Open AccessРrospects of research development and new applications of concentrated artificial latexes
Author(s) -
В. Д. Кошевар,
В. Г. Шкадрецова,
Д. А. Бусел,
И. П. Кажуро
Publication year - 2019
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ hìmìčnyh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2342
pISSN - 1561-8331
DOI - 10.29235/1561-8331-2019-55-3-318-328
Subject(s) - wetting , polymer , materials science , emulsion , dispersion (optics) , colloid , chemical engineering , pickering emulsion , viscosity , interphase , nanotechnology , phase (matter) , stabilizer (aeronautics) , adsorption , particle (ecology) , nanoparticle , chemistry , composite material , organic chemistry , mechanical engineering , physics , oceanography , optics , geology , engineering , biology , genetics
The phenomenon of strong stabilization of concentrated aqueous dispersions (emulsions) of polymers by colloidal particles of organic nature (microparticles of synthetic latexes), not accompanied by a significant increase in effective viscosity, opened, firstly, the possibility of carrying out the processes of pigmenting them at low energy costs with a maximum yield (dynamic state, meets the conditions of intensification of heterogeneous chemical-technological processes) and, secondly, determined the directions of further research in this area. So, in contrast to the classical method of emulsion stabilization by mineral microparticles adsorbed directly on the surface of their droplets, microparticles of organic origin interact with them through an interlayer of the dispersion medium, localizing in the immediate vicinity of the dispersed phase and thus maintaining a high mobility of the interphase boundaries. In this regard, the proposed method for predicting the type of emulsions of polymers, taking into account the contact wetting angle and the wetting area of the surface of solid particles of a stabilizer with water and a polymer, requires further verification on various systems. The obtained data of fundamental importance also allowed us to propose new applications of stabilized concentrated artificial latexes for solving applied problems.