The influence of surface topography in the adhesion of polystyrene to aluminum

Autor: M. Chaudhury, M. S. El-Aasser, A. Namkanisom, S. Yankovskaya, O. L. Shaffer
Rok vydání: 1996
Předmět:
Zdroj: Proceedings, annual meeting, Electron Microscopy Society of America. 54:192-193
ISSN: 2690-1315
0424-8201
DOI: 10.1017/s0424820100163423
Popis: Polymer/metal adhesion has been studied by scanning(SEM) and transmission electron microscopy(TEM). Now with atomic force microscopy(AFM) we can scan the metal's surface and correlate the roughness with adhesion energy. We have chosen aluminum as the metal substrate and polystyrene(PS) as the nonreactive polymer adhesive. A great deal of research has been done on primed metal surfaces which are used to improve adhesion between the metal and the polymer. Our interest is to study the mechanical interlocking of the polymer to the metal without a primer coupling agent.Aluminum alloy 6061 was cut into plates 25x60x1 mm, cleaned with an alkali cleaner, rinsed with water, etched and anodized. The plates were etched in a solution of Na2Cr2O7·2H2O, H2SO4, and water in a 1:10:30 ratio by weight at 50-52°C for 12-20 min. After etching , they were rinsed, dried and anodized in 10% phosphoric acid solution with 15 V for 20 min, then were rinsed and dried again.A 1% PS solution in toluene was deposited on the prepared aluminum surface and air dried.
Databáze: OpenAIRE