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Eastman DuraStar MN631 Polymer, Natural

Category Polymer , Thermoplastic , Polyester, TP , Polycyclohexylenedimethylene Terephthalate (PCT) , Glycol-Modified PCT (PCTG) Copolyester
Manufacturer Eastman Chemical
Trade Name DuraStar
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
Durastar Polymer MN631 contains a mold release. It has excellent appearance and is nearly water-clear. Its most outstanding features are toughness, chemical resistance, and excellent processing characteristics. MN631 has very good toughness. Easy to process with minimal drying time, it flows readily and fills the most intricate tools.Applications/UsesMedical
Physical Properties Metric English Comments
Specific Gravity 1.19 g/cc
1.19 g/cc
ASTM D792
Water Absorption 0.15 %
0.15 %
24h Immersion; ASTM D570
Linear Mold Shrinkage 0.0030 cm/cm
0.0030 in/in
ASTM D955
Mechanical Properties Metric English Comments
Hardness, Rockwell R 107
107
ASTM D785
Tensile Strength at Break 43.0 MPa
6240 psi
ASTM D638
Tensile Strength, Yield 50.0 MPa
7250 psi
ASTM D638
Elongation at Break 270 %
270 %
ASTM D638
Elongation at Yield 5.0 %
5.0 %
ASTM D638
Flexural Yield Strength 68.0 MPa
9860 psi
ASTM D790
Flexural Modulus 1.90 GPa
276 ksi
ASTM D790
Izod Impact, Notched 0.440 J/cm

@Temperature -40.0 °C
0.824 ft-lb/in

@Temperature -40.0 °F
ASTM D256
0.800 J/cm

@Temperature 23.0 °C
1.50 ft-lb/in

@Temperature 73.4 °F
ASTM D256
Izod Impact, Unnotched NB
NB
ASTM D4812
NB

@Temperature -40.0 °C
NB

@Temperature -40.0 °F
ASTM D4812
Puncture Energy 40.0 J
29.5 ft-lb
Puncture Resistance @Max Load, 23°C; ASTM D3763
38.0 J

@Temperature -40.0 °C
28.0 ft-lb

@Temperature -40.0 °F
Puncture Resistance at Max Load; ASTM D3763
Thermal Properties Metric English Comments
Deflection Temperature at 0.46 MPa (66 psi) 73.0 °C
163 °F
ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 66.0 °C
151 °F
ASTM D648
Vicat Softening Point 86.0 °C
187 °F
1kg load; ASTM D1525
Optical Properties Metric English Comments
Haze <= 1.0 %
<= 1.0 %
ASTM D1003
Transmission, Visible 92 %
92 %
Total Transmittance; ASTM D1003
Processing Properties Metric English Comments
Melt Temperature 230 - 280 °C
446 - 536 °F
Mold Temperature 15.0 - 30.0 °C
59.0 - 86.0 °F
Drying Temperature 70.0 °C
158 °F
Dry Time 4 hour
4 hour
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