Results 71 to 80 of about 5,752 (206)
Foam composite structures [PDF]
The need to include fire resistant foams into state of the art aircraft interior paneling to increase passenger safety in aircraft fires was studied. Present efforts were directed toward mechanical and fire testing of panels with foam inclusions. Skinned
Delano, C. B., Milligan, R. J.
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Hydrogen and Oxygen Crossover in Anion Exchange Membranes
International Journal of Energy Research, Volume 2026, Issue 1, 2026.In recent years, anion exchange membrane fuel cells (AEMFCs) have drawn more attention by showing high performance and potentially allowing catalysts based on more abundant materials. One frequently overlooked parameter in these systems is membranes permeability, often referred to as gas crossover.
Nikola Nikolić +5 more
wiley +1 more source
Development of Composite Membranes as Selective Adsorbent for Yttrium Ion
International Journal of Electrochemical Science, 2013 Polybenzimidazole based composite membranes (65 TSAD, 50 TSAD and 35 TSAD) were prepared by incorporating different amounts (wt %) of inorganic hetero poly acids (IHAD) into polybenzimidazole (PBI) matrix.
Jin-Woo Lee +7 more
doaj +1 more source
Development of an impact- and solvent-resistant thermoplastic composite matrix [PDF]
Synthesis, moldability and chloroform, acetone and tricresyl phosphate resistance of 16 polymer compositions are described. These aliphatic heterocyclic polymers include polyimides, polybenzimidazoles, and N-arylenepolybenzimidazoles.
Delano, C. B., Kiskiras, C. J.
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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
Spacecraft adhesives for long life and extreme environments [PDF]
High temperature cycling tests of high performance adhesives for aerospace ...
Roper, W. D.
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Hygrothermal behavior of polybenzimidazole
Polymer, 2016 Abstract Poly[2,2’-(m-phenylene)-5,5’-bibenzimidazole] (PBI) is used in extremely high temperature harsh environment applications. It is a unique engineering material that is formed into parts by powder-sintering at temperatures as high as 500 °C. Recently, ever increasing demands for high temperature polymers have led to significant interest in PBI ...
Peng Liu +4 more
openaire +2 more sources
Investigation of resin systems for improved ablative materials Interim report, 10 Jan. - 1 Jul. 1966 [PDF]
Preparation, and evaluation of polyimide sulfone resins, graphite-silica reinforced polyamide resins, and resin resistance to FLOX- methane, and fluorine-hydrogen ...
Burns, E. A. +3 more
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Investigation of resin systems for improved ablative materials [PDF]
Resin systems for matrix material in ablative composite for liquid rocket combustion chambers using fluorine-containing ...
Burns, E. A. +2 more
core +1 more source
Formulated plastic separators for soluble electrode cells [PDF]
, 1979 The fabrication and milling of membranes comprising a hydrochloric acid-insoluble sheet of a mixture of a rubber and a powdered ion transport material are described. The sheet can be present as a coating upon a flexible and porous substrate.
Sheibley, D. W.
core +1 more source