Texturation and superhydrophobicity of polyethylene terephthalate thanks to plasma technology

摘要: The biocontamination is one of the major problems in various industrial sectors, specifically medicine and environment fields. It has been shown that surface characteristics materials, such as superhydrophobic character, can allow obtaining " antibioadhesive surfaces. Indeed, wetting reduced which may favor "sliding" aqueous medium on surface. Hence, its ability to interact with bacteria also be reduced. This phenomenon associated chemical functionality coating nano-roughness, order not mechanically trap bacteria. Here, anti-bioadhesive surfaces are designed from polyethylene terephtalate (PET) by three steps plasma-treatment. First, nano-roughness created oxygen plasma-treatment controlled dimensions. Then, plasma-treated polymeric was hydrophobized a tetrafluorocarbon plasma, allowing obtain water contact angle 145 ± 4 °. However, SEM pictures give evidence show degradation structuration caused CF4-plasma consequently, superhydrophobicity reached. Thus, plasma-polypyrrole layer deposited before plasma-fluorination, protective role against generated fluorinated species, preserving improving fluorination rate. Therefore, obtained 157 2 ° hysteresis 65 3 these reduce bioadhesion will performed further work.