Adhesion in Polymer/Steel Sandwiches

Abstract Polymer/steel sandwiches are able to reduce the nuisance due to vibrations and noise in automotive applications, for example. Thin layers of polymer are inserted between two metal sheets. The deformation of the polymer is responsible for the damping properties of the sandwiches and, therefore, the viscoelastic behavior of the polymer is of major importance. However, adhesion between the two materials is also required. The polymer studied in the present work is a copolymer of ethylene and vinyl acetate (EVA) containing 28 wt% of vinyl acetate grafted with maleic anhydride (1 wt%). A wedge test is used to measure the interfacial strength and the durability of the adhesive bond. The influence of the surface treatment of the steel substrate on the adhesive behavior and the effect of water has been studied. FTIR surface analysis after cleavage helped us to identify the nature of the interfacial bonds.

[1]  F. Marchetti,et al.  Study of chromate coatings obtained on phosphatized steels: a characterization by AES and XPS techniques , 1991, Journal of Materials Science.

[2]  R. Paul,et al.  Iron(III) acetates , 1978 .

[3]  L. E. Kukacka,et al.  Nature of interfacial interaction mechanisms between polyacrylic acid macromolecules and oxide metal surfaces , 1984 .

[4]  J. Cognard.  Quantitative Measurement of the Energy of Fracture of an Adhesive Joint Using the Wedge-Test , 1987 .

[5]  L. Lavielle,et al.  Surface properties and adhesion mechanisms of graft polypropylenes , 1989 .

[6]  K. L. Devries,et al.  Analysis and testing of adhesive bonds , 1977 .

[7]  P. Painter,et al.  Acid salts and the structure of ionomers , 1990 .

[8]  Robert D. Corsaro,et al.  Sound and vibration damping with polymers , 1990 .

[9]  J. Wojtkowiak,et al.  Zinc phosphate treatment of metals , 1980 .

[10]  A. Sawaby,et al.  Temperature dependence of the reaction between some metal oxides and polyacrylic acid , 1990 .

[11]  C. H. Rochester,et al.  Infrared studies of the adsorption of probe molecules onto the surface of goethite , 1979 .

[12]  Y. S. Chen,et al.  Vibration damping characteristics of laminated steel sheet , 1991 .

[13]  L. H. Sperling,et al.  Sound and Vibration Damping with Polymers: Basic Viscoelastic Definitions and Concepts , 1990 .

[14]  T. Sawa,et al.  A Stress Analysis of Adhesive Butt Joints of Dissimilar Materials Subjected to Cleavage Loads , 1991 .

[15]  Sang Yun Park,et al.  Morphological, thermal and rheological properties of blends: Polyethylene/nylon-6, polyethylene/nylon-6/(maleic anhydride-g-polyethylene) and (maleic anhydride-g-polyethylene)/nylon-6 , 1991 .

[16]  H. Leidheiser,et al.  The mechanism for the cathodic delamination of organic coatings from a metal surface , 1983 .

[17]  B. Boutevin,et al.  Synthese de copolymeres greffes a base de polyethylene et leurs applications aux colles hot-melt et aux primaires d'accrochage , 1990 .

[18]  Chi‐Wen Lin.  Modification of polypropylene by peroxide-catalysed grafting of maleic anhydride for adhesive bonding: surface and interface , 1993, Journal of Materials Science Letters.

[19]  J. Cognard.  The Mechanics of the Wedge Test , 1986 .