ETHYLENE-VINYLALCOHOL COPOLYMER D2908
29 mol% Ethylene Content
General Description
Soarnol D2908 is one of the standard grades of "Soarnol®", its ethylene content is 29 mol% with an intermediate MFR(melt flow rate).
Soarnol D2908 has excellent gas barrier property at normal humidity and is primarily used in coextruded sheet and coextrusion coating applications. This resin can also be used in coextruded film and coextruded blow-molded containers.
General Properties
| Property | Unit | Value |
|---|---|---|
| Ethylene Content | mol% | 29 |
| MFR1) (@210°C, 2160g) | g/10min | 8 |
| Volatile Matter | % | < 0.3 |
| Melting Point2) | deg C | 188 |
| Crystallization Temperature2) | deg C | 163 |
| Oxygen Permeability3) 20deg C-65%RH |
cc 20μm/m2 day atm cc·mil/100inch2·day·atm |
0.4 0.020 |
| WVTR 40deg C-90%RH |
g 30μm/m2 24hrs | 37-70 |
1): Measured with Melt Indexcer
2): Measured with DSC, both heating and cooling speeds of 10deg C /min
3): Measured with OXTRAN 10/50 (MOCON)
Melt Viscosity
Fig.1 Melt Viscosity of Soarnol D2908
Example of Processing
| Extruder: | 40 mmφsingle screw extruder, L/D = 28 |
|---|---|
| Screw: | Full-flighted, constant pitch type, CR = 3.5 |
| Screen pack: | 80/120/50 mesh |
| Die: | Manifold type, die width = 450 mm, lip clearance = 0.2 mm |
| C1 | C2 | C3 | C4 | C5 | Head | Die |
|---|---|---|---|---|---|---|
| 180 (356) |
200 (392) |
220 (428) |
230 (446) |
230 (446) |
230 (446) |
200-220 (392-428) |
Hygienic Performance of Soarnol D2908
Soarnol D2908 contains no heavy metals or other harmful substances.
Soarnol D2908 meets the Food Sanitation Standards of various countries.
| Japan: | Ministry of Health and Welfare Announcement No.370(Dec. 28,1959) and Its Latest Amendment No.18(Jan. 31,1994) Self-Restrictive Requirements on Food-Contacting Articles Made of Polyolefins and Certain Polymers |
|---|---|
| U.S.A.: | FDA 21CFR 177.1360(a)(3) and 175.105 |
| EU: | European Commission Directive 90/128/EEC, and Its Latest Amendment |
Date Revised: April. 4, 2008
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