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Communication Dans Un Congrès Année : 2022

Influence of fiber/matrix interface on gas permeability properties of CF/TP composites

Gautier Allusse
Olivier de Almeida
Quentin Govignon
Fabrice Schmidt

Résumé

One of the main properties to be satisfied in hydrogen applications is low gas permeability. In composite materials, this property depends on the processing parameters and in particular on the residual porosity, but also on the quality of the fiber/matrix interface. This is particularly the case in composites involving a thermoplastic matrix with carbon fibers as the lack of reactive group on the fiber surface can limit the level of interfacial interaction between the reinforcement and the matrix. In this study, the role of the interface is therefore analyzed through the investigation of the hydrogen permeability of CF/PVDF and CF/PPS composites manufactured with different grades of polymers and reinforcements. The hydrogen permeability of the composites was determined, and a correlation with the crystallization behavior of the matrix on the fiber surface could be identified. Hydrogen permeation decreases when the fiber favors matrix nucleation.
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Dates et versions

hal-03948387 , version 1 (20-01-2023)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Gautier Allusse, Olivier de Almeida, Quentin Govignon, Fabrice Schmidt. Influence of fiber/matrix interface on gas permeability properties of CF/TP composites. ECCM20- Proceedings of the 20th European Conference on Composite Materials, Jun 2022, Lausanne, Switzerland. p. 577-584, ⟨10.5075/epfl-298799_978-2-9701614-0-0⟩. ⟨hal-03948387⟩
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