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Communication Dans Un Congrès Année : 2021

Complementary approaches for enhancing polystyrene hydrophobicity : additives development and replication of micro/nanotexture

Résumé

This work aims at developing polymer surfaces with enhanced hydrophobic behaviour by controlling both the surface chemistry and the surface structure. The chemical modification is given via the elaboration of polymers blends by incorporation of own-synthetized tailored fluorinated additives (FA) in commercial polystyrene and the physical approach is based on micro/nano-structuration of polymers surface. Different films containing various content of fluorine based on commercial polystyrene (PS) and FA were elaborated by solvent casting method. The nano-structuration of polymers surface was replicated from a Nickel insert using hot embossing technique with optimized processing conditions including, polymer/mold interfaces, micro/nano-textures, temperature and pressure. The impact of FA on both the wettability properties and the replication efficiency was evaluated, by water/polymer static contact angle and quantification of replication rate, respectively. It was evidenced that the use of this tailored additive, even at low percentages, associated with the structuration of the PS surface improves significantly the hydrophobicity of polystyrene and the robustness of the replication process.

Domaines

Matériaux

Dates et versions

hal-03507377 , version 1 (03-01-2022)

Identifiants

Citer

Rachel Le Brouster, Julien Giboz, Ali Nourdine, Lionel Tenchine, Florence Dubelley, et al.. Complementary approaches for enhancing polystyrene hydrophobicity : additives development and replication of micro/nanotexture. 2021 World Congress on Micro and Nano Manufacturing, Sep 2021, online, India. ⟨10.3390/mi13030467⟩. ⟨hal-03507377⟩
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