| About |
|---|
| Westlake EF437 resin is a 2.5% EVA copolymer designed for films that require excellent optical and strength properties. This resin has excellent heat sealing characteristics and low temperature brittleness properties. Application/Uses: High Clarity Packaging Light and Medium Duty Produce Bags Linear Blend Component for Sealing and Clarity&& |
| Product Description | |
|---|---|
| Supplier | Westlake Chemical |
| Generic | EVA |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Good Clarity,Good heat sealing,Optical performance,Kosher certification,Copolymer,Low temperature toughness |
| Availabilitys | North America,Asia Pacific |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.925 | g/cm³ | ASTM D1505 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 2.0 | g/10min | ASTM D1238 |
| Vinyl acetate content | 2.5 | wt% | |
| film | Nominal value | Unit | Test method |
|---|---|---|---|
| film thickness | |||
| test | 32 | µm | |
| Secant modulus | |||
| 1% 正割，TD，32 µm，吹塑薄膜 | 152 | MPa | ASTM D882 |
| 1% secant, MD, 32 µ m, blow molded film | 138 | MPa | ASTM D882 |
| tensile strength | |||
| TD, fracture, 32 µ m, blow molded film | 17.0 | MPa | ASTM D882 |
| MD, fracture, 32 µ m, blow molded film | 24.0 | MPa | ASTM D882 |
| Tensile strain | |||
| TD, fracture, 32 µ m, blow molded film | 700 | % | ASTM D882 |
| MD, fracture, 32 µ m, blow molded film | 350 | % | ASTM D882 |
| Drop hammer impact | |||
| 32 µ m, blow molded film | 150 | g | ASTM D1709-A |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| gloss | |||
| 45 °, 31.8 µ m, blow molded film | 79 | ASTM D2457 | |
| Haze | |||
| 31.8 µ m, blow molded film | 3.3 | % | ASTM D1003 |
| Process Conditions | |||
|---|---|---|---|
| Extrusion | Nominal value | Unit | Test method |
| Melt temperature | 182 to 199 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Test run at 23°C (73°F) and 50% relative humidity |
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