Abstract
In many industrial settings, films of polymers such as polypropylene (PP) and polyethylene terephthalate (PET) require surface treatment due to poor wettability and low surface energy. Here, a simple process is presented to prepare durable thin coatings composed of polystyrene (PS) core, PS/SiO2 core-shell, and hollow SiO2 micro/nanoparticles onto PP and PET films as a platform for various potential applications. Corona-treated films were coated with a monolayer of PS microparticles by in situ dispersion polymerization of styrene in ethanol/2-methoxy ethanol with polyvinylpyrrolidone as stabilizer. A similar process on untreated polymeric films did not yield a coating. PS/SiO2 core-shell coated microparticles were produced by in situ polymerization of Si(OEt)4 in ethanol/water onto a PS-coated film, creating a raspberry-like morphology with a hierarchical structure. Hollow porous SiO2-coated microparticles onto a PP/PET film were formed by in situ dissolution of the PS core of the coated PS/SiO2 particles with acetone. The coated films were characterized by E-SEM, FTIR/ATR, and AFM. These coatings may be used as a platform for various applications, e.g. magnetic coatings onto the core PS, superhydrophobic coatings onto the core-shell PS/SiO2, and solidification of oil liquids within the hollow porous SiO2 coating.
| Original language | English |
|---|---|
| Pages (from-to) | 11406-11413 |
| Number of pages | 8 |
| Journal | ACS Omega |
| Volume | 8 |
| Issue number | 12 |
| DOIs | |
| State | Published - 28 Mar 2023 |
Bibliographical note
Publisher Copyright:© 2023 The Authors. Published by American Chemical Society.
Funding
The authors thank Dr. Yuval Elias for meticulous editing of the manuscript and Eti Teblum for professional AFM analysis.