Composite matrix cured by heat and pressure or with a catalyst into an infusible and insoluble material Once cured, a thermoset cannot be returned to the uncured state
Resin that, when cured by application of heat or chemical means, changes into a substantially infusible and insoluble material Thermosetting resins will soften but will not dissolve in any solvents
A jacketing material where the molecules have been cross-linked (interlocked) through exposure to heat or irradiation Once the material is "set," it cannot be softened or melted by re-heating Thermosets include Neoprene and Hypalon
A material that will undergo or has undergone a chemical reaction by the action of heat, catalysts, ultraviolet light, etc , leading to a relatively infusible and cross-linked state Typical of the plastics in the thermosetting family are the epoxies, glytals, melamines, urea formaldehyde resins, and phenolics Thermosets are typically supplied in powder, granules, or modules, and are normally processed by compression molding Thermosets cannot be remolded once processed
A plastic that undergoes a non-reversible chemical reaction when it is cured Subsequent heating will not melt it Examples are polyester, phenolic, melamine, epoxy, and silicone
A material that can undergo a chemical reaction by the action of heat or catalyst, leading to a relatively infusible and cross-linked state Thermoset polyurethane is not altered by elevated temperatures until reaching the decomposition point
a material that solidifies or "sets" irreversibly when heated This property is usually associated with cross-linking of molecules induced by heat or radiation
A product that is, once solidified, is very difficult or impossible to re-liquefy As opposed to Thermoplastic materials that may be re-liquefied usually by the application of heat
having the property of becoming permanently hard and rigid when heated or cured; "the phenol resins and plastics were the original synthetic thermosetting materials"
1) To cure through chemical reaction by heat to a point of not being re-softened by subsequent heating 2) A resin which cures by chemical reaction with the same results