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The family of basic elements or dried end products known as epoxy includes epoxy resins. The collection of reactive prepolymers and polymers known as epoxy resins, commonly referred to as polyepoxides, include epoxide groups. Epoxy is another name for the functional group made up of epoxides. [1] An oxirane is the term given to an epoxide group by the IUPAC. Epoxy resins can react (cross-link) with a variety of co-reactants, such as polyfunctional amines, acids (including acid anhydrides), phenols, alcohols, and thiols, as well as with themselves through catalytic homopolymerization (usually called mercaptans). The cross-linking reaction is frequently referred to as curing, and these co-reactants are frequently referred to as hardeners or curatives. A thermosetting polymer is created when polyepoxides react with one another or with multifunctional hardeners. These polymers frequently have good mechanical properties and high thermal. Epoxy is the family of basic components or cured end products of epoxy resins. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. The epoxide functional group is also collectively called epoxy. [1] The IUPAC name for an epoxide group is an oxirane. Epoxy resins may be reacted (cross-linked) either with themselves through catalytic homopolymerisation, or with a wide range of co-reactants including polyfunctional amines, acids (and acid anhydrides), phenols, alcohols and thiols (usually called mercaptans). These co-reactants are often referred to as hardeners or curatives, and the cross-linking reaction is commonly referred to as curing. Reaction of polyepoxides with themselves or with polyfunctional hardeners forms a thermosetting polymer, often with favorable mechanical properties and high thermal and chemical resistance. Epoxy has a wide range of applications, including metal coatings, composites,[2] use in electronics, electrical components (e.g. for chips on board ), LEDs, high-tension electrical insulators, paint brush manufacturing, fiber-reinforced plastic materials, and adhesives for structural[3] and other purposes.[4][5] The health risks associated with exposure to epoxy resin compounds include contact dermatitis and allergic reactions, as well as respiratory problems from breathing vapor and sanding dust, especially when not fully cured.[
