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EVAL® LT171B

Ethylene Vinyl Alcohol

Supplied by Eval Company of America

The technical datasheet with complete property values for EVAL® LT171B is available to members of the Prospector Plastics Database.
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General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Additive 
  • Lubricant
Features 
  • Copolymer
  • Lubricated
  
Forms 
  • Pellets
Processing Method 
  • Extrusion
Physical
Nominal Value
Unit
Test Method
Density
g/cm³
 ISO 1183
Melt Mass-Flow Rate (MFR) (210°C/2.16 kg)
g/10 min
 ISO 1133
Ethylene Content
wt%
  
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
 ISO 527-2
Tensile Stress (Break)
psi
 ISO 527-2
Tensile Strain (Break)
%
 ISO 527-2
Flexural Modulus
psi
 ISO 178
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength
ft·lb/in²
 ISO 179
Hardness
Nominal Value
Unit
Test Method
Rockwell Hardness (M-Scale)
 
 ISO 2039-2
Thermal
Nominal Value
Unit
Test Method
Glass Transition Temperature (DSC)
°F
 DSC
Melting Temperature (DSC)
°F
 ISO 3146
Peak Crystallization Temperature (DSC)
°F
 ISO 3146
Additional Information
O2 Transmission Rate, ISO 14663-2, 0%RH, 20°C: 0.005 cm²-mil/100in²/day/atm
O2 Transmission Rate, ISO 14663-2, 65%RH, 20°C: 0.011 cm²-mil/100in²/day/atm
O2 Transmission Rate, ISO 14663-2, 85%RH, 20°C: 0.065 cm²-mil/100in²/day/atm
Water Vapor Transmission Rate, ASTM E96-E, 90%RH, 40°C: 4.8 g-mil/100in²/day/atm
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: EVAL® LT171B, EVAL LT171B, EVAL® , EVAL, EVALLT171B, LT 171 B, LT171B, LT171, 171B, Ethylene Vinyl Alcohol, EVOH, Vinyl Alcohol, VOH, EthyleneVinylAlcohol, VinylAlcohol, 171LT
Extrusion
Nominal Value
Unit
 
Cylinder Zone 1 Temp.
°F
  
Cylinder Zone 2 Temp.
°F
  
Cylinder Zone 3 Temp.
°F
  
Cylinder Zone 4 Temp.
°F
  
Cylinder Zone 5 Temp.
°F
  
Adapter Temperature
°F
  
Melt Temperature
°F
  
Die Temperature
°F
  
Extrusion Notes
The recommended design for metering screws:
L/D Ratio: 24 to 30
Compression Ratio: 2.6 to 3.6
Zone Distribution:
  • Feed: 8 to 10 D
  • Compression: 8 to 10 D
  • Metering: 8 to 10 D
The recommended design for barrier screws:
L/D Ratio: 24 to 30
Compression Ratio: 2.5 to 3
Zone Distribution:
  • Feed: 6 to 7.5 D (25% of screw length)
  • Transition and Melting: 12 to 15 D (50% of screw length)
  • Metering: 6 to 7.5 D (25% of screw length)
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.