Journal of the Textile Institute· 2026Q2
Achieving durable liquid repellency on polyethylene terephthalate fabrics through fluorine-reduced electron beam-induced graft polymerization of 2-(perfluorohexyl)ethyl acrylate and stearyl acrylate
- 0citations
- Q2SCImago
- 2026year
Short summary
Graft polymerization of mixed fluorinated (FEA) and non-fluorinated (SA) monomers onto PET fabrics reduced surface fluorine content from 37.7% to as low as 1.3% (1:5 ratio), while maintaining high oil repellency (37.4° sliding angle for 5:1 FEA/SA) and improving durability after 10 washes (dodecane contact angle 68° for 5:1 FEA/SA vs. 65° for FEA alone).
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Key points
- Electron beam-induced graft polymerization of mixed FEA and SA monomers was used to modify PET fabrics.
- Surface fluorine content was reduced from 37.7% (FEA alone) to 1.3% (1:5 FEA/SA ratio).
- The 5:1 FEA/SA ratio achieved a low sliding angle of 37.4°, indicating enhanced oil repellency.
- Durability was improved, with the 5:1 FEA/SA ratio showing a smaller decrease in dodecane contact angle after 10 washes compared to FEA alone.
AI-generated from the title and abstract; the full text is not read.
Abstract
Fluorinated coatings impart excellent liquid repellency but often lack durability against washing and abrasion, and growing concerns regarding PFAS have intensified the need for fluorine‑reduced alternatives. This study presents a sustainable strategy for modifying polyethylene terephthalate (PET) fabrics through electron beam (EB)-induced graft polymerization using mixed fluorinated and non‑fluorinated monomers. When 2‑(perfluorohexyl)ethyl acrylate (FEA) and stearyl acrylate (SA) were applied at 0.1 mol/L, X‑ray photoelectron spectroscopy revealed that surface fluorine content decreased from 37.7% for FEA alone to 35.5% (5:1), 28.3% (7:3), 16.7% (1:1), 3.8% (3:7), and 1.3% (1:5), reaching 0% for SA. Increasing SA also reduced the static dodecane contact angle from 94° to nearly 0°, whereas the FEA/SA (5:1) composition exhibited the lowest sliding angle (37.4°), demonstrating enhanced oil repellency. After 10 washing cycles, the dodecane contact angle decreased from 94° to 65° for FEA and from 75° to 68° for FEA/SA (5:1), confirming improved durability.
The authors' abstract, as published at the source. Journal of the Textile Institute, 2026 · DOI ↗
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Field: Surfaces, Coatings and Films
Surfaces, Coatings and FilmsMaterials Science