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Column of the Editor in Cheef. Meeting of the Editorial Board: Lines of the Improvement of the Journal – Reznichenko S.V. (P. 2)
Report on the meeting of the Editorial Board of the journal “Kauchuk I Rezina”
Key words: new politic of the journal, information, innovation
Effect of nano-sized modifications of titanium dioxide (titania) with anatase and η-TiO2 structures on structural parameters and properties of nanocomposites based on 1,2-polybutadiene – Kuzmicheva G.M., Yulovskaya V.D., Domoroschina E.N., Obolenskaya L.N., Ivshina A.G., Karpova S.G., Kopylova E.V.,. Savinkina E.V. (P. 6)
Effect of nano-sized modifications of titania (NST) prepared by sulfate technique (anatase and η-TiO2 ) and commercial Degussa P25 on properties of their composites with 1,2-polybutadiene (1,2PB) is studied by a complex of methods. Compositions were prepared by laboratory rolls. Curative group (sulfur, zinc oxide, stearic acid, dibenzothiazolylsulfide and tetramethyltiuramdisulfide) was introduced fist and then masterbutch of NST. The NST structure is shown to affect the degree of interaction between 1,2PB and titania. Effect of titania structure on the interaction between 1,2PB and titania is shown. Titania introduction results in decrease of glass transition temperature, i.e. extends the temperature range of the material working capacity.
Key words: 1,2-polybutadiene, nano-sized titanium dioxide (titania), X-Ray diffraction under large and small angles, IR-spectrometry, EPR, electron microscopy, DTA, sorption capacity, specific surface
Study of the Surface Morphology of Elastomers Modified by Gaseous Fluorine and its Effect on the Friction Properties – Nazarov V.G., Stolyarov V.P., Pyatov I.S., Maksimova Yu.A., Vasileva S.N., Mikhaleva L.A. (P. 12)
Effect of surface fluorination on the surface layer morphology of a number of rubbers under dry slip friction on steel, duralumin and bronze have been studied. The higher effect is shown for compounds based on butadiene-nitrile and ethylene-propylene rubbers. Surface fluorination results in a decrease of sliding friction coefficient due to the reducing of adhesive contact in a rubber-metal pair. The reducing could be from 2.5 to 20 times depending on the type of rubber.
Key words: rubbers, surface modification, fluorination, surface morphology, coefficient of sliding friction.
New Applications of Carbon Black. Increase of the Yield of the Soil – Razdyakonova G.I., Likholobov V.A., Berezin L.V., Khamova O.F. (P. 16)
The effect of physicochemical properties of carbon black of different dispersion characteristics on the composition of the soil micro flora was studied. Carbon black introduced into the soil was shown to stimulate an increase in the number of all groups of soil microorganisms during 15 – 20 days.
Keywords: carbon black, dispersion, soil, fertility, microorganisms
The New Efficient Oligomer Processing Oil for Tire Rubbers – Dumsky Yu.V., Butov G.M., Cherednikova G.F., Dumsky S.Yu., Kostrubina E.V., Kuznetsova N.A. (P. 20)
Data concerning synthesis of Pyroplast as processing oil for tire rubbers are presented. Advantages of Pyroplast are shown.
Keywords: polymerization, oligomer processing oil, tire rubbers, styrene-indene resin
Rhein Chemie Open in Russia Production of the Preddispersed Polymercombined Additives. Accept on Quality and Stability – Bitterlich M. (P. 22 )
Information about new plant in Lipetsk for series of polymercombined additives for rubbers, and their advantages is presented.
Keywords: preddispersed polymercombined additives, production
Effect of Organosilanes on the Properties of Rubbers Based on NBR ( BNKS-40AMN) and Silica Filler – Ovsyannikova D.V., Solov’eva O.Y., Solov’iev M.E., Luschitskaya E.A. (P. 24)
Effect of the product M-Retair 6940 containing bis(triethoxysilylpropyl) tetrasulfid and carbon N 330 (1:1) on the properties of raw and vulcanized rubbers based on NBR ( BNKS-40AMN) and containing silica filler Rosil-175 have been studied.
Key words: organosilanes, NBR, silica, vulcanization kinetics, viscoelastic properties, sol-fraction.
Fireproof Materials of Vulcanized Coating Based on Hetero-Organic Silicon Oligomers – Khelevina O.G. (P. 28)
Silicon oligomers modified by boron, aluminum and titanium are used as vulcanized coating of fireproof materials. Advantages in fireproof as well as physical and mechanical properties of these materials are shown.
Key words: hetero-organic silicon oligomers, vulcanized coating, fireproof textile materials, physical and mechanical properties
Durability of Construction Components of Elastomers of Low Compressibility – Kozub Y.G. (P. 32)
The method of determination of durability of elastomeric components based on energy criterion of destruction is presented. Non-linearity of deformation of low compressible material is considered.
Key words: durability, low compressibility, stress-strain state
Development, Investigation and Ways of Improvement of the Device for Waste Tyre Cutting –Veschev A.A., Sokolov A.E. (P. 36)
The results of theoretical and experimental investigation of the process of waste tire cutting with the use of improved annular cylinder knifes are presented.
Key words: recycling, tire, annular cylinder knife, friction force, calculation.
On Optimization of Injection Molding of Rubber Goods – Baranov A.V., Dakhin O.Kh. (P. 40)
Mathematical model of non-isothermal flow of rubber compounds is presented. Model takes into account all the main features of the injection molding process. An attempt is made to develop a methodology of optimizing of the injection phase of the molding on the basis of this model. The diagrams connecting the main technological parameters of the injection molding process have been developed.
Key words: mathematical modeling, injection molding, non-Newtonian fluid, non-isothermal flow, rubbers
Life Time Prediction of the Rubber Gasmask Facepieace –Reznichenko D.S. Sedov V.V. Jurtsev L.N. (P. 44)
Stress relaxation under penetration of the indenter in rubber gasmask facepieace was studied. The linear change of the relaxation constants in the course of the thermal aging is shown. The life-time prediction by relaxation measurement was under consideration.
Key words: rubber mask, heat-aging; penetration of the indenter, stress relaxation; life-time
From Rubbers to Rubber Goods: Specialized Forum in Expocenter. Part I –Reznichenko S.V., Morozov Yu.L., Konikova T.B. (P. 47)