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Tailoring the Hydrophilicity for Delayed Condensation Frosting in Antifogging Coatings SCIE SCOPUS

Title
Tailoring the Hydrophilicity for Delayed Condensation Frosting in Antifogging Coatings
Authors
YOON, JONGSUNZhang, XiacongMIN, RYUKim, Won HeeIHM, KYU WOOKLEE, JEONG WOOKLi, WenLee, Hyomin
Date Issued
2022-08
Publisher
American Chemical Society
Abstract
In the last few decades, numerous studies have focused on designing suitable hydrophilic materials to inhibit surface-induced fog or frost under extreme conditions. As fogging and condensation frosting on a film involves molecular interaction with water prior to forming discrete droplets on the surface, it is essential to control the extent of a film to strongly bind with water molecules for antifogging coatings. While the water contact angle measurement is commonly used to probe the hydrophilicity of a film, it oftentimes fails to predict the antifogging and antifrosting performance as this value only reflects the wettability of a given surface to water droplet. In this work, a polysaccharide-based film composed of chitosan (CHI) and carboxymethyl cellulose (CMC) is used as the model system and oligo(ethylene glycol) (OEG) moieties are additionally introduced to study the effect of OEG moieties on antifogging and condensation frosting. We show that the film containing OEG-grafted CHI exhibits excellent frost-resistant capability due to the OEG moieties in the film that serve as active sites for water molecules to strongly interact in a nonfreezable state.
URI
https://oasis.postech.ac.kr/handle/2014.oak/113523
DOI
10.1021/acsami.2c07316
ISSN
1944-8244
Article Type
Article
Citation
ACS Applied Materials and Interfaces, vol. 14, no. 30, page. 35064 - 35073, 2022-08
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이정욱LEE, JEONG WOOK
Dept. of Chemical Enginrg
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