Comparing thermoplastics, thermosets and elastomers

Thermoplastics repeated melting fusible the amount of crystallites determines the density and mechanical properties under strong mechanical stress they tend to creep and show lasting deformation the strength value decreases with increased heating can be transformed and deformed several times Thermosets do not melt cannot be fused number of links is decisive for mechanical properties can be deformed under mechanical load, but regain their original form after load is removed only behave elastically in a relatively narrow upper temperature range, therefore more heat stable can only be deformed once  Elastomers do not melt cannot be fused number of links is decisive for the rubber hardness can be strongly deformed under mechanical stress remain elastic down to low...