Cyanate esters are chemical substances generally based on a bisphenol or novolac derivative, in which the hydrogen atom of the phenolic OH group is substituted by a cyanide group. The resulting product with an -OCN group is named a cyanate ester. Cyanate esters can be cured and postcured by heating, either alone at elevated temperatures Full Article…
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DCPD
DCPD or Dicyclopentadiene to give its correct name is a chemical compound with formula C10H12. At room temperature, it is a white crystalline solid with a camphor-like odor. Its energy density is 10,975 Wh/l. Dicyclopentadiene is coproduced in large quantities in the steam cracking of naphtha and gas oils to ethylene. The major use is Full Article…
Vinyl Ester Resin
Vinyl Ester, or Vinylester, is a resin produced by the esterification of an epoxy resin with an unsaturated monocarboxylic acid. The reaction product is then dissolved in a reactive solvent, such as styrene, to a 35 – 45 percent content by weight. It can be used as an alternative to polyester and epoxy materials in Full Article…
Polyester Resins
Polyester resins are unsaturated resins are formed by the reaction of dibasic organic acids and polyhydric alcohols. They are used in sheet moulding compound, bulk moulding compound, Wall panels fabricated from polyester resins reinforced with fibreglass so-called fibreglass reinforced plastic (FRP) They tend to have yellow or blue tint, and are suitable for most backyard Full Article…
Epoxy Resins
Epoxy or polyepoxide is a thermosetting polymer formed from reaction of an epoxide “resin” with polyamine “hardener”. Epoxy has a wide range of applications, including fiber-reinforced plastic materials and general purpose adhesives. Chemistry Epoxy is a copolymer; that is, it is formed from two different chemicals. These are referred to as the “resin” and the Full Article…