CONTENTS of journal "Promyshlennoye proizvodstvo i ispol'zovaniye elastomerov" ("INDUSTRIAL PRODUCTION AND USE OF ELASTOMERS") 2•2021 (Russia)
ONCE AGAIN ABOUT CIS-1.4-POLYISOPRENE RUBBER (pp. 3-9)
Zolotarev Valentin L., Levenberg Igor P., Zuev Anton A., Kovaleva Lyudmila A., Lyusova Lyudmila R., Lipatova Anna A.,
Zolotarev Valentin L., Cand.Sci (Chem.). LLC «Macrochem-R», Russia
Levenberg Igor P., LLC «Macrochem», Poland
Zuev Anton A., MIREA-Russian Technological University, Russia
Kovaleva Lyudmila A., Cand.Sci (Tech.), Docent. MIREA-Russian Technological University, Russia
Lyusova Lyudmila R., Dr Sci (Tech.), Prof., MIREA-Russian Technological University, Russia
Lipatova Anna A., LLC «Macrochem-R», Russia
The comparison of Mooney viscosity and cohesive strength of rubber compounds based on synthetic isoprene rubbers obtained using «titanium», «neodymium» and «gadolinium» catalysts and natural rubber RSS1 and RSS20 was made.
KEYWORDS: natural rubber, synthetic isoprene rubber, Ziegler–Natta catalyst, carbon black, Mooney viscosity, cohesive strength, unvulcanized compounds.
For citation: Zolotarev V.L., Levenberg I.P., Zuev A.A., Kovaleva L.A., Lyusova L.R., Lipatova A.A. Once again about cis-1.4-polyisoprene rubber. Prom. Proizvod. Ispol’z. Elastomerov, 2021, no. 2, pp. 3-9. DOI: 10.24412/2071- 8268-2021-2-3-9. (In Russ.).
STATISTICAL THERMODYNAMICS OF POLYMER MELTS.
I. LATTICE MODEL AND NUMBER OF CONFIGURATIONS (pp. 10-15)
The features of the lattice model and its application to describe the properties of polymer -low-molecular-weight solvent systems are considered. Methods for obtaining the number of configurations of macromolecules according to the Flory, Huggins and Guggenheim approximations are analyzed. The advantages and disadvantages of each approximation are shown. A comparative analysis of approximation predictions is carried out, the most promising approximation is determined.
KEYWORDS: statistical thermodynamics, polymer melts, lattice model, number of configurations, Flory-Huggins approximation.
For citation: Skorodumov V.F. Statistical thermodynamics of polymer melts. I. Lattice model and number of configurations. Prom. Proizvod. Ispol’z. Elastomerov, 2021, no. 2, pp. 10-15. DOI: 10.24412/2071-8268-2021-2-10- 15. (In Russ.).
TECHNOLOGY AND PROCESSING OF POLYMERS AND COMPOSITES
INFLUENCE OF BUTYL RUBBER ON THE PROPERTIES OF RUBBER COMPOUND BASED ON BUTADIENE-METHYLSTYRENE RUBBER (pp. 16-18)
Egorov Evgeniy N., Ushmarin Nikolay F., Aleksandrova Nataliya V., Kol’tsov Nikolay I.,
Egorov Evgeniy N., Cand. Sci (Chem), Chuvash State University, Cheboksary, Russia
Ushmarin Nikolay F., Cand. Sci (Tech.), Cheboksary Production Association named V.I. Chapaev, Cheboksary, Russia
Aleksandrova Nataliya V., Chuvash State University, Cheboksary, Russia
Kol’tsov Nikolay I., Dr Sci (Chem), Chuvash State University, Cheboksary, Russia
The article investigates the effect of butyl rubber BK-1675 on the rheometric properties of the rubber compound, the physical and mechanical and dynamic indicators of rubber based on butadiene-methylstyrene rubber SKMS-30ARK. It has been established that the partial replacement of SKMS-30ARK with butyl rubber BK-1675 leads to a change in the kinetic parameters of the vulcanization process of the rubber mixture, a decrease in the difference between its maximum and minimum torques, and, as a result, a decrease in the degree of chemical crosslinking of the vulcanizates. A vulcanizate of a rubber mixture containing a combination of rubber SKMS-30ARK and BK-1675 is characterized by the lowest values of physical and mechanical properties (conditional tensile strength, elongation at break, hardness and tear resistance) and the largest tangent of the angle of mechanical losses.
