About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Stroganov V.F. – doctor of chemical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Amelchenko M.O. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Usmanov R.A. – candidate of technical science, associate professor Kazan National Research Technological University The organization address: 420015, Russia, Kazan, K. Marks st., 68 |
| Title of the article | Influence of ultrasonic processing of a kaolin on its dispersion and sorption properties |
| Abstract. | In article influence of ultrasonic treatment of kaolin used in paint and varnish industry on its key physical parameters is studied. It is established that influence of an ultrasonic wave (20 kHz, 1000 W, amplitude of 100 microns) within 10 minutes in the water environment allows to reduce the average size of particles of a kaolin from 30 microns to 8 microns. Besides, processing of a filler ultrasound causes emergence of the second peak, near nanodimensional area which is observed after 3 minutes of ultrasonic treatment, and continues growth, both in a percentage ratio, and in the dimensional range. Further supervision over the second peak showed its disappearance after endurance of the activated filler within 7 days that is caused by aggregation of particles because of change of size of their free surface energy (the average size of particles after aggregation ? 10 microns). Research of sorption properties of a filler showed increase, both physical, and chemical sorptions. Absorption by the activated kaolin of moisture makes ~ 18-20 %, and hydraulic activity increases by 13 times that defines rules of storage of the activated kaolin – in hermetically closed container. |
| Keywords. | filler kaolin, ultrasound treatment, activation, water-borne paints. |
| For citations: | Stroganov V.F., Amelchenko M.O., Usmanov R.A. Influence of ultrasonic processing of a kaolin on its dispersion and sorption properties // Izvestiya KGASU. 2015. №3(33) P.147-152. |
