Epoxy resins - an overview | ScienceDirect Topics
Epoxy resin is a type of synthetic resin including a wide variety, and with continuous development; it can be used as adhesives, coatings, fluxes, casting plastics and the matrix resin of fiber reinforced composites, and is widely used in mechanical, electrical, chemical, aerospace, automotive, building and other …Get Price Leave a Comment Read More
Phenolic resins - an overview | ScienceDirect Topics
Phenolic resins are manufactured from phenol and formaldehyde. Reaction of phenol with less than equimolar proportions of formaldehyde under acidic conditions gives novolac resins containing aromatic phenol units linked predominantly by methylene bridges.Get Price Leave a Comment Read More
epoxy group - an overview | ScienceDirect Topics
Epoxy resins are characterized by their epoxy-equivalent weights (EEW), that is, the weight of resin per epoxy group. Thus, DGEBA, which has a molecular weight of 340 grams and two epoxy groups , would have an epoxy …Get Price Leave a Comment Read More
What is an Epoxy Phenol Novolac (EPN)? - Definition from ...
An epoxy phenol novolac (EPN) is an epoxy resin where the epoxide functional group is attached to the phenolic oxygen of a phenolic novolac. As such, each phenol oxygen of the novolac resin is attached with a –CH 2-(C 2 H 3 O) group, where -(C 2 H 3 O) is a three-membered epoxide ring.Get Price Leave a Comment Read More
Epoxy Resins Group - information sheet - Canada.ca
The Government of Canada conducted a science-based evaluation, called a screening assessment, of the Epoxy Resins Group to address the potential for harm to Canadians and to the environment. Under the Canadian Environmental Protection Act, 1999 (CEPA 1999), the risk posed by a substance isGet Price Leave a Comment Read More
Synthesis of aralkyl novolac epoxy resins and their ...
A series of phenol-based and naphthol-based aralkyl epoxy resins were synthesized by the condensation of p-xylylene glycol with phenol, o-cresol, p-cresol, or 2-naphthol, respectively, followed by the epoxidation of the resulting aralkyl novolacs with epichlorohydrin.Get Price Leave a Comment Read More
NORTH AMERICA EPOXY RESINS - brenntag.com
standard liquid epoxy resin and semi-solid epoxy novolac resins. When used in combination with a fast curing agent no post-cure is required and thermosets are obtained with excellent mechanical and especially solvent resistance properties.Get Price Leave a Comment Read More
Thermal properties of carbon fibre/epoxy composites ...
Introduction. Epoxy resin is a commonly used polymer matrix for such materials as carbon fibre reinforced epoxy composites. They are widely used in a variety of applications because of their high mechanical strength and low density.Get Price Leave a Comment Read More
Curing and pyrolysis of cresol novolac epoxy resins ...
INTRODUCTION Epoxy is the most extensively used high-performance polymer in the world. It has excellent characteristics, such as high chemical, moisture, and corrosion resistance, outstanding adhesion properties, low shrinkage upon curing, super mechanical properties, and low electrical conductivity.Get Price Leave a Comment Read More
Flexible Epoxy Novolac Coatings: Use of Cardanol-based ...
2017-06-21 · Flexible epoxy novolac coatings were developed by reacting an epoxy novolac resin, poly[(phenylglycidyl ether)-co-formaldehyde] (PPGEF) with an amine curing agent, 4,4′-diamino-3,3′-dimethyldicyclohexyl methane (BMCHA), cardanol based reactive diluent (Cardolite NC-513) and two different cardanol …Get Price Leave a Comment Read More
Aging and Thermal Studies on Epoxy Resin Modified by ...
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 substratesGet Price Leave a Comment Read More