Back SearchTitle: CLIMATIC INFLUENCES IN THE AGEING OF CAR TYRES
Page Range: p.T/1-T/6
Author(s): Zipperle M; Malassa R; Rief B
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The effects temperature, humidity, UV radiation and ozone on the ageing of car tyres were investigated and the appearance, Shore hardness and stress-strain properties of new tyres compared with those of used tyres. Tyres were weathered outdoors and also artificially aged and visually examined to reveal signs of cracking and colour differences. 7 refs. (Article translated from Gummi Fasern Kunststoffe, No.1, 2008, p.49-53)
Title: THERMAL AND PHOTOOXIDATION OF BIODEGRADABLE COMPOSITES BASED ON POLYETHYLENE AND NATURAL FILLERS
Page Range: p.T/7-T/9
Author(s): Lukanina Yu K; Kolesnikova N N; Khvatov A V; Koroleva A V; Monakhova T V; Popov A A
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The thermooxidative and photooxidative degradation behaviour of composites based on LDPE and various fillers (poly-3-hydroxybutyrate, soy flour, brewery dregs and cellulose) were investigated as a function of filler type and the thermophysical properties of the filled polymers determined by differential scanning calorimetry. Soy flour retarded oxidation, brewery dregs accelerated oxidation and cellulose and poly-3-hydroxybutrate had no effect on oxidation. 3 refs. (Article translated from Plasticheskie Massy, No.5, 2007, p.40-42)
Title: NOMOGRAM FOR DETERMINING THE CONTENT OF FIBROUS FILLER IN ARTICLES MADE FROM REINFORCED POLYMERIC MATERIALS BY PULTRUSION
Page Range: p.T/11-T/15
Author(s): Simonov-Emel'yanov I D; Nikolaev V V; Kozhukhar' E S
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
A universal nomogram for the first stage of pultrusion (feeding reinforcing filler) and production of composite articles with different cross-sections, dimensions and configurations and for determining the number of elementary fibres, strands and bobbins is proposed. The procedure for using the nomogram is also described. 5 refs. (Article translated from Plasticheskie Massy, No.5, 2007, p.43-46)
Title: FEATURES OF THE VACUUM FORMING OF FILMS FROM BLENDS OF POLYPROPYLENE AND POLYETHYLENE
Page Range: p.T/17-T/20
Author(s): Markov A V; Kuleznev V N
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The results are reported of a study of the effect of heterophase structure of blends of PP and LDPE on vacuum forming and pneumatic forming, demonstrating that the use of blended composites with an optimal fibre-network heterophase structure enable the regions of process parameters (temperature and depth) to be expanded. (Article translated from Plasticheskie Massy, No.5, 2007, p.46-49)
Title: USE OF POLYVINYL ACETATE PLASTICS IN MEDICINE
Page Range: p.T/21-T/25
Author(s): Voskanyan P S
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
A report is presented on research being conducted at the Plastpolimer Scientific Research Institute Closed Joint Stock Company, Erevan, into polymeric materials for the treatment of radiation and heat burns, high molec.wt. PVAc with a low degree of branching and narrow MWD and PVAL based thereon, thromboresistant polymer coatings for implants and polymer films for radiation shielding. (Article translated from Plasticheskie Massy, No.6, 2007, p.3-6)
Title: STRUCTURE AND PHYSICOMECHANICAL PROPERTIES OF LINEAR POLYETHYLENE CONTAINING A ZNO-ZNS MIXTURE UNDER UV IRRADIATION
Page Range: p.T/27-T/31
Author(s): Gordienko V P; Sal'Nikov V G
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The results are reported of a study of the combined effects of zinc oxide and zinc sulphide on the structure, strength and deformation behaviour of linear HDPE subjected to UV irradiation. Data are included on the effects of additive content on tensile stress and optical density after irradiation and effect of UV irradiation on the molec.wt. of PE containing 2 vol% of additives and synergism between the additives is discussed. 9 refs. (Article translated from Plasticheskie Massy, No.6, 2007, p.6-9)
Title: PROPERTIES OF EXPLOSION-TREATED POLYMER COMPOSITES
Page Range: p.T/33-T/36
Author(s): Adamenko N A; Agafonova G V; Nguen N Kh; Kalmykova Yu A
