Fibre-based Composites & Interfaces

Interfaces between two dissimilar materials play a key role in many areas such as aerospace, aeronautic and automotive sectors. This is particularly the case for fibre-reinforced polymer composites whose performances are mainly driven by the interface and interphase integrity. In this area, the challenge is to develop functional interfaces to contribute to developing the new generation of composites materials. 

Main expertise fields

Our activities span from the characterization, design and development of high-performance fibre-reinforced polymer composites with special focus on performance tailoring of interfaces / interphases.

Surface and interface engineering:

  • Fibre-matrix adhesion and compatibilization of composite constituents
  • Fibre/filament/tape surface activation and chemical treatment
  • Adhesion promotion
  • Nanostructured interphases

Multifunctional composites through tailored interfaces:

  • Interface durability
  • Thermal & electrical management
  • Responsive interfaces
  • Self-healing coatings

Composites characterization and analysis:

  • In-situ characterization of constituents & interfaces
  • Surface characterization
  • Filament/tape/coupon testing
  • Full-field strain measurement (Digital Image Correlation)
  • Microstructural analysis and fractography (SEM, Computed Microtomography)

Research challenges

  • Development of surface treatment approaches to promote adhesion, integrity and functionality of fibre-matrix interfaces, filament/tape/ply and multi-material interphases.
  • Development of structural disassembly and debonding on-demand, as well as recycling routes for composites.
  • Development of experimental techniques to characterize interfaces/interphases of composites and connect the nano/micro information to the macro behaviour of composites.

Application areas

  • Interfacial layers in high performance CFRP composites
  • Interphases with (coupled) mechanical, thermal, electrical, debonding capabilities
  • Improved polymeric Cord-rubber interface for tire applications
  • Innovative joining of hybrid systems / dissimilar materials
  • Reuse/repair/recycling of composites materials

Main assets

  • Eco-friendly coatings dedicated to fibre-matrix compatibilization of thermoplastic/thermosets with carbon/glass/natural fibres
  • Adhesion promoters for metal/polymer assembling
  • Antistatic thermoplastic composite
  • Thermal dissipative thermoplastic composite
  • Functional barrier Coatings (fire, gas, bacteria, water)
  • Debonding-on demand solutions
  • Self-healable polymer composites
  • Advanced multi-scale and multi technique characterization methodologies


  • Enabling surface treatment technologies: wet and dry processes 

Selected publications

Domaines de recherche
  • Matériaux

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Dr David RUCH
Dr David RUCH
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