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Technical Data Sheet
Eastman TREVA™ Engineering Bioplastic GC6021 Clear

Applications

Eyewear
Non-medical housings & hardware for elec
Windows

Key Attributes

BPA-free
Dimensional stability
Excellent chemical resistance
Excellent flow
Low birefringence

Product Description
Eastman TREVA™ is a new cellulose-based engineering bioplastic that offers both high performance and reduced environmental impact. TREVA is chemically resistant, dimensionally stable and has excellent flow, BPA-free and low birefringence.

The United States Department of Agriculture’s (USDA’s) BioPreferred® program has Certified Eastman TREVA™ Engineering Bioplastic GC6021 with a biobased content of 42%.

Typical Properties

Property^a	Test Method^b	Typical Value, Units^c
General Properties
Specific Gravity	D 792	1.22
Mechanical Properties (Injection Molded), ISO Method
Tensile Stress @ Break	ISO 527	44 MPa
Tensile Strength @ Yield	ISO 527	47 MPa
Elongation @ Yield	ISO 527	5 %
Elongation @ Break	ISO 527	41 %
Tensile Modulus	ISO 527	1881 MPa
Flexural Modulus	ISO 178	1725 MPa
Flexural Strength	ISO 178	64 MPa
Izod Impact Strength, Notched
@ 23°C	ISO 180	25 kJ/m²
@ -40°C	ISO 180	14 kJ/m²
Mechanical Properties
Tensile Stress @ Yield	D 638	50 MPa (7194 psi)
Tensile Stress @ Break	D 638	48 MPa (6903 psi)
Elongation @ Break	D 638	22 %
Flexural Modulus	D 790	1946 MPa (2.82 x 10⁵ psi)
Rockwell Hardness, R Scale	D 785	102
Izod Impact Strength, Notched
@ 23°C (73°F)	D 256	195 J/m (3.65 ft·lbf/in.)
@ -40°C (-40°F)	D 256	80 J/m (1.49 ft·lbf/in.)
Miscellaneous Properties
Mold Shrinkage	D 955	0.8 %
Permanence Properties
Water Absorption, 24 h immersion	D 570	2.2 %
Target Processing Conditions
Drying Temperature in a Desiccant Dryer		75 °C (170 °F)
Drying Time in a Desiccant Dryer		4 hours
Barrel Set Temperature^e		235 °C (455 °F)
Mold Temperature		85 °C (185 °F)
Injection Speed		30 mm/sec (1.2 in./sec)
Maximum Barrel Residence Time		4 minutes
Thermal Properties
Deflection Temperature^d
@ 0.455 MPa (66 psi)	D 648	114 °C (238 °F)
@ 1.82 MPa (264 psi)	D 648	100 °C (212 °F)
Vicat Softening Temperature^d	D 1525	130 °C (266 °F)

^aUnless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
^bUnless noted otherwise, the test method is ASTM.
^cUnits are in SI or US customary units.
^dConditioned 4 hours at 70°C (158°F).
^eWith actual measured melt temperature not to exceed 260°C (500°F).

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.

6/28/2018 2:48:26 PM