1 research outputs found
Strong van der Waals Adhesion of a Polymer Film on Rough Substrates
We
propose that chemically inert polymeric films can enhance van
der Waals (vdW) forces in the same way as nanofabrication of biomimetic
adhesive materials. For the vdW adhesion of an ethylene-chlorotrifluoroethylene
(ECTFE) film on rough metal and dielectric substrates, we present
a model that combines microscopic quantum-chemistry simulations of
the polymer response functions and the equilibrium monomer–substrate
distance with a macroscopic quantum-electrodynamics calculation of
the Casimir force between the polymer film and the substrate. We predict
adhesive forces up to 2.22 kN/mm<sup>2</sup>, where the effect is
reduced by substrate roughness and for dielectric surfaces