Pressure-sensitive adhesive liquid marble: Fabrication and characterization of structure and adhesive property

Abstract

Pressure-sensitive adhesive (PSA) powder consists of millimeter-sized particles with a soft sticky polymer core and a hard solid nanoparticle shell morphology (adhesive liquid marbles), and shows no adhesion in its original form and flows like a powder through a funnel. Only after application of external mechanical stress, it acts as an adhesive. Adhesion can be induced by rupture of the nanoparticle coating of the liquid marble and outflow of the inner soft polymer. This article gives an exposition of fabrication and characterization of surface structure/chemistry, morphology and adhesive properties of PSA powder and adhesive liquid marble.