gamma-ray vulcanization of rubber sciencedirect
Gamma-ray vulcanization of rubber - ScienceDirect
Gamma-ray vulcanization of rubber 107 The efficiency of cross linking can also be judged by the energy required to produce a cross link. The following values are taken from CHARLESBY'S work, using pile irradia- tion.
THE VULCANIZATION OF POLYDIMETHYLSILOXANE RUBBER USING $gamma$-RADIATION (Journal Article) | OSTI.GOV
The Co/sup 60/ gamma-ray induced degradation of butyl rubber and of its vulcanizates at 25 deg was investigated. Vinylidene groups are formed on irradiation in air and vacuum, causing the appearance of 11.25 mu bands in the IR spectra.
Gamma-ray shielding characteristics of flexible silicone tungsten composites - ScienceDirect
1/1/2020 · Flexible silicone/tungsten composites were developed by the room-temperature vulcanization route. • A density of 6.65 g/cm 3 was achieved for 88.1 wt % loading. Effective gamma-ray shielding due to better attenuation properties, light weight,
Effect of gamma irradiation on the properties of natural rubber/styrene butadiene rubber blends
ORIGINAL ARTICLE Eﬀect of gamma irradiation on the properties of natural rubber/styrene butadiene rubber blends A.B. Moustafa a, Rania Mounir b, A.A. El Miligy b, Maysa A. Mohamed b,* a Faculty of Girls, Ain Shams University, Egypt b National
PAPER OPEN ACCESS Natural rubber block as gamma radiation shielding for medical applications
Journal of Physics: Conference Series PAPER OPEN ACCESS Natural rubber block as gamma radiation shielding for medical applications To cite this article: O Onjun et al 2019 J. Phys.: Conf. Ser. 1285 012048 View the article online for updates and
Effect of Gamma Radiation on Properties of Cellulose Nanocrystal/Natural Rubber Nanocomposites | Request PDF
Gamma-ray radiation was used as vulcanization method and varied at 10 and 20 kGy. The tensile modulus and tensile strength of NR vulcanizates increased with addition of CNC and contents.
Shielding for Gamma Ray and Beta Particles Made from Rubber Composite
between Gamma Ray , beta particle with our material give good result as a protective from radiation Conclusion 1. Transmission of (Gamma -Ray) that decreasing with loading of (TiO2) percent. 2. Cross – Linking between compound3.
Radiation Vulcanization of Natural Rubber Latex - Nuclear Malaysia
Theoretically, radiation vulcanization of natural rubber latex can be accomplished by merely exposing natural rubber latex to high energy ionizing radiation such as gamma ray or electron beam. However, it may require a big amount of radiation,
Radiation vulcanization of natural rubber latex using 250 keV electron beam machine | Request PDF
The sensitized radiation vulcanization of natural rubber latex has been carried out with 250 keV electrons. Latex was irradiated over a range of the beam current from 5 to 20 mA in
Preparation and properties of the self-crosslinked acrylic rubber via gamma ray initiated emulsion polymerization. - Free Online Library
1/12/2006 · The self-crosslinked ANM rubbers with AA and NOH as the cure-site monomers were synthesized via [gamma]-ray irradiation emulsion copolymerization. The mechanical properties and vulcanizing performance improved much by the introduction of AA and
INTRODUCTION - Shodhganga
Radiation vulcanization improves the properties of rubber and has a number of advantages over the conventional method of vulcanization. In γ-ray vulcanization, the crosslinking occurs by elimination of hydrogen and direct carbon-carbon bonds are
Radiation Physics and Chemistry - IPEN
2.1.1. Butyl rubber vulcanization Vulcanization systems contain vulcanizing agents (sulfur, metal oxide and peroxide compounds) and, when necessary, accelerators, activators, retarders, etc.; all of these use to produce the desired vulcanization
Advances in radiation chemistry of polymers
the stability and stabilization of polymers under irradiation, the radiation vulcanization of natural rubber latex, the modification of polymers for biomedical applications such as the radiation synthesis of membranes, hydrogels and adsorbents.