FIELD: textile industry.
SUBSTANCE: invention relates to treatment of textile materials. Method to improve water-repellent properties of felt materials consists in treatment of felt material in suspension alcohol-nanopowder hydrophobic silicon dioxide of Wacker HDK N20 grade (Germany) under the effect of acoustic cavitation in ultrasonic bath. Ethyl alcohol is used which is a low-polarity organic solvent.
EFFECT: invention provides material hydrophobicity, characterised by limiting the water wetting angle value not less than by 120°, this method is easy, technologically effective, safe and does not require large material or energy costs.
3 cl, 1 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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| METHOD OF AUTOMOTIVE CATALYST | 2011 |
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