Back SearchTitle: RECENT ADVANCES IN THERMOPLASTIC ELASTOMERS IN JAPAN – APPLICATION, MARKET AND MATERIALS
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Author(s): Kato K
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
Recent advances in the development of thermoplastic elastomers (TPEs) based on polystyrene, polyolefins, poly(vinyl chloride), polyurethanes, polyesters, polyamides and other plastics in Japan are reviewed. Sales and applications of the various TPEs are discussed in terms of products and markets, including automotive, consumer electrical and electronics, industrial, civil engineering and construction, sports goods, and medical and healthcare, and future prospects are also considered. 18 refs. Article translated from Nippon Gomu Kyokaishi, Vol.80, No.6, 2007, p.226-232.
Title: THE EFFECT OF SWELLING IN ORGANIC LIQUIDS ON THE MECHANICAL PROPERTIES OF SEGMENTED POLYURETHANES
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Author(s): Tereshatov V V; Makarova M A; Senichev V Y
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The effects of swelling in various organic liquids on the mechanical properties of microheterogeneous segmented polyurethanes (SPU) with urethane-urea rigid blocks and different flexible segments, derived from oligotetramethylene oxide and oligopropylene oxide with an excess of 2,4-toluene diisocyanate, were investigated by tensile testing of the initial and swollen SPU. The results are discussed in terms of the breakdown of the network domain structure of the SPU on swelling and plasticisation by the liquid. 6 refs. Article translated from Plasticheskie Massy, No.12, 1996, p.4-7.
Title: EFFECT OF PLASMA ACTIVATION ON THE SURFACE STRUCTURE AND STRENGTH CHARACTERISTICS OF POLYPROPYLENE FILM
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Author(s): Golubchikov O A; Gornukhina O V; Ageeva T A; Bazarov Y M
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The effects of surface activation by low temperature oxygen or argon plasma treatment on the surface structure and strength characteristics of polypropylene films were investigated by tensile testing, FTIR, and tapping mode and phase contact AFM. The results are discussed in terms of a reduction in surface roughness and an increase in the formation of oxygen-containing groups such as hydroxyl, carbonyl and carboxyl. 11 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.7-9.
Title: ELECTRICALLY CONDUCTIVE POLYMERIC MATERIALS WITH NON-STOICHIOMETRIC TITANIUM CARBONITRIDES
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Author(s): Ishkov A V; Sagalakov A M
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The development of electrically conductive polymeric composites based on non-stoichiometric titanium carbonitrides as fillers and various polymer matrices, including polyamide, epoxy resin, high density polyethylene and polytetrafluoroethylene, is described. The products were characterised by XRD, density, porosity, volume resistivity, water and oil absorption, and the effects of filler content and temperature on the properties of the composites are discussed. 11 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.10-13.
Title: THERMOMECHANICAL PROPERTIES OF FLUOROPLASTIC-COPPER COMPOSITES
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Author(s): Adamenko N A; Kazurov A V; Fam A K
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The preparation of composites of polytetrafluoroethylene with various proportions of copper powder as filler by static compaction (compression moulding) and by shock-wave compaction, and their characterisation by TMA, thermal expansion, viscosity and optical microscopy before and after sintering, is described. The effects of shock-wave compaction and filler content on the properties of the composites are discussed in terms of structural modification and interfacial adhesion between filler and matrix. 12 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.13-16
Title: PRODUCTION OF AQUEOUS DISPERSIONS BASED ON VINYL ACETATE IN THE PRESENCE OF AN OIL-SOLUBLE INITIATOR
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Author(s): Tabakalyan N B; Khechoyan S A; Nagapetyan E P; Voskanyan P S
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The synthesis of aqueous polymer dispersions by emulsion copolymerisation of vinyl acetate with various proportions of acrylic acid with varying degrees of neutralisation in the presence of the oil-soluble initiator benzoyl peroxide is described. The products were characterised by viscosity, coefficient of thixotropy and adhesive strength, and the effects of the addition of protective colloid on the viscosity of the dispersion are discussed. 4 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.17-19
Title: SYNTHESIS AND POLYMERISATION OF CYCLOPROPYLSTYRENE AND ITS MONO- AND HEMI-DICHLORO DERIVATIVES
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Author(s): Guliev K G; Ishchenko N Y; Guliev A M
