• Surface modification by direct fluroniation

    Direct fluorination is a recognized method for modifying the surface properties of materials, and in particular polymers. This process allows to modify only the extreme surface while retaining the core properties of the material. In the case of organic polymers, for example, the modified polymer layer generally ranges from 0.01 to 10 microns. This gaseous treatment, usually carried out at room temperature, allows to adapt to the most complex geometries and to a very wide variety of materials. The chemical modification that operates on the surface of finished or semi-finished parts so processed is stable and durable over time.

    Direct fluorination is also increasingly used in organic synthesis because molecular fluorine is a very selective fluorination agent.

  • Our offer

    Conducting fluorination trials on all types of materials
    Search for new applications and development of industrializable original processes
    Batch processing of small size items
    Technical validation of high value-added and pre-industrialization processes
    Councel and recommendations on the use and properties of fluorination
    Support to industrialization
    Investigation of materials evolution in corrosive environments

  • Implemented techniques

    Low temperature fluorination and oxyfluorination of plastics, carbon, natural and synthetic fibres…
    Metal passivation: high temperature treatment (> 200 °c) producing a layer of stable metal fluoride
    20l and 50L stainless steel reactors for fluorination of medium-sized items
    Techniques for characterizing materials and surfaces: microscopy, contact angle, ATR-IR, hardness, Thermobalance
    Study of mechanical properties: tensile test, Thermomechanical analysis, DSC

  • Examples

    Protection of metals exposed to corrosive or aggressive environments
    Modification of the surface properties of plastics and fibres: adhesion, Tribology, selective gas permeability, printability/wettability
    Non-stick coatings for tooling (injection moulds): see fluorination of DLC coatings