Results 331 to 340 of about 586,949 (373)
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The influence of polyethylene in the mechanical recycling of polyethylene terephtalate
Journal of Materials Processing Technology, 2008Abstract This paper studies the mechanical recycling process of PET derived from waste bottles made by injection-blowing. The effects of the presence of PE and its rheological behavior versus PET were analyzed. A series of proposed blends were injected in different molds and significant process parameters were evaluated to determine the final ...
V.J. Segui +3 more
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Immediate‐type hypersensitivity to polyethylene glycols: a review
Clinical and Experimental Allergy, 2016Polyethylene glycols (PEGs) or macrogols are polyether compounds widely used in medical and household products. Although generally considered biologically inert, cases of mild to life‐threatening immediate‐type PEG hypersensitivity are reported with ...
Emily Wenande, L. H. Garvey
semanticscholar +1 more source
Cold drawing of polyethylene terephthalate/polyethylene films
Journal of Applied Polymer Science, 1987AbstractFilms made from a 77/23 weight percent polyethylene terephthalate/polyethylene blend were stretched using an Instron apparatus. The structures of the samples were examined by methods which included ion beam etching and electron microscopy. The drawn samples exhibited a metallically lustrous and highly reflective surface up to a draw temperature,
Frank E. Karasz +3 more
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Subsurface oxidation of polyethylene
Journal of Biomedical Materials Research, 1998Since the 1960s ultrahigh molecular weight polyethylene has been a primary bearing material in orthopedic prostheses. Most polyethylene components have been sterilized by exposure to gamma radiation, but in the presence of oxygen this promotes degradation and correlates with component failure in the body.
John Yin, John Yin, Brendan M. Daly
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Comparison of Alumina-Polyethylene and Metal-Polyethylene in Clinical Trials
Clinical Orthopaedics and Related Research, 1992The dimensional changes of hip sockets of Müller-type total endoprostheses is the subject of this article. Regular anteroposterior roentgenographs of the pelvis were taken to determine the orientation of the center of the prosthetic head in relation to the wire marker of the polyethylene cup.
Hans-Georg Willert, Ludwig Zichner
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Polyethylene Blends: Better Formulations for Recycled Polyethylene
Macromolecular Symposia, 2012AbstractSummary: To evaluate the performance of recycled high density polyethylene for pipe applications, blends containing 10, 30 and 50% of recycled in a PE T100N matrix were prepared and characterized using several instrumental analysis methods.
L.E. Pimentel Real +1 more
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Environmental Science and Technology, 2014
Polyethylene (PE) has been considered nonbiodegradable for decades. Although the biodegradation of PE by bacterial cultures has been occasionally described, valid evidence of PE biodegradation has remained limited in the literature.
Jun Yang +4 more
semanticscholar +1 more source
Polyethylene (PE) has been considered nonbiodegradable for decades. Although the biodegradation of PE by bacterial cultures has been occasionally described, valid evidence of PE biodegradation has remained limited in the literature.
Jun Yang +4 more
semanticscholar +1 more source
Novel hydrophilic chitosan‐polyethylene oxide nanoparticles as protein carriers
, 1997Hydrophilic nanoparticulate carriers have important potential applications for the administration of therapeutic molecules. The recently developed hydrophobic-hydrophilic carriers require the use of organic solvents for their preparation and have a ...
P. Calvo +3 more
semanticscholar +1 more source
Comparison of rheological properties and compatibility of asphalt modified with various polyethylene
International Journal of Pavement Engineering, 2019Polyethylene-based modification for asphalt is more and more widely used in paving engineering to deal with growing rutting distress on road pavement.
M. Liang +5 more
semanticscholar +1 more source
Polymer Degradation and Stability, 1995
The thermal degradation (or thermolysis) of linear low-density polyethylene (LLDPE) was studied at moderate temperatures, 425–450 °C, under an inert atmosphere. One potential application for the products of polyethylene thermolysis is in the production of synthetic lubricants.
David G. Cooper +2 more
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The thermal degradation (or thermolysis) of linear low-density polyethylene (LLDPE) was studied at moderate temperatures, 425–450 °C, under an inert atmosphere. One potential application for the products of polyethylene thermolysis is in the production of synthetic lubricants.
David G. Cooper +2 more
openaire +2 more sources