Paper Title:
Alumina Sol-Gel Film for Pretreatment to Paint on Aluminum Alloy
  Abstract

Aluminum alloy coatings for pretreatment are developed by sol-gel method. The adhesion between sol-gel film and the paint film was measured by scratching circles and corrosion resistance of sol-gel film was tested by salt spraying experiment. The adhesion between sol-gel film made by pure alumina sol and the paint film was so poor that it is unsuitable for ground coatings, but the composite sol which ultrafine Al2O3 powder was added to pure alumina sol can improve the adhesion and corrosion resistance. If the first layer film is made of pure alumina sol and the second layer is made of composite sol, the neutral salt spraying time of double layers film is longer than the single-layer composite sol-gel film. The adhesion for both double composite film and single-layer composite sol-gel film are first-grade. When solution of potessium dichromate is dropped on double combinatorial film for 100s, the solution will change in color. The gloss of paint film on double composite sol-gel film is 0.827, flexibility is 2×10mm and impact resistance is 1kg∙50cm. It is possible that composite sol-gel film or combinatorial sol-gel film replace dichromate salt conversion film on aluminum alloy using for painting pretreatment.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
1678-1681
DOI
10.4028/www.scientific.net/AMR.239-242.1678
Citation
Q. Zhou, P. Zhao, C. L. He, Q. K. Cai, "Alumina Sol-Gel Film for Pretreatment to Paint on Aluminum Alloy", Advanced Materials Research, Vols. 239-242, pp. 1678-1681, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: A.K. Go, J.K. Kim, Se Heang Oh, Soon Hong Yuk, Jin Ho Lee
Abstract:This study was designed to evaluate the effect of polyethylene glycol (PEG) and nonsteroidal anti-inflammatory drug (ibuprofen) on the...
373
Authors: Min Qi, Da Yi Yang, Jing Ying Zhang, Hong Jun Ai
Abstract:In order to improve the osteoblast growth and bacteria resistance, Zn-containing hydroxyapatite (Zn-HA) and titanium oxide (TiO2)...
367
Authors: Qi Zhou, Hong Liang Zhao, En Jun Song, Xiu Lian Chen
Chapter 3: Energy Application, Material Engineering and Environment
Abstract:The development of non-hexavalent chromium conversion coating on aluminum alloy is imminent, hexavalent chromium Cr6+ compounds have serious...
332
Authors: Xiao Feng Zheng, Qi Yong Zeng, Zhu Li, Li Zheng Jiang, Feng Chen
Chapter 3: Material Engineering and Science
Abstract:By the method of orthogonal experiment, with different sputtering power, sputtering pressure, sputtering time and substrate bias, 9 NiCr-NiSi...
3748
Authors: Qi Zhou, Guang Xia Sun, Bo Hu, Ping Zhao
Chapter 1: Advanced Material Engineering and Dynamic Systems
Abstract:Silane coupling agent is gradually concerns as a substitute for phosphate pre-treatment of painting. Ten kinds of silane solution such as the...
94