Results 21 to 30 of about 571 (183)

Carbon / Epoxy Resin Based Elastic Memory Composites

open access: yesEurasian Chemico-Technological Journal, 2012
Elastic memory composites were processed from shape memory epoxy resins and carbon fabric reinforcements. Three different types of epoxies (diglycidyl ether of bisphenol-A, tris(4-glycidyloxy phenyl)methane, and epoxy novolac) were used as matrices ...
J. D. Merline, C. P. Reghunadhan Nair
doaj   +1 more source

Cure Kinetics of Epoxy-Novolac Resin Containing Tetrabromo-bisphenol-A as a Flame Retardant by Isothermal Calorimetry Method [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2014
Cure kinetics of an epoxy-novolac resin with tetrabromo-bisphenol-A, as a flame retardant, was investigated in the presence of nadic methyl anhydride as a curing agent. Different amounts of benzyl dimethyl amine were used as accelerator.
Fatemeh Shokrolahi   +2 more
doaj   +1 more source

Effect of Novolac Resin and Modified Novolac Resin on Mechanical Properties of Carbon Fiber/Epoxy Composites

open access: yesAdvances in Polymer Technology, 2014
ABSTRACTThe effects of novolac resin (NR) and modified novolac resin (MNR) on the stiffness and toughness of the carbon fiber (CF)/epoxy composites were studied when using these two kinds of modifiers with different physical and chemical performance. The results show that both NR and MNR are excellent toughening agents for the CF/epoxy composites, and ...
Hongwei He, Feng Gao, Kaixi Li, Shen Yan
openaire   +1 more source

Rheological study of the curing kinetics of epoxy–phenol novolac resin

open access: yesJournal of Applied Polymer Science, 2006
AbstractThe curing reaction of an epoxy–phenolic resin under different conditions was monitored using rheological measurements. The evolution of viscoelastic properties, such as storage modulus, G′, and loss modulus, G″, was recorded. Several experiments were performed to confidently compare the rheological data obtained under varied curing conditions ...
Auad, María L.   +3 more
openaire   +2 more sources

Water absorption in novolac epoxy resins studied by positron annihilation [PDF]

open access: yesLe Journal de Physique IV, 1993
Water absorption rates of four kinds of epoxy resins cured with phenol novolac (PH) were compared with the results of positron annihilation lifetime measurements (PAL). Three samples : cresol novolac (CR), tetra-methyl-biphenol (TMB) and bis-phenol A (BA), showed almost similar absorption rates, while tris-hydroxy-phenyl-methane (THPM) absorbed water ...
Miura, T.   +6 more
openaire   +2 more sources

Mechanical properties of reactively flame retarded cyanate ester/epoxy resin blends and their carbon fibre reinforced composites

open access: yeseXPRESS Polymer Letters, 2016
Cyanate ester/epoxy resin (CE/EP) carbon fibre reinforced composites consisting of diglycidyl ether of bisphenol A (DGEBA) and novolac type cyanate ester (CE) were prepared and reactively flame retarded using epoxy functional adduct of DGEBA and 9,10 ...
A. Toldy   +3 more
doaj   +1 more source

Effect of Matrix Properties on Quasi‐Static and Fatigue Properties of Thermosetting Polyurethane and Its GFRP Composites

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 5, Page 1929-1943, May 2026.
ABSTRACT In this study, the influence of resin cross‐link density on thermomechanical properties and fatigue behavior of polyurethane resins and glass fiber‐reinforced polyurethane (PUR‐GFRP) composites was investigated. This material is a candidate for renewable energy applications like rotor blades in wind turbines.
Martin Demleitner   +5 more
wiley   +1 more source

Nanocomposites of Barium Titanate Nanoparticles Embedded in Thermosetting Polymer Matrices (Novolac Resin/Unsaturated Polyesters/Epoxy Resin): A Comparative Study

open access: yesChemEngineering, 2019
Polymer matrix nanocomposites with embedded ferroelectric barium titanate particles were developed and characterized. The utility of such nanocomposites is the energy storage capability that they exhibit, besides their low weight and cost, in comparison ...
Ioannis A. Asimakopoulos   +2 more
doaj   +1 more source

Patterning of Lead Halide Perovskite Device Stacks on CMOS Readout Using Selective Microfabrication Protocols

open access: yesAdvanced Materials, Volume 38, Issue 21, 13 April 2026.
We present a microfabrication and integration strategy for lead halide perovskite photodetectors on electronic readouts. Standard photolithography, aqueous processing, selective transparent electrode etching, and plasma‐assisted pixel isolation enable precise monolithic integration of patterned 400 × 400 perovskite microphotodetector arrays on a CMOS ...
Sergey Tsarev   +14 more
wiley   +1 more source

Epoxy Resins Cross-Linked with Bisphenol A/Methylenedianiline Novolac Resin Type: Curing and Thermal Behavior Study

open access: yes, 2016
A novolac type resin was synthesized from bisphenol A, 4,4′-methylenedianiline, and formaldehyde in the presence of HCl. The chemical structure was confirmed using elemental analysis, FT-IR spectroscopy, and 1H NMR spectroscopy.
Ioan Bicu (1875634)   +2 more
core   +1 more source

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