Prix FOB
Obtenir le dernier prix2400 ~ 2600 / Metric Ton ( Negotiable )
|15 Metric Ton Minimum Order
Pays:
China
N ° de modèle:
HYST-EVA
Prix FOB:
2400 ~ 2600 / Metric Ton ( Negotiable ) Obtenir le dernier prix
Localité:
China
Prix de commande minimale:
2400 per Metric Ton
Commande minimale:
15 Metric Ton
Packaging Detail:
25kg bag
Heure de livraison:
within 7-10 days after receiving deposit
Capacité de Fournir:
2000 Metric Ton per Month
Payment Type:
Western Union, L/C, T/T
Groupe de produits :
Personne àcontacter Paul
Room 301, 3/F, Business Center, NO. 50, Middle HONGKONG Road, Shinan District, Qingdao, Shandong
Ethylene vinyl acetate (also known as EVA) is the copolymer of ethylene and vinyl acetate. The weight percent vinyl acetate usually varies from *0 to *0%, with the remainder being ethylene.
It is a polymer that approaches elastomeric materials in softness and flexibility, yet can be processed like other thermoplastics. The material has good clarity and gloss, barrier properties, low-temperature toughness, stress-crack resistance, hot-melt adhesive water proof properties, and resistance to UV radiation. EVA has little or no odor and is competitive with rubber and vinyl products in many electrical applications.
Applications
Hot melt adhesives, hot glue sticks, top of the line soccer cleats,
are usually made from EVA, usually with additives like wax and
resin. EVA is also used as a clinginess-enhancing additive in
plastic wraps.
EVA is also used in biomedical engineering applications as a drug delivery device. The polymer is dissolved in an organic solvent (e.g., dichloromethane). Powdered drug and filler (typically an inert sugar) are added to the liquid solution and rapidly mixed to obtain a homogeneous mixture. The drug-filler-polymer mixture is then cast into a mold at −*0 °C and freeze dried until solid. These devices are used in drug delivery research to slowly release a compound. While the polymer is not biodegradable within the body, it is quite inert and causes little or no reaction following implantation.
EVA is one of the materials popularly known as expanded rubber or foam rubber. EVA foam is used as padding in equipment for various sports such as ski boots, hockey, boxing, mixed martial arts, wakeboard boots, waterski boots, fishing rods and fishing reel handles. It is typically used as a shock absorber in sports shoes, for example. It is used for the manufacture of floats for commercial fishing gear such as purse seine (seine fishing) and gillnets. In addition, because of its buoyancy, EVA has made its way into non-traditional products such as floating eyewear. It is also used in the photovoltaics industry as an encapsulation material for silicon cells in the manufacture of photovoltaic modules. EVA slippers and sandals are currently very popular because of their properties like light weight, easy to mold, odorless, glossy finish, and cheaper compared to natural rubber. In fishing rods, it is used to construct handles on the rod-butt end. EVA can be used as a substitute for cork in many applications.
EVA emulsions are polyvinyl acetate (PVAc) copolymers based on vinyl acetate (VAM) internally plastized with vinyl acetate ethylene (VAE). PVAc copolymer are adhesives used in packaging, textile, bookbinding for bonding plastic films, metal surfaces, coated paper, as redispersible powder in plasters and cement renders
Vinyl acetate ethylene copolymer(VAE), is also used in coatings formulation of good quality interior water-borne paints at *3% Primary dispersant
Hydrolysis of EVA gives ethylene vinyl alcohol (EVOH) copolymer.
Â
Â
| Pays: | China |
| N ° de modèle: | HYST-EVA |
| Prix FOB: | 2400 ~ 2600 / Metric Ton ( Negotiable ) Obtenir le dernier prix |
| Localité: | China |
| Prix de commande minimale: | 2400 per Metric Ton |
| Commande minimale: | 15 Metric Ton |
| Packaging Detail: | 25kg bag |
| Heure de livraison: | within 7-10 days after receiving deposit |
| Capacité de Fournir: | 2000 Metric Ton per Month |
| Payment Type: | Western Union, L/C, T/T |
| Groupe de produits : | Plastic & Rubber |