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The synthesis of p-cyclopropylstyrene and its mono- and hemi-dichloro- derivatives by reaction of p-divinylbenzene with dichlorocarbene generated by alkaline hydrolysis of chloroform and subsequent reduction, is described. The radical polymerisation of each of the monomers was investigated, and the products were characterised by FTIR, proton NMR, impact strength, intrinsic viscosity, refractive index, Vicat softening point, Brinell hardness, elongation at break and flammability. 6 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.25
Title: PARAMETERS OF DILATON AND LIMIT ASSESSMENTS OF THE MECHANICAL PROPERTIES OF POLYAMIDES DURING HIGH-SPEED DEFORMATION
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Author(s): Rybin A A; Bukharov S V; Chervyakov A A
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The mechanical properties under compression impact of injection moulded samples of polyamide-6,6 (PA-66) modified with different proportions of caprolactam, and of glass fibre-reinforced PA-66, were investigated by uniaxial compression testing at a range of temperatures. The results are discussed in terms of the dilaton approach to the analysis of strains causing failure of chemical bonds during high-speed deformation. 6 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.26-28
Title: PHYSICOMECHANICAL PROPERTIES OF ROOFING MATERIAL BASED ON A POLYETHYLENE MATRIX AND BASALT FABRIC
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Author(s): Goncharova T P; Artemenko S E; Kadykova Y A
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The fabrication of multi-ply waterproof roofing materials based on virgin or waste polyethylene films and basalt fabrics by a calendering process, and their characterisation by tensile strength, elongation at break, water permeability and flexibility at low temperatures, is described. The effects of processing conditions on physicomechanical properties are discussed in terms of potential building and agricultural applications. 4 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.29-30
Title: OPTIMISING THE COMPOSITION OF POLYMER COMPOSITES BASED ON EPOXY RESINS
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Author(s): Voronkov A G; Yartsev V P
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
Optimisation of the composition of polymer composites based on epoxy resin with asbestos friction waste, a finely dispersed mineral powder, as filler, epoxy resin master as plasticizer, and polyethylenepolyamine as curing agent was investigated. An experimental design based on a second-order two-factor orthogonal composition was used to determine the dependence of compression, bending and shear strengths of the composite on filler and plasticizer contents, and the results are discussed. 4 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.30-32
Title: INVESTIGATION OF THE OXIDATION OF COMPONENTS OF ANAEROBIC ADHESIVES
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Author(s): Nikolaev E Y; Aronovich D A; Sineokov A P
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The oxidation by molecular oxygen of the components of anaerobic adhesives based on trimethylene glycol dimethacrylate (TGD) with an initiating system comprising cumyl hydroperoxide, dimethyl-p-toluidine and o-benzosulphimide was investigated by volumetric measurements of oxygen absorption. The results are discussed in terms of the kinetics and mechanisms of the oxidation reactions, and the effects of various hydroxylamines as antioxidants on the stabilisation of TGD were also studied. 13 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.36-39
Title: NAP-RAISED FILTER MATERIALS
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Author(s): Dedov A V
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The fabrication of nap-raised filter materials based on mixtures of polyester fibres and two-component fibres consisting of a poly(ethylene terephthalate) core and a polypropylene sheath was investigated by a needle punching process followed by heat treatment. The efficiency of the materials in the filtration of air and water containing iron oxide powder was studied, and the effects of the content of two-component fibres on particle size distribution after filtration are discussed. 8 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.43-46
Title: DEVELOPMENT OF DESIGNS AND METHOD FOR CALCULATING MULTISTREAM EXTRUDER HEADS FOR THE MANUFACTURE OF PROFILED ITEMS
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Author(s): Panov A A; Zaikov V G; Panov A K; Zaikov G E
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Issue Year: ipsat
Volume: 34
Issue No: No.12
Abstract
The development of designs for multi-stream extruder heads for the high-throughput manufacture of profiled polymeric items such as skirting, furniture runners and beading, and an investigation of the hydrodynamics of polymer melt flows in the moulding channels of the designs for polymers such as low density polyethylene, polystyrene and polypropylene, is described. A mathematical model describing quantitatively the effects of swelling during the extrusion of polymeric items of complex cross-section is also presented. 6 refs. Article translated from Plasticheskie Massy, No.12, 2006, p.46-51