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Technical Data Sheet


Applications
  • Automotive parts & accessories
  • Compounders
  • Packaging components non food contact

Product Description
Eastapak™ Polymer 9921 is an 0.80 ltV (dL/g) copolymer PET that has proven itself as an exceptional, cost-effective option that continues to surpass expectations for quality, efficiency and convenience in a wide array applications.

Typical Properties

PropertyTest MethodTypical Value, Units
Film Properties
Thickness of Film TestedD 374264 Microns (10.4 mils)
Intrinsic Viscosity 
     (film)EMN-A-AC-G-V-10.788
HazeD 10030.71 %
Gloss 
     @ 60°D 2457149
TransparencyD 1746100 %
Regular TransmittanceD 100389 %
Total TransmittanceD 100392 %
Water Vapor Transmission RatedF 3726.8 g/m2·24h (0.4 g/100in.2·24h)
Gas Permeability, CO2D 143425.6 cm3·mm/m2·24h·atm (64 cm3·mil/100in.2·24h·atm)
Gas Permeability, O2gD 39855.2 cm3·mm/m2·24h·atm (12 cm3·mil/100in.2·24h·atm)
Elmendorf Tear Resistance 
     M.D.D 19223538 g/mm (957 gf)
     T.D.D 19225063 g/mm (1395 gf)
PPT Tear Resistance 
     M.D.D 258295.4 N (21.4 lbf)
     T.D.D 2582116.5 N (26.2 lbf)
Tear Propagation Resistance, Split Tear Method 
     @ 254 mm/min (10 in./min) M.D.D 193860.5 N/mm (345 lbf/in.)
     @ 254 mm/min (10 in./min) T.D.D 193883.3 N/mm (476 lbf/in.)
Tear Resistance, Trouser @ 200 mm/min 
     M.D.ISO 6383-173.3 N/mm
     T.D.ISO 6383-194.1 N/mm
Tensile Strength @ Yield 
     M.D.D 88253.7 MPa (7789 psi)
     T.D.D 88247.9 MPa (6947 psi)
Tensile Strength @ Break 
     M.D.D 88251.5 MPa (7469 psi)
     T.D.D 88246.7 MPa (6773 psi)
Elongation @ Yield 
     M.D.D 8825.8 %
     T.D.D 8824.7 %
Elongation @ Break 
     M.D.D 882444 %
     T.D.D 882557 %
Tensile Modulus 
     M.D.D 8822140 MPa (3.10 x 105 psi)
     T.D.D 8822153 MPa (3.12 x 105 psi)
Dart Impacth 
     @ -18°C (0°F)D 1709A Modified373 g
     @ 23°C (73°F)D 1709A Modified446 g
Injection Molded Properties (ASTM Method)
Specific GravityD 7921.3286
Tensile Stress @ BreakD 63824.7 MPa (3582 psi)
Tensile Stress @ YieldD 63856.3 MPa (8166 psi)
Tensile ModulusD 6382390 MPa (3.5 x 105 psi)
Flexural ModulusD 7902301 MPa (3.3 x 105 psi)
Flexural Yield StrengthD 79074.7 MPa (10831 psi)
Deflection Temperature 
     @ 0.455 MPa (66 psi)D 64867.7 °C
     @ 1.82 MPa (264 psi)D 64861.4 °C
Rockwell Hardness, R ScaleD 785111
Izod Impact Strength, Notched 
     @ 23°C (73°F)D 25666.03 J/m
     @ -40°C (-40°F)D 25639.59 J/m
Impact Strength, Unnotchedf 
     @ -20°C (-4°F)D 4812NB
     @ 23°C (73°F)D 4812NB
     @ -30°C (-22°F)D 4812NB
     @ -40°C (-40°F)D 48122911.33 J/m
Impact Resistance (Puncture), Energy @ Max. Load 
     2.5-mm (0.100-in.) Thick Plaques, @ 23°C (73°F)D 376333.4 J
     2.5-mm (0.100-in.) Thick Plaques, @ -40°C (-40°F)D 37634.23 J
     3.2-mm (0.125-in.) Thick Plaques @ 23°C (73°F)D 376334.27 J
     3.2-mm (0.125-in.) Thick Plaques @ -40°C (-40°F)D 37633.72 J
Injection Molded Properties (ISO Method)
Tensile Stress @ BreakISO 52725.1 MPa
Tensile Stress @ YieldISO 52756.2 MPa
Tensile ModulusISO 5272401 MPa
Flexural ModulusISO 1782334 MPa
Flexural Yield StrengthISO 17882.3 MPa
Deflection Temperature 
     @ 0.45 MPaISO 7566.2 °C
     @ 1.80 MPaISO 7561.1 °C
Izod Impact Strength, Notched, Type 1 Specimen, Type A Notch 
     @ 23°CISO 1806.24 kJ/m2
     @ -40°CISO 1803.71 kJ/m2
Impact Strength, Unnotched, Type 1 Specimenc 
     @ -20°CISO 180NB kJ/m2
     @ 23°CISO 180NB kJ/m2
     @ -30°CISO 180266.56 kJ/m2
     @ -40°CISO 180248.41 kJ/m2
Impact Resistance (Puncture), Energy @ Max. Loade 
     2.5-mm Thick Plaques @ 23°CISO 6603-238.93 J
     2.5-mm Thick Plaques @ -40°CISO 6603-23.44 J
     3.2-mm Thick Plaques @ 23°CISO 6603-238.04 J
     3.2-mm Thick Plaques @ -40°CISO 6603-22.36 J
Pellet Properties
Crystalline DensityD 1505 1.4 g/cm3
Bulk Density 
     PouredD 1895850 kg/m3 (53 lb/ft3)
     Vibrated 911 kg/m3 (57 lb/ft3)
Melt Density 
     @ 285°C (545°F)D 1238 (Note A- Table 2) 1.1 g/cm3
Crystalline Peak Melting Point (Tm)aD 3418238°C-461°F
Heat of FusionbE 79360 kJ/kg (14 cal/g)
Specific Heatb 
     @ 100°C (212°F)E 12691.5 kJ/kg·K (0.35 Btu/lb·°F)
     @ 200°C (392°F)E 12691.8 kJ/kg·K (0.43 Btu/lb·°F)
     @ 23°C (73°F)E 12691.1 kJ/kg·K (0.27 Btu/lb·°F)
     @ 280°C (536°F)E 12692.0 kJ/kg·K (0.48 Btu/lb·°F)
     @ 80°C (176°F)E 12691.4 kJ/kg·K (0.33 Btu/lb·°F)
Pellet Size 3.27 mm (0.1 in.)
Pellet Shape Cubical

aDetermined by DSC on the second heating cycle. Melting point rounded to the nearest 5°C because of variability of results.
bDetermined by DSC on the first heating cycle.
cNonbreak as defined by ISO 180 with 4-mm specimens.
dTest conducted at 38°C (100°F) and 100% relative humidity.
eTesting based on ISO 6603-2, using a striker diameter of 10 mm, a support and clamp diameter of 40 mm, and a velocity of 4.1 m/s.
fNonbreak as defined by ASTM D 4812 with 3.2-mm (0.125-in.) specimens.
gTest conducted at 30°C (86°F) and 50% relative humidity.
h12.7 mm (0.5 in.) dia. head, 127 mm (5 in.) dia. clamp, 660 mm (26 in.) drop



General
Eastapak polyesters are condensation polymers produced by a continuous melt-phase polymerization process followed by a solid-state polymerization process.

Comments
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.
Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

1/24/2019 4:10:00 PM