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Through its modern composite materials laboratory, CENER provides assessment and characterisation services for new blade materials, comprising:

  • Chemical properties.
  • Physical properties: Mechanical properties, viscosity, thermal conductivity, etc.
  • Cost and processability requirements.
  • Resin rheokinetics

 Support activities are also provided for the blade manufacturing process through:

  • Optimised parameterisation of existing processes: VARI, prepregs, etc.
  • Modification or definition of processes to reduce manufacturing times and improve both product quality and reliability.
  • Selection of the most adequate materials for each product and process.
  • Cost and productivity assessment.

To this end, CENER has the following tools:

  • Experimental characterisation of resin rheokinetics.
  • Experimental permeability characterisation of reinforcements.
  • Numerical simulation of mould filling processes.

A 3D simulation program that makes use of empirically adjusted models has been developed at CENER to model the resin flows in full-size blade moulds to improve their designs.


Laboratory equipment:

  • DSC: Cure kinetics, Cp measurements.
  • DMA: Tg measurements, modulus measurements, elastic/viscoelastic behaviour.
  • Brookfield: Viscosity and evolution during curing.
  • Gel time: Measurements in thermosetting resins.
  • Optical microscope with image software: Porosity measurements, layer thickness, fibre alignment.
  • Fatigue test machine 250 KN: Fatigue tests.
  • Static test machine 600 KN: Tensile, compressive, 3 & 4-point bending tests.
  • Large work area to test subcomponents: 300 KN load cell to test adhesives, resins or coats.
  • Determination of FVF and void contents.
  • Density measurements.
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