5/29/2023 0 Comments Thermoplastic yield strengthThese differences are typical rather than universal, however, and there are hundreds of different thermoplastics and thermosets, each with specific materials properties such as plastic strain rate and service temperature. As the table below shows, thermoplastics and thermosets also differ in terms of their resistance to forces, heat and chemicals. These aren’t their only differences, however. Thermoplastics can be remelted and reused, but thermoset materials cannot. Broadly speaking, the main difference between thermoplastics and thermoset plastics is how they behave when heated. Product designers are more concerned about material properties than molecules, but the structure of a polymer’s strands affects its processing and performance. Elastomers have less organized structures with spaghetti-like strands that provide greater viscosity and elasticity. Under a microscope, the structure of a thermoplastic resembles a railroad track while a thermoset material looks like a honeycomb. Like elastomers, another class of polymer, thermoplastics and thermosets both consist of long, repeating chains of molecules. Thermoplastics and thermoset plastics are classes of polymers used in injection molding, CNC machining, 3D printing, and urethane casting.
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