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Ethylene Vinyl Acetate copolymer
Ethylene vinyl acetate EVA copolymers are used in extrusion film processes for applications including packaging, surface protection and greenhouse covers, and in photovoltaic cell encapsulation.
Ethylene vinyl acetate (EVA) copolymers are used in extrusion film processes for applications including packaging, surface protection and greenhouse covers, and in photovoltaic cell encapsulation. EVA copolymers are used in molded caps and seals, footwear and car interiors. They are the base polymer in many adhesive resin formulations and in wire and electrical cables compounding. For the hot-melt adhesive needed to hold pages and covers together in bookbinding applications, low to medium MI and high VA grades are used to maximize cohesive strength and flexibility.RXSOL EVA is an ethylene vinyl acetate copolymer with 18% VA.
RXSOL EVA can be used for blown or cast monolayer and coextruded films, or blended with other resins. Other grades can be used for molded or extruded liner seals inside plastic and metal bottle caps.
- Adhesive Lamination
- Barrier Food Packing
- Coextrusion Coating
- Compouding
- Document Plastification
- Extrusion Coating
Benefit ::
- Low seal initiation temperature for fast packaging speeds
- Low shrink temperature
- Greater adhesion than polyethylene (PE) to a variety of substrates/layers including polyolefins, PVS, PS and PET
- Softer and clearer than PE
- Enhanced flexibility
- Increased impact strength
- Improved puncture resistance
- Excellent flex crack resistance
- Excellent flow and caulking in seal area
- Good bondage to PVdC in coextrusion processe
| Properties | Typical Value | Unit |
Test Method |
| Melt Index (190°C / 2.16 kg) | 2.5 | g/10 min | ASTM D1238 |
| Vinyl Acetate Content | 18 | wt% | ASTM D5594 |
| Density | 0.935 | g/cm3 | ASTM D1505 |
| Vicat Softening Point | 64 | °C |
ASTM D1525 |
| Melting Point | 87 | °C | ASTM D3418 |
| Tensile Strength at Yield | 5.2 | MPa | ASTM D638 |
| Tensile Strength at Break | 11 | MPa | ASTM D638 |
| Elongation at Yield | 260 | % | ASTM D638 |
| Elongation at Break | >800 | % |
ASTM D638 |
| Flexural Modulus | 60 | MPa |
ASTM D790 |
| Hardness Shore A | 76 |
ASTM D2240 |
|
| Hardness Shore D | 36 | ASTM D2240 |