Classification of resin
Classification by resin synthesis reaction In this way, the resin can be divided into addition polymers and polycondensates. The addition polymer refers to a polymer obtained by addition polymerization, and the chemical structure of the link structure is the same as that of the monomer, such as polyethylene, polystyrene, polytetrafluoroethylene, and the like. The polycondensate refers to a polymer obtained by a condensation polymerization reaction, and the chemical formula of the structural unit is different from that of the monomer, such as a phenol resin, a polyester resin, a polyamide resin, or the like. Classification by resin molecular chain According to this method, the resin can be classified into a carbon chain polymer, a hetero chain polymer, and an elemental organic polymer. The carbon chain polymer refers to a polymer in which the main chain is entirely composed of carbon atoms, such as polyethylene, polystyrene, or the like. The heterochain polymer refers to a polymer composed of atoms of two or more elements of carbon and oxygen, nitrogen, sulfur, and the like, such as polyoxymethylene, polyamide, polysulfone, polyether, and the like. The elemental organic polymer means that the main chain does not necessarily contain carbon atoms, and is mainly composed of atoms of elements such as silicon, oxygen, aluminum, titanium, boron, sulfur, phosphorus, and the like, such as silicone. Classified by resin properties Thermosetting resins (such as glass fiber reinforced plastics) are: unsaturated polyester/vinyl ester/epoxy/phenolic/bismaleimide (BMI)/polyimide resin. Thermoplastic resin: polypropylene (PP) / polycarbonate (PC) / nylon (NYLON) / polyether ether ketone (PEEK) / polyether sulfone (PES) and the like. Synthetic resin is a type of high molecular polymer synthesized by hand. The most important application of synthetic resins is in the manufacture of plastics. In order to facilitate processing and improve performance, additives are often added, and sometimes used directly for forming, so it is often synonymous with plastic. Synthetic resins are also the basic raw materials for the manufacture of synthetic fibers, coatings, adhesives, and insulating materials. There are many kinds of synthetic resins, among which polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP) and ABS resin are the five general-purpose resins, and are the most widely used synthetic resin materials. Resin Crafts The resin materials are used in the modeling materials of these two groups of crafts, and the smoothness and bright texture of the two sets of crafts make full use of the advantages of the material. Single Chafer Mobile Cutlinary Station,Chafer Mobile Cutlinary Station,Mobile Cutlinary Station,Chafing Dish Buffet Shaoxing Biaoyi Hardware Products Co., Ltd. , https://www.byeob.com