Results 11 to 20 of about 376 (154)
Preparation of a Novel Phosphorus-Nitrogen Containing Novolac Curing Agent for Epoxy Resin and flame-retardancy of its cured epoxy resin [PDF]
Designed Monomers and Polymers, 2019 In this study, DICY (dicyandiamide)-containing novolac (NN) was first prepared, and then DOPO (9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) was introduced to react with the unsaturated bonds from DICY to obtain a novel phosphorus-nitrogen ...
Hui Qiao +5 more
doaj +3 more sources
Molecular Mechanism of Physical and Mechanical Improvement in Graphene/Graphene Oxide‐Epoxy Composite Materials [PDF]
ChemPhysChem, Volume 25, Issue 24, December 16, 2024.The effect of type and the ratio of epoxy matrix, functional group type and amount on graphene oxide (GO), GO mass ratio, aggregation and size of GO sheets were studied to elucidate molecular mechanism of physical and mechanical improvement in epoxy‐Gr/GO composites.
Deniz Budak +6 more
wiley +2 more sources
Synthesis and Properties of Organosilicon-Grafted Cardanol Novolac Epoxy Resin as a Novel Biobased Reactive Diluent and Toughening Agent [PDF]
ACS Omega, 2018 Shuping Huo +6 more
doaj +2 more sources
Cure Kinetics of Epoxy-Novolac Resin Containing Tetrabromo-bisphenol-A as a Flame Retardant by Isothermal Calorimetry Method [PDF]
علوم 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
eXPRESS Polymer Letters, 2014 The curing kinetics and mechanism of epoxy novolac resin (DEN) and modified epoxy novolac resin (MDEN) with methanol etherified amino resin were studied by means of differential scanning calorimetry (DSC), Fourier transforminfrared (FT-IR) spectroscopy ...
S. F. Zhao +3 more
doaj +1 more source
Reinforcing styrene butadiene rubber with lignin-novolac epoxy resin networks
eXPRESS Polymer Letters, 2015 In this study, lignin-novolac epoxy resin networks were fabricated in the styrene butadiene rubber (SBR) matrix by combination of latex compounding and melt mixing. Firstly, SBR/lignin compounds were co-coagulated by SBR latex and lignin aqueous solution.
P. Yu +6 more
doaj +1 more source
Advances 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
E-Journal of Chemistry, 2009 Phenol-based novolac resins were synthesized with different mole ratios of phenol-to-formaldehyde. These novolac resins were epoxidized with molar excess of epichlorohydrin at 120 °C in basic medium.
Hemant Kumar +3 more
doaj +1 more source
A new strategy for the synthesis of modified novolac resin and its polymer/clay nanocomposite
eXPRESS Polymer Letters, 2019 A novel epoxy nanocomposite composed of epoxidized novolac (ENR), epoxidized polystyrene (EPSt), and nanoclay was fabricated and characterized successfully.
R. Mohammad-Rezaei +4 more
doaj +1 more source
Rheological study of the curing kinetics of epoxy–phenol novolac resin
Journal 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