Results 151 to 160 of about 1,147 (199)
Investigation of the Mechanical Properties of Composite Honeycomb Sandwich Panels after Fatigue in Hygrothermal Environments. [PDF]
Polymers (Basel)Zhao M, Jin H, Yun Z, Meng Z, Zhang W.
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A strategy for biomass-derived matrix with facile moulding and closed-loop recycling capabilities. [PDF]
Nat CommunHe F +8 more
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Durability of Silicone-Based Waterproofing Membranes in Hempcrete Systems Under Environmental Exposure: Role of Leachate Chemistry and Fiber Treatment. [PDF]
Polymers (Basel)Esmizadeh E +6 more
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Indoor temperature and humidity prediction in residential buildings: A review of the white box and black box modeling techniques. [PDF]
Build EnvironHampo CC, Schinasi LH, Hoque S.
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Hygrothermal aging behavior and aging mechanism of carbon nanofibers/epoxy composites
Construction and Building Materials, 2021Abstract In this study, carbon nanofibers (CNFs)/epoxy composites incorporating different contents of CNFs were fabricated and immersed in distilled water for 180 days. Water absorption test, tensile tests, scanning electron microscopy (SEM) observation, dynamic mechanical analysis (DMA), and Fourier transform infrared (FTIR) spectroscopy were ...
Yanlei Wang, Baolin Wan, Baoguo Han
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Journal of Membrane Science, 2009
The membrane durability is a critical issue for the development of Proton Exchange Membrane Fuel Cells (PEMFC). Since PEMFC in situ tests were not conclusive to determine Nafion (R) membrane degradation mechanism, ex situ aging tests were performed on Nafion (R) 112 in practical fuel cell usage conditions.
Collette, F. M. +3 more
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The membrane durability is a critical issue for the development of Proton Exchange Membrane Fuel Cells (PEMFC). Since PEMFC in situ tests were not conclusive to determine Nafion (R) membrane degradation mechanism, ex situ aging tests were performed on Nafion (R) 112 in practical fuel cell usage conditions.
Collette, F. M. +3 more
openaire +2 more sources
Hygrothermal aging of a filled epoxy resin
2007 IEEE International Conference on Solid Dielectrics, 2007The hygrothermal conditioning of an epoxy resin at 80degC under 80% RH has been followed by weight measurements, therm ogravimetric analysis (TGA) and dynamical mechanical analysis (DMA). The samples are either filled with 60% by weight of silica flour or are not filled.
E. Brun +4 more
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Hygrothermal Aging Effects in Cured Epoxies
British Polymer Journal, 1986AbstractThe effect of relatively severe hygrothermal aging on the sorption and also the diffusion of water at 40°C has been studied for a number of epoxy networks comprising tetraglycidyl 4,4′‐diaminodiphenyl methane, and the curing agent 4,4′‐diaminodiphenyl sulphone, 4,4′‐diaminodiphenyl methane and 2,2′‐dichloro‐4,4′‐diaminodiphenyl methane.
James A. Barrie +3 more
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AIP Conference Proceedings, 2010
Polyamides are moderately polar polymers absorbing significant amounts of moisture in wet environments. As an example, PA 6,6 uptakes more than 8% by weight of moisture at ambient temperature in 100% RH. In addition, amide is a well‐known hydrolysable group. It is thus suspected that such a polymer perishes by hygrothermal degradation.
Chaker El Mazry +5 more
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Polyamides are moderately polar polymers absorbing significant amounts of moisture in wet environments. As an example, PA 6,6 uptakes more than 8% by weight of moisture at ambient temperature in 100% RH. In addition, amide is a well‐known hydrolysable group. It is thus suspected that such a polymer perishes by hygrothermal degradation.
Chaker El Mazry +5 more
openaire +1 more source