Abstracts

№3, 2011

Effect of Nature and Concentration of Mixtures of Emulsifiers and Initiators on the Polymerization Rate of Monomers of Poor Solubility in Water (By The Example Of Chloroprene And Styrene) – Zhachenko S.V., Gritskova I.A., Loba-nov A.N., Lobanova N.A. (P. 2).

Kinetics of polymerization of chloroprene and styrene initiated by different initiators in presence of mixtures of different surfactant has been studied. Results obtained are compared with the data for pure surfactants.

Key words: kinetics of polymerization, styrene, chloroprene, mixture of surfactants.

Butyl Rubber by LANXESS – Commander R. (P. 7).

Information on the properties, applications and advantages of butyl and halobutyl rubbers by LANXESS is presented.

Key words: butyl rubbers, halobutyl rubbers

Stabilization of Stereoregular Polyisoprene Rubber by Hydroxypropylated Derivatives of Aromatic Amines – Ionova N.I., Zemskii D.N., Safin D.Ch. (P. 8).

The behavior of hydroxypropylated derivatives of p-aminediphenylamine in the process of the extraction of stereoregular polyisoprene rubber was studied. Effective protection of the rubber from the thermo-oxidative aging at the increase of the degree of hydroxypropylation was demonstrated. Low activity of investigated substances in the inhibition of mechanical destruction of rubber was sown.

Key words: stereo regular polyisoprene, extraction, rubber stabilization, rubber aging, aging resistance, stabilizers, antiagers

Cleaning of Polybutadiene Processing Equipment from Polymeric Accumulations by the Method of Chemical Destruction – Ismagilova L.Z., Borejjko N.P., Trifonova O.M. (P. 11).

Method of cleaning of processing equipment, in particular reactors for polybutadiene synthesis, was studied. Nitroxyl radical was in use. Molecular characteristics and microstrucure of disrupt polybutadiene samples were defined.

Key words: cleaning, processing equipment, polybutadiene, microstrucure

The Use of Bentonites of Berezov Origin for Modification of Thermoplastic Rubber – Volfson S.I., Okhotina N.A., Nigmatullina A.I., Sabirov R.K., Lygina T.Z., Gubaidullina A.M., Naumkina N.I., Trofimova F.A. (P. 14).

Effect of laminated fillers, namely bentonites of Berezov origin, modified by quaternary ammonium salt, on mechanical and operating properties of thermoplastic rubber based on butadiene acrylonitrile rubber and polypropylene was studied. The structure and thermal stability of filled thermoplastic rubber were analyzed by XRD, TGA and DSC methods. The best complex of properties is shown for thermoplastic rubber containing 1– 5 wt of bentonites.

Key words: thermoplastic rubber, butadiene acrylonitrile rubber, polypropylene, bentonite.

Rheological Behavior of Injection Dienurethan Oligomeric Composition – Medvedev V.P., Chapurkin V.V. Ukrains-kaya S.I., Nistratov A.V., Slovikovskaya S.S., Pylnov D.V. (P. 17).

Rheological behavior of the molding compositions based on hydroxyl-containing oligomeric butadiene rubber was studied. Modification by introduction of a small amount of organosiloxanes on the stage of the coating results in decrease of viscosity and increase of fluidity at low shear rates i.e. open the possibility to control processing properties.

Key words: rheological properties, oligomeric rubber, dienurethan, modification, organosiloxanes

Study of the Process of Gel-Formation in the Systems «Halocontaining Rubber – Shungit» – Artamonova O.A., Trostin A.V., Sakharova E.V., Potapov E.E., Bobrov A.P., Nrukhlyaeva I.V. (P. 19).

The possibility to use of shungit as an active component of rubber compounds based on halocontaining rubbers, such as polychloroprene, chlorinated polyethylene, chlorosulfonated polyethylene, chlorinated butyl rubber.

Key words: shungit, chlorocontaining rubbers, gel-formation

On Ozone Aging of Rubbers in The Presence of Antiozonant of Different Physical Nature – Puchkov A.F., Spiridono-va M.P., Kablov V.F ., Trusova E. V. (P. 23).

The use of mixture of liquid antioxidants is recommended to improve the resistance of rubbers to ozone aging because of formation of defense cover preventing the growth of single dangerous cracks.

Key words: ozone aging, liquid antioxidants

Modification of Adhesive Compositions Based on Polychloroprene by Phosphorus-Containing Compounds – Keibal N.A., Bondarenko S.N., Kablov V.F. (P. 25).

The possibility to use phosphorus-containing substances as adhesion promoters to modification of adhesive compositions based on polychloroprene is shown. The mechanism and conditions of this modification are studied

Key words: adhesive compositions, polychloroprene, adhesion promoters, phosphorus-containing substances, modification

Effect of Oxygen-Containing Environment on Deformation Behavior and Efficiency of Technical Rubber Goods – Kuznetsova I.A., Fomina L.G., Stogova E.P. (P. 28).

Compression set of rubbers based on styrene-butadiene (SKMS-10) and ethylene-propylene rubber in air and oxygen under pressure up to 40 MPa have been studied. Equivalence of compression set increase in air under 40 MPa and in oxygen under 10 MPa as well as in air under 23 MPa and in oxygen under 5 MPa i.e. importance of oxygen content is shown. Comparison of data for rubbers of monosulfide and C-C cross-links is presented.

Key words: compression set, pressure of air and oxygen, styrene-butadiene rubber, ethylene-propylene rubber, monosulfide cross-links, C-C cross-links.

Stress-Strain State of Vulcanizate under Processing on Rolling Crushing Machine in Various Conditions – Durosov L.S., Durosov S.M., Solov’ev M.E. (P. 31).

Deformation behavior of the rubber sample under processing on rolling crushing machine was approximates using linear model and FEM. Effect of clearance dimension between rollers, friction ratio and sliding factor of crushed material on stress-strain state of the sample is studied.

Key words: crushing, rollers, modeling, stress-strain state, FEM

Design of Mathematical Model of Object of Control over Vulcanizing Characteristics of Rubber Compound throw Controlling Factors – Klimov A.Y., Sochnev A.N., Sadchikova G.M., Biryukov V.P. (P. 34).

Design of mathematical model of control over vulcanizing characteristics of rubber compound based, for example, on NR, is under consieration. The possibility to use the correction of amount of vulcanizing agents such as sulfur and sulfenamide for control over these characteristics is shown.

Key words: mathematical model, control of quality, vulcanization, vulcanizing characteristics, sulfur, sulfonamide, ZnO

Technical Textile. Review of World Market – Jänecke M. (P. 37).

Review of assortment, advantages of different types, and trend of development of technical textile in the world.

Key word: technical textile

Effect of Carbon Black Morphology on a Viscosity of the Filled Hydrogels – Kokhanovskaya O.А, Razdiakonova G.I. (P. 41).

Effect of the form of the carbon black primary aggregates on the viscosity of filled polyvinyl alcohol hydrogels is studied. The nearer the aggregat’s form to spherical one, the lower is the viscosity. The higher effect of the form of carbon black aggregates than their dimensions is shown.

Keywords: carbon black, morphology of aggregates, polyvinyl alcohol hydrogels, viscosity.