Fibre composite technology

Processing fibres and polymers into composites

Fibre composites have unique properties. Their excellent mechanical characteristics combined with low weight make them the material of choice for many lightweight applications. However, their processing requires appropriate technologies and experience to produce high-quality and innovative materials.

 

Contact: M.Sc. Martin Demleitner
Phone: +49 921 55 7476
E-mail: martin.demleitner@uni-bayreuth.de

Working width [cm] max. 30

Web speed [m/min] up to 10

2 calenders [°C] temperature-controllable from 1 to 250

B staging temperature [°C] 250 (2 separately temperature-controlled 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
duromer, solvent-free resin systems in the viscosity range from 10 to 50,000 mPas

Impregnation technology
Foulard (immersion bath), comma blade, indirect roller application

 

Location: Neue Materialien Bayreuth GmbH

Contact: M. Sc. Martin Demleitner

Phone: +49 921 55 74 76

E-mail: martin.demleitner@uni-bayreuth.de

Prepreg Imprägnieranlage | Polymer Engineering Bayreuth

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]
Room temperature up to 60

Fittings
Heating unit

Processable materials
Modified and filled resin systems, elastomers;
Solvent-based systems can be processed

Location: Neue Materialien Bayreuth GmbH

Contact: M. Sc. Martin Demleitner

Phone: +49 921 55 74 76

E-mail: martin.demleitner@uni-bayreuth.de

Injection pressure

  • 0%
  • 20

    Post pressure

  • 0%
  • 70

    Resin/hardener tank temp. [°C] 150

    Mixing ratio resin/hardener 100/3 to 100/100

    Features
    Electric agitator / vacuum pump

    Location: University of Bayreuth

    Contact: Christian Bauer

    Phone: +49 921 55 74 80

    E-mail: christian.bauer1@uni-bayreuth.de

    2K-Injektionsanlage | Isojet | Polymer Engineering Bayreuth

    Pressure range

  • 0%
  • 1500

    Location: University of Bayreuth

    Contact: M. Sc. Martin Demleitner

    Phone: +49 921 55 74 76

    E-mail: martin.demleitner@uni-bayreuth.de

    Hochdruckdispergator | GEA NIRO SOAVI PANDA 2K | Polymer Engineering Bayreuth

    Speed [rpm] 510 – 3500 (stepless)

    Mixing time[sec] 5 – 300

    Container sizes [ml] 185, 60, 25, 12

    Location: University of Bayreuth

    Contact: M.Sc. Fabian Hübner

    Phone: +49 921 55 75 12

    E-mail: fabian.huebner@uni-bayreuth.de

    Speed [rpm] 30 – 9000

    Batch size [l] 1.5

    Motor power [W] 550

    Processable materials
    Suitable for ultra-fast agitation and dispersion of highly filled reactive resin and paint systems

    Location: University of Bayreuth

    Contact: M.Sc. Fabian Hübner

    Phone: +49 921 55 75 12

    E-mail: fabian.huebner@uni-bayreuth.de

    Hochdruckdispergator | GEA NIRO SOAVI PANDA 2K | Polymer Engineering Bayreuth

    Plate heating [°C] max. 200

    Pressure range

  • 0%
  • 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

    Contact: Christian Bauer

    Phone: +49 921 55 74 80

    E-mail: christian.bauer1@uni-bayreuth.de

    The process is unique as it allows direct lamination in one step. The system consists of a single-screw extruder and a special laminating unit. This allows copper foils to be laminated directly onto a substrate material. The extruded semi-finished product can be further processed in the electrical industry. Furthermore, it is possible to impregnate glass and carbon fibre mats directly using the system.

    Screw diameter laboratory kneader [mm] 30
    L/D 20
    Speed max. [1/min] 180
    Torque max. [Nm] 94
    Material throughput [kg/h] 4 – 25
    Processing temperatures [°C] up to 450
    Heating system electric
    Cooling Air
    Fittings Calender with haul-off unit
    Location NMB Modul 1 – Bayreuth
    ContactPhone Markus Schirmer+49 921 / 55 7480 od.7550
    Markus Schirmer | Polymer Engineering Bayreuth

    The laboratory-scale flatbed laminating press is a double belt press with integrated contact heating and cooling. The materials to be laminated are gently heated in the process. The length of the heating zone results in a relatively long dwell time in the laminating press, which leads to optimal bonding with high adhesion values. Immediately after the heating zone, the laminated material can be pressed with the calender rollers, or calibrated to a desired final thickness. To stabilise this bond, the laminated material is cooled down while still inside the laminating machine. Due to the flat throughput and the precise height adjustment, even solid sheets up to a material thickness of 15 mm can be laminated.