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The results are reported of a study of the sintering of explosion-compacted mouldings of heat-resistant polyoxybenzoyl (Aroplast A-1) and composites thereof with PTFE and molybdenum disulphide for improving antifriction properties. Data are included showing the physicomechanical properties of Aroplast composites sintered under different holding times and the effects of sintering temperature on the density and hardness of Araplast and composites thereof. 10 refs. (Article translated from Plasticheskie Massy, No.6, 2007, p.9-11)
Title: HEAT STABILITY OF FIBROUS SULPHONIC ACID MATERIALS BASED ON POLYPROPYLENE DURING HEATING IN AIR
Page Range: p.T/37-T/41
Author(s): Novoselova L Yu
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The heat stability of sulphonic acid ion-exchange fibres based on PP was investigated during heating in air and the effect of the nature of the cation on the heat stability of the fibres examined. It was found that the nature of cation exchange affected heat stability and that heat stability could be significantly improved by replacing alkaline and alkaline earth metals with H+ cations. 22 refs. (Article translated from Plasticheskie Massy, No.6, 2007, p.12-14)
Title: NEW POLYMER BINDERS BASED ON OLIGOPIPERYLENE STYRENE AND ALKOXYSILANES
Page Range: p.15-16
Author(s): Chukhlanov V Yu; Kolysheva N A
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The structure, crosslinking and rheological characteristics of a system based on oligopiperylene styrene, tetraethoxysilane and tetrapropoxysilane as a binder for polymer composites are examined and the adhesion characteristics of the composites investigated by pull-off testing. Possible applications for the binder are thermal insulation and heat shields. 2 refs. (Article translated from Plasticheskie Massy, No.6, 2007, p.15-16)
Title: COPOLYMERS OF PHOSPHORUS-CONTAINING METHACRYLATES WITH UNSATURATED POLYESTER
Page Range: p.T/45-T/49
Author(s): Bakhtina G D; Vetyutneva Yu V; Kochnov A B; Novakov I A
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The results are reported of a study of the properties of copolymers of an unsaturated polyester based on a mixture of an oligoester maleate phthalate and triethylene glycol dimethacrylate with various phosphorus- and chlorine-containing oligoester acrylates. Properties evaluated included gel time, thermal properties, mechanical properties and water absorption. The effects of the structures of the phosphorus- and chlorine-containing oligoester acrylates on the properties of the copolymers are examined and the flammability of glass fibre-reinforced composites fabricated from copolymers containing phosphorus-containing oligoester acrylates examined. 16 refs. (Article translated from Plasticheskie Massy, No.6, 2007, p.16-19)
Title: NEW HEAT STABILISERS FOR POLY(VINYL CHLORIDE) COMPOSITES
Page Range: p.5/51-T/52
Author(s): Kondrat'ev V V; Kirillov N S
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
The preparation of beta-(4-hydroxy-3,5-di-tert-butylphenyl)propionic acid salts is described and the salts evaluated as heat stabilisers in vinyl chloride copolymers. The stabilised vinyl chloride copolymers exhibit increased thermooxidative stability when compared with those containing other known heat stabilisers. 4 refs. (Article translated from Plasticheskie Massy, No.6, 2007, p.19-21)
Title: MODIFICATION OF EPOXY-BISPHENOL A RESIN WITH TETRACHLORINATED BICYCLIC COMPOUNDS CONTAINING DICARBONYL BRIDGES
Page Range: p.T/53-T/55
Author(s): Veliev M G; Ishchenko N Ya; Chalabieva A Z; Shatirova M I
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Issue Year: ipsat
Volume: 35
Issue No: No.6
Abstract
Tetrachlorinated bicyclic compounds with carbonyl bridges obtained by diene condensation of tetrachlorobenzoquinone with ethylene and acetylene dienophiles were evaluated as modifiers for increasing the heat stability of epoxy resins. They were found to produce heat resistant and inflammable epoxy resins. The optimum amount of modifier was 20 parts per 100 parts epoxy resin. 8 refs. (Article translated from Plasticheskie Massy, No.6, 2007, p.23-24)