Results 151 to 160 of about 571 (183)
Some of the next articles are maybe not open access.
Aging and Thermal Studies on Epoxy Resin Modified by Epoxidized Novolacs
Polymer-Plastics Technology and Engineering, 2006ABSTRACT Epoxy resins are thermosetting polymers widely used for polymer composites, adhesives, high performance coatings, potting and encapsulation, and numerous other applications. These resins have excellent mechanical and electrical properties, low cure shrinkage, and good adhesion to most substrates. This study is an attempt to improve the thermal
K. P. Unnikrishnan, E. T. Thachil
openaire +1 more source
EPOXY CRESOL NOVOLAC RESIN Low Molecular Weight
2017<div class="section abstract"> <div class="htmlview paragraph">This specification covers a prepolymer in the form of a low molecular weight epoxy cresol novolac (ECN) resin.</div></div>
openaire +2 more sources
Journal of Polymer Science Part A: Polymer Chemistry, 2002
AbstractA novel phosphorus‐containing aralkyl novolac (Ar‐DOPO‐N) was prepared from the reaction of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) first with terephthaldicarboxaldehyde and subsequently with phenol. The chemical structures of the synthesized compounds were characterized with Fourier transform infrared, 1H and 31P NMR, and ...
Ying Ling Liu +3 more
openaire +1 more source
AbstractA novel phosphorus‐containing aralkyl novolac (Ar‐DOPO‐N) was prepared from the reaction of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) first with terephthaldicarboxaldehyde and subsequently with phenol. The chemical structures of the synthesized compounds were characterized with Fourier transform infrared, 1H and 31P NMR, and ...
Ying Ling Liu +3 more
openaire +1 more source
The structure‐property relationship of novolac cured epoxy resin/clay nanocomposites
Polymer Engineering & Science, 2008AbstractIntercalated or exfoliated novolac cured epoxy resin nanocomposites were prepared with two different kinds of layered silicates – montmorillonite (PK‐802) and nontronite (PK‐805). The bifunctional modifiers (PI/BEN or MI/BEN) are used to modify the clays for improvement of the properties of polymer where benzalkonium chloride (BEN) acts as a ...
Tsung‐Yen Tsai +6 more
openaire +1 more source
Studies on the adhesive properties of solid elastomer-modified novolac epoxy resin
International Journal of Adhesion and Adhesives, 2000Abstract Adhesive properties like lap shear strength and T-peel strength of novolac epoxy resin modified with carboxyl terminated butadiene acrylonitrile (CTBN) solid resin and cured with two different curing agents namely, dicyandiamide (DICY) and 3,3′-diaminodiphenyl sulphone (DDS) were evaluated using aluminium adherends.
C Gouri, R Ramaswamy, K.N Ninan
openaire +1 more source
Polystyrene‐modified novolac epoxy resin/clay nanocomposite: Synthesis, and characterization
Polymers for Advanced Technologies, 2019A polystyrene‐modified epoxidized novolac resin/montmorillonite nanocomposite was fabricated and characterized successfully. For this purpose, novolac resin (NR) was epoxidized through the reaction of phenolic hydroxyl group with epichlorohydrin in super basic medium to produce epoxidized novolac resin (ENR). Afterward, a polystyrene was synthesized by
Bakhshali Massoumi +4 more
openaire +1 more source
Synthesis of high purity o-cresol formaldehyde novolac epoxy resins
Polymer Bulletin, 1991The content of total chlorine in o-cresol formaldehyde novolac epoxy resin (CNE), the main resin component for encapsulation formulation, affects the reliability of semi-conductor device greatly and it is one of the major criteria used by the electronic industry in measuring the quality of resins.
Chun-Shan Wang, Zeng-Kun Liao
openaire +1 more source
Thermal degradation of nadic methyl anhydride‐crosslinked novolac epoxy resin
Journal of Polymer Science Part A-1: Polymer Chemistry, 1968AbstractThe physicochemical high‐temperature reactions of a nadic methyl anhydride‐cross‐linked novolac epoxy resin were investigated by means of differential thermal analysis, thermogravimetric analysis, and by other analytical procedures. The thermogravimetric study revealed that decomposition involving weight loss occurred in two stages.
Eli S. Freeman, Aaron J. Becker
openaire +1 more source
Thermal properties of carbon fibre/epoxy composites modified by novolac resin
Materials Research Innovations, 2013AbstractThe influence of novolac resin (NR) contents of 7–18 wt-% on the thermal degradation of the carbon fibre/epoxy composites was investigated by thermogravimetric analysis. The initial decomposition temperature, decomposition temperature at 10 wt-% weight loss T10%, temperature of maximum rate of weight loss Tmax and the decomposition activation ...
H W He, J L Wang, K X Li
openaire +1 more source
Morphology and toughenability of dicyanate–epoxy novolac resin blend modified by polyetherimide
Plastics, Rubber and Composites, 2002Abstract Polyetherimide (PEI) has been found to be an effective modifier for improving the brittleness of a bisphenol A dicyanate-epoxy novolac resin blend. For example, inclusion of 15 wt-% PEI led to 115% increase in fracture toughness and a modest increase in flexural strength, while retaining the flexural modulus of the unmodified cured blend.
B. Guo, D. Jia, W. Fu, Q. Qiu, L. Wang
openaire +1 more source