Laboratory for composite materials


The production of thermoset and thermoplastic (bio)composites takes place at the IfBB in close cooperation with the Application Centre for Wood Fibre Research HOFZET of the Fraunhofer WKI using state-of-the-art machines and devices. In addition to application-oriented material development, the focus here is also on characterising the processing behaviour of these novel materials and also analysing the relationships between material composition and processing behaviour.

Interesting techniques

Double rapier weaving machine with Jacquard technology for the production of single and multilayer technical textiles

Technical data:

  • Double gripper
  • Jacquard attachment
  • Weaving width 50 cm
  • Creel for 3,456 bobbins

Production possibilities of technical fabrics:

  • Two-dimensional fabrics
  • Spacer fabrics (spacing up to 40 mm)
  • Integration of matrix yarns in the textile semi-finished product
  • Multi-layer fabric
  • Hybrid fabric
  • Functional integration
  • Load-path-compatible production of hybrid fibre composites

Fields of application:

  • Development of application-specific textile semi-finished products from hybrid material systems
  • Provision of cost-optimised, sustainable high-performance composites with the highest possible biogenic content
  • Combination of bioplastic, natural, glass, carbon and synthetic polymer fibres
  • Recyclability


Fibre spraying unit

Technical data and equipment:

  • Reproducible, industrial cutting of natural fibres, carbon fibres, hybrid fibres, brittle fibres (glass, basalt), viscoplastic fibres (thermoplastic synthetic fibres), etc.
  • Transport of four yarns or rovings simultaneously via separate hoses
  • Cutting capacity depending on fibre type: 5 to 25 kg/h
  • Process-safe fibre length: 1-100 mm
  • Infinitely variable cutting length in the running process
  • Use of commercially available and newly developed polymer matrices (epoxy, polyurethane, etc.)
  • Processing of 2-component resin systems
  • Viscosity: < 3,000 mPas
  • Component weight: up to a maximum of 400 kg
  • Component size: up to approximately 1,000 mm x 1,000 mm

Fields of application:

  • Resource-saving and low-waste production
  • Production of large-area and complex components
  • Cost savings through near-net-shape production
  • Process steps such as creating a textile, cutting and draping are eliminated
  • Unique component properties through targeted adaptation of the weight per unit area and the fibre cut length to the component geometry ("tailored composites")
  • Local, specific property profiles of a component according to component load
  • Unique combination of fibres that could not be cut industrially up to now with variable cutting length and simultaneous "resin application" (spraying wet fibres) in 2D, 2 ½ D and 3D applications
  • Insertion of inserts into the component, such as fasteners, threads, etc.
  • Reduction of investment and production costs
  • Easy integration into existing production lines


Water-jet cutting system

Function: Water-jet cutting can be used to process practically all types of material with high precision, purely mechanically and without thermal input. For bioplastics and biocomposites, pure water is usually used for water-jet cutting; if required, a hard powdery material can be added to the water to achieve abrasive cutting processes.

Technical data:

  • Working range of X/Y-axis: 2,020 x 1,020 mm
  • Working range of Z-axis: 200 mm
  • Cutting speed: 1 to 30,000 mm/minute
  • Positioning and repeat accuracy: +/- 50 µm
  • Pump pressure: 300 to 3,800 bar (infinitely variable)
  • Support weight: maximum 1000 kg/m²



  • Vacuum infusion system including accessories
  • Rucks hand lever heating press
  • Systems for manual surface modification of yarns and fabrics as well as single fibres
  • Double rapier weaving machine with Jacquard technology for the production of single and multilayer technical textiles
  • Fibre spraying unit
  • Diamond sample saw
  • CNC milling machine for sample preparation
  • Rucks lower piston press in column design
  • Water-jet cutting system
  • Paternoster


The team

Laboratory engineer

Non-Public Person