Results 21 to 30 of about 6,572 (196)
Polymer Testing, 2023 Polymer dielectric materials operating at high temperatures are widely needed for advanced electrical and electronic systems. However, currently commercial polymer dielectrics are limited to relatively low operating temperatures.
Sen Niu +5 more
doaj +1 more source
Clinical Performance of CAD /CAM Fixed Functional Space Maintainer Made of Poly Ether Ether Ketone (PEEK) [PDF]
Minia Journal of Medical Research, 2021 Aim of the study: The current study was conducted to evaluate the clinical performance of PEEK polymeric material used as a Computer-aided design or computer-aided manufacturing (CAD /CAM)posterior fixed functional space maintainer clinical performance ...
Yasser Gomaa +2 more
doaj +1 more source
Resin content calculation of carbon fiber/poly (ether ether ketone) by thermogravimetric analysis
Polymer Testing, 2023 Resin content of composites is a dominant factor of macroscopic properties and essential to study. Taking carbon fiber/poly (ether ether ketone) (CF/PEEK) composites molded by various means as examples, a method for resin content calculation obtained ...
Chunrui Lu +3 more
doaj +1 more source
An overview of organic/inorganic membranes based on sulfonated poly ether ether ketone for application in proton exchange membrane fuel cells [PDF]
Journal of Renewable Energy and Environment, 2017 Nowadays, proton exchange membrane fuel cells (PEMFCs) are the most promising green energy conversion devices for portable and stationary applications.
Somayeh Sarirchi, S. Rowshanzamir
doaj +1 more source
Membranes, 2019 This paper discusses the effect of the chemical structure of sulfonated poly(aryl ether sulfone) on the performance of composite nanofiltration membranes.
Shouhai Zhang +5 more
doaj +1 more source
Polymer, 1997 Poly(ether ether ketone)/poly(ether diphenyl ether ketone) blend containing 30wt% PEDEK was used to investigate the melting behaviour of immiscible PEEK/PEDEK blends. The results measured from differential scanning calorimetry (d.s.c.) and wide-angle X-ray diffraction (WAXD) showed that immiscible PEEK/PEDEK blends isothermally crystallized at a ...
Ji, Xiang Ling +3 more
openaire +2 more sources
Mechanochemistry Meets Catalysis: Metal Complexes for Greener Organic Transformations
Angewandte Chemie, EarlyView.Mechanochemistry is redefining metal catalysis by controlling catalyst formulation, speciation, and deployment. This Review shows how milling, LAG, RAM, and TSE enable rapid metal‐complex assembly, distinctive catalytic manifolds, and scalable synthesis beyond solution chemistry.
Sourav Behera +2 more
wiley +2 more sources
Advances in Polymer Technology, 2020 Poor mechanical property is a critical problem for phosphoric acid-doped high-temperature proton exchange membranes (HT-PEMs). In order to address this concern, in this work, a 3D network structural poly (aryl ether ketone)-polybenzimidazole (PAEK-cr-PBI)
Junqiao Jiang +5 more
doaj +1 more source
Ordered Ionic‐Liquid Channels Enable Fast Anhydrous Proton Conduction at up to 240°C for Fuel Cells
Angewandte Chemie, EarlyView.Infiltration of ionic liquids into a composite scaffold comprised of graphene and boron nitride nanosheets functionalised with positively charged polyethyleneimine produces robust proton conducting membranes for the intermediate temperature electrochemical devices.
Mazin Al‐Alawi +8 more
wiley +2 more sources
Preparation and Characterization of UV Irradiated SPEEK/Chitosan Membranes
International Journal of Electrochemical Science, 2012 Cross-linked composite membranes of sulfonated poly(ether ether ketone) (SPEEK) with a chitosan content up to 50 wt%, were prepared by solution cast technique and ultraviolet (UV) curing.
N.A. Aini +5 more
doaj +1 more source