Two chemicals can react when heated and then cool and stiffen in molds {thermosetting plastic}|. Thermosetting plastics melt only at high temperatures.
types
Thermosetting plastics include acrylonitrile, polyethylene, polypropylene, polyvinyl chloride, polyvinyl alcohol, PET, and Teflon. Strong thermosetting plastics are lexan {polycarbonate} and Zytel-ST nylon. Thermosetting plastics can be insulators {phenolic} {Bakelite} [1909], dishes {melamine}, and cups {polystyrene} {Styrofoam}. Clear products {acrylic plastic} are Plexiglas {polymethyl-methacrylate} (PMMA), Orlon, and Acrilan. Polyamide {nylon} can be in stockings and toothbrushes. Dynel is part vinyl and acrylic. Thermosetting plastic can be from urea {urea derivative}.
Practical Affairs>Machine>Industrial Materials>Organic Chemical>Polymer
7-Machine-Industrial Materials-Organic Chemical-Polymer
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0224