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首页> 外文期刊>ACS applied materials & interfaces >Hydrophobic Coatings on Cotton Obtained by in Situ Plasma Polymerization of a Fluorinated Monomer in Ethanol Solutions
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Hydrophobic Coatings on Cotton Obtained by in Situ Plasma Polymerization of a Fluorinated Monomer in Ethanol Solutions

机译：通过在乙醇溶液中原位等离子体聚合而获得的棉花疏水涂层

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摘要

Plasma polymerization using hydrophobic monomers in the gas phase is a well-known technology to generate hydrophobic coatings. However, synthesis of functional hydrophobic coatings using plasma technology in liquids has not yet been accomplished. This work is consequently focused on polymerization of a liquid fluorinated monomer on cotton fabric initiated by atmospheric plasma in a dielectric barrier discharge configuration. Functional hydrophobic coatings on cotton were successfully achieved using in situ atmospheric plasma-initiated polymerization of fluorinated monomer dissolved in ethanol. Gravimetric measurements reveal that the amount of polymer deposited on cotton substrates can be modulated with the concentration of monomer in ethanol solution, and cross-linking reactions occur during plasma polymerization of a fluorinated monomer even without the presence of a cross-linking agent. FTIR. and XPS analysis were used to study the chemical composition of hydrophobic coatings and to get insights into the physiochemical processes involved in plasma treatment. SEM analysis reveals that at high monomer concentration, coatings possess a three-dimensional pattern with a characteristic interconnected porous network structure. EDX analysis reveals that plasma polymerization of fluorinated monomers takes place preferentially at the surface of cotton fabric and negligible polymerization takes place inside the cotton fabric. Wetting time measurements confirm the hydrophobicity of cotton coatings obtained although equilibrium moisture content was slightly decreased. Additionally, the abrasion behavior and resistance to washing of plasma-coated cotton has been evaluated.
机译：使用气相中的疏水性单体的血浆聚合是一种众所周知的技术，用于产生疏水涂层。然而，尚未完成使用液体等离子体技术的功能性疏水涂层的合成。因此，该作品将聚焦在介电阻挡放电配置中由大气等离子体引发的棉织物上的液体氟化单体的聚合。使用溶解在乙醇中的氟化单体的氟化单体的氟化单体的聚合成功地实现了棉花上的功能性疏水涂层。重量测量表明，沉积在棉底物上的聚合物的量可以用乙醇溶液中的单体浓度调节，并且在氟化单体的等离子体聚合过程中也发生交联反应，即使在没有交联剂的情况下也是如此。 FTIR。和XPS分析用于研究疏水性涂料的化学成分，并在血浆处理中的生理化学方法中获得有识。 SEM分析表明，在高单体浓度下，涂层具有三维图案，具有特征互连的多孔网络结构。 EDX分析显示，氟化单体的血浆聚合优先于棉织物表面进行，并且在棉织物内部发生可忽略的聚合。润湿时间测量确认所获得的棉涂层的疏水性，尽管平衡水分含量略微降低。另外，已经评估了磨损行为和对洗涤浆料的耐洗涤棉。

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