申请人:3M INNOVATIVE PROPERTIES COMPANY
公开号:US10208223B2
公开(公告)日:2019-02-19
A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group.
In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.
所述的含氟聚合物涂料组合物包括水性液体介质、分散在水性液体介质中的含氟聚合物颗粒和至少一种氮丙啶化合物。氮丙啶化合物包括至少两个氮丙啶基团(即聚氮丙啶)或至少一个氮丙啶基团和至少一个烷氧基硅烷基团。
在另一个实施方案中,描述了一种物品,该物品包括基底,其中基底的表面包括由含氟聚合物颗粒组成的涂层;以及由至少两个氮丙啶基团或至少一个氮丙啶基团和至少一个烷氧基硅烷基团组成的至少一种氮丙啶化合物的反应产物。涂层可用作将非含氟基材粘合到含氟聚合物薄膜的底层,和/或涂层可用作(例如外露的)表面层。在某些实施例中,物品可以是光伏组件的(如背面)薄膜。