Influence of an electric field on polar‐group orientation and adhesion at poly(ethylene terephthalate) surfaces

Abstract

SYNOPSISApplication of a high continuous electrical field accelerates the orientation kinetics of polar groups at a polymer-water interface and so improves the surface polarity. This is preliminary to adhesion establishment on a polar substrate. Adhesion of PET and gelatin performed under an electric field leads to an increase of the interfacial adhesion properties, due to simultaneous effects of the electric field at the interface. Polar-group orientation at a polymer surface and electrical aspects of adhesion are therefore self-consistent.

Role of Surface Polarity in the Evolution of Polymer Surface Properties in Liquid Medium

“…This ability to control interfacial and surface attributes has been applied in applications such as adhesion of metal to polymers [7][8][9], modification of surface properties for chromatographic separators [10][11][12][13], and surfaces for regulated cell adhesion and detachment [14,15].…”

Improvement of Interfacial Shear Strength of Mendong Fiber (Fimbristylis globulosa) Reinforced Epoxy Composite Using the AC Electric Fields

“…The external electric field causes the movement of electrons due to the intrinsic dipole arrangement of opposite charge [26] and setting the orientation of the molecule [27]. In polar molecules, the polarity of the electric field can improve the surface and lead to increased adhesion properties of the polymer interface PET/gelatin [28]. The electric field is also able to convert hydrogen bonds [29] and capable of forming a covalent bond as the molecular interactions of polar and non polar bond [30].…”