most of the procedures for making hydrophobic and oleophobic coatings for fabric are multi-step and mainly need ultrasonication... how to make them simpler for industral purposes for example by spray application that needs only hot air for example with the help of hairdrier...
I would suggest to explore the possibilities of sol-gel methods:
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7938775
http://www.jeffjournal.org/papers/Volume9/%282%29%20S.%20Saleemi%20V9I4.pdf
https://www.researchgate.net/publication/225118006_Hydrophobicity_modification_of_woven_cotton_fabric_by_hydrofobic_fumed_silica_coating._J_Sol-Gel_Sci_Technol
https://ortus.rtu.lv/science/lv/publications/15435/fulltext.pdf
https://www.utwente.nl/ctw/efsm/advanbiotex/excellenceteam/btomsic/proceedings3.pdf
Apparently there are much more. You can find several further references using Google and the following keywords: sol gel fabric coating silica
Best regards Gyorgy
Article Hydrophobicity modification of woven cotton fabric by hydrop...
Even if you do not go for ultrasonication, you can bind nano silica by using binders. But it depends upon your fabric type and nature of bonding required.
Although a detail review is under processing, yet you can read provisional pdf online here
http://www.hindawi.com/journals/jnt/aip/104142/
You can bind nano silica by using binders. But it depends upon your fabric type and nature of bonding required.
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