An overview of the basic aspects of polymer adhesion. Part I: Fundamentals

Abstract

Adhesion between two substrates is a complex phenomenon which at present is still not well understood. The important existing adhesion models (electrical, diffusion, thermodynamic adsorption, chemical, etc.) are reviewed in order to try to explain their mechanisms. Thermodynamic adsorption is now believed to be one of the most importnat mechanisms by which adhesion is achieved. Difusion and wetting are kinetic means in attaining good adsorption of a polymer at the interface. In the case of this model (thermodynamic adsorption), the notion of surface energy is developed and the importance of this property in the understanding of adhesion phenomena is emphasized. The methods of determining the surface characteristics of low and high energy solids are presented. The role played by acid‐base interactions in adhesion is also mentioned.

Effects of ion beam treatment on atomic and macroscopic adhesion of copper to different polymer materials

“…The values of the work of adhesion assume that only secondary bonds act at the interface which have much lower bond energy compared to primary chemical bonds (covalent, ionic and metallic). Adhesion by chemical bonding takes place rather frequently in the case of metal-polymer interfaces [16]. The formation of such bonds is based on a charge transfer from the metal to the polymer.…”

Chitosan: Emergence as potent candidate for green adhesive market

“…Temperature was most governing factor in diffusion adhesion, likewise, pH in electrostatic adhesion, wettability and roughness are important factors in mechanical and diffusion adhesions [21] and void (air bubble) formation in mechanical adhesions [22]. To characterize the adhesion, different types of mechanical tests were used in order to evaluate the strength of adhesives.…”

Interactions between Talc Particles and Water and Organic Solvents

“…In other between the talc filler and the matrix is essential in the words, the surface tension calculated from contact angles control of the behavior of the composite material. This adhe-are obtained neglecting vapor adsorption on the solid, and sion depends on the surface properties of the filler and of the energetic term linked to this adsorption: the surface the matrix (1,2). The purpose of this work is to determine pressure.…”