Overview
| brand | DuPont Mitsui | specifications | |
| Processing customization | Active ingredient content | ||
| Grade | two hundred and twenty | manufacturer | DuPont Mitsui |
| producing area | Japan | model | two hundred and twenty |
| Product name | EVA Vinyl Acetate | Processing level | Hot melt grade |
| Property level | Chemical resistance | Usage level | Hot melt adhesive |
| Sales method | Brand distribution | type | Standard material |
Product Details
Product parameters
| Performance Items | Test conditions [status] | test method | test data | Data unit | |
| physical property | Density | ASTM D-792/ISO 1183 | 0.957 | G/cm3 | |
| Melt flow rate | 190/2.16kg | ASTM D-1238/ISO 1133 | 150 | G/10min | |
| VA content | 28 | % | |||
| Thermal performance | Melting point (DSC) | ASTM D-3418/ISO 3146 | 63 (145) | ℃ (° F) | |
| Vicat softening point | ASTM D-1525/ISO 306 | 36 (97) | ℃ (° F) | ||
EVA is a copolymer of ethylene and acetic acid. Its Chinese chemical name is ethylene vinyl acetate copolymer, while its English chemical name is Ethylene Vinyl Acetate Copolymer. The application field of EVA is quite extensive, and the market consumption in China is constantly increasing every year, especially in the shoe industry, which is used in the soles and interior materials of mid to high-end tourism shoes, hiking shoes, slippers, and sandals.
characteristic
1. EVA with a vinyl acetate content of less than 5% mainly produces films, wires and cables, LDPE modifiers, adhesives, etc;
2. EVA products with a vinyl acetate content of 5% to 10% are elastic films, etc;
3. EVA with a vinyl acetate content of 20-28% is mainly used for hot melt adhesives and coating products;
EVA is a copolymer of LLDPE (linear low density polyethylene) and acetic acid (VA).
application area
1. Widely used in fields such as foaming shoe materials, functional greenhouse films, packaging molds, hot melt adhesives, wires and cables, and toys.
2. EVA products with a vinyl acetate content of 5% to 10% are elastic films, etc;
3. EVA with a vinyl acetate content of 20-28% is mainly used for hot melt adhesives and coating products;
4. The content of vinyl acetate ranges from 5% to 45%, and the main products are films (including agricultural films) and sheets, injection molded and molded products, foam products, hot melt adhesives, etc.
(1) Foam shoe material. Shoe materials are the main application field of EVA resin in China. In the EVA resin used in shoe materials, the content of vinyl acetate is generally between 15% and 22%. Due to the flexibility, good elasticity, and chemical corrosion resistance of EVA resin blended foam products, they are widely used in the soles and interior materials of mid to high-end tourism shoes, hiking shoes, slippers, and sandals. In addition, this material is also used in the fields of soundproof panels, gymnastics pads, and sealing materials.
(2) Thin film. The main purpose of EVA film is to produce functional greenhouse films. Functional greenhouse films have high weather resistance, anti fogging and insulation properties. Due to the lack of polarity of polyethylene, even if a certain amount of anti fogging agent is added, its anti fogging performance can only be maintained for about 2 months; The greenhouse film made by adding a certain amount of EVA resin not only has a high transmittance, but also has a significant improvement in anti fog performance, which can generally exceed 4 months. In addition, EVA can also be used to produce packaging films, medical films, laminated films, casting films, etc.
(3) Wire and cable. With the continuous development of computer and network engineering, people are increasingly using halogen-free flame-retardant cables and silane cross-linked cables for the sake of computer room security. Due to its excellent filler inclusiveness and cross-linkability, EVA resin is widely used in halogen-free flame-retardant cables, semiconductor shielded cables, and two-step silane cross-linked cables. In addition, EVA resin is also used to make sheaths for some special cables. The content of EVA resin used in wires and cables is generally between 12% and 24%.
(4) Toys. EVA resin is also widely used in toys, such as children's wheels, seat cushions, etc.
(5) Hot melt adhesive. Hot melt adhesive with EVA resin as the main component is very suitable for automated assembly line production due to its solvent-free, environmentally friendly, and high safety. Therefore, it is widely used in wireless book binding, furniture edge sealing, automobile and household appliance assembly, shoe making, carpet coating, and metal anti-corrosion coating.
(6) Others. EVA resin is also widely used in fields such as ink, luggage, wine bottle covers, etc. It is estimated that the consumption of EVA resin in these areas is not less than 15 kt.