Chapter Eight - Definitions Flashcards
What is alkyd?
A type of resin formed by the reaction of polyhydric alcohols and polybasic acids, part of which is derived from saturated or unsaturated oils or fats.
What is convertible coatings ?
Coatings that cure by one of several polymerization mechanisms, even when solvent evaporation is also involved.
What is chlorinated rubber?
One of the earliest corrosion resistant coatings; developed in the 1930s, they were widely used in many industries. Chlorinated rubber contains a large amount of VOC and it’s use has been almost eliminated in most parts of the world.
What is curing?
A chemical process of developing the intended properties of a coating or other material(e.g., resin) over a period of time.
What is an epoxy?
A type of resin formed by the reaction of aliphatic or aromatic polyols ( such as bisphenol) with epichlorohydrin and characterized by the presence of reactive oxirane end groups.
What is furan?
A type of resin formed by the polymerization or poly condensation of furfural, furfuryl alcohol, or other compounds containing a furan ring.
What is latex emulsion?
Coating that can contain a number of different resin particles that are covered with an emulsifier to keep them apart in the liquid stage .
What is a nonconvertible coating?
Coatings that cure by evaporation of the solvent. There is no chemical change to the resin as they transform from the liquid to solid state.
What is phenol?
An organic chemical used in a very wide variety of manufactured items. Also known as carbolic acid
What is thermosetting ?
A coating that is formed as a result of a chemical cross-linking reaction (oxidation, polymerization, chemical additive reaction, heat, or a combination of these).
What is thermoplastic?
A material capable of being repeatedly softened by heat and hardened by cooling.
What is acrylic?
A type of resin polymerized from acrylic acid, methacrylic acid, esters of these acids, or acrylonitrile.
