Title of article :
Superhydrophobic cotton fabric coating based on a complex layer of silica nanoparticles and perfluorooctylated quaternary ammonium silane coupling agent
Author/Authors :
Minghua Yu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
5
From page :
3669
To page :
3673
Abstract :
A superhydrophobic complex coating for cotton fabrics based on silica nanoparticles and perfluorooctylated quaternary ammonium silane coupling agent (PFSC) was reported in this article. The complex thin film was prepared through a sol–gel process using cotton fabrics as a substrate. Silica nanoparticles in the coating made the textile surface much rougher, and perfluorooctylated quaternary ammonium silane coupling agent on the top layer of the surface lowered the surface free energy. Textiles coated with this coating showed excellent water repellent property, and water contact angle (CA) increased from 1338 on cotton fabrics treated with pure PFSC without silica sol pretreatment up to 1458. The oil repellency was also improved and the contact angle of CH2I2 droplet on the fabric surface reached to 1318. In contrast, the contact angle of CH2I2 on the fabric surface treated with pure PFSC was only 1258.
Keywords :
Sol–gel , Perfluoroalkylated compound , Superhydrophobicity , Cotton fabrics
Journal title :
Applied Surface Science
Serial Year :
2007
Journal title :
Applied Surface Science
Record number :
1003385
Link To Document :
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