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HYDROPHILIZING AGENT FOR ALUMINUM-CONTAINING METAL MATERIAL, HYDROPHILIZING METHOD, AND HYDROPHILIZED ALUMINUM-CONTAINING METAL MATERIAL
HYDROPHILIZING AGENT FOR ALUMINUM-CONTAINING METAL MATERIAL, HYDROPHILIZING METHOD, AND HYDROPHILIZED ALUMINUM-CONTAINING METAL MATERIAL
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机译:含铝金属材料的加氢剂,加氢方法和加铝金属材料
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摘要
A hydrophilizing agent that maintains a favorable wettability for dew condensation even after a long-term use; a hydrophilizing method; and an aluminum-containing metal material treated by the hydrophilizing method and having excellent wettability for dew condensation are provided. The hydrophilizing agent contains a modified polyvinyl alcohol obtained by graft polymerization of at least one type of N-vinyl lactam onto polyvinyl alcohol, thereby having a polymer and/or copolymer of the N-vinyl lactam in a side chain and a water-soluble cross-linlcing agent which can bind to a lactam moiety and/or a hydroxyl group of the modified polyvinyl alcohol. By applying and drying the hydrophilizing agent, a hydrophilic film having excellent wettability for dew condensation is formed.
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