نتایج جستجو برای: Sulfonated poly(ether ether ketone)

تعداد نتایج: 31797  

2015
Wenzheng Wu Peng Geng Guiwei Li Di Zhao Haibo Zhang Ji Zhao

Fused deposition modeling (FDM) is a rapidly growing 3D printing technology. However, printing materials are restricted to acrylonitrile butadiene styrene (ABS) or poly (lactic acid) (PLA) in most Fused deposition modeling (FDM) equipment. Here, we report on a new high-performance printing material, polyether-ether-ketone (PEEK), which could surmount these shortcomings. This paper is devoted to...

Journal: :Cumhuriyet Science Journal 2017

2015
Carlo Boaretti Martina Roso Alessandra Lorenzetti Michele Modesti

In this study electrospun nanofibers of partially sulfonated polyether ether ketone have been produced as a preliminary step for a possible development of composite proton exchange membranes for fuel cells. Response surface methodology has been employed for the modelling and optimization of the electrospinning process, using a Box-Behnken design. The investigation, based on a second order polyn...

Journal: :iranian journal of pharmaceutical sciences 0
seyed reza ghaffarian polymer engineering faculty, amirkabir university of technology, tehran, iran homayoun moaddel department of materials science and engineering, university of california,los angeles, ca, usa fatemeh s. majedi biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran mohammad mahdi hasani-sadrabadi polymer engineering faculty, amirkabir university of technology, tehran, iran biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran

the muscle-like technology would be of enormous advantages for biomedical applications such as medical implants and human assist devices. ionic polymer metal composites (ipmcs) are one kind of biomimetic actuators. an ionic polymer metal composite composed from an ionomer with high ion exchange capacity that packed between two thin metal layers. in the present study we focused on the preparatio...

Journal: :iranian journal of hydrogen and fuel cell 0
mohammad javad parnian school of chemical engineering, iran university of science and technology, narmak, tehran 16846-13114, iran fatemeh gashoul school of chemical engineering, iran university of science and technology, narmak, tehran 16846-13114, iran soosan rowshanzamir green research center (grc) & school of chemical engineering (sche) iran university of science & technology

sulfonated poly (ether ether ketone) (speek) with a low degree of sulfonation (ds = 40%) was prepared for proton exchange membrane fuel cells (pemfc). poly (ether ether ketone) (peek) was sulfonated in concentrated h2so4 under n2 atmosphere and characterized by the hydrogen nuclear magnetic resonance (h-nmr) technique. after preparation of the speek polymer, the obtained polymer was dissolved i...

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