electron beam irradiation to recrosslink devulcanized sulfur cured rubber blended polypropylene

    electron beam irradiation to recrosslink devulcanized sulfur cured rubber blended polypropylene,

    Irradiation vulcanized styrene-butadiene rubber/nanoscale .

    Dec 22, 2015· Abstract. This paper investigated the styrene butadiene rubber (SBR)/nanoscale silica (SiO 2) composites vulcanized by electron-beam irradiation.Infrared spectra of the Si-O bond of SiO 2 before and after irradiation were studied, and the infrared absorption peak of the Si-O bond of the electron beam irradiated SBR/SiO 2 nanocomposites showed a blue shift of 20 cm −1 compared with …

    Polymer Degradation and Stability (v.119, #C) | .

    Polymer Degradation and Stability (v.119, #C) . (PVAc) were exposed to swift heavy ion beam irradiation with Xenon, Gold, and Uranium ions with kinetic energies up to 2 GeV, . Waste tire rubber was devulcanized by using supercritical carbon dioxide as a reaction medium. The influence of reaction temperature, pressure, time and diphenyl .

    Will electron beam crosslinking improve the thermal .

    Polyethylene is the most commonly electron beam-crosslinked polymer. Regardless whether it is LDPE, LLDPE or HDPE, it will crosslink with sufficient dose. The effect of the crosslinking will be a dramatic increase in heat resistance, as well as an improved impact resistance at low temperatures and a number of other property enhancements.

    Electron Beam Irradiation Effects on Dielectric Parameters .

    Variations in dissipation factor of SiR–EPDM blends for various doses of electron beam irradiation. The DC of the blend A reduced for all doses of electron beam. The DC of blend B reduced at 5 and 15 Mrad. The DF of SiR-rich blends (A and B) reduced for all doses of electron beam. The DC and DF of the blend C improved at 5 and 15 Mrad respectively.

    Polymer Engineering & Science : Vol 59, No 5

    For more than 30 years, Polymer Engineering & Science has been one of the most highly regarded journals in the field, serving as a forum for authors of treatises on …

    23: ' # '9& *#2 & 4 - InTech

    Peroxide cure progresses through a series of radical intermediates, each of which can undergo side reactions which may not necessarily contribute to crosslink density. Radiation cure, on the other hand, has been promoted as a cleaner and more homogeneous cure process. Electron beam irradiation has been used in the wire and cable industry for

    Increasing UHMWPE abrasion resistance with electron beam .

    Sep 05, 2017· Are you looking for a tough material with high abrasion resistance? The e-beam process can greatly improve the abrasion resistance of Ultra High Molecular Weight Polyethylene. Ultra High Molecular Weight Polyethylene is also known as UHMWPE. It's pretty cool stuff. As the name implies, it is polyethylene with really long chains. In fact, it's molecular weight […]

    Full text of "Official gazette of the United States Patent .

    Full text of "Official gazette of the United States Patent Office [microform]" See other formats .

    electron beam irradiation to recrosslink devulcanized sulfur cured rubber blended polypropylene,

    Modification of polypropylene fibers by electron beam .

    The best dyeing result was obtained when polypropylene fibers incorporated by sulfonic acid group after electron beam irradiation were dyed with cationic dyes at …

    Polyethylene foams cross-linked by electron beam - IPEN

    Polyethylene foams cross-linked by electron beam Djalma Batista Dias, Leonardo Gondim de Andrade e Silva . Cross-linking of low-density polyethylene by electron beam irradiation was studied in this work with the aim of foam production by . as in the case of a blend (Klempner and Frisch, 1991). A hot thermoplastic polymer

    71st Annual Technical Conference of the Society of .

    71st Annual Technical Conference of the Society of Plastics Engineers 2013 (ANTEC 2013) Cincinnati, Ohio, USA April 2013 Volume 1 of 3 ISBN: Printed from e-media with permission

    Effects of Electron Beam Irradiation on Impact Value of .

    Effects of Electron Beam Irradiation on Impact Value of Carbon Fiber Reinforced Thermoplastic Polyetheretherketone Yoshitake Nishi 1 ;23, Hiroaki Takei *, Keisuke Iwata *, Michelle Salvia4 and Alain Vautrin3 1Graduate School of Metallurgical Engineering, Tokai University, Hiratsuka 259-1292, Japan 2Doctoral Graduate School of Science and Engineering, Tokai University, Hiratsuka 259-1292, Japan

    <![CDATA[Materials Research]]> - scielo.br

    The powder was mixed to 10%wt Co powder and spark plasma sintered (SPS) under 80Mpa pressure, at 1200ºC with heating rate of 160ºC/min. A reference alloy was prepared with a commercial WC powder and 10%wt. Co under the same conditions. The structures of both alloys were investigated by means of scanning electron microscopy and Vickers hardness.

    Journal of the Brazilian Chemical Society via MedWorm

    MedWorm provides a medical RSS filtering service. Thousands RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'Journal of the Brazilian Chemical Society' source.

    Thermo-mechanical properties of devulcanized rubber/high .

