(Key Laboratory of Marine New Materials and Related Technology, Zhejiang Key Laboratory of Marine Materials and Protection Technology, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P.R. China)
Keywords:
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CLC:
PACS:
TG 146.4
DOI:
10.7502/j.issn.1674-3962.2014.02.02
DocumentCode:
Abstract:
Silane based sol-gel coating refers to coating material prepared by sol-gel technique using alkyl alkoxy silane as precursor. Silane is a molecular level organic-inorganic hybrid molecule, therefore silane based sol-gel coating combines the properties of organic materials and inorganic materials, and can achieve desired properties through controlling organic and inorganic components. Its thermal stability, scratching resistant and adhesion to inorganic material are significantly higher than organic coating, its flexibility and adhesion to organic materials are remarkably higher than inorganic coating. Recently, this novel and special coating is widely used to protect metal materials such as aluminum, iron, magnesium and copper-based metals. This paper will introduce basic reactions in sol-gel process, the bond mechanism between silane and metal surface and application of silane based sol-gel coating on various metals. Recent research and future application of such coating will also discuss in the paper