Effects of residual oils on the adhesion characteristics of metal-CFRP adhesive joints. (1st January 2019)

• Record Type: Journal Article
• Authors: Kwon, Da Som; Yoon, Soon Ho; Hwang, Hui Yun
• Is Part Of: Composite structures. Volume 207(2019)
• Page Start: 240
• Page End: 254
• Publication Date: 2019-01-01
• Subjects: Residual oils -- Metals -- Carbon fiber epoxy composites -- Adhesive joints; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2018.09.044
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: Although proper surface treatment is very important in adhesively bonded joints, perfectly clean surfaces have been considered in previous studies. Making the surface of an adherend clean is generally very difficult in real fields. In order to identify the minimum surface treatment that can achieve the required adhesion strength, we investigated the effects of residual oils on the adhesion characteristics of metal-carbon fiber-reinforced epoxy composites adhesive joints. We found that the amount of residual oils on the metal surfaces should be controlled to be less than 1.0 g/m 2, and that enough adhesion strength could be obtained if the flame treatment followed. Experimentation also suggested that three or four cycles of ethanol cleansing and five seconds of flame treatment was the minimum surface treatment easily adoptable in industrial fields.