Pull-off and friction forces of micropatterned elastomers on soft substrates: the effects of pattern length scale and stiffness.

ABSTRACT: The adhesiveness of biological micropatterned adhesives primarily relies on their geometry (e.g., feature size, architecture) and material properties (e.g., stiffness). Over the last few decades, researchers have been mimicking the geometry and material properties of biological micropatterned adhesives. The performance of these biomimetic micropatterned adhesives is usually tested on hard substrates. Much less is known about the effect of geometry, feature size, and material properties on the performance of micropatterned adhesives when the substrate is deformable. Here, micropatterned adhesives of two stiffness degrees (Young's moduli of 280 and 580 kPa) were fabricated from poly(dimethylsiloxane) (PDMS) and tested on soft poly(vinyl alcohol) (PVA) substrates of two stiffness degrees (12

SUBMITTER: van Assenbergh P 

PROVIDER: S-EPMC6334791 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature