When PET is used in the fields of plastic sheet, bottle material, chemical fiber, etc., due to its own chemical characteristics, it needs to be tackified and toughened before the finished product is generated. PET plastic molding can be injection molding, extrusion, blow molding, coating, bonding, machining, electroplating, vacuum plating, printing. PET plastic is a common plastic material with the characteristics of durability, transparency, easy molding and recycling. Widely used in food packaging, fiber, electronic products, medical fields and industrial products.
PET is mainly used for fibers, and a small amount is used for films and engineering plastics. PET fiber is mainly used in the textile industry. PET film is mainly used for electrical insulation materials, such as capacitors, cable insulation, printed circuit wiring substrate, electrode slot insulation, etc. Another field of application for PET films is film bases and base tapes, such as motion picture films, X-ray films, audio tapes, electronic computer tapes, etc. PET film is also used in vacuum crossing aluminum into metallized film, such as gold and silver wire, micro capacitor film, etc. Another use of PET is blow molded products, polyester stretch bottles for packaging.
PBT material molecules are relatively easy to slip, easy to orientation, crystallization, resulting in large shrinkage of the material, causing warping deformation of PBT parts, especially large thin-walled parts. For glass fiber reinforced PBT, due to the anisotropy of the added glass fiber, the shrinkage rate of the material is different in different directions in the injection molding, which increases the warping deformation of the parts, which not only affects the surface quality and installation performance of the plastic products, but also affects the strength of the plastic.
PBT is a polyester material with excellent physical properties and chemical stability, which is widely used in electronics, automobiles, home appliances and other fields. With the development of science and technology, the application prospect of PBT in more fields will be more broad. PBT is widely used in the insulation materials of electronic components, such as sockets, connectors, insulators, etc. PBT is more and more widely used in auto parts, such as lights, instrument panels, electronic control modules, etc. PBT is used in the manufacture of household electrical appliances shell, switch, socket and other components, with good heat resistance and weather resistance.
Impact resistance: PC/PBT alloy has excellent impact strength at room temperature, making it suitable for manufacturing parts and components that require impact resistance.
PC-PBT is a blended material of PC and PBT, which is usually supplied in the form of pellets after blending. PC-PBT has high surface hardness, high rigidity and toughness, high resistance to high temperature shape, and high resistance to stress cracking; its mechanical properties are between the two, and resistance to high temperature deformation is of great significance for large shell materials.
In civilian use, can be blended or pure spun into a variety of medical and knitwear. Nylon filaments are mostly used in the knitting and silk industry, such as weaving single stockings, elastic stockings and other wear-resistant nylon socks, nylon gauze, mosquito nets, nylon lace, elastic nylon coats, various nylon silk or interwoven silk products. Nylon staple fibers are mostly used to blend with wool or other chemical fiber wool products to make various wear-resistant clothing materials. In industry, a large number of nylon used to manufacture cord, industrial cloth, cables, conveyor belts, tents, fishing nets and so on. It is mainly used for parachutes and other military fabrics in national defense.
The emergence of nylon makes textiles look new, its synthesis is a major breakthrough in the synthetic fiber industry, but also a very important milestone in polymer chemistry. Among them, aliphatic PA has many varieties, large yield and wide application, and its name is determined by the specific number of carbon atoms in the synthetic monomer. PA has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, and low friction coefficient, a certain degree of flame retardancy, easy processing, suitable for glass fiber and other filler filling reinforcement modification, improve performance and expand the scope of application.
The performance of ABS is between general plastics and engineering plastics. Its impact resistance is good, basically does not have notch sensitivity, excellent fluidity, and the price is cheaper, so it is widely used. Select PET as the matrix material, ABS as the reinforcing material, add the third component as a compatibilizer, twin-screw extrusion blending method or injection molding method to prepare PET/ABS alloy material, ABS/PET alloy, can more widely meet the needs of the market.
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