DEVELOPMENT OF DISPERSION TECHNOLOGY FOR PRODUCING HYDROGELS, SUSPENSIONS AND PIGMENT PASTES, PROVIDING FUNCTIONAL PROPERTIES OF THE MATERIAL
Journal: HERALD OF TECHNOLOGICAL UNIVERSITY
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
NIC Kurchatovskiy institut
(Kurchatovskiy Kompleks Fiziko-Himicheskih Tehnologiy, zam. rukovoditelya po tehnologicheskim processam i apparatam)
D.Mendeleyev University of Chemical Technology of Russia (kafedra informacionnyh komp'yuternyh tehnologiy, professor)
Moscow, Moscow, Russian Federation
D.Mendeleyev University of Chemical Technology of Russia (kafedra informacionnyh komp'yuternyh tehnologiy, professor)
Moscow, Moscow, Russian Federation
2.
NIC Kurchatovskiy institut
(Kurchatovskiy Kompleks Fiziko-Himicheskih Tehnologiy, veduschiy ekspert-nastavnik)
Moscow, Russian Federation
Moscow, Russian Federation
3.
Kurchatovskiy Kompleks Fiziko-Himicheskih Tehnologiy, NIC «Kurchatovskiy institut»
4.
Kurchatovskiy Kompleks Himicheskih Issledovaniy (IREA), NIC «Kurchatovskiy institut»
5.
Kurchatovskiy Kompleks Himicheskih Issledovaniy (IREA), NIC «Kurchatovskiy institut»
6.
Kazan National Research Technological University
Kazan, Russian Federation
Kazan, Russian Federation
Type:
Article
Pages:
from 36
to 43
Status:
Language:
Russian
Keywords:
HYDROGEL MATERIAL, POLYACRYLAMIDE, INORGANIC FILLERS, LUMINOPHORES, PROTECTIVE MARKERS, POLYMERIZATION, COMPLEX INSTALLATION, MICROPHOTOGRAPHS, AGRICULTURAL TECHNOLOGY, MEDICINAL PREPARATIONS, GRANULOMETRIC COMPOSITION
Abstract:
At present, the technology of obtaining a composite hydrogel material in the form of an aqueous suspension is used in various industries. The issue of grinding a hydrogel material in an aqueous medium with obtaining an aqueous suspension of particles with the required particle size distribution is considered. Polyacrylamide polymer was selected as a composite hydrogel material, and anti-Stokes phosphors of various brands were used as a filler. A method for obtaining a composite hydrogel material, as well as a complex installation for its implementation, was developed. The installation includes a reactor with a set of mixing devices, high-speed toothed and knife cutters, as well as a special dispersion unit, including a pump and a two-zone disperser. Data on the study of the effect of process and mode parameters of the equipment used on the granulometric composition of the resulting hydrogel material are presented. The effect of the quality of the resulting hydrogels on the rotation speed of the disperser on the dispersion time and the hydrogel to water ratio was revealed. Suspensions with a narrow granulometric composition with a particle diameter of 1300 to 200 μm are obtained. Microphotographs of a composite material based on polyacrylamide hydrogel and an inorganic luminophore are presented. The authenticity of the obtained protected paper is visually confirmed due to clearly distinguishable luminescent dots of a greenish-yellow color. When examining the paper against the light and in reflected rays, particles of the polymer network of the material are not visually detected. The mechanism for introducing the composite material into paper on a paper-making machine is described. A description of the technology for obtaining a suspension of hydrogel material in a single technological cycle is given.
At present, the technology of obtaining a composite hydrogel material in the form of an aqueous suspension is used in various industries. The issue of grinding a hydrogel material in an aqueous medium with obtaining an aqueous suspension of particles with the required particle size distribution is considered. Polyacrylamide polymer was selected as a composite hydrogel material, and anti-Stokes phosphors of various brands were used as a filler. A method for obtaining a composite hydrogel material, as well as a complex installation for its implementation, was developed. The installation includes a reactor with a set of mixing devices, high-speed toothed and knife cutters, as well as a special dispersion unit, including a pump and a two-zone disperser. Data on the study of the effect of process and mode parameters of the equipment used on the granulometric composition of the resulting hydrogel material are presented. The effect of the quality of the resulting hydrogels on the rotation speed of the disperser on the dispersion time and the hydrogel to water ratio was revealed. Suspensions with a narrow granulometric composition with a particle diameter of 1300 to 200 μm are obtained. Microphotographs of a composite material based on polyacrylamide hydrogel and an inorganic luminophore are presented. The authenticity of the obtained protected paper is visually confirmed due to clearly distinguishable luminescent dots of a greenish-yellow color. When examining the paper against the light and in reflected rays, particles of the polymer network of the material are not visually detected. The mechanism for introducing the composite material into paper on a paper-making machine is described. A description of the technology for obtaining a suspension of hydrogel material in a single technological cycle is given.
Keywords:
HYDROGEL MATERIAL, POLYACRYLAMIDE, INORGANIC FILLERS, LUMINOPHORES, PROTECTIVE MARKERS, POLYMERIZATION, COMPLEX INSTALLATION, MICROPHOTOGRAPHS, AGRICULTURAL TECHNOLOGY, MEDICINAL PREPARATIONS, GRANULOMETRIC COMPOSITION
HYDROGEL MATERIAL, POLYACRYLAMIDE, INORGANIC FILLERS, LUMINOPHORES, PROTECTIVE MARKERS, POLYMERIZATION, COMPLEX INSTALLATION, MICROPHOTOGRAPHS, AGRICULTURAL TECHNOLOGY, MEDICINAL PREPARATIONS, GRANULOMETRIC COMPOSITION
