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Treatment of cotton fabrics by ionic liquid with PF6 − anion for enhancing their flame retardancy and water repellency

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Abstract

In the present study, we report a new process for modifying cellulosic fabrics by using ionic liquids. To this aim, 1-methylimidazolium chloride propyltriethoxysilane and 1-pyridinium chloride propyltriethoxysilane salts were synthesised. Then, the cotton fabrics were treated with sols containing these salts by the pad-dry-cure process. Finally, the treated fabrics were impregnated in a diluted solution of HPF6 to perform the metathesis reaction. The morphology and chemical composition of treated and untreated fabrics were analysed by scanning electron microscopy, elemental analysis and infrared spectroscopy. The droplet shape analysis confirmed that the water repellency of the fabrics was significant after surface modification. The flame retardancy was also enhanced by using the PF6 anion. Thermogravimetric analysis was used to assess the thermal stability of these treated fabrics in air.

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Acknowledgments

The authors gratefully acknowledge Campus France for the financial support through PHC Toubkal project no. 32506VM.

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Authors and Affiliations

  1. Laboratoire REMTEX, ESITH, Route d’El Jadida, km 8, Oulfa, BP 7731, Casablanca, Morocco

    Aicha Boukhriss & Omar Cherkaoui

  2. Laboratoire LIMAT, Avenue Cdt. Driss El Harti, Ben M’ Sik, BP 7955, Casablanca, Morocco

    Aicha Boukhriss & Said Gmouh

  3. Institut de Chimie de Clermont-Ferrand, UMR 6296 CNRS/UBP/SIGMA Clermont, Clermont Université, 24 avenue des Landais, BP 80026, 63171, Aubiere, France

    Aicha Boukhriss, Jean-Philippe Roblin & Damien Boyer

  4. Centre des matériaux avancés, Université Mohammed VI Polytechnique, Benguerir, Morocco

    Hassan Hannach

Authors
  1. Aicha Boukhriss
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  2. Said Gmouh
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  3. Hassan Hannach
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  4. Jean-Philippe Roblin
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  5. Omar Cherkaoui
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  6. Damien Boyer
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Correspondence to Said Gmouh or Damien Boyer.

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Boukhriss, A., Gmouh, S., Hannach, H. et al. Treatment of cotton fabrics by ionic liquid with PF6 − anion for enhancing their flame retardancy and water repellency. Cellulose 23, 3355–3364 (2016). https://doi.org/10.1007/s10570-016-1016-9

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  • DOI: https://doi.org/10.1007/s10570-016-1016-9

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