ON THE ROLE OF ELECTROSTATIC FORCES IN THE ADHESION OF POLYMER PARTICLES TO SOLID-SURFACES

Simultaneous measurements have been made of the adhesive force and dou ble electric charge of particles after their removal from a metal surf ace. For the systems investigated, the adhesive force and charge on th e particles increase with particle diameter according to a power law w ith an exponent close to 2. Such dependence can be explained on the ba sis of the electrostatic nature of the adhesive forces. A double elect ric layer exists at the interface between the particles and the metal Surface. A calculation was made of the surface density of charge for t he polyvinyl chloride particle-steel system.