Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5207887 | Progress in Polymer Science | 2016 | 164 Pages |
Abstract
Epoxy resins are characterized by both the flexibility of implementation and the qualities of the polymers obtained. Key materials in health-, mobility- and energy related technologies, these resins are heavily present in high-performance composites, electronic boards, adhesives and coatings. Currently, a large number of resins and hardeners are available on the market or described in the literature and an interesting point is that almost any combination of the two is possible. Common to all these recipes and processes is that a liquid (or soluble) resin at some point becomes insoluble and solid. It is very important to know how to manage this transition, physically known as the gel point, as it is the point after which the shape of the object is irreversibly set. Taking into account the variety of epoxy polymerization processes - polyaddition, anionic or cationic polymerization - we detail a number of methods to program the occurrence of the gel point and how this type of control affects the structure of the growing network.
Keywords
HBPtgelReaction Injection MoldingDETAHBF4DGEBA4-chloroanilineBPO2,2′-azobis(isobutyronitrile)Diglycidyl ether of bisphenol AAIBNBPADDSGPEACEVOCCTAPOMDSCECCPCL18-Crown-61,4-butanediolrTMTetrafluoroboric acidUltravioletbenzoyl peroxideBisphenol AVolatile organic compoundglass transition temperatureDiethylenetriamineDicyandiamideEpoxy resinsResin transfer moldingRIMChain transfer agentTTT diagramWeight average molecular weightNumber average molecular weightPoly(ɛ-caprolactone)poly(ethylene oxide)PolyoxometalateHyperbranched polymersPEOGelationdynamic scanning calorimetry
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Thomas Vidil, François Tournilhac, Simone Musso, Agathe Robisson, Ludwik Leibler,