Influence study of thermostabilizers on the properties of cellulose triacetates

Abstract

In the chemical and petrochemical industry, the primary focus for workers in the upcoming years is to develop innovative and secure technologies and equipment that comply with stringent quality standards. This imperative encompasses the production of materials, devices, and other products that meet the highest global benchmarks in technical and economic aspects. Emphasizing the implementation of progressive technologies and advanced production methods is crucial for achieving substantial improvements in labor productivity across all sectors of the national economy, with special attention paid to the chemical industry. This paper work presents the results of a study on increasing the thermal stability of cellulose triacetate by introducing stabilizers into its composition. Regularities of plasticization of cellulose triacetate with low- and high-molecular compounds have been established. As a result, the deterioration of the physical and mechanical properties of polymer materials processed at high temperatures occurs due to thermo-oxidative degradation, which leads to changes in the composition of the main polymer chain and a decrease in molecular weight. The application of stabilizers is proposed to prevent this process at high temperatures.

Relationship of copper-molybdenum and gold minering with magmatism

“…Under such conditions, increasing the efficiency of geological exploration is possible by improving the theoretical and methodological foundations of the conditions for the formation of endogenous industrial mineralization through the use of a set of new innovative technologies, analysis of the localization conditions of various types and industrial-genetic types of minerals. The study of hydrothermal mineralization manifested in the Dalny copper-molybdenum deposit (Kuraminsky ridge) and in gold deposits -Karakutan, Beshkuduk (Ziyaetdinsky ridge), Marjanbulak, Sarmich, Zarmitan and Guzhumsay (Nurata ridge-molybdenum) with a favorable combination of magmatic, metasomatic, lithological, geological-structural and other factors [5,[7][8][9]. Within ore fields, the presence of deep, enduring faults is notable, manifesting as a series of intricate and extensively branching fracture zones.…”

Chemical technology of oligomers production from homopolymer based on epichlorohydrin and morpholine

“…The study of kinetic regularities of self-polymerization of morpholine with epichlorohydrin was carried out by gravimetric method. To study the influence of the nature of solvents on the polymerization reaction of morpholine with epichlorohydrin, the process was carried out in solvents with different dielectric constant (benzene, acetone, ethanol, dimethylformamide) [13,14].…”

Technologies used in natural gas dehydration: Problems and solutions

“…Solid moisture absorbers: calcium chloride, caustic soda, activated aluminum oxide (aluminum gel, bauxite), silica gel, etc. alumogel is resistant to erosion, safe, mechanically and thermally strong, active and not scarce [7][8][9][10].…”