Eastman Tenite 285A2R30018 Cellulose Acetate Butyrate, Natural, Trsp

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Eastman Tenite 285A2R30018 Cellulose Acetate Butyrate, Natural, Trsp
Categories:	Polymer; Renewable/Recycled Polymer; Thermoplastic; Cellulosic; Cellulose Acetate Butyrate, Molded
Material Notes:	Applications: Ophthalmics Optical safety frames Product Description: Tenite cellulosic plastics are noted for their excellent balance of properties - toughness, hardness, strength, surface gloss, clarity, and a warm feel. The mechanical properties of Tenite cellulosic plastics differ with plasticizer levels. Lower plasticizer content yields a harder surface, higher heat resistance, greater rigidity, higher tensile strength, and better dimensional stability. Higher plasticizer content increases impact strength. Tenite cellulose plastics are available in natural, clear, selected ambers, or smoke transparents and black translucents. Color concentrates are available in let-down ratios from 10:1 to 40:1. Tenite Cellulose Acetate Butyrate 285-18 has a plasticizer level of 18% and contains an odor mask. Information provided by Eastman.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.17 g/cc	1.17 g/cc	ASTM D792
Water Absorption	1.3 % @Time 86400 sec	1.3 % @Time 24.0 hour	Immersion; ASTM D570

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	26	26	ASTM D785
Tensile Strength at Break	30.7 MPa	4450 psi	ASTM D638
Tensile Strength, Yield	23.5 MPa	3410 psi	ASTM D638
Elongation at Break	50 %	50 %	ASTM D638
Flexural Strength	30.4 MPa	4410 psi	ASTM D790
Flexural Modulus	1.034 GPa	150.0 ksi	ASTM D790
Izod Impact, Notched	1.10 J/cm @Temperature -40.0 °C	2.06 ft-lb/in @Temperature -40.0 °F	ASTM D256
	3.58 J/cm @Temperature 23.0 °C	6.71 ft-lb/in @Temperature 73.4 °F	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	75.0 °C	167 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	61.0 °C	142 °F	ASTM D648
Vicat Softening Point	94.0 °C	201 °F	ASTM D1525

Optical Properties	Metric	English	Comments
Transmission, Visible	90 %	90 %	transparent; thickness not quantified

Descriptive Properties
Formula Number	285		Odor Mask
Plasticizer	18 percent
Soluble Matter Loss	0.1 percent		ASTM D570
Weight Loss on Heating	0.9 percent		ASTM D707, 72 hrs, 80°C

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PE8825 / 129670

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