Abstracts

№1, 2007

Effect of Shungite on Vulcanization of Styrene-Butadiene Elastomers – Shershnev V.A., Selezneva M.A., Pyzhonkova V.V. (P. 2).

The activating action of shungite under vulcanization of unloaded styrene¬butadiene elastomers of both solution and emulsion polymerization have been studied. The level of stress strain properties of obtained elastomers is comparable with that obtained with the use of zinc oxide as an activator. The chemical network density of vulcanizates with shungite is less than that obtained with zinc oxide.

Peroxide Vulcanization of Hydrogenated Butadiene Acrylonitrile Rubber – Korovina Yu.V., Scherbina E.I., Dolinskaya R.M., Leizeronok M.E. (P. 4).

Kinetics of peroxide vulcanization of hydrogenated butadiene acrylonitrile rubber of 34% acrylonitrile (by Bayer company) and properties of obtained composition have been studied. Temperature dependencies of cross-link density (determined by swelling and values of Mooney constants) have maximums at 160–170 °С. Mechanical properties, including compression set, of rubber vulcanized at 160 °С, are also most favorable.

Thermo- and Oilresistance of Vulcanized Rubbers Based on Acryl Rubber – Rusetskii D.V., Scherbina E.I., Dolinskaya R.M., Leizeronok M.E. (P. 7 ).

Aging in oil of two rubber compounds based on acryl rubber have been studied. Effect of vulcanization system and oil aggressivity is shown by means of swelling, compression set, resilience, and electron microscopy. Recommendations about the use of rubbers of different composition in different oils are proposed.

An Element Composition of a Surface and Bulk of Elastomers Based on Butadiene Acrylonitrile Rubbers – Tashlykov I.S., Veres O.G. (P. 11).

Surface and bulk composition of three wide-spread technical rubbers based on butadiene acrylonitrile rubbers have been studied by means of Rutherford back scattering and computer modeling. For one of the rubbers surface content of sulfur is 4 times that of the bulk one, for two others is 12 and 13 times. Differences between surface and bulk contents of Zn and Ca are different for different rubbers (between 2 and 10 times) and determined by rubber composition.

On Compatibility of Resorcinol Formaldehyde Resin and Polyester Cord – Shmurak I.L. (P. 14).

Effect of molar ratio of formaldehyde to resorcinol on compatibility parameter β between resin and PET as well as bond strength between rubber and polyester cord have been studied. Compatibility is maximum (β is minimum) and bond strength is maximum at molar ratio nearly 1.6.

Effect of Climatic Factors on Properties of Electro Conductive Composition Based on Polyisoprene – Gul` V.E., Kirsh I.A., Zabulonov D.Yu. (P. 15).

Effect of moisture and temperature on oxidation and electrical properties of electro conductive composition based on polyisoprene have been studied. Aging under electrical field effects oxidation process. Maximal oxidation take place under cyclic change of temperature (±60 °С). Increase of conditioning time under climatic condition results in decrease of electro resistance. Minimum effect is under constant low temperature –60 °С.

To Possibility of Application of Nanodispersed Fillers of Different Nature in Elastomer Compositions – Goncharov V.M., Ershov D.V. (P. 16).

Reinforcement of styrene-butadiene rubber with different types of carbon and mineral fillers including fullerene has been studied and compared with effect of carbon black. Data about structure of different fillers is presented as well as physical and mechanical properties of rubber compounds and vulcanized rubbers of different fillers. Application of blends of nanodispersed fillers with active carbon blacks in water media is recommended.

To Application of Heterocyclic Nitroso Compounds as Modifiers of Elastomer Compositions – Goncharov E.V., Suboch G.A., Goncharov V.M. (P. 20).

Effect of heterocyclic nitroso compounds on vulcanization of isoprene rubbers has been studied. Improvement of adhesion and cohesion properties as well as aging resistance is shown. There are nearly no changes in mechanical properties. Application of modifiers as stabilizers is possible.

