Results 301 to 310 of about 3,929,860 (354)
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Electrical Characterization of Polyethylene oxide -Alumina composite
Journal of Thermoplastic Composite Materials, 2011This study deals with the electrical characterization of polyethylene oxide (PEO) – alumina (Al2O3) composites at several concentrations, 0%, 5%, 10%, and 15% by weight Al2O3. The alternating current electrical properties were studied as a function of frequency in the range from 20 Hz to 1 MHz and studied with filler concentrations. Transmission light
ZM Elimat +4 more
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Thermal degradation of polyethylene oxide and polypropylene oxide
Journal of Polymer Science, 1959AbstractPolyethylene oxide and atactic and isotactic polypropylene oxides were pyrolyzed in a vacuum in the temperature range 265 to 363°C. One phase of the investigation consisted in fractionating the products of degradation and analyzing the fractions qualitatively and quantitatively.
S. L. Madorsicy, S. Straus
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Sensors and Actuators A: Physical, 2018
Flexible and high accurate temperature sensors have great potential toward applications such as medical diagnosis and body temperature monitoring. Here, we demonstrated a flexible temperature sensor based on graphite-filled polyethylene oxide (PEO) and ...
Ying Huang +10 more
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Flexible and high accurate temperature sensors have great potential toward applications such as medical diagnosis and body temperature monitoring. Here, we demonstrated a flexible temperature sensor based on graphite-filled polyethylene oxide (PEO) and ...
Ying Huang +10 more
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Investigation on the processes of oxidation and oxidation inhibition of polyethylene
Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1985, 1985The problem of the oxidation of polyethylene has been investigated and discussed in various papers from the aspect of the chemical reactions involved in this process. The main steps are known and measurements of, say, oxygen uptake in thin samples of an oxidation inhibited polymer yield information on the thermo-oxidative stability of the material. The
P. Rohl, B. Andres
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Synthesis of polyethylene oxide macromers
Polymer Bulletin, 1982Anionic “living” polymerization of oxirane was shown to be efficient for the synthesis of polyethylene oxide macromers. The double bond at chainend was introduced either upon initiation or upon deactivation. The macromers obtained were characterized carefully to establish quantitatively the presence of the end-standing double bond. The species are well
Patrick Masson +3 more
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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2019
Polymer drag reduction agents are easy to degrade during application. The drag reduction and mechanical degradation characteristics of polyethylene oxide were investigated in this research.
Xiaodong Dai +4 more
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Polymer drag reduction agents are easy to degrade during application. The drag reduction and mechanical degradation characteristics of polyethylene oxide were investigated in this research.
Xiaodong Dai +4 more
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The oxidation of irradiated polyethylene—II thermal oxidation
The International Journal of Applied Radiation and Isotopes, 1959Abstract The oxidative changes which take place in irradiated polyethylene on exposure to air or oxygen at elevated temperatures have been followed by infra-red and ultra-violet spectrophotometry, by weight loss and oxygen absorption measurements and by estimation of the hydroperoxides produced.
R.M. Black, A. Charlesby
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, 2020
Ductility of fiber reinforced cement-based materials is closely related to the interfacial bond of fiber/matrix, especially for the fiber with surface chemical inertness.
Zeyu Lu, Jiao Yu, Jie Yao, D. Hou
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Ductility of fiber reinforced cement-based materials is closely related to the interfacial bond of fiber/matrix, especially for the fiber with surface chemical inertness.
Zeyu Lu, Jiao Yu, Jie Yao, D. Hou
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Delamination and Oxidation in Compression-Molded Polyethylene
Journal of Bone and Joint SurgeryBackground: At our institution, surgeons were observing cases of failed total knee arthroplasties (TKAs) with surface delamination of the tibial insert fabricated by direct compression molding. The increase in unexpected failure led us to investigate the prevalence of delamination and its causes through the use ...
Brian T. Nickel +6 more
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Laser irradiation of polyethylene oxide
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1989The temperature profiles in polyethlene oxide (PEO) films on a soda lime glass substrate heated by scanning a continuous wave (cw) CO2 laser beam are calculated by finite element methods. The volumetric heating rate in the irradiated film depends on the total power of the laser, the radius of the illuminated spot and the scan rate, as well as film ...
M. Yang +3 more
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