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LOTEK

LOTEK 3110 (Ethylene Acrylic Acid Sodium IONOMER)

Key features

Recommended processing conditions and resin handling

IOTEK 3110 is a sodium ionomer, which offers :

- good mechanical strength
- excellent clarity and gloss
- excellent hot tack and seal strength
- easy processability
- low odor

Due to its outstanding clarity and melt strength, Iotek 3110 is the resin of choice for skin packaging and thermoforming applica-tions. Its excellent oil resistance and high hottack make it a top performer in demanding sealing applications. Its rheological characteristics and high thermal stability offer good flow properties in coextrusion with e.g. PA and EVA.Its excellent puncture resistance, also at low temperatures, makes it a valuable component of deep-freeze film structures. Its stiffness and flex resistance make it an ex-cellent material in demanding molding applications such as shoe reinforcements.

Blown film : 180-230°C.
Higher processing temperatures favor the 
optical properties.

Warning:

To minimize corrosion risk, all exposed metal surfaces in the extruder and die should be made from corrosion resistant metals or nickel/chrome plated. 

Iotek 3110 should be fed into the extruder after LDPE of a similar or higher melt index. Machines should always be completely purged with LDPE or a suitable cleaning compound before shutdown.

Cation containing polymers pick up moisture from the atmosphere if exposed for prolonged periods. It is therefore recommended to re-seal  tightly the package after each production run molding.

Typical values

  Test Method(based on) Unit Typical Value
Plaque properties
Tensile Strength at Break D 638   Mpa 28
Yield strength D 638  Mpa 14
Elongation at break D 638 % 460
Hardness Shore D D 2240   55
1 % Secant Modulus D 638 MPa 240
Abrasion resistance (weight loss) D 1242 mg 80

Film properties

       
Tensile Strength at Break MD / TD D 882 MPa 40 / 42
Elongation at Break MD / TD D 882 % 320 / 340
1 % Secant Modulus MD / TD D 638 MPa 220 / 200
Haze   D 1003 % 3.4
Gloss (60° angle)   D 1746 % 9
Dart Drop Impact (A/Face)   D 1709 g/µm 12
Elmendorf Tear Strength MD / TD D 1922 g/µm 0.6 / 0.6