, Volume 20, Issue 1, pp 355–364 | Cite as

Hydrorepellent finishing of cotton fabrics by chemically modified TEOS based nanosol

  • Monica Periolatto
  • Franco Ferrero
  • Alessio Montarsolo
  • Raffaella Mossotti
Original Paper


Hydrorepellency was conferred to cotton fabrics by an hybrid organic-inorganic finishing via sol-gel. The nanosol was prepared by co-hydrolysis and condensation of tetraethoxysilane (TEOS) and 1H,1H,2H,2H-fluorooctyltriethoxysilane (FOS), or hexadecyltrimethoxysilane (C16), as precursors in weakly acid medium. The application on cotton was carried out by padding with various impregnation times, followed by drying and thermal treatment, varying the FOS add-on from 5 till 30 % on fabric weight or C16 add-on from 5 to 10 %. Treated samples were tested in terms of contact angles, drop absorption times, washing fastness and characterized by SEM, XPS and FTIR-ATR analyses. In the case of FOS modified nanosol applied with an impregnation time of 24 h or C16 modified nanosol, water contact angles values very close or even higher than 150° were measured, typical of a superhydrophobic surface. The application of the proposed sol-gel process yielded also a satisfactory treatment fastness to domestic washing, in particular for FOS modified nanosol.


Sol-gel Nanosol Cotton Hydrophobicity Hybrid alkoxides 


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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Monica Periolatto
    • 1
  • Franco Ferrero
    • 1
  • Alessio Montarsolo
    • 2
  • Raffaella Mossotti
    • 2
  1. 1.Dipartimento di Scienza Applicata e TecnologiaPolitecnico di TorinoTurinItaly
  2. 2.CNR ISMACIstituto per lo Studio delle MacromolecoleBiellaItaly

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