Short-chain fluorocarbon-based polymeric coating with excellent nonwetting ability against chemical warfare agents

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 34
  • Download : 0
The ongoing concerns and regulations on long-chain fluorinated compounds (C8 or higher) for nonwetting coatings have driven the market to search for sustainable alternative chemistries. In this study, a copolymeric coating containing short-chain fluorinated groups was synthesized to achieve excellent nonwetting ability against hazardous chemical warfare agents (CWAs). A copolymer of 1H,1H,2H,2H-perfluorooctyl methacrylate (PFOMA) and ethylene glycol dimethacrylate (EGDMA, crosslinker) was directly coated onto a textile fabric via initiated chemical vapor deposition. The p(PFOMA-co-EGDMA) coating shows a rough-textured morphology with a bumpy, raspberry-like structure leading to high contact angles (theta(water) > 150 degrees and theta(dodecane) = 113.8 degrees) and a small water shedding angle (<5 degrees). Moreover, the p(PFOMA-co-EGDMA) coating was further analysed for application in military fabrics: air permeability, tensile strength, and safety against toxic perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). Outstanding nonwetting was noticeably achieved against different CWAs, including bis(2-chloroethyl)sulfide (HD), pinacolyl methylfluorophosphonate (GD), and O-ethyl S-(2-diisopropylaminoethyl)methylphosphonothioate (VX) (theta(HD) = 119.1 degrees, theta(GD) = 117.0 degrees, and theta(VX) = 104.1 degrees). The coating retained its nano-structuration and nonwetting ability for water and n-dodecane despite being subjected to 250 cycles of Martindale abrasion and harsh chemicals (NaOH and HCl). The robustness and scalable straightforward preparation route of the coating make it an ideal approach for designing durable next-generation CWA nonwetting coatings for fabrics with favorable health and environmental properties.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2022-03
Language
English
Article Type
Article
Citation

RSC ADVANCES, v.12, no.13, pp.7773 - 7779

ISSN
2046-2069
DOI
10.1039/d1ra08326k
URI
http://hdl.handle.net/10203/292744
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0