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    • 34. 发明申请
    • Hydrophilic Film, Preparation Method and Applications Thereof
    • 亲水膜,其制备方法及应用
    • US20150241441A1
    • 2015-08-27
    • US14430145
    • 2013-09-12
    • 3M INNOVATIVE PROPERTIES COMPANY
    • Te-Wei ChenHuang Chin HungNaiyong Jing
    • G01N33/66C08J7/06
    • G01N33/66C08J7/06C23C18/1266Y10T428/24421Y10T436/144444
    • The present invention provides a hydrophilic film that causes a liquid to diffuse rapidly in a single direction. The hydrophilic film comprises a substrate having a texture of parallel sunken and raised patterns, and a hydrophilic coat comprising a coat of silicon dioxide particles. The present invention also provides a method for preparing the hydrophilic film. The method comprises: preparing an aqueous dispersion of silicon dioxide particles, wherein the average size of the silicon dioxide particles is 1 to 60 nm, and the concentration of the silicon dioxide particles is 0.05% to 15% by weight; coating the aqueous dispersion of silicon dioxide particles on a substrate, wherein the substrate has a texture of parallel sunken and raised patterns; and drying the substrate coated with the aqueous dispersion of silicon dioxide particles.
    • 本发明提供使液体在单一方向快速扩散的亲水性膜。 亲水膜包括具有平行凹陷和凸起图案的织构的基底,以及包含二氧化硅颗粒涂层的亲水性涂层。 本发明还提供了一种制备亲水膜的方法。 该方法包括:制备二氧化硅颗粒的水分散体,其中二氧化硅颗粒的平均尺寸为1至60nm,二氧化硅颗粒的浓度为0.05重量%至15重量%; 将二氧化硅颗粒的水性分散体涂布在基材上,其中基材具有平行凹陷和凸起图案的质地; 并干燥涂覆有二氧化硅颗粒的水性分散体的基材。