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Chemisorption mechanism and effect of polyacrylic acid on the improvement in bond durability of zinc phosphate-to-polymer adhesive joints.(Author abstract)

Sugama, T. ; Kukacka, L. E. ; Carciello, N. ; Warren, J. B.

Journal of Materials Science, Feb, 1987, Vol.22(2), p.722 [Tạp chí có phản biện]

ISSN: 0022-2461

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  • Nhan đề:
    Chemisorption mechanism and effect of polyacrylic acid on the improvement in bond durability of zinc phosphate-to-polymer adhesive joints.(Author abstract)
  • Tác giả: Sugama, T. ; Kukacka, L. E. ; Carciello, N. ; Warren, J. B.
  • Chủ đề: Zinc (Metal)
  • Là 1 phần của: Journal of Materials Science, Feb, 1987, Vol.22(2), p.722
  • Mô tả: Byline: T. Sugama (1), L. E. Kukacka (1), N. Carciello (1), J. B. Warren (1) Abstract: It has been found that the outermost surface sites of polyacrylic acid-complexed crystalline zinc phosphate layers precipitated on cold-rolled steel surfaces act significantly to promote interfacial adhesive bonding to polymeric topcoats. This is the result of electrostatic internal diffusion and segmental chemisorption mechanisms of polyelectrolyte macromolecules either on newly precipitated crystal nuclei or on crystal growth sites during the primary zinc phosphate conversion process. The nature of the polymer-to-polymer chemical bond produced at the polymer-to-complex zinc phosphate precoat interfacial joints plays the key role in the achievement of long-term bond durability upon exposure to chemically corrosive environments. The locus of adhesive loss at the polymer-to-complex zinc phosphate joints after exposure to a hot acid solution was clearly identified to be cohesive failure in the crystalline precoat layers. A stable bond resulted from the formation of an interfacially produced hydrophobic structure by interactions between the polymer and the functional organic species existing on the complex precoat surfaces. The chemisorbed polyelectrolytes also served chemically to couple the organic coating and the inorganic zinc phosphate conversion layer. Author Affiliation: Article History: Registration Date: 29/01/2005 Received Date: 25/03/1986 Accepted Date: 05/06/1986
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0022-2461

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