New Mineral Filler for General and Special Purpose Rubbers – Kurlyand S.K., Bykov E.A., Karlina I.A. (P. 22).

Effect of new mineral filler Mivoll on viscosity of rubber compounds and strength properties of vulcanized rubbers based on different types of rubbers have been studied. Decrease of viscosity and constant level or increase of strength even under high degree of loading is shown. The same effects are shown under the substitution of the part of carbon black on Mivoll. So application of Mivoll open unique possibilities to improve processing properties without decrease of the level of a strength properties of different rubbers.

Industrial Experience of the Use of Dispractol I – Disperser and Activator Based on Complex Zinc Compound – Puchkov A.F., Kablov V.F., Talbi E.V., Turenko S.V. (P 25).

Properties of technical rubber compounds based on blends of isoprene, butadiene and styrene¬butadiene rubbers obtained under laboratory conditions have been studied. Possibility to decrease of vulcanization time is shown. Tests of specimens cut out from tires produced with the use of Dispractol I suggest the laboratory results.

Increase of Efficiency of Application of Porous Oven Carbon Black by Means of Balk Electroheating – Khodakova S.Ya.,Anikeev V.N., Nikitin Yu.N. (P. 28).

Improvement of microstructure and suppression of oxidation as a result of preliminary bulk electroheating up to 1200 °С of porous oven carbon black is shown. The possibility to increase the efficiency of application of the heated carbon black in antistatic rubbers is proposed

On the Correctness of Application of Coefficient of Effective Viscosity to Calculation of Processing Parameters of Rubber Compounds in Pressure Region of Single¬Screw Extruders – Tatarnikov A.A., Burtelov L.V. (P. 29).

Different models of processing parameters of rubber compounds in pressure region of single-screw extruders have been compared. Application of coefficient of effective viscosity to calculation of these parameters results in errors in their values. Models based on power low considered as preferable.

Polymer Composition Material Based on the Blend of Urethane and Butadiene Acrylonitrile Rubbers – Fazylova D.I., Zenitova L.A., Khusainov A.D. (P. 32).

Process of covulcanization of urethane and butadiene acrylonitrile rubbers and different ways of processing of gasket composition materials filled with cork wastes have been studied. Material of best properties is recommended to the use in automotive and chemical industry.

III International Conference “Time of Polymers and Composites” – Zaikov G.E., Artsis M.I., Madyuskin N.N. (P. 35).

Review of papers presented at International Conference “Time of Polymers and Composites” (18 – 22.06.06, near by Naples, Italy)

VII International Conference “Bioantioxidant” – Zaikov G.E. (P. 36).

Review of papers presented at International Conference “Bioantioxidant” , organized by Institute of Chemical Physics by N. N. Semenov RAN and Institute of Biochemical Physics by N.M. Emanuel RAN (25,26.10.06., Moscow)

American Conference “Production of Rubber Hoses” – Yurovskaya I.S. (P. 37).

Review of papers presented at American Conference “Production of Rubber Hoses”, organized by Goodyear Tire & Rubber Co. and newspaper Rubber & Plastics News (13,14.06.06, near by Detroit, USA)

Conference in Ivanovo – Morozov Yu.L., Kuleznev V.N.(P. 39).

Review of papers presented on III All Russian (with international participation) annual Conference “Phisical Chemistry of Polymer Processing” (10 – 12.10.06. (Ivanovo, Russia)

XVII Symposium “Problems of Tire and Rubber/Cord Composites” – Veselov I.V., Gamlitskii Yu.A. (P. 40).

Review of papers presented on XVII Russian Symposium “Problems of tire and rubber/cord composites”, organized by NTC “NIIShP” with sponsor assistance by “Sibur¬ Russian Tire” (16 – 22.10.06, Boarding Hause “Berezki”, near Moscow).

The Pneumatic Tire – Bukhin B.L. (P. 42).

Review of the book edited by Alan N. Gent and Joseph D. Walter, (The University of Akron). Published on CD by U.S. Department of Transportation, National Highway Traffic Safety Administration. USA, 2006.