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Sonochemical coating technology as a universal method of surface modification and its application
|Bartosz Woźniak 1, Julia M. Rogowska-Tylman 2
1. Institute of High Pressure Physics, Polish Academy of Sciences (UNIPRESS), Sokołowska 29/37, Warsaw 01-142, Poland
Ultrasonic waves have many more applications than we can realise. In most of the cases we are using them for surface cleaning or dispersing of suspensions. Unexpected application of ultrasounds is coating of various materials with nanoparticles. It is possible due to cavitation phenomena. When cavitation bubble growth and collapse, shock waves which give high velocity for nanoparticles are generated. These nanoparticles are deposited on the surface and forming strong chemical and physical bond.
Ultrasound technology allows to create homogeneous layer on the titanium, ceramics or polymer surface. Process of coating is short time and temperature can be adjusted to the needs and the type of material and this method does not damage the surface. Nanolayers can be applied for UV protection, antibacterial coating or bone regeneration implants.
The speech summarizes the influence of coating with nanoparticles and possibilities of application in industry.
Presentation: Oral at Nano PL 2014, Symposium B, by Bartosz Woźniak
See On-line Journal of Nano PL 2014
Submitted: 2014-06-30 04:19 Revised: 2014-10-01 11:00