What is the classification of resin? And resins-Iota

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Service > What is the classification of resin? And resins

What is the classification of resin? And resins

Resin is generally considered normal metabolites or secretions of plant tissue, often coexist and volatile oils in the plant secretory cells, resin ducts or conduits, especially woody perennial heartwood catheter site. Consisting of a mixture of various ingredients, usually amorphous solid, surface slightly shiny, hard and brittle, a few semi-solid. Insoluble in water, nor swelling, soluble in most organic solvents alcohol, ether, chloroform. Heated and softened, and finally melted with smoke when burned, and a special aroma or odor. Resin, natural resins and synthetic resins into two categories. Rosin, benzoin and other natural resins, phenol resins, polyvinyl chloride resins and other synthetic resins. Manufacture of plastic resins is the main raw material, also used to make coatings, adhesives, insulation materials. Resin, natural resins and synthetic resins points. Natural resin is defined by the nature of animal and plant exudates resulting amorphous organic materials, such as rosin, amber and shellac. Synthetic resin refers to a resin product resulting from simple organic chemical synthesis or by chemical reaction of some natural products obtained. Classification natural resin rosin resin · | · natural synthetic resin epoxy resin phenol resin │ │ │ amino resin acrylic resin silicone resin │ │ unsaturated polyester resin ion exchange resin │ │ │ polyamide resin urea resin │ polyurethane resin │ │ other synthetic resin, furan resin │1. Resin synthesis reaction classification according to this method can be divided into a resin addition polymer and condensation polymer. Addition polymer refers to polymers prepared by the reaction of addition polymerization, the same molecular formula and the monomer of the formula which links the structure, such as polyethylene, polystyrene, polytetrafluoroethylene and the like. Polycondensates means polymers prepared by the reaction of the condensation polymerization, the structural unit of the formula and the monomer of formula is different, such as phenolic resins, polyester resins, polyamide resins and the like. 2. Resin composition according to the main chain in this way can be classified into carbon-chain polymer resin, hybrid polymer chains and elements of organic polymers. Carbon chain polymer refers to a polymer backbone composed entirely of carbon atoms, such as polyethylene, polystyrene and the like. Hetero chain polymer refers to a polymer backbone made up of atoms of carbon and oxygen, nitrogen, sulfur and other elements composed of two or more, such as polyoxymethylene, polyamide, polysulfone, polyether and the like. Element refers to the organic polymer backbone may not contain carbon atoms, mainly composed of atoms of silicon, oxygen, aluminum, titanium, boron, sulfur, phosphorus and other elements, such as silicone. 3. Press the resin properties classified thermosetting resin (FRP general use of such resins): unsaturated polyester / vinyl ester / epoxy / phenolic / bismaleimide (BMI) / polyimide resin or the like. Thermoplastic resins: polypropylene (PP) / polycarbonate (PC) / nylon (NYLON) / polyether ether ketone (PEEK) / polyether sulfone (PES) and the like. Synthetic resin synthetic resin is a polymer made of a class of synthetic polymer. The most important application is the manufacture of plastic synthetic resin. To facilitate processing and improve performance, often adding additives sometimes used directly for forming process, so often is synonymous with plastic. Synthetic resin or manufacture of synthetic fibers, coatings, adhesives, insulating materials and other basic materials. Yan Lei stoop brown iodine alone Watchtower sweep winter stimulated a wide range of synthetic resins, including polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP) and ABS resin into five general-purpose resins, is the most widely used synthetic resin material.

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