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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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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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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 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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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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Electrochemical recovery and regeneration of polyethylene terephthalate materials
Materials HorizonsElectrocatalytic reforming efficiently converts waste PET plastics into high-value chemicals such as formic acid and glycolic acid, creating a 'waste-resource' circular economy path with economic and environmental benefits.
Chao Chen +8 more
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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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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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Comparison of Cross-Linked Polyethylene Materials for Orthopaedic Applications
Clinical Orthopaedics and Related Research, 2003Cross-linked polyethylenes are being marketed by orthopaedic manufacturers to address the problem of osteolysis caused by polyethylene particulate wear debris. Wear testing of these cross-linked polyethylenes in hip simulators has shown dramatic reduction in wear rate compared with standard ultrahigh molecular weight polyethylene, either gamma ...
John P, Collier +6 more
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Europium as a Candidate Staining Material to Determine Polyethylene Wear
Materials, Nondestructive Evaluation, and Pressure Vessels and Piping, 2006Current protocols employed to measure wear of ultra-high molecular weight polyethylene (UHMWPE) utilize gravimetric and/or topographic measurement techniques. However, these methods may be subject to error due to creeping and fluid absorption capabilities of polyethylene.
Wimmer, Markus A. +2 more
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