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Showing 1 to 16 of 16 for “"Polyetheretherketone"”.
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The Crystallization of Polyetheretherketone (Peek) From the Glass
The effects of melt thermal history on the morphology and kinetics of PEEK crystallized from the glassy state have been investigated. Amorphous PEEK crystallized as aggregates of microcrystals when annealed at temperatures ranging from 145$\sp\circ$C to 200$\sp\circ$C. Heterogeneous nuclei remained …
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ASPECTS OF RECYCLING OF CARBON FIBRE REINFORCED POLYETHERETHERKETONE (CF/PEEK)
… on the recycling of the carbon fibre reinforced polyetheretherketone (CF/PEEK) composite, as it is an expensive material worth recycling. In its virgin form, CF/PEEK has excellent mechanical properties. Thus it is hoped that even after recycling, the extent of degradation to its mechanical …
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Investigation of Novel Electrolytes for Use in Lithium-Ion Batteries and Direct Methanol Fuel Cells
… lithium-ion batteries and composite sulfonated polyetheretherketone (sPEEK) membranes have been investigated for their potential use as a proton exchange membrane electrolyte in direct methanol fuel cells. The characterization of these novel electrolytes is a step towards the development of the …
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Modification of Fused Filament Fabrication Printer to Print High Temperature Thermoplastics to Improve Z-Strength
… flexural properties of polylactic acid (PLA), polyetheretherketone (PEEK), polyetherketoneketone (PEKK) and polyetherimide (PEI) were evaluated. The goal of developing the desktop 3D printer to print high temperature materials equivalent to high end printers was achieved. The testing concluded …
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Flow 1H Dynamic Nuclear Polarization Studies in Normal Liquids and Supercritical Fluid Carbon Dioxide
… available probe in the NMR regime) using PEEK (polyetheretherketone) material.
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Fundamental aspects of the tribological behavior of poly(ether-ether-ketone)-based in-situ composites at elevated temperatures
… composite systems based on binary blends of Polyetheretherketone (PEEK) and HX-1000, a commercially available TLCP, as well as on ternary blends of PEEK, Polyetherimide (PEI) and HX -1000. The specific tribological phenomenon investigated is unlubricated sliding. Friction and wear …
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Investigation of solid polymeric hollow fiber heat exchange devices for use in thermally-driven desalination processes
… hollow fibers of polypropylene (PP) and polyetheretherketone (PEEK) has been studied. The solid hollow fiber dimensions were 425um/575um (ID/OD) for PP and 420um/570um (ID/OD) for PEEK. Extensive heat transfer measurements have been performed and the experimentally-determined overall heat …
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Processing-structure-property relationships of surface porous polymers for orthopaedic applications
… fusion and soft tissue anchors, the polymer polyetheretherketone (PEEK) is already the material of choice in the majority of implants. Despite PEEK’s widespread use, it is often associated with poor osseointegration, which can lead to implant loosening and ultimately failure of the device. …
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Structure and properties of carbon fibre reinforced aromatic thermoplastics
… revealed several toughening mechanisms: Polyetheretherketone (PEEK) rich zones act as crack arresters; fibre bundle and particle bridging of the crack increase the work to fracture. Impact toughness is greatly enhanced over injection moulded composites for similar reasons. The creep …
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I, Crystallization and morphological studies of ICI's intermediate temperature semicrystalline (ITX) polymer and, II, The influence of deformation (shear strain) during bond formation on adhesive bond strength
… that some degradation may be present. Unlike polyetheretherketone, ITX which was previously melted at the processing window high temperature limit can regenerate crystalline nuclei within the material via thermal treatments. Cooling and reheating the material to a lesser temperature increases …
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Investigation of the Fire Behaviour of PEEK-based Polymers and Compounds
Polyetheretherketone (PEEK) is a polymer with outstanding performance, particularly concerning temperature resistance, chemical resistance and mechanical characteristics. Literature shows a gap in the knowledge with regards to PEEK flammability and decomposition products. The aim of this thesis is …
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Evaluación in-vitro de Cr-PEEK como biomaterial alternativo a los materiales tradicionales en implantología dental
… (Ti), yttria-stabilized zirconia (Zr), and polyetheretherketone (PEEK), each offering distinct physicochemical and biological properties. The present thesis investigates and compares the biological and functional properties of three candidate implant biomaterials—commercially pure titanium, …
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Processing Behavior of Thermoplastics Reinforced with Melt Processable Glasses
… sulfide (PPS), polyetherimide (PEI) and polyetheretherketone (PEEK) were combined with phosphate glasses having glass transition temperatures (Tg) that ranged from 230-290°C to form composite systems where both the matrix and reinforcing phase were deformable during processing. For the …
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Tribology of polymeric coatings for aggressive bearing applications
… performance, polytetrafluoroethylene (PTFE)- and polyetheretherketone (PEEK)-based polymeric coatings have received interest in ACR compressor applications, as a potential solution to supplement and potentially replace conventional oil lubricants. However, compared to a great amount of research …