The introduction of the classification of the heat of the resin by the resin

  According to the change of the heating of resin by classification

  (a) thermosetting plastics

  Thermosetting plastic material refers to a type of plastic that can't be heated and softened after forming.. In the process of its resin, the linear pre polymer, the chemical crosslinking reaction occurred in the process of chemical crosslinking, made the product interior become three-dimensional network structure, which had the characteristics of insoluble and non melting.. Such as phenolic resin, amino resin, epoxy resin and unsaturated resin, etc..

  (two) thermoplastic

  Thermoplastic material refers to a type of plastic that can be renewed after molding and re - softening the chemical composition of the chemical composition. The resin is linear structure, and it has no chemical changes in the process, which has the characteristics of the melting and the soluble..

  This kind of resin, specific such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyamide, polycarbonate, poly formaldehyde, polyester, polyphenylene oxide, polymethyl methacrylate, polyurethane, fluorine plastic, polyphenylene sulfide, polysulfone (PSF) and polyimide etc.

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