Slippery or sticky ! Control of wrinkling patterns by selective adhesion

TL;DR

This paper investigates how the adhesion properties at the polymer/substrate interface influence wrinkling patterns, demonstrating control over orientation and amplitude through boundary condition modifications.

Contribution

It extends existing theoretical models to include adhesive and slippery boundary conditions, explaining how interface properties affect wrinkling behavior.

Findings

Selective wrinkle orientation achieved

Amplitude control demonstrated

Theoretical models expanded for specific boundary conditions

Abstract

Wrinkling patterns at the metallized surface of thin polymer films are shown to be sensitive to the sticky or slippery character of the polymer/substrate interface (titanium coating, polystyrene film and coated silicon substrate). Selective prefered wrinkle orientation and amplitude are achieved. Existing theoretical models are expanded to specific boundary conditions (adhesive vs slippery) and rationalize these observations.