Thermoset processing
Creating cross-linked polymers
Due to their reactive processing, thermoset materials require specialized manufacturing technology. This begins with the mixing of the initial formulation and extends to the cross-linking or shaping and post-treatment. We have a wide range of modern equipment at our disposal to handle a variety of thermoset moulding compounds and materials safely and efficiently. These include epoxy resins, polyurethanes, polyesters, acrylates, and many more. The focus is particularly on the production of fibre composites with thermoset matrix systems.
Contact: M. Sc. Michael Hoffmann
Phone: +49 921 55 7472
Mail: Michael.Hoffmann@uni-bayreuth.de
The Zehntner ZAA 2300 made by Proceq is an universal thin film applicator. The bed is heated, and so higher viscosity system can be handled.
Films can be made up to the length of 400 mm and 300 mm width.
Analog display
Length of the film: up to 400 mm
Width of the film: up to 300 mm
Temperature of the heated bed: 150 °C
Drawing speed: ZAA2300 1 mm/s – 90 mm/s
Location: University of Bayreuth
Contact: Michael Hoffmann, M. Sc.
Phone: +49 921 55 74 72
| Conveyor belt width | 30 cm |
| Conveyor belt length | 105 cm |
| Maximum exposure width | LED Spot (405 and 365 nm) à 21 cm
Powerline 405 nm à 25 cm |
| Maximum intensity | LED Spot (405 and 365 nm) à 3.000 mW/cm2
Powerline 405 nm à 16.000 mW/cm2 |
| Velocity | 0,1 – 2,0 m/min |
| Existing specimen moulds | DMA, Tensile, 3-Point-Bending, Fracture Toughness KIC |
Location: University of Bayreuth
Rotation speed: 0-12.000 U/min
Power: 0,75 kW
Speed: 0-12.000 U/min
Location: University of Bayreuth
Working Width [cm] max. 30
Belt Speed [m/min] bis zu 10
2 Calenders [°C] of which one can be temperedup to 250
B-Staging-Temperature [°C] 250 (2 separated Heating Plates)
Fibres / semi-finished Fibres
– Up to 32 rovings; in-line spreading unit available
– Textile semi-finished products (woven fabrics, scrims, fibre mats) up to 30 cm wide
Matrix Materials
Duromers, solvent-free resin systems in the 10 to 50,000 mPas viscosity range
Impregnation Technologies
Foulard (immersion bath), comma blade, indirect roller application
Location: Neue Materialien Bayreuth GmbH
Working Width [cm] 45
Minimum Gap Width [µm] 5 (Gap-controlled), < 5 (Force-controlled)
Throughput per Hour [L] 0.5 to 60
Process Temperature [°C] RT to 60
Additional Equipment
Heating Unit
Processable Materials
Modified and filled resin systems, elastomers;
Solvent-based systems can be processed
Location: Neue Materialien Bayreuth GmbH
Injection Pressure [bar] 20
Post pressure [bar] 70
Resin-/Hardener Tank Temp. [°C] 150
Mixing Ratio Resin / Hardener 100/3 to 100/100
Features
Electric Agitator / Vacuum Pump
Location: Neue Materialien Bayreuth GmbH
Speed [rpm] 510 – 3500 (stufenlos)
Mixing Time [sek] 5 – 300
Container Sizes [ml] 185, 60, 25, 12
Location: University of Bayreuth
Speed [rpm] 30 – 9000
Batch Size [L]1,5
Power [W] 550
Processable Materials
Suitable for ultra-fast agitation and dispersion of highly filled reactive resin and paint systems
Location: University of Bayreuth
Plate Heating [°C] max. 200
Pressure Range [bar] 0-20
Volume of Pressure Vessel [L] 15
Features
– Heating Plate 650 x 600 x 100 mm
– Aluminium Worktop, Thickness: 15 mm
– High Pressure Hose heatable up to 150 °C
Location: University of Bayreuth
Platte Size [mm2] 300 x 300
Max. Pressure Force [kN] 200
Max. Platte Temperature [°C] 300
Heating Rate [K/min] up to 15
Cooling Rate [K/min] > 30
Special Features
Test press equipped with a load cell for precise control of the press force
Location: Neue Materialien Bayreuth GmbH
Pressure Surface [mm] 600 x 600
Pressure Force [kN]1000
Cylinder Stroke [mm] 450
Working Temperature [C°] 25 – 250
Max. heating-/hooling Rates [C°/min] 7
Temperature Controll Medium
Thermo Oil
Location: Neue Materialien Bayreuth GmbH
Max. Frequency in Echo Mode [MHz] 16 in Water
Max. Frequency in Through-Sound Mode [kHz] 120 in Air
Max. Amplification [dB] 90
Min. Defect Size [mm] 5 (in Air) / 0.25 (in Water)
Testing Options
A-, B- und C-Scan, 3D-Scan
Software for quantitative evaluation of areas of delamination
Location: University of Bayreuth
Features
Recording of material temperature during cross-linking
Oil bath for temperature control
Temperature recording
Determination of relative viscosity
Location: University of Bayreuth
Features
Recording of material temperature during cross-linking
Oil bath for temperature control
Temperature recording
Determination of relative viscosity
Location: University of Bayreuth
Volume [cm3] 75 x 100 x 75
Usable Volume [m3] 0,562
Maximum Temperature [°C] 250
Location: University of Bayreuth
Inner Volume [L] 49
Temperature [C°] 20-200
Vacuum [mbar] 1-1013
Location: University of Bayreuth
Test Chamber Volume [L] 100
Temperature [C°] -70 bis 180
Heating- / cooling Rate [°C/s] 3
Humidity Control
10 % to 98 % relative humidity in a 10 to 95°C temperature range
Location: University of Bayreuth