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Surlyn® 7940
| Category: | EMAA , Ethylene Methacrylic Acid |
| Manufacturer: | DuPont Packaging & Industrial Polymers |
| Trademark: | Surlyn® |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | ivo6ar_Surlyn-7940.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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Surlyn® 7940 is a lithium ionomer thermoplastic resin. It is available for use in conventional extrusion and injection equipment, to create various sheets or shapes. Surlyn® 7940 thermoplastic resin is an advanced ethylene/acid/acylate terpolymer, in which some of the MAA acid groups have been partially neutralized with lithium ions. |
| General Information | |
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| Features |
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| Forms |
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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 0.940 | g/cm³ | ASTM D792, ISO 1183 |
| Melt Mass-Flow Rate (MFR) (190°C/2.16 kg) | 2.6 | g/10 min | ASTM D1238, ISO 1133 |
| Ion Type | Lithium |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Freezing Point | |||
| -- | 48 | °C | ISO 3146 |
| -- | 48 | °C | ASTM D3418 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore D) | 68 | ASTM D2240, ISO 868 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength | |||
| Yield, 23°C, Compression Molded 1 | 15.2 | MPa | ASTM D638 |
| Break, 23°C | 26.2 | MPa | ASTM D638, ISO 527-2 |
| Tensile Elongation (Break, 23°C) | 290 | % | ASTM D638, ISO 527-2 |
| Flexural Modulus (23°C) | 420 | MPa | ASTM D790 |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Impact Strength | ASTM D1822 | ||
| -40°C | 525 | kJ/m² | |
| 23°C | 462 | kJ/m² |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Vicat Softening Temperature | 63.0 | °C | ASTM D1525, ISO 306 |
| Peak Melting Temperature | 91.0 | °C | ASTM D3418, ISO 3146 |
| Optical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Haze (6350 µm) | 4.0 | % | ASTM D1003 |
| Injection | Nominal Value | Unit | |
|---|---|---|---|
| Processing (Melt) Temp | 185 to 285 | °C |
| Note Message | |
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| 1 . | Type IV, 50 mm/min |
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