Results 81 to 90 of about 628,978 (424)

Influence of absorbed moisture on the dielectric properties of epoxy resins [PDF]

open access: yes, 2010
The dielectric response of two bisphenol-A epoxy resin systems Araldite CY1301 (Tg ~ 50°C) and Araldite CY1311 (Tg ~0°C) was studied at different levels of absorbed moisture.
Chalashkanov, N. M.   +3 more
core   +1 more source

Versatile Selective Soldering via Molten Metal Printing for Heat‐Sensitive 3D Electronics and Smart Wearables

open access: yesAdvanced Functional Materials, EarlyView.
Selective soldering via molten metal printing enables component integration, even in heat‐sensitive applications across fields like additive manufacturing, sustainable electronics, and smart textiles. This method overcomes the temperature limitations of existing technologies.
Dániel Straubinger   +4 more
wiley   +1 more source

Aminophenoxycyclotriphosphazene cured epoxy resins and the composites, laminates, adhesives and structures thereof [PDF]

open access: yes, 1977
Aminophenoxy cyclotriphosphazenes such as hexakis (4-aminophenoxy) cyclotriphosphazene and tris (4-aminophenoxy)-tris phenoxy cyclotriphosphazene are used as curing agents for epoxy resins.
Fohlen, George M.   +2 more
core   +1 more source

Print‐and‐Plate Architected Electrodes for Electrochemical Transformations Under Flow

open access: yesAdvanced Functional Materials, EarlyView.
Typical flow cell electrodes are composed of stochastic porous carbon, limiting understanding of electrode structure‐performance relationships. This work describes an approach, termed “print‐and‐plate,” to prepare porous electrodes by direct ink writing followed by conformal metal coating.
Dylan M. Barber   +12 more
wiley   +1 more source

Molecular investigation on the compatibility of epoxy resin with liquid oxygen

open access: yesTheoretical and Applied Mechanics Letters, 2020
Conventional fiber reinforced plastics (FRPs) have compatibility issues with solid oxygen while used as a fuel tank, which might cause combustion and explosion.
Mingfa Ren   +3 more
doaj  

A novel method for measuring viscoelastic parameters of epoxy resins under water bath environments using embedded strain gauges

open access: yesPolymer Testing, 2023
Epoxy resins are a class of viscoelastic hygroscopic polymers widely used in plastic packaged devices. Stress relaxation and yielding may occur in plastic packaged devices under thermal-hygro environments, which seriously affect the reliability of the ...
Xinghua Shi   +3 more
doaj  

Thermal curing of an epoxy-anhydride system modified with hyperbranched poly(ethylene imine)s with different terminal groups [PDF]

open access: yes, 2017
New hyperbranched polymers (HBP) have been synthesized by reaction of a poly(ethylene imine) with phenyl and t-butyl isocyanates. These HBPs have been characterized by 1H-NMR (nuclear magnetic resonance of hydrogen) and Fourier transform infrared ...
Acebo Gorostiza, Cristina   +5 more
core   +2 more sources

Shape‐Stabilization of Phase Change Materials with Carbon‐Conscious Poly(hydroxy)Urethane Foams

open access: yesAdvanced Functional Materials, EarlyView.
Poly(hydroxy)urethane (PHU) foam, derivable from carbon dioxide (CO2) and bio‐based resources, is a promising material platform for shape‐stabilizing phase change materials (PCMs). We demonstrate the encapsulation of both paraffins and calcium chloride hexahydrate in PHU foam, achieving 48 stable thermal cycles by introducing 5 wt.% barium carbonate ...
Minjung Lee   +5 more
wiley   +1 more source

Mechanical characterization of different epoxy resins enhanced with carbon nanofibers

open access: yesFracture and Structural Integrity, 2020
Epoxy with carbon nanofibers (CNFs) are effective nano enhanced materials that can be prepared by easy and low-cost method. The present paper compares the improvements, in terms of flexural and viscoelastic properties, of two epoxy resins reinforced with
Paulo Sérgio Pina dos Santos   +3 more
doaj   +1 more source

Enhancing Thermal and Water Absorption Properties of Unsaturated Polyester and Epoxy by Nanocarbon Black Powder [PDF]

open access: yesEngineering and Technology Journal, 2013
This paper covers the effect of nanocarbon black powder (N220) on the some physical properties (thermal conductivity and water absorption) of unsaturated and epoxy resins filled with nanocarbon black powder (N220).
Mohammed S. Hamza   +2 more
doaj   +1 more source

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