A process for surface treating an aluminium article comprises anodically oxidizing the article and dipping the anodically oxidized article in a polymer latex. To render the polymer coating layer this formed water-insoluble, the polymer latex is prepared by polymerizing one or more ethylenically unsaturated monomers in such a manner that polymer particles of the polymer latex are negatively charged, the polymer latex being adjusted to a pH value below 3.
对铝制品进行表面处理的工艺包括对铝制品进行阳极氧化,并将阳极氧化后的铝制品浸入聚合物胶乳中。为了使形成的聚合物涂层不溶于
水,聚合物胶乳的制备方法是将一种或多种
乙烯不饱和单体聚合,使聚合物胶乳的聚合物颗粒带负电荷,聚合物胶乳的 pH 值调节到 3 以下。