Results 101 to 110 of about 5,752 (206)

Polybenzimidazole Membranes Modified with Porous Aromatic Frameworks: Synthesis, Structure, Mechanical and Transport Properties

open access: yesNanoenergy Advances
High-temperature proton exchange membrane systems (HT-PEM) based on polybenzimidazole (PBI) membranes are a promising technology offering significant advantages over their low-temperature counterparts. A key challenge limiting its long-term durability is
Dmitry D. Spasov   +9 more
doaj   +1 more source

New type of nonflammable paper [PDF]

open access: yes, 1970
Nonflammable paper is made from fibers of chrysotile asbestos, beta-glass fibers, glass microfibers, and a little nonflammable organic binder. It does not propagate flame in an atmosphere of 16.5-psig oxygen, and it is resistant to rot and mold, making ...
Armstrong, G. K.
core   +1 more source

High temperature proton exchange membranes based on polybenzimidazoles for fuel cells [PDF]

open access: yes, 2009
Aharoni   +235 more
core   +1 more source

Graphite and ablative material response to CO2 laser, carbon-arc, and xenon-arc radiation [PDF]

open access: yes
The behavior was investigated of graphite and several charring ablators in a variety of high-radiative heat-flux environments. A commercial-grade graphite and nine state-of-the-art charring ablators were subjected to various radiative environments ...
Brewer, W. D.
core   +1 more source

ADHESIVE AND ANTICORROSIVE POLYMERIC COATINGS OBTAINED FROM POLYBENZAZOLES (PBI and PBO)

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
: In this study, polybenzimidazole and polybenzoxazole having high molecular weights were prepared with 3,3'-diaminobenzidine, 1,2,4,5-tetraaminobenzene or 3,3'-dihydroxybenzidine and various dihydroxamoyl chloride.
İlkay ÖZAYTEKİN
doaj  

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