eFunda Polymers: Properties of Polyethylene and ethylene copolymers {low and medium density, linear copolymer}
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Polyethylene and ethylene copolymers		  
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State: low and medium density, linear copolymer
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   263 - 518  tensile   D638
Flexural Modulus (MPa)   276 - 725   23 ºC   D790
Tensile Strength (MPa)   14 - 28 at break   D638
  10 - 20 at yield   D638
Elongation at break (%)   100 - 965     D638
Hardness   55 - 56  Shore D   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   0.5 - 0     D256A

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  0.918 - 0.94   D792

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  122 - 124  Tm, crystalline  
Processing Temperature (ºC)  177 - 260  injection molding  
 233 - 316  extrusion  
Molding Pressure (MPa)   35 - 104    
Compression Ratio  3    
Linear Mold Shrinkage (cm/cm)  0.02 - 0.022   D955

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Suppliers
A. Schulman Akron, OH  800-662-7203
Bamberger Polymers, Inc. Jericho, NY   
Chevron Chemical Co. Houston, TX  800-231-3828
Dow Plastics Midland, MI  800-441-4369
DuPont Co., Polymers Wilmington, DE  800-438-7225
Eastman Chemical Co. Kingsport, TN  800-327-8626
Equistar Chemicals LP Houston, TX  888-777-0232
Exxon Chemical Canada Toronto, Ontario, M5W 1K3, Canada   
Exxon Chemical Co. Houston, TX  800-231-6633
Mobil Chemical Co. Edison, NJ   
Montell North America Wilmington, DE   
Network Polymers, Inc. Akron, OH  888-437-4674
NOVA Chemicals, Ltd. Calgary, Alberta T2P 5C6, Canada   
R.S.G. Polymers Corp. Stony Brook, NY   
Solvay Polymers, Inc. Houston, TX  800-231-6313
Union Carbide Corp. Danbury, CT  800-335-8550

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