Abstracts

№4, 2008

Interconnection between Temperature Dependence of Mechanical Loss Tangent and Internal Characteristics of Tread Rubbers of Different Composition – Pichugin A.M., Stepanova L.I., Scherbakov Yu.V. (P. 2).

Mechanical loss tangent tgδ of tread rubbers based on styrene butadiene rubbers of different types, filled with carbon black and silica have been measured at temperatures –10 – +60°C and frequency 5 hz under deformation amplitude 5% and static compression deformation 20%. Effect of rubber structure and tread rubbers composition on temperature dependence of tgδ is shown. The data obtained open the possibility to understand the effect of these parameters on rolling resistance, ice and wet traction.

Quantum Chemical Simulation and Prediction of Structure and Activity of Free Radicals and Biradicals of Diafen FP and DPPD – E. A. Mukhutdinov, A.A. Mukhutdinov (P. 6).

Quantum chemical simulation of molecules of diaphen FP (santoflex IP) and DPPD is presented and energy of radicals formation calculated. Activity of radicals is predicted and some elements of understanding the nature of synergism in tire rubbers added.

Aging and Stabilization of Polymers. Who is in Need in it? Historical Aspect – Zaikov G.E. (P. 10).

Historical review of the problem of polymer aging and stabilization. In particular its development in Russia.

Effect of Liberated Energy Density on Rubber Coat Formation under Ion Assisted Deposition of Thin Films – Tashlykov I.S., Veres O.G. (P. 13).

Effect of energy density liberated in cascade of atomic collisions on structure of thin films deposited on the surface of rubber has been studied. Distribution of atoms in films, adhesive contact between the deposited film and rubber as well as shape of break surface is presented.

Mechanochemical Activation of Natural Zeolites as A Method to Produce Polyfunctional Rubber Modifiers – Petrova N.N., Portnyagina V.V. (P. 17).

Properties of zeolites activated mechanochemically in special mill have been studied by means of IR spectroscopy, X Ray diffraction and dynamic light scattering. Decrease of particles dimensions and increase of amorphous phase content is shown. Rubber compound based on butadiene acrylonitrile and propyleneoxide rubbers of better oil  and froze resistance and lower compression set were developed and recommended. Activated zeolites are considered as polyfunctional rubber modifiers.

Properties of Shungite Fillers of Different Deposits and Their Effect on Rubber Properties – Tolstova O.N., Pichugin A.M., Kosso R.A., Titova T.V. (P. 22).

Physical chemical properties of shungite fillers from Karelian’s and Kazahstan’s deposits have been studied and compared. Properties of standard rubber composition based on styrene butadiene and isoprene rubbers with shungite were also studied.

The Use of New Shungit Fillers in Production of Technical Rubber Goods – Ushmarin N.F., Koltsov N.I. (P. 26).

The possibility of the use of the new shungit fillers of different beds in amount from 10 ?? 100 phr in different rubber compounds have been studied. The properties of compounds for technical rubber goods are quit acceptable. However the density of compounds with shungit is higher than with usual fillers.

Catalyzer for Dehydrogenation as a Filler for Rubber Compounds – Kazakov Yu.M., Khusainova R.M.,

Vol' f son S.I. (P. 30).

The possibility of application of worked out catalyzer, used to the dehydrogenation of IM2201 isopentane, as a filler in the production of covering materials for cooling towers is under discussion.

New Chlorocontaining Elastomer KHEPDK 2 in Rubber Compounds for Sidewalls of Radial Tires – Andriasyan Yu.O., Bobrov A.P., Popov A.A., Moskalev Yu.G., Kashiricheva I.I., Mikhailov I.A., Kornev A.E. (P. 32).

Processing and mechanical properties of standard rubber compound for sidewalls of radial tires (based on 50:50 blend of isoprene and butadiene SKD rubbers) and new rubber compounds (based on and 50:30:20 as well as 50:20:30 blends of SKI 3, SKD and KHEPDK 2 without chemical antioxidants) have been compared. Possibility to use the new clorocontaining elastomer KHEPDK 2 instead of chemical antioxidants in sidewalls of radial tires is shown.

Application of New Elastomer KHEPDK 2 in Rubber Compounds for Bladder – Andriasyan Yu.O., Bobrov A.P., Popov A.A., Moskalev Yu.G., Kashiricheva I.I., Mikhailov I.A., Kornev A.E. (P. 33).

Processing properties of rubber compounds and mechanical properties of vulcanized standard bladder rubber (based on 85:15 blend of butyl rubber BR 1675 and ethylene propylene SKEPT 60) and new bladder rubber (based on 85:15 blend of BR 1675 and KHEPDK 2) have been compared. Improvement of properties of bladder rubber with new elastomer KHEPDK 2 was shown.

Some Features of Deformation Behavior anf Description of Elastic Properties of Filled Elastomers – Shil' ko S.V., Chernous D.A., Anfinogenov S.B. (P. 34).

Simple phenomenological model of filled elastomers is developed. Results of calculation are compared with known experimental data.

Calculation of Moulding Channels for Long Sized Rubber Technical Items of the Guaranteed Quality – Sokolov M.V., Klinkov A.S., Belyaev P.S., Odnol' ko V.G. (P. 38).

Calculation of overall shear under different condition in moulding channels for long sized rubber technical items is presented. Possibility to obtain items of predicted dimensions is show for one of commertial rubbers.

The Use of Waste Rubbers in Production of Some Moulded Technical Rubber Goods – Ushmarin N.F., Vasil'eva N.G., Kol' tsov N.I. (P. 40).

The possibility of the use of different waste rubber products (Polycroshes) together with mineral fillers and inexpensive technological additives in production of moulded technical rubber goods is sown.

IX International Conference on New Achievements in the Field of Polymer and Polymer Based Materials – Pielikhovsky Y., Kozlovsky R., Artsis M.I., Zaikov G.E. (P. 41).

Review of papers presented at IX International Conference on new achievements in the field of polymer and polymer based materials (8–12.07.07, Krakow, Poland).

Fundamental Science – Medicine – Zaikov G.E., Zimina L.A. (P. 43).

Review of papers presented at yearly Conference “Fundamental Science – Medicine” (3–4.12.07, Moscow).

XXXI International Conference “Methods of Study by Means of Vacuum Microbalances” – Zaikov G.E., Artsis M.I. (P. 44).

Review of papers presented at XXXI International Conference “ Methods of study by means of vacuum microbalances” (12–14.09.07, Izmir, Turkey).

The Use of the Waste Products of Fat And Oil Industry in the Rubber Compounds – Popova L.V., Karmanova O.V., Tikhomirov S.G., Korystin S.I. (P. 45).

The possibility of application of waste products of vegetable oil processing (on the basis of diatomite) as processing additive in rubber blends is studied. It provide the best dispersion of ingredients and didn’t change mechanical properties of vulcanized rubber.