Publisher DOI: 10.1039/d0sm00252f
Title: Controlling the drying-induced peeling of colloidal films
Language: English
Authors: Osman, Abdulkadir 
Goehring, Lucas 
Stitt, Hugh 
Shokri, Nima 
Issue Date: 28-Sep-2020
Source: Soft matter 36 (16): 8345-8351 (2020-09-28)
Journal or Series Name: Soft matter 
Abstract (english): In this work, we investigated the effect of the suspension properties on the drying dynamics and the resulting film peeling instability. To do so, a comprehensive series of experiments were conducted using drops of aqueous mixtures of colloidal silica dispersions and polyethylene oxide (PEO) additives. Time-lapse digital microscope images of the evaporating droplets show that film peeling can be discouraged and eventually eliminated with an increase in PEO concentration and molecular weight. This is due to the additives modifying the suspension properties which in turn modify the drying front length across the evaporating surface. Our result extends the understanding of the physics of film failure which is relevant information for various industrial processes such as in inkjet printing and coating applications.
ISSN: 1744-6848
Institute: Geohydroinformatik B-9 
Type: (wissenschaftlicher) Artikel
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