Results 31 to 40 of about 947,617 (412)
Exact Topological Twistons in Crystalline Polyethylene [PDF]
Chem.Phys.Lett. 320 (2000) 587-593, 2000 We investigate the presence of topological twistons in crystalline polyethylene. We describe crystalline polyethylene with a model that couples the torsional and longitudinal degrees of freedom of the polymeric chain by means of a system of two real scalar fields.
arxiv +1 more source
Atomic scale mechanisms controlling the oxidation of polyethylene: a first principles study [PDF]
https://www.mdpi.com/2073-4360/13/13/2143, 2021 Understanding the degradation mechanisms of aliphatic polymers by thermal oxidation and radio-oxidation is very important in order to assess their lifetime in a variety of industrial applications. We focus here on polyethylene as a prototypical aliphatic polymer.
arxiv +1 more source
Space Charge Characteristics and Electrical Properties of Micro-Nano ZnO/LDPE Composites
Crystals, 2019 The synergistic effects of zinc oxide (ZnO) Micro/Nano particles simultaneously filled in low-density polyethylene (LDPE) on the space charge characteristics and electrical properties has been investigated by melt blending micro-scale and nanoscale ZnO ...
Jun-Guo Gao +3 more
doaj +1 more source
Laser-assisted photothermal imprinting of nanocomposite [PDF]
, 2004 We report on a laser-assisted photothermal imprinting method for directly patterning carbon nanofiber-reinforced polyethylene nanocomposite. A single laser pulse from a solid state Nd:YAG laser (10 ns pulse, 532 nm and 355 nm wavelengths) is used to ...
Chen, S. C., Lu, Y., Shao, D. B.
core +1 more source
ChemistryOpen, 2020 In this work, different types of polyethylene (linear, spiral nanofibers and microspheres) were obtained via confined polymerization by a PPM‐supported Ziegler‐Natta catalyst.
Dr. Yu Xiao +3 more
doaj +1 more source
HortScience, 2020 Intensive tillage degrades soil structure, decreases soil organic matter, and can cause soil compaction and erosion over time. Organic vegetable farmers are often dependent on tillage to incorporate crop residue, control weeds, and prepare seedbeds ...
Haley Rylander +6 more
doaj +1 more source
Effects of Ti/Mg molar ratio on bi-supported SiO2/MgCl2 (ethoxide type)/TiCl4 catalysts in ethylene homopolymerization and ethylene/1-hexene copolymerization [PDF]
Polyolefins Journal, 2018 SiO2/MgCl2 (ethoxide type)/TiCl4 Ziegler-Natta catalysts for use in ethylene polymerization and ethylene/1-hexene copolymerization have been prepared using silica with a supported layer of magnesium ethoxide (Mg(OEt)2) as a catalyst precursor, followed ...
Liang Zhu +5 more
doaj +1 more source
Orthopedic Research and Reviews, 2021 Michael Decker,1 Amber Price,1 Aria Khalili,2 Robert Klassen,2 Mary Jane Walzak,3 Matthew Teeter,4– 7 Richard McCalden,8 Brent Lanting8 1Department of Orthopaedic Surgery, The University of New Mexico Health Sciences Center, University of New Mexico ...
Decker M +7 more
doaj
Radiative human body cooling by nanoporous polyethylene textile
Science, 2016 Thermal management through personal heating and cooling is a strategy by which to expand indoor temperature setpoint range for large energy saving. We show that nanoporous polyethylene (nanoPE) is transparent to mid-infrared human body radiation but ...
Po-Chun Hsu +7 more
semanticscholar +1 more source
High porosity polyethylene aerogels [PDF]
Polyolefins Journal, 2015 Monolithic aerogels of high molecular weight polyethylene (Mw= 3x106- 6x106 g/mol) have been prepared by solvent extraction with supercritical carbon dioxide from thermoreversible gels prepared in decalin.
Christophe Daniel +2 more
doaj +1 more source