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    • 8. 发明公开
    • Modulated plasma glow discharge treatments for making super hydrophobic substrates
    • Modulierte Plasma-Glimmentladung-Behandlungen zur Herstellung超疏水剂底物
    • EP0985741A1
    • 2000-03-15
    • EP98116895.8
    • 1998-09-07
    • THE PROCTER & GAMBLE COMPANY
    • D'Agostino, RiccardoLamendola, RotalbaFavia, PietroCorzani, ItaloPalumbo, Gianfranco
    • C23C16/50C23C16/30B05D7/24
    • B05D1/62B05D5/083C03C17/22C03C17/32C03C23/006C03C2217/282C03C2217/285C03C2217/76C03C2218/153C23C16/30C23C16/515
    • The present invention deals with a method of treating polymeric or non polymeric articles for making their surface super hydrophobic, i.e. characterized by static water contact angle (WCA) values higher than about 120°, preferably higher than 130°, more preferably higher than 150°. The method consists of a modulated glow discharge plasma treatment (1) performed with a fluorocarbon gas or vapor compound fed in a properly configured reactor vessel where the substrates are positioned. The plasma process deposits a continuous, fluorocarbon thin film with super hydrophobic surface characteristics, tightly bound to the substrate.
      The substrates of interest for the present invention may include a wide range of materials in form of webs, tapes, films, powders, granules, woven and non-woven layers; substrates can be porous or non-porous, molded or shaped, rigid or flexible, made of polymers, textiles, papers, cellulose derivatives, biodegradable materials, metals, ceramics, semiconductors, and other inorganic or organic materials. Preferably, the substrate is formed into a desired shape or configuration, depending on its intended use, before being subjected to the treatment object of this invention.
      When organic synthetic resins are chosen, such substrate materials could be fabricated from polyethylene, polyacrylics, polypropylene, polyvinyl chloride polyamides, polystyrene,polyurethanes, polyfluorocarbons, polyesters, silicon rubber, hydrocarbon rubbers, polycarbonates and other synthetic polymers. A particularly preferred polymeric substrate is polyethylene or polypropylene.
    • 本发明涉及一种处理聚合物或非聚合物制品以使其表面超疏水性的​​方法,其特征在于高于约120℃,优选高于130℃,更优选高于150℃的静态水接触角(WCA) 。 该方法由调制的辉光放电等离子体处理(1)进行,其中氟化烃气体或蒸汽化合物在适当配置的反应器容器中进行,其中基板被定位。 等离子体工艺沉积具有超疏水表面特性的连续的碳氟化合物薄膜,与薄膜紧密结合。 本发明感兴趣的基材可以包括幅材,带,膜,粉末,颗粒,织造和非织造层形式的宽范围的材料; 基材可以是聚合物,纺织品,纸,纤维素衍生物,生物可降解材料,金属,陶瓷,半导体和其它无机或有机材料制成的多孔或无孔,模制或成形,刚性或柔性。 优选地,在经受本发明的处理对象之前,基板根据其预期用途形成所需的形状或构造。 当选择有机合成树脂时,这种基材可以由聚乙烯,聚丙烯酸,聚丙烯,聚氯乙烯聚酰胺,聚苯乙烯,聚氨酯,聚氟烃,聚酯,硅橡胶,烃橡胶,聚碳酸酯和其它合成聚合物制成。 特别优选的聚合物基材是聚乙烯或聚丙烯。