[Problem]
To provide an aqueous coating film-forming composition of the present invention that can be coated uniformly on a silicone rubber surface without causing repelling or coating failure even when applied in the silicone rubber surface at a film thickness of 30 µm or less, and forms an antifriction dry coating film that reduces friction and/or blocking of the substrate surface on the surface.
[Resolution Means]
An aqueous coating film-forming composition for forming an antifriction dry coating film that reduces friction and/or blocking of a surface of a substrate, containing (A) a solid lubricant, (B) a thickener, and (C) a silicone binder in the form of an oil-in-water silicone emulsion containing (c1) an ionic emulsifier and (c2) a polyoxyethylene-polyoxypropylene copolymerized nonionic emulsifier, where water content is removed to form an antifriction dry coating film containing 40 to 80 mass% the aforementioned component (A), 0.50 to 10 mass% of the aforementioned component (B), 0.60 to 5 mass% of the aforementioned component (c2), and 5 to 49.5 mass% of aforementioned component (C) (solid fraction); as well as an application thereof (particularly including airbag coating)
问题
提供一种本发明的
水性涂料成膜组合物,该组合物可以均匀地涂布在
硅橡胶表面,即使涂布在
硅橡胶表面的膜厚为 30 µm 或更薄,也不会导致排斥或涂布失败,并且形成的防摩擦干涂膜可以减少基材表面对表面的摩擦和/或阻塞。
[解析手段]
一种用于形成可减少基材表面摩擦和/或阻塞的抗摩擦干涂膜的
水性涂膜成膜组合物,含有 (A) 固体润滑剂,(B)
增稠剂、和 (C) 有机
硅粘合剂,其形式为
水包油型有机
硅乳液,含有 (c1) 离子
乳化剂和 (c2) 聚氧
乙烯-聚氧
丙烯共聚非离子
乳化剂,其中
水含量被去除以形成抗摩擦干涂膜,其中含有 40 至 80 质量%的上述组分 (A)、0.50%至 10%的上述组分 (B)、0.60%至 5%的上述组分 (c2)和 5%至 49.5%的上述组分 (C)(固体组分);以及其应用(尤其包括安全气囊涂层)