Inhoudsopgave
What is epoxy epoxide?
Epoxy (/ə-POCK-see/) is either any of the basic components or the cured end products of epoxy resins, as well as a colloquial name for the epoxide functional group. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups.
What is the IUPAC name for epoxy resin?
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. The IUPAC name for an epoxide group is an oxirane .
What are the hardeners for epoxy resin?
In principle, any molecule containing a reactive hydrogen may react with the epoxide groups of the epoxy resin. Common classes of hardeners for epoxy resins include amines, acids, acid anhydrides, phenols, alcohols and thiols.
What is epoxy glue made of?
A syringe of “5-minute” epoxy glue, containing separate compartments for the epoxy resin and the hardener Structure of the epoxide group, a reactive functional group present in all epoxy resins Epoxy refers to any of the basic components or cured end products of epoxy resins , as well as a colloquial name for the epoxide functional group. [1]
Does epoxy resin have VOCs?
Historically, epoxy resins have not been particularly pleasant to use, producing strong odors and containing high levels of volatile organic compounds (VOCs), which are now recognized as a health hazard. Fortunately, modern formulations produce low or zero VOCs and emit less odor.
Why Durdur-a-Flex commercial epoxy floor systems?
Dur-A-Flex’s commercial epoxy floor systems feature high-performance chemical, stain and wear resistance in solid color and decorative options for a modest investment. An epoxy-urethane ESD floor system offering superior abrasion and chemical resistance, making it one of the longest wearing ESD floor systems available in the industry.
What are epoxies made of?
Epoxies consist of a Part A which is the resin/pigment part and the Part B which is the hardener part. Much like epoxy glue when you mix Part A & Part B together they harden to form a very durable coating. That is if you use a good quality epoxy.
What is the best book on epoxy resins?
Epoxy Resins: Chemistry and Technology (Second ed.). New York: Marcel Dekker Inc. p. 794. ISBN 0-8247-7690-9. ^ Bayliss, D.A.; Deacon, D.H. (2002). Steelwork corrosion control (2nd ed.). London: Spon. pp. 13.6.6 Chalking. ISBN 978-0-415-26101-2. ^ Down, J. L. (1984). “The yellowing of epoxy resin adhesives: Report on natural dark aging”.
What are Epoxies used for?
Some epoxies are cured by exposure to ultraviolet light. Such epoxies are commonly used in optics, fiber optics, and optoelectronics . Epoxy systems are used in industrial tooling applications to produce molds, master models, laminates, castings, fixtures, and other industrial production aids.
How to cure epoxy resin?
Curing of epoxy resins is an exothermic reaction and in some cases produces sufficient heat to cause thermal degradation if not controlled. Curing may be achieved by reacting an epoxy with itself (homopolymerisation) or by forming a copolymer with polyfunctional curatives or hardeners.
What is the structure of a cured epoxy glue?
Structure of a cured epoxy glue. The triamine hardener is shown in red, the resin in black. The resin’s epoxide groups have reacted with the hardener and are not present anymore. The material is highly crosslinked and contains many OH groups, which confer adhesive properties