Relative molecular weight Uncertain but usually high, solid, medium solid, pseudo solid, and sometimes liquid at room temperature Organic matter 。 With softening or Melting temperature Range, in External force action There is a tendency to flow below, and the fracture is often shell shaped. Broadly, it refers to polymers or prepolymers used as plastic substrates. Generally insoluble in water, soluble in Organic solvent 。 It can be divided into Natural resin and synthetic resin ； According to the characteristics of different processing behaviors Thermoplastic resin and Thermosetting resin Points. By Source
Resin has Natural resin And synthetic resin. Natural resin refers to the amorphous form obtained from the secretions of animals and plants in nature organic compound Quality, such as rosin , amber Shellac Etc. synthetic resin It refers to the chemical synthesis of simple organic substances or some natural product through chemical reaction The resulting resin products, such as phenolic resin 、 polyvinyl chloride Resin, among which synthetic resin is the main component of plastics. According to this method, resins can be divided into Adduct and Polycondensate 。 Additive refers to the polymer produced by addition polymerization. The chemical formula of its chain link structure is the same as that of monomer, such as polyethylene 、 polystyrene 、 teflon Etc. Condensate refers to the polymer prepared by condensation polymerization Structural unit The chemical formula of is different from that of monomer, such as phenolic resin 、 polyester resin 、 Polyamide resin Etc. Composed by molecular main chain
Carbon chain polymer means that the main chain is composed of carbon atom Polymer, such as polyethylene, polystyrene, etc. Heterochain polymer refers to a polymer whose main chain is composed of carbon and atoms of more than two elements, such as oxygen, nitrogen and sulfur Polyoxymethylene 、 polyamide 、 polysulfone 、 polyether Etc. Elemental organic polymer means that the main chain does not necessarily contain carbon atoms, but is mainly composed of atoms of silicon, oxygen, aluminum, titanium, boron, sulfur, phosphorus and other elements, such as organic silicon.
By nature
Synthetic resin is a kind of synthetic resin Polymer 。 The most important application of synthetic resins is the manufacture of plastics. In order to facilitate processing and improve performance, additives are often added and sometimes directly used for processing and forming, so it is often synonymous with plastic. Synthetic resin or manufacturing Synthetic fibre , paint, adhesive Insulating material Basic raw materials such as. There are many kinds of synthetic resins, among which polyethylene （PE）、 polyvinyl chloride （PVC）、 polystyrene (PS), polypropylene (PP) and ABS resin It is one of the five general resins and is the most widely used synthetic resin material. Resin materials are used in the modeling materials of this group of handicrafts, whose smooth lines and bright texture make full use of the advantages of their materials.
ABS resin yes Acrylonitrile butadiene styrene copolymer , English name is Acrolonitrile butadine style (short for ABS ）It is a large amount of general-purpose resin. After modification (adding additives or alloys, etc.) to improve the performance, ABS belongs to engineering plastic ， ABS alloy Large output, variety and wide application are the main Modified plastics 。 ABS is light yellow granular or beaded Opaque Resin, non-toxic, tasteless Water absorption Low, with good comprehensive physics Mechanical properties , such as excellent electrical performance Abrasion resistance ， dimensional stability 、 Chemical resistance And surface gloss, and easy to process and shape. The disadvantages are Weatherability ， Heat resistance Poor and flammable. ABS/PC alloy is used to improve ABS Flame retardancy , with good mechanical strength , toughness and flame retardancy, used in building materials, automobiles and electronics industry , such as TV, office automation equipment Enclosure and telephone 。 PC contributes heat resistance, toughness impact strength Good strength, flame retardancy and ABS Processability 、 Apparent quality And low density to automotive industry Parts are the key point of application. ABS/PA alloy is an impact resistant, chemical resistant, good fluidity and heat resistant material used for automotive interior decoration, Electric tool , sports equipment lawn mower and Snow blowing Machine and other industrial parts, office equipment shell, etc. ABS/PBT alloy has good heat resistance, strength Chemical resistance And mobility, suitable for automobile Interior trim , motorcycle outer cushion, etc. add to Antistatic agent The permanent anti-static grade uses include: copier fax machine Paper transmission mechanism, IC chip holder, video and advanced audio tape, etc; In addition, ABS/PSU ABS/EVA、ABS/PVC/PET、ABS/EPDM、ABS/CPE、ABS/ PU And other alloys. High gloss ABS for Vacuum cleaner ， Electric fan 、 Air conditioner , telephone and other household appliances are achieved by controlling the rubber particle size R+(smaller) in ABS. Low gloss ABS is used for Dashboard , instrument cover, column and other automotive interior trim parts, use the method of filling and thickening filler to make the surface micro shrink and reduce the surface gloss. 
resin Various irons Resin drill And the Austrian imitation cut face drill, the Middle East cut face drill, produced with imported technology, has a complete range of types and first-class quality. It can produce cut resin drills, smooth resin drills, profiled resin drills and other shapes; The product has high precision, good brightness, clear edges and corners, and is not easy to wear and tear Scratches , rich colors, various shapes and effects, environmental protection and natural advantages. 
