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Durable and highly hydrophobic flax fabrics designing via “grafting to” method using catalysed hydrosilylation

Highly hydrophobic flax fabrics with durable properties were prepared via “grafting to” method for self-cleaning application. Flax fabrics were firstly functionalized with vinyl groups using 1,3-divinyltetramethyldisilazane (DVTS). Then, the vinyl functionalized flax fabrics were grafted by poly(hyd...

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Bibliographic Details
Published in:Surfaces and interfaces 2024-03, Vol.46, p.104166, Article 104166
Main Authors: Ishak, Antoine, Sonnier, Rodolphe, Otazaghine, Belkacem, Garay, Hélène, Longuet, Claire
Format: Article
Language:English
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Summary:Highly hydrophobic flax fabrics with durable properties were prepared via “grafting to” method for self-cleaning application. Flax fabrics were firstly functionalized with vinyl groups using 1,3-divinyltetramethyldisilazane (DVTS). Then, the vinyl functionalized flax fabrics were grafted by poly(hydromethylsiloxane-co-dimethylsiloxane) (PDMS-co-PHMS) via a hydrosilylation reaction using Karstedt catalyst, between Si-H groups present in PDMS-co-PHMS and vinyl groups present onto the vinyl functionalized flax fabrics. The prepared fabrics were characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), X-rays fluorescence, confocal laser scanning microscopy (CLSM) and tensile test. The modified fabrics displayed highly hydrophobic properties with contact angle (θ) about 147° ± 5 and a sliding angle (SA) of about 15° ± 2, making them ideal for practical self-cleaning applications. Furthermore, good durability with excellent washing resistance was also obtained for these fabrics. [Display omitted]
ISSN:2468-0230
2468-0230
DOI:10.1016/j.surfin.2024.104166