Abstracts

№1, 2006

Special Tread Black to Improve Cut & Chip Properties – Niedermeier W., Haddeman M. (P.2).

Specially defined crack growth rate have been studied under cyclic deformation. Its dependence on deformation amplitude at different temperature has been presented for NR rubbers filled with blend of carbon black and silica. These data open the possibility to evaluate cut & chip properties of tread rubbers. The best data are obtained for blends of carbon black with HAS silica without silane.

Clean Rubber –Straining Applications with Gear Extruder – Ru..b V., Trost W. (P.10).

Straining with gear extruder is under consideration. Comparison of characteristics of gear and screw extruders and schemes of different types of processing lines with gear extruder are presented.

Recycling of NR Vulcanizates by Mechanochemical Process – Jana G.K., Mahaling R.N., Das C.K. (P.15).

Effect of devulcanization in presence and absence of diphenyl disulfide of unfilled NR vulcanizates on thermostability and dynamic properties of secondary vulcanized rubber has been studied. Devulcanization in presence of diphenyl disulfide results in increase of thermostability and decrease of glass transition temperature in comparison with devulcanization without diphenyl disulfide.

About Interaction between Rubber and Filler – Waste Ion-Exchange Resin in Vulcanizates – Korchagin V.I., Shutilin Yu.F., Solodenko S.G. (P.19).

Interaction between butadiene styrene rubber and fillers has been studied by comparison of parameters of stress-strain curves and relaxation spectra of vulcanizates of different fillers. The higher are the changes of C2 constant in Mooney equation as a result of Patrikeev–Mullins effect, and increases of a-relaxation peak the higher is the activity of filler. Waste ion-exchange resin KU-2 shows the properties of active filler. Impurities in resin don’t affect mechanical properties of vulcanizates.

Effect of Radiation Dose on Properties of Radiation Silicone Vulcanizates – Mel’nik L.A., Mironets O.A., Podnebesnyi A.P. (P.23).

Properties of silicone vulcanizates produced by electron beam radiation of different dose have been studied. Presence of Aerosil results in addition cross-link formation. Decrease of strength with increase of radiation dose is shown.

Structure-Formation of Silicone Rubber by Silica Fillers – Mel’nik L.A., Mironets O.A., Savel’eva N.V. (P.25).

Properties of silicone rubber compounds filled with different types of silica have been studied. The treatment of Aerosil by different substances provides the possibility to produce rubber compounds of dense chemical cross-linking without organic peroxides.

Polyurethane Elastomers Based on Dimethyl Phosphite and Mono- and Diethanole Amines – Verkhunov S.M., Rimov S.S., Kol’tsov N.I. (P. 27).

Synthesis of polyurethane elastomers with the use of available materials has been performed. Thin layer chromatography, IR-spectroscopy and turbidimetric titrimetry have been in the use for characterization of elastomers and their purity. Physical, mechanical and chemical properties of obtained elastomers are better than that of carbo-chain polyurethane elastomers of the same molecular mass.

Computer Simulation of the Service of Worm-Gear Machines for Elastomer Processing – Voskresenskii A.M., Kudin I.I. Shakhovets S.E. (P.30).

Equations describing parameters of processing of rubber compounds by worm-gear machines are presented. Equations obtained using early developed models and attempts, and open the possibility to computer choose and evaluation of processing parameters. Examples of solution of particular tasks are described and the ways of process intensification recommended.

An Intense Processing of Rubber Reclaiming – Shakhovets S.E., Smirnov B.L. (P.34).

Device for rubber reclaiming is described providing the possibility to reclaim rubber under high pressure and temperature and presence of moisture without addition of other ingredient. Reclaim is shown to be stable.

SPET-Processing as a Method of Producing of High Quality Reclaimed Rubber – Borisov I.E., Borisov E.M., Nesiolovskaya T.N. (P.36).

Method of separate powdering of elements of tyres (SPET) is suggested. SPET allows dividing the processed tire into different flows containing different types of materials. High quality secondary row materials of different purposes are obtainable.

IX International Conference on Chemistry and Physical Chemistry of Oligomers – Mezhikovskii S.M. (P.38).

Review of papers presented on IX International Conference on Chemistry and Physics of Oligomers (September, 2005, Odessa, Ukraina)

JSC «Kvart» yesterday, today, tomorrow … – Kul’chitskaya O.V. (P.40).

Information about the history, new achievements and perspectives of JSC «Kvart» – rubber articles plant in Kazan.

«Oligomer State of a Matter» by Mezhikovskii S.M, Arinshtein. A.E., Deberdeev R.Ya. Moscow: Nauka, 2005 – Morozov Yu.L. (P.42).

Review of a book concerning theoretical and experimental investigation of thermodynamic and kinetics of transition in oligomer systems and their structure.