    Laminator RPS-L 600

    Working width [mm| max. 580

    Throughput speed [m/min| 0.5 – 7

    Pressure laminating roller [N/cm²| 0 – 40

    Press roller gumming [Shore A| approx. 70

    Level adjustment [mm| – 3 to + 5

    Height adjustment [mm| 0 – 25

    Heaters, 2 each for

    top and bottom heating [control zones] 4

    Continuous operating temperature

    of the machine (heating) [°C] max. 200

    Short-term operating temperature

    of the machine (heating) [°C] max. 230

    Processing temperatures [°C] up to 400

    Cooling top and bottom, water

     

    Location: University of Bayreuth

    Contact: Markus Schirmer

    Phone: +49(0)921 55 74 80

    E-mail: markus.schirmer@uni-bayreuth.de

    Kaschieranlage | Polymer Engineering Bayreuth

    Plate size [mm2] 300 x 300

    Max. press force [kN] 200

    Max. sheet temperature [°C] 300

    Heating rate [K/min] up to 15

    Cooling rate [K/min] > 30

    Special feature
    Test press equipped with a load cell for precise control of press force

    Location: Neue Materialien Bayreuth GmbH

    Contact: M. Sc. Martin Demleitner

    Phone: +49 921 55 74 76

    E-mail: martin.demleitner@uni-bayreuth.de

    Pressing area [mm] 600 x 600

    Pressing force [kN] 1000

    Cylinder stroke [mm] 450

    Working temperature [C°] 25 – 250

    Max. heating/cooling rate [C°/min] 7

    Temperature control medium
    Heat transfer oil

    Location: University of Bayreuth

    Contact: Christian Bauer

    Phone: +49 921 55 74 80

    E-mail: christian.bauer1@uni-bayreuth.de

     

    Labor-Heizpresse | Langzauner Typ LZT 110 L | Polymer Engineering Bayreuth

    max. frequency in echo mode [MHz] 16 in water

    max. frequency in through-transmission mode [kHz] 120 in air

    max. amplification [dB] 90

    min. defect size [mm] 5 (in air)

    0.25 (in water)

    Testing options

    A-, B- and C-scan, 3D scan

    Software for quantitative evaluation of delamination areas

     

    Location: University of Bayreuth

    Contact: M. Sc. Martin Demleitner

    Phone: +49 921 55 74 76

    E-mail: martin.demleitner@uni-bayreuth.de

    Ultraschallanlage | Airtech HFUS 2400 | Polymer Engineering Bayreuth

    Features

    Recording of the material temperature during cross-linking

    Oil bath for temperature control

    Temperature recording

    Determination of relative viscosity

    Location: University of Bayreuth

    Contact: M.Sc. Fabian Hübner

    Phone: +49 921 55 75 12

    E-mail: fabian.huebner@uni-bayreuth.de

    Interior [cm3] 75 x 100 x 75

    Usable space volume [m3] 0.562

    Maximum temperature [°C] 250

    Location: University of Bayreuth

    Contact: M.Sc. Fabian Hübner

    Phone: +49 921 55 75 12

    E-mail: fabian.huebner@uni-bayreuth.de

    Interior volume [l] 49

    Temperature [C°] 20-200

    Vacuum [mbar] 1-1013

    Location: University of Bayreuth

    Contact: M.Sc. Fabian Hübner

    Phone: +49 921 55 75 12

    E-mail: fabian.huebner@uni-bayreuth.de

    Test chamber volume [l] 100

    Temperature [C°] -70 to 180

    Heating/cooling rate [°C/s] 3

    Humidity control

    10 % to 98 % r.h. in the temperature range from 10 to 95°C

    Location: University of Bayreuth

    Contact: M.Sc. Fabian Hübner

    Phone: +49 921 55 75 12

    E-mail: fabian.huebner@uni-bayreuth.de

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