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Communication dans un congrès

Design of bio-based self-stratified coatings targeting flame retardant applications: a systematic approach

Abstract : Self-stratification is an innovative process providing a multi functional coating. The concept of self-stratifying coating is to bring the primer, intermediate and top coat properties together in a one-pot formulation. To design a self-stratifying coating, two partially incompatible resins are mixed in a solvent blend which separates spontaneaously after application and curing. To compare to the traditional multi-layer coating approach, self-stratification allows reducing the number of formulation steps, chemicals used and pollution emission. However, designing a perfectly stratified coating is a challenge, taking into account the high number of parameters involved (solvents, curing temperature, viscosity, etc.). Moreover, most already designed self-stratifying coatings use oil-based epoxy resins as thermoset resin, and “greener” solutions need to be investigated. In this work, bio-based epoxy resins and silicone resins were dissolved in various solvent blends and cured under different conditions. The stratification degree and the adhesion properties on a composite substrate were investigated depending on following parameters: (i) resin properties, (ii) cross-linking epoxy rate, (iii) curing temperature and (iv) solvent evaporation rate.
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Communication dans un congrès
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Soumis le : lundi 16 décembre 2019 - 14:58:03
Dernière modification le : vendredi 6 août 2021 - 09:48:05
Archivage à long terme le : : mardi 17 mars 2020 - 17:00:56


  • HAL Id : hal-02414158, version 1



Charlotte Lemesle, Anne-Sophie Schuller, Mathilde Casetta, Sophie Duquesne, Serge Bourbigot, et al.. Design of bio-based self-stratified coatings targeting flame retardant applications: a systematic approach. Coatings Science International, Jun 2019, Noordwijk, Netherlands. ⟨hal-02414158⟩



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