Chevron Phillips MarFlex® 7120S LLDPE Blown & Cast Film Resin

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Chevron Phillips MarFlex® 7120S LLDPE Blown & Cast Film Resin (discontinued **)
Categories:	Polymer; Film; Thermoplastic; Polyethylene (PE); Linear Low Density (LLDPE); Linear Low Density Polyethylene (LLDPE), Film Grade; LLDPE/Hexene, Film Grade
Material Notes:	Resin Type: linear low density polyethylene, hexene copolymer with enhanced stabilization package Characteristics: good stiffness at thin gauges, good drawdown, excellent processability, can use straight or in blends with LDPE or HDPE, no process aid. Applications: stretch wrap, overwrap, coextrusions Recommended processing conditions: 6.35 cm extruder. 24:1 screw L/D ratio. 0.064 cm die opening. Melt temperature 270°C. Data provided by Chevron Phillips Chemical Company, LP.
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Physical Properties	Metric	English	Comments

Density	0.918 g/cc	0.0332 lb/in³	ASTM D1505
Thickness	31.8 microns	1.25 mil
Melt Flow	2.0 g/10 min	2.0 g/10 min	ASTM D1238E

Mechanical Properties	Metric	English	Comments
Film Elongation at Break, MD	580 %	580 %	ASTM D882
Film Elongation at Break, TD	780 %	780 %	ASTM D882
Coefficient of Friction	>= 1.0	>= 1.0	ASTM D1894
Elmendorf Tear Strength, MD	11.8 g/micron	300 g/mil	Notched; ASTM D1922
Elmendorf Tear Strength, TD	21.7 g/micron	550 g/mil	Notched; ASTM D1992
Dart Drop	4.41 g/micron	112 g/mil	ASTM D1709
Film Tensile Strength at Break, MD	42.7 MPa	6200 psi	ASTM D882
Film Tensile Strength at Break, TD	33.1 MPa	4800 psi	ASTM D882
1% Secant Modulus, MD	200 MPa	29000 psi	ASTM D882
1% Secant Modulus, TD	214 MPa	31000 psi	ASTM D882

Optical Properties	Metric	English	Comments
Haze	3.0 %	3.0 %	ASTM D1003
Gloss	84 %	84 %	45°; ASTM D2457
	140 %	140 %	60°; ASTM D2457

Processing Properties	Metric	English	Comments
Processing Temperature	270 °C	518 °F	Cast Film
Die Opening	0.0640 cm	0.0252 in
Extruder Size	6.35 cm	2.50 in

Descriptive Properties
Color	Natural

**
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PCHEVF09 / 20270

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