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Polyethylene—The Material of Chance
2021This chapter begins by looking at the history of polyethylene from its unintended synthesis through to its position as the most widely used, by far, plastic. Consisting of relatively simple molecular chains, containing just two types of atom carbon and hydrogen, polyethylene can be shaped into fibers, pipes, a wide array of containers, made into a foam,
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Failure of polyethylene gas pipe materials
Construction and Building Materials, 1989Abstract Two of the pipe resins that are commonly used in the USA are compared with respect to their relative life times. The improvement in the performances of the currently used materials compared to the older material from the same producer have been measured.
N. Brown, X. Lu
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Polyethylene Gradient Material, Processing and Properties
Materials Science Forum, 1999This paper presents the successful development and manufacture of polyethylene gradient material and polyethylene fibre/polyethylene matrix composites with superior mechanical properties. PE-samples with a gradient in molecular weight (MW) and polyethylene / polyethylene composites were characterised by light microscopy, atomic force microscopy (AFM ...
K. Schulte, A. Poeppel
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Infrared refractive index of polyethylene and a polyethylene-based material
Optical Engineering, 2011Polyethylene-based materials are used in many infrared products, including motion detectors. However, little data exists for their infrared optical properties, except at wavelengths longer than 22 μm. The refractive indices of two such materials were measured in the 9.25 to 10.6 μm spectral range, using refraction through thin prisms.
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Anisotropic elasticity of oriented polyethylene materials
Composites Science and Technology, 1995Abstract In this paper we compare the elastic anisotropy of three classes of oriented polyethylene-based materials. The material types were a range of polyethylene/epoxy composites, made in both unidirectional and 0/90 cross-ply forms; polyethylene/polyethylene composites manufactured by the new process of hot compaction, again in both unidirectional
O. Darras +3 more
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[Polyethylene as an implant material].
Der Orthopade, 2003Since the early 1960s, ultrahigh-molecular weight polyethylene (UHMWPE) has been one of the most frequently and successfully used materials in total joint replacement. However, in the course of clinical usage, various weaknesses of the material became apparent including wear and aging properties.
R M, Streicher, M, Thomsen
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Neutron production from polyethylene and common spacecraft materials
IEEE Transactions on Nuclear Science, 2001We report experimental measurements of neutron production from collisions of neutron beams with polyethylene blocks simulating tissue at the Los Alamos National Laboratory Neutron Science Center and 1 GeV/amu iron nuclei with spacecraft shielding materials at the Brookhaven National Laboratory AGS.
R H, Maurer +6 more
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Electrical transport in polyethylene-graphite composite materials
Synthetic Metals, 1991Abstract The transport mechanism in Poly(ethylene)-graphite composites has been investigated through the analysis of the dc conductivity and complex permitivity in the 10 2 –10 7 Hz frequency range. The study of this relatively simple system can be useful for the interpretation of transport in composite materials of higher complexity.
T.A Ezquerra +2 more
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Viscoelastic material characterization and modeling for polyethylene
Polymer Engineering & Science, 1990AbstractAn extensive set of stress relaxation and constant strain rate tests for characterizing the mechanical responses of a medium density polyethylene and a high density polyethylene that are commonly used in natural gas distribution piping is described and analyzed.
C. F. Popelar +2 more
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[Innovative materials in orthopaedics: the crosslinked polyethylene (XPE)].
Annali di igiene : medicina preventiva e di comunita, 2011More than 150.000 hip and knee arthroplasties are performed every year in Italy. More than 50% of the patients receive a polyethylene component (Ultra High Molecular Weight PolyEthylene, UHMWPE). Polyethylene abrasive wear induces over time in vivo a foreign-body response and consequently osteolysis, pain and need of implant revision.
Torre M +5 more
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