KEYWORDS: butadiene-methylstyrene rubber, butyl rubber, rubber compound, rheometric, elastic-strength and dynamic properties.
For citation: Egorov E.N., Ushmarin N.F., Aleksandrova N.V., Kol’tsov N.I. Influence of butyl rubber on the properties of rubber compound based on butadiene-methylstyrene rubber. Prom. Proizvod. Ispol’z. Elastomerov, 2021, no. 2, pp. 16-18. DOI: 10.24412/2071-8268-2021-2-16-18. (In Russ.).
MODIFICATION OF COMPOUNDS BASED ON ETHYLENE–PROPYLENE–DIENE RUBBERS USING AN WATER-GENERATING ADDITIVES TO PROTECT THERMAL AGEING (pp. 19-25)
Vu Manh Hung., Gaidadin A.N., Petryuk I.P., Pham Kim Dao., Klyuchnikov O.R.,
Vu Manh Hung., Volgograd State Technical University, Russia
Gaidadin A.N., Volgograd State Technical University, Russia
Petryuk I.P., Cand. Sci.(Tech.), Kostroma State Agricultural Academy, Russia
Pham Kim Dao., Ph.D., Institute of Propellants and Explosives, Vietnam
Klyuchnikov O.R., Kazan National Research Technological University, Russia
The effectiveness of water-generating additives, consisting of multi-atomic alcohols or mineral hydroxides and boric acid, has been shown in the creation of elastomer materials for high-temperature operating conditions. The possibility of regulating the working capacity by varying the content of water released during heat exposure and the accumulation of boron-containing compounds in the elastomer matrix, capable of acting as high-temperature stabilizers of compositions based on ethylene-propylene rubber, has been established.
KEYWORDS: ethylene-propylene-diene rubber, EPDM, composition, water-generating additive, properties, thermal ageing.
For citation: Vu Manh Hung, Gaidadin A.N., Petryuk I.P., Pham Kim Dao, Klyuchnikov O.R. Modification of compounds based on ethylene–propylene–diene rubbers using an water-generating additives to protect thermal ageing. Prom. Proizvod. Ispol’z. Elastomerov, 2021, no. 3, pp. 34-40. DOI: 10.24412/2071-8268-2021-3-34-40. (In Russ.).
DEVELOPMENT OF THE TECHNOLOGY OF CONTROLLED WASTEWATER TREATMENT FROM SULFONATED ANIONIC SURFACTANTS FOR THE PRODUCTION OF BUTADIENE-NITRILE RUBBERS (pp. 26-29)
Papkov V.N., Yuriev A.N., Rodnyansky D.A., Zharkikh T.P., Skachkov A.M.,
Yuriev A.N., Cand. Sci.(Chem..),Voronezh branch FSUE NIISK, Voronezh, Russia
Rodnyansky D.A., Voronezh branch FSUE NIISK, Voronezh, Russia
Zharkikh T.P., Voronezh branch FSUE NIISK, Voronezh, Russia
Skachkov A.M., Voronezh branch FSUE NIISK, Voronezh, Russia
The technology of controlled wastewater treatment from sulfonated anionic surfactants (APAV) for the production of butadiene-nitrile rubbers has been developed. To bind APAV, a synthetic polyamine coagulant Polydadmac is used in the amount of 17-28 kg per 1 ton of rubber. Wastewater treatment is carried out at a temperature of 50 ±5°C for 30 to 45 min. The purification control is carried out by changing the supplied amount of Polydadmac and sulfuric acid solutions, so that the mass ratio of APAV : Polydadmac is 1,0:(0,38-0,48) and the pH of the wastewater is 4,0 ±0,5.
KEYWORDS: butadiene-nitrile rubbers, wastewater treatment, anionic surfactants.
For citation: Papkov V.N., Yuriev A.N., Rodnyansky D.A., Zharkikh T.P., Skachkov A.M. Development of the technology of controlled wastewater treatment from sulfonated anionic surfactants for the production of butadiene-nitrile rubbers. Prom. Proizvod. Ispol’z. Elastomerov, 2021, no. 2, pp. 26-29. DOI: 10.24412/2071-8268-2021-2-26- 29. (In Russ.).