    Evaluation of the mechanical and Devulcanized rubber thermal properties of the developed blends, unirradiated and gamma irradiated, was carried out using Polypropylene tensile strength (Ts), elongation at break (Eb), hardness, TGA and DSC measurements.

    Effect of electron beam irradiation on mechanical .

    Ionizing irradiation (gamma rays emitted by Co-60 source or electron beam produced by electron accelerators) is an important process for modifying polymers by cross-linking and/or degradation which occur simultaneously during irradiation.

    Crosslinking Polyethylene Resins via E-Beam Irradiation

    Introduction polymer molecular weight distribution. Sol. Electron beam (E-Beam) irradiation is a convenient, effective technique for crosslinking polyethylene in applications where the penetration distance is small, such as thin films and small diameter fibers.

    Investigation of Sulfur Crosslinking Interfacial of .

    The sulfur crosslinking films from Natural Rubber (NR), Carboxylated Stryrene Butadiene Rubber (XSBR) latices, and their blends have been investigated using X-ray absorption near-edge structure spectroscopy (XANES). The film was prepared by casting the latex compound on glass surface and heating at 120oC in a hot air oven for 10 minutes. The sulfur crosslinking density were studied by the …

    Effect of Electron Beam Irradiation Cross-Linking on .

    Effect of Electron Beam Irradiation Cross-Linking on Polyolefin/Phenyl Silicon Rubber Composite Tian Minghua, Xia Faming, Zhang Huijuan, Wang Anyi and Wang Xiaoguang * Master, Institute of Textile, Wuhan Textile University, Wuhan 430073, China

    US20160045841A1 - Google Patents

    Materials which may be produced from the batteries include, for example, but are not limited to, lead, acid, polypropylene, rubber, ionized laden membranic material, filter cakes, and lithium. Materials which may be produced from the tires include, for example, rubber, (processed in …

    Análise da produção científica em nanotecnologia no Brasil

    Effects of Electron Irradiation during High Temperature In-situ TEM Observations of Pb Nanoparticles in Silica. 2013. (Congresso). . The 57th Electron, Ion, Photon Beam and Nanofabrication (EIPBN_2013) Conference = //. . Spherical shape phase separation in light emitting polymer/PMMA blend …

    Pesquisadores em Nanotecnologia - vlab4u

    Evaluation of a Plastic Composite Produced with Residues of Sugarcane Bagasse and Polypropylene without Additives. Advanced Materials . Cryo-scanning electron microscopy: a powerful tool for the morphologic . In situ investigation of the effect of TiF4 and CO2 laser irradiation on the permeability of eroded enamel. Archives of Oral Biology .

    Influence of Electron Beam Irradiation and Step .

    The influence of both electron beam irradiation and step-crosslinking process on the high abrasion furnace (HAF) carbon black loaded natural rubber (NR) vulcanizates are reported. With irradiation, a higher crosslinking density, ν, thermal conductivity, λ, glass transition temperature, T g, and decreased

    electron-beam irradiated ethylene-vinyl: Topics by Science

    Jun 01, 2018· The increasing of electron beam irradiation dosages up to 250 kGy has gradually increased the gel content of all EVA-devulcanized rubber blends by . Influence of electron beam irradiation on mechanical and thermal properties of polypropylene/polyamide blend. . Surface-and bulk-properties of EPDM rubber modified by electron beam irradiation.

    Basic Engineering Chemistry | Sodium Carbonate | Calcium

    Basic Engineering Chemistry - Free ebook download as PDF File (.pdf), Text File (.txt) or read book online for free. . rubber gloves must be worn to guard against the danger of dermatitis in some cases. . Irradiation of water by ultraviolet light is commonly used for disinfection in food industries.

    Microtron Irradiation Induced Tuning of Dielectric .

    The electron beam irradiation effects on the dielectric behaviour of a polymer nanocomposite dielectric made of low density polyethylene filled with nanoparticles of ZnO were studied. The dielectric constant and dielectric loss values were determined by dielectric spectroscopy over a frequency range of 100 KHz–5 MHz on plane samples of the .

    Thermo-mechanical properties of devulcanized rubber/high .

    Jul 25, 2013· The mechanical and thermal behaviors of the blends composed of devulcanized rubber (DR) and high crystalline polypropylene (PP) in different proportions were studied. Evaluation of the mechanical and thermal properties of the developed blends, unirradiated and gamma irradiated, was carried out using tensile strength (Ts), elongation at break ( E b ), hardness, TGA and DSC …

    Crosslinking Polyethylene Resins via E-Beam Irradiation

    polyethylene films via electron beam exposure in an inert environment was studied. Increasing Melt Flow Index and polymer density both decreased the insoluble gel fraction resulting from irradiation at a dosage of 800 kGy. The effect of adding low levels of two different polyfunctional monomers was also examined.

    Comparison between electron-beam and chemical crosslinking .

    Abstract Silicone rubber (SR) was irradiated by electron beam over a dose range of 50-300 kGy in the absence of chemical reagents. Molecular weight between crosslinks ( M c) in the network of SB was determined by two methods of solvent swelling and modulus of elasticity.The network structure of the elastomer crosslinked by electron beam irradiation and chemical vulcanization was compared.

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