Results 181 to 190 of about 596,499 (212)
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Moisture absorption and hygrothermal aging in a bismaleimide resin
Polymer, 2001Moisture diffusion in a BMI resin has been investigated by submerging thin specimens in water. The weight gain of the neat resin deviates significantly from Fick's law in that the uptake continues to slowly increase over an extended time scale. A two-stage diffusion model can successfully fit the experimental data.
Li-Rong Bao +2 more
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Investigations on hygrothermal aging of thermoplastic polyurethane material
Materials & Design, 2009Abstract In this investigation, the absorption and diffusion of water in thermoplastic polyurethane (TPU) was studied. Water-sorption experiments, physical and mechanical property tests were performed after immersion in water at a set temperature of 70 °C for up to 6 months.
A. Boubakri +3 more
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International Journal of Fatigue, 2002
Abstract The objective of this study was to examine the effects of hygrothermal aging on the durability of a graphite/epoxy woven composite material system. The study was part of a larger project in which the objective was to evaluate and model the effects of moisture, temperature, and combined hygrothermal conditions on the strength and life of a ...
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Abstract The objective of this study was to examine the effects of hygrothermal aging on the durability of a graphite/epoxy woven composite material system. The study was part of a larger project in which the objective was to evaluate and model the effects of moisture, temperature, and combined hygrothermal conditions on the strength and life of a ...
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Hygrothermal Aging Effect on Fatigue Behavior of GLARE
Journal of Reinforced Plastics and Composites, 2008This article reports on the experimental characterization of the fatigue behavior of GLARE laminate taking into account the hygrothermal effects. The environmental factors can limit the applications of composites by deteriorating the mechanical properties during service.
Da Silva, D. A. +2 more
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Hygrothermal Aging Effects on Buried Molecular Structures at Epoxy Interfaces
Langmuir, 2013Interfacial properties such as adhesion are determined by interfacial molecular structures. Adhesive interfaces in microelectronic packages that include organic polymers such as epoxy are susceptible to delamination during accelerated stress testing.
John N, Myers +4 more
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The deleterious effect of cyclic hygrothermal aging on nanocomposite adhesives
The Journal of Adhesion, 2020The vulnerability of epoxy-based adhesives and resins to hygrothermal conditions limits their applicability in aggressive environments.
Hadi Khoramishad +2 more
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Hygrothermal Aging Behavior of Fiber-Reinforced Composites
2019Composite materials are ideal for engineering applications such as aircraft, spacecraft, automobiles, ship structures, roofs, wall panels, fishing rods, tennis rackets, and even retrofitting of buildings and bridges due to their high strength-to-weight and stiffness-to-weight ratios.
Shishir Kumar Sahu, Manoj Kumar Rath
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Strength of Epoxy/Glass Interfaces after Hygrothermal Aging
The Journal of Adhesion, 2005ABSTRACT The stability of epoxy/glass interfaces subjected to hygrothermal aging was assessed using a fracture-mechanics approach. An epoxy system consisting of diglycidyl ether of bisphenol F cured with 2-ethyl-4-methyl-imidazole was bonded to borosilicate glass adherends that were treated with various types of adhesion promoters to provide a variety ...
Orasa Khayankarn +3 more
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Moisture uptake of a polycarbonate blend exposed to hygrothermal aging
Polymer Degradation and Stability, 2011As an extension of an earlier study on aging of a polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blend, this paper has explored the roles of two competing phenomena, physical aging and moisture diffusion, during hygrothermal aging. Moisture absorption experiments at four different relative humidity conditions were compared with full immersion ...
Mojtaba Haghighi-Yazdi +2 more
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Development of hygrothermal accelerated ageing cycles
2019The lack of durability assessment procedures directly applicable to thermal mortars motivated the development of durability assessment procedures. The combination of the analysis of existing procedures with hygrothermal simulation allowed the development of accelerated ageing hygrothermal cycles, applied to thermal rendering systems, taking into ...
Joana Maia, Nuno Ramos, R. Veiga
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