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Motion in Polyethylene. II. Vibrations in Crystalline Polyethylene

The Journal of Chemical Physics, 1962
Using the specific heats of completely crystalline polyethylene as a basis, the vibrational spectrum is discussed. The vibrational spectrum is found to consist of three completely separate parts. (A) The high-frequency CH2-stretching vibrations between 2850 and 2930 cm—1 which contribute little to the specific heat below 350°K.
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Polyethylene

2017
Polyethylene (PE), despite having the simplest basic structure of any polymer (a repetition of CH2 units), is the largest tonnage plastics material. The main attractive features of PE are its low price, excellent electrical insulation over a wide range of frequencies, very good chemical resistance, good processability, toughness, flexibility, and—in ...
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Pyrolysis Study of Polypropylene and Polyethylene Into Premium Oil Products

, 2015
Pyrolysis of polypropylene (PP) and high density polyethylene (HDPE) into fuel like products was investigated over temperature range of 250– 400°C. The product yields as a function of temperature were studied.
I. Ahmad   +6 more
semanticscholar   +1 more source

Polyethylene Terephthalate

1995
Publisher Summary This chapter opens with the general discussion of joining techniques regarding polyethylene terephthalate. Mouldings may be joined by the use of adhesives, by ultrasonic welding or mechanically by self-tapping inserts. Epoxy and cyanoacrylate adhesives are particularly effective.
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The Polyethylene History

2005
Our understanding of the wear behavior of polyethylene (PE) components has deepened over the past few years as the adverse effects of gamma irradiation (in air) sterilization have become understood. This understanding has led to methods to improve the wear performance of the polymer using cross-linking.
M. Spector, A. Bellare
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Electroplating of polyethylene

Journal of Chemical Education, 1978
In the process of reorganizing a first-year chemistry laboratory for engineering students the authors have developed experiments that reproduce the approach in solving industrial chemical problems.
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Polyethylene microplastics affect the distribution of gut microbiota and inflammation development in mice.

Chemosphere, 2019
Boqing Li   +9 more
semanticscholar   +1 more source

BRANCHING IN POLYETHYLENE

Annals of the New York Academy of Sciences, 1953
Joseph J. Smith   +2 more
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Polyethylene Wear

1999
Ultrahigh molecular weight polyethylene (UHMWPE) possesses a unique blend of toughness, wear resistance, and biocompatibility.1,2 It has been the articular-bearing surface of choice against metal or ceramic since 1962.3 To date, it is still the best polymer available for joint implant use.4 However, with respect to long-term function and durability ...
James V. Bono, George Faithfull
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