Braskem PB681 LDPE Cast and Blown Film Extrusion, Injection Molding Polyethylene

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Braskem PB681 LDPE Cast and Blown Film Extrusion, Injection Molding Polyethylene (discontinued **)
Categories:	Polymer; Film; Thermoplastic; Polyethylene (PE); Low Density (LDPE); Low Density Polyethylene (LDPE), Film Grade
Material Notes:	PB681 is a resin produced under high pressure in a tubular reactor. This resin presents excellent 'draw down' (stability to form fine films). The films produced with this resin have excellent optical properties. It does not contain additives. It is used in LLDPE and HDPE blends. For blown film extrusion processing the screw - L/D relation should be 16 to 30:1, the compression rate should be 3 to 4:1, and the frost line height should at most be equivalent to the bubble diameter. For cast film extrusion processing the screw - L/D relation should be at least 20:1.
Vendors:

Available Properties

Density, ASTM-D1505
Melt Flow, ASTM-D1238
Film Elongation at Break, MD, ASTM-D882
Film Elongation at Break, TD, ASTM-D882
Elmendorf Tear Strength TD, ASTM-D1922
Elmendorf Tear Strength, TD, ASTM-D1922
Dart Drop, ASTM-D1709
Dart Drop Test, ASTM-D1709
Film Tensile Strength at Break, MD, ASTM-D882
Film Tensile Strength at Break, TD, ASTM-D882
Haze, ASTM-D1003
Gloss, ASTM-D2457, Angle 60°
Die Temperature, Cast Film Extrusion
Mold Temperature, Injection Molding
Blow-up Ratio (BUR), Blown Film Extrusion
Roll Temperature, Chill

Property Data

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Manufacturer Notes:
none

Category Notes
Plastic

**
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