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    ALUMINUM ALLOY PRETREATMENT WITH PHOSPHORUS-CONTAINING ORGANIC ACIDS FOR SURFACE MODIFICATION
    1.
    发明申请
    ALUMINUM ALLOY PRETREATMENT WITH PHOSPHORUS-CONTAINING ORGANIC ACIDS FOR SURFACE MODIFICATION 审中-公开

    公开(公告)号：WO2021252568A1

    公开(公告)日：2021-12-16

    申请号：PCT/US2021/036527

    申请日：2021-06-09

    申请人： NOVELIS INC.

    发明人： BERNER, Michèle Edith ,  GUÈRIN, Mathilde ,  FRAUENRATH, Holger ,  YEO, Reuben ,  BOMAL, Enzo

    IPC分类号： C23C22/03 ,  C23C22/73 ,  C23C22/78

    摘要： Described are techniques for making aluminum alloy products and methods for pretreating aluminum alloys with small molecules, and the resultant aluminum alloy products, in which small molecules including phosphorus-containing organic acid functionality, such as organo-phosphonic acids, are applied to a surface of an aluminum alloy product to generate a self-assembled monolayer or multilayer of small molecules on the surface of the aluminum alloy product. Mixtures of different phosphorus-containing organic acids may be employed. At least some of the phosphorus-containing organic acids may exhibit a hydrophilic character, such as by including one or more hydrophilic functional groups. The self-assembled monolayer or multilayer including hydrophilic functionality may advantageously allow the aluminum alloy product to have a good wettability by water and other hydrophilic substances, such as some epoxy adhesives, but also to have a good wettability by hydrophobic substances, such as some lubricants.