exchangeable conveying elements, high temperature version up to 450°C, Auxiliaries: Three volumetric, one gravimetric feeders, liquid dosing unit, granulator.



Xplore Instr. BV, Micro-Compounder

Batch-mixer with two co-rotating conical screws, max. 250 rpm, inert gas atmosphere. Mixing volume: up to 15 ml, with recirculation channel. Force monitoring up to 9000 N, high temperature model: 400°C, water cooling.



Xplore Instr. BV, Micro injection moulder

Miniature injection molding machine using a pneumatic driven plunger.  Max. injection volume: 12 ml, barrel temp. up to 400°C, mold temp. max. 150°C (water cooled). Injection pressure up to 16 bar. Several mold geometries available, e. g. disks, dog bones, rods, squares.



DrCollin, Teach-Line Extrusion line E 20T with chill roll film device CR 72T

Single screw extruder, 20 mm screw, L/D=20, throughput: 50 to 3000 g/h, coat hanger die 10 cm, water cooled chill roll film line.



SWO Polymertechnik, RheoMeltflixer

Prototype apparatus for measuring MFI/MVR according to DIN or ASTM and working as simple capillary rheometer. Temp. max. 400°C, up to 500 bar, ca. 10 ml volume, several die geometries: rod, fiber, film, tube.



Carver Inc., Heißpresse

Four column model, max. 25 tons pressure, up to 500 °C, heating and cooling rates programmer (Eurotherm 2416), films, laminates, and small objects via compression molding.



Fusion UV Systems, F300S UV irradiator with LCE 6 Conveyor belt

Microwave excited UV source (H- and D-spectrum), UV length: 15 cm, power: 150 W/cm, continuous mode.



Retsch, High Speed Rotor Mill ZM 200

6000-18000 min-1, for soft to medium-hard and fibrous materials, trapezoid holes from 1 mm to 0,1 mm, cyclone for the continuous milling for larger amounts.



Instron GmbH, Universal testing machine type 5565

for tensile, compression and peel tests, several other testing setups, geometries, and clamps available, load cells in the range of 10 to 5000 N, video extensiometer, and heating chamber.



Rheometrics Scientific, DMTA Mark IV

dynamic mechanical thermoanalysis, for solid samples such as fibers, films, and rods. max. force: 10 N, temperature range: -150 to 350 °C, testing geometries: tensile, compression, single-, dual cantilever, 3P-bending.

The KeyLab Small Scale Polymer Processing is specialized in the processing of small quantities (gram-scale) of polymers into fibers, films, and three-dimensional objects. Specific expertise of the KeyLab is micro injection molding and the preparation of polymer samples in a small-scale processes.

The preparation of polymer blends, (highly) filled polymers, the incorporation of nanomaterials and other components via batch and continuous mixers is also in the scope of the KeyLab Small Scale Polymer Processing.

The KeyLab also offers efficient material characterization with respect to the mechanical, fracture mechanical, thermal and electronic properties of miniature test specimen under different sample conditions. Test specimen featuring different sample geometries can be realized.


KeyLab coordinators:

Prof. Dr. Volker Altstädt, Prof. Dr. Hans-Werner Schmidt

KeyLab scientist:

Dr. Reiner Giesa


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