What is EVa? I believe many people don't understand this. EVa materials often appear in our daily lives, but we often ignore EVa materials, or we only know EVA products made of EVa materials, so Eva materials become a strange name in the crowd, then what is Eva, it is to do What is used? In response to these questions, Xiaobian came to explain what EVa is and what EVa uses. What is EVa? EVa material is a common name we define. The English name is ethylene-vinyl acetate copolymer. Its chemical name is ethylene-vinyl acetate copolymer. It is an extremely common material and is a kind of mid-base material which is more common in daily life. The finished product made of it has good softness, shockproof, anti-slip and anti-stress, such as our common EVA slippers, cotton shoes, EVa mobile phone case, EVa catheter and so on. What is the material of EVa particles? When the content of vinyl acetate in EVa is less than 20%, it can be used as a plastic at this time. What is the material of EVa particles? EVa has good low temperature resistance, and its thermal decomposition temperature is low, about 230 °C. With the increase of molecular weight, the softening point of EVa rises, the workability and the gloss of the surface of plastic parts decrease, but the strength increases and the impact The toughness and environmental stress cracking resistance are improved. The chemical resistance and oil resistance of EVA are slightly worse than that of PE and PVC, and the change is more obvious with the increase of vinyl acetate content. What is the material of EVa film? The main use of EVa films is in the production of functional shed films. The functional shed film has high weather resistance, anti-fog drop and heat preservation performance. Since polyethylene has no polarity, even if a certain amount of anti-fog drops are added, its anti-fog performance can only last for about 2 months; Adding a certain amount of EVa resin to the shed film not only has a high light transmittance, but also has a large improvement in anti-fog performance, generally more than 4 months. In addition, EVa can also be used to produce packaging films, medical films, laminate films, cast films, and the like. What is the material of EVa pipe? Shoe material is the most important application field of EVA resin in China. In the EVA resin used in shoe materials, the vinyl acetate content is generally 15% to 22%. Because of the softness, elasticity and chemical corrosion resistance of EVA resin blended foamed products, it is widely used in medium and high-grade sneakers. Hiking shoes, slippers, sandals and interior materials. In addition, this material is also used in the field of acoustic panels, gym mats and sealing materials. EVa material physical parameters What are the uses of EVa materials? Through the previous understanding, we know the composition and performance of the EVA material, of course, his use is also very extensive, the following briefly describes its use: Products made of EVa materials are as follows: EVa sheet, coil, EVA color film, EVA high foam, EVA coarse hole foaming, EVa pore foaming, EVA closed cell foaming. Antistatic EVA, high rebound EVA, flame retardant EVa, odorless EVa, environmentally friendly EVa, scented EVa. EVa shoe material: EVa midsole, EVA outsole, EVA breathable pad, EVA massage pad, (shock absorber) EVa related: EVA yoga mat, EVA mat, EVa sponge tape, EVA toy EVa material use 1: making household appliances and daily necessities such as ducts, gas pipes, civil construction boards, containers, etc. for household refrigerators. EVa material use 2: film, gasket, medical equipment for packaging, can also be used as hot melt adhesive, cable insulation layer. EVa material use three: widely used in books wireless binding, digital product shell structural parts, furniture edge banding, assembly of automobiles and household appliances, shoemaking, carpet coating and metal anti-corrosion coating. There is still a lot of use about EVa materials, which is not to mention here. Application fields of EVa materials It is known that performance determines development. The performance of EVa materials is very flexible, corrosion resistant, non-slip, and resistant to pressure. So for its application field is more extensive, such as daily necessities shoes, gloves interior materials, medical supplies anti-corrosion, household items sofas, cushions and so on. And its insulation properties are also widely used in industrial and manufacturing fields. In short, the advantages of EVa materials are numerous and used in many fields. EVa material application field 1: Because EVa material has strong softness, chemical resistance and good elasticity, it is widely used in the sole and interior materials of various footwear. EVa material application field 2: EVA material has inclusiveness and crosslinkability which other materials do not have, because of its performance, it is suitable for halogen-free flame-retardant cable, semiconductor shielded cable and two-step silane Used in the cable, it is also widely used in industrial and manufacturing supplies due to this property. The above is what is the material of EVa, and what kind of knowledge about the use of EVA, I hope that everyone can help, for your reference. Is EVa an environmentally friendly material? A: EVA itself is non-toxic and harmless and belongs to environmentally friendly materials. In electronic appliances, engineering plastics can be used for wire and cable coating, printed circuit boards, insulating films and other insulating materials and electrical equipment structural parts. In household appliances, engineering plastics can be used in refrigerators, washing machines, air conditioners, televisions, electric fans, vacuum cleaners, electric irons, microwave ovens, rice cookers, radios, combination audio equipment and lighting fixtures. In the chemical industry, engineering plastics can be used in chemical equipment such as heat exchangers, chemical equipment linings, and chemical pipelines such as pipes and pipe fittings, valves, pumps, etc.
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EVa part introduction Product name Place of origin Melting index g/10min Characteristics and uses 7140F Formosa 0.7 Greenhouse membrane, agricultural membrane, medical use 7130F Formosa 0.9 Greenhouse membrane, agricultural film, medical use. 7320M Formosa 2.5 Flexible object, general grade film 7240M Formosa 1.8 Foamed shoe material, cross-linked foam board 7340M Formosa 2.5 Flexible object. 7350M Formosa 2.5 Foamed shoe material, cross-linked foam board, shock absorbing material 7360M Formosa 3 Foamed shoe material, cross-linked foam board, shock absorbing material 7310M Formosa 2.5 Flexible article, cross-linked foam board 7670H Formosa 20 Heat-resistant packaging 7970H Formosa 150 Heat-resistant packaging
What is the EVA particle? What are its uses and performance parameters?