SOCAR – BP PARTNERSHİP: ACG GAS FLARING REDUCTION PROJECT (pp. 30-32)
Abdullayev R., Birrel Q., Huseynzade R.,
Abdullayev R., SOCAR, Baku, Azerbaijan Republic
Birrel Q., BP, London, Great Britain
Restoration of the environment is a key priority for the Government of Azerbaijan, together with all areas of social and economic life of the country. At present as well as in all other areas SOCAR and BP keep constantly the spotlight on environmental protection as a global issue and is cooperating with each other since 2008 in gas flaring reduction in frame of the World Bank’s GGFR partnership. In 2011 with the purpose of gas flaring reduction In terms of this partnership Joint Working Group between SOCAR and BP was composed of and a number of actions in direction of flaring reduction have been implemented in ACG field by this Group. As an initial flaring value for baseline scenario of the project was taken an average value of 4% of associated gas flared in 2010-2011. In 2012 in the framework of the mentioned project, it was developed an improvement plan aimed to reduce flaring gas volume. As a result of the implementation of the plan, the volume of the flared gas was reduced from 4% (baseline scenario) to 2 %. In 2019 it was achieved 0.9%. This project resulted in gas flaring reduction, low-pressure gas gathering, and transportation through existing infrastructure, delivering gas to consumers, efficient use of the energy resources and improvement of consumers’ access to energy.
KEYWORDS: Project, Partnership, Environmental, Associated gas, Gas flaring reduction.
For citation: Abdullayev R., Birrel Q., Huseynzade R. SOCAR – BP PARTNERSHİP: ACG GAS FLARING REDUCTION PROJECT. Prom. Proizvod. Ispol’z. Elastomerov, 2021, no. 2, pp. 30-32. DOI: 10.24412/2071-8268- 2021-2-30-32. (In Russ.).
FIBERS FROM NATURAL RAW MATERIALS. PAST, PRESENT AND FUTURE (pp. 33-39)
Teptereva G.A., Belgorodsky V.S., Chetvertneva I.A., Pakhomov S.I., Sevastyanova M.V., Movsumzade E.M., Chuyko E.V.,
Teptereva G.A., Dr. Sci. (Tech.), Ufa State Oil Technical University, Ufa, Russia
Belgorodsky V.S., Dr. Sci. (Sociol.), Prof., Rector, Russian State University. A.N. Kosygina (Technology. Design. Art), Moscow, Russia
Chetvertneva I.A., SBM Service Center LLC, Volga-Ural region, Moscow, Russia
Pakhomov S.I., Dr. Sci. (Chem.), Prof., Ministry of Science and Higher Education of the Russian Federation, Moscow, Russia
Sevastyanova M.V., Scientific Consultant, Obrakademnauka LLC, Moscow, Russia
Movsumzade E.M., Corresponding Member Russian Academy of education, Dr. Sci. (Chem.), Prof. Ufa State Oil Technical University, Ufa, Russia
Chuyko E.V., State University of Management, Moscow, Russia
The textile industry is a historical industry for Russia. Once upon a time, linen manufactories were one of the engines of Russia’s industrial development. The textile industry has changed its structure. Currently, depending on the raw materials used, cotton, wool, silk, linen sub-sectors and the production of non-woven materials (artificial fibers) are distinguished. A promising direction in the textile industry is also the production of innovative linen materials for various applications -composites, medical and sanitary and hygienic products, non-woven materials, linen and cotton wool, geotextiles, building insulation, insulating materials, clothing, household and technical linen fabrics, as well as dual-use products for the military-industrial complex. The review presents an analysis of the centuries-old history of the technology for the production and use of fibers from natural raw materials.
KEYWORDS: fiber, linen, cotton, wool, silk, textiles.
For citation: Teptereva G.A., Belgorodsky V.S., Chetvertneva I.A., Pakhomov S.I., Sevastyanova M.V., Movsumzade E.M., Chuiko E.V. Fibers from natural raw materials. Past, present and future. Prom. Proizvod. Ispol’z. Elastomerov, 2021, no. 2, pp. 33-39. DOI: 10.24412/2071-8268-2021-2-33-39. (In Russ.).
HONORED MENDELEEVETS, THE FAMOUS SCIENTIST AND EXPLORER (pp. 40-41)
NEWS. MESSAGES (pp. 42-44)