Environmental stability of ethylene–acrylic acid adhesive copolymers bonded to metal substrates
Article first published online: 9 MAR 2003
Copyright © 1968 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 12, Issue 8, pages 1873–1888, August 1968
How to Cite
Wargotz, B. (1968), Environmental stability of ethylene–acrylic acid adhesive copolymers bonded to metal substrates. J. Appl. Polym. Sci., 12: 1873–1888. doi: 10.1002/app.1968.070120809
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 24 JAN 1968
- Manuscript Received: 30 NOV 1967
A study was conducted on the influence of high humidity and temperature on aluminum and copper sheet coated with ethylene–acrylic acid or ethylene–methacrylic acid copolymers. Infrared spectrometric and differential thermal analysis data indicate that a contributing cause to failure of the bond between the acrylic acid copolymers and copper is the solubilization of an underlying weak oxide layer under conditions of the test. No significant weakening of the bond of aluminum–adhesive copolymer was observed under high humidity. From oxygen uptake studies, thermogravimetric analysis in air, and infrared spectra of polymer bonded to metals, a general understanding of the thermal-oxidative stability of the ethylene–acrylic and ethylene–methacrylic copolymers has emerged. The acrylic acid copolymers are less stable in an oxidative environment than ethylene homopolymers and the ethylene–alkyl acrylate copolymers.