What is Ethylene-vinyl acetate copolymer CAS 24937-78-8 ?
Ethylene-vinyl acetate copolymer CAS 24937-78-8 (EVA) is composed of ethylene and vinyl acetate copolymerization in different proportions, the E in the acronym EVA represents ethylene components, VA represents vinyl acetate components, its performance and vinyl acetate (VA) content is closely related, according to the different VA content can be divided into three categories: EVA plastic with VA content of 5%-40% is mainly used for polyethylene modification, manufacturing wire and cable, film and other molded products and mixtures; VA content in 40%-90% is called EVA rubber, mainly used in rubber, cable and automotive industry parts; VA content above 90% is called polyvinyl acetate emulsion, mainly used in adhesives, coatings and so on.
Specifica
Gli elementi di prova di |
Standard |
Di fusione punto di |
75 °C |
Punto di ebollizione |
<200°C |
Densità |
0.948 g/mL at 25 °C |
Aspetto |
white granular |
Applicazione
Ethylene-vinyl acetate copolymer CAS 24937-78-8 (EVA) has a wide range of applications, the following are its main application areas:
Thin film field
Agricultural film: EVA has good light transmission, heat preservation and weather resistance, and is often used in the production of agricultural film. It can effectively maintain the temperature and humidity in the greenhouse, promote the growth of crops, and extend the service life of the film.
Packaging film: EVA film has good flexibility, transparency and puncture resistance, suitable for packaging of various products, such as food, daily necessities, etc. It can provide good protection performance while showing the appearance of the product.
Shoe material field
Sole: EVA has the characteristics of softness, good elasticity, light weight, wear resistance, etc., is the ideal material for making sole. The sole made of EVA is comfortable to wear, has good shock absorption performance, and can reduce foot fatigue.
Upper: EVA can also be used to make upper materials, providing soft touch and good breathability, making shoes more comfortable and beautiful.
Hot melt adhesive field
EVA hot melt adhesive: has the advantages of strong viscosity, fast curing, low temperature resistance, etc., widely used in packaging, binding, furniture manufacturing and other industries. Can be used to bond paper, wood, plastic and other materials, easy to operate, can improve production efficiency.
Wire and cable field
Insulation layer: EVA has good insulation performance, water resistance and chemical corrosion resistance, can be used as an insulating layer material for wire and cable, can effectively protect wire and cable from the influence of the external environment, to ensure the safety and reliability of power transmission.
Sheath: EVA can also be used to make sheath for wire and cable, providing mechanical protection and anti-aging performance, extending the service life of wire and cable.
Other fields
Toys: EVA is soft, non-toxic, odorless and other characteristics, often used to make toys, such as children’s toy balls, puzzles, etc., to ensure the safety and comfort of children’s use.
Sporting goods: It is also widely used in sporting goods, such as sports MATS, yoga MATS, etc., whose softness and elasticity can provide good support and cushioning effect.
Foam products: EVA foam has light weight, soft, heat preservation, sound insulation and other properties, can be used to make a variety of foam products.
Imballaggio
25kg/bag
