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Ensinger PEI

DSM Biomedical PurSil® 10 Thermoplastic Silicone Polyether Urethane  (discontinued **)
Categories: Polymer; Thermoplastic; Polyurethane, TP; Silicone Polyurethane, Ether Based

Material Notes: PurSil® thermoplastic siliconepolyether-urethane (TSPU) is a novel copolymer that is strong, yet flexible with proven biocompatibility and biostability. Leveraging the benefits of both silicone elastomers and polyether urethanes, PurSil® TSPU has improved in vitro and in vivo stability. It has been used in medical device applications, including spinal implants and cardiac rhythm management. This polymer is backed by an established FDA Master File.

Comparable strength to traditional polyether urethanes (PEU) and added biostability from the silicone co-soft segment and silicone end groups. Adaptable to various fabrication techniques to accommodate many different device shapes. Capable of being extruded and injection or compression molded, as well as solvent bonded, dipped, coated and sprayed. Available in aromatic and aliphatic versions

Non-cytoxic, Non-hemolytic, Non-genotoxic, nonmutagenic, non-pyrogenic

Key Words: 10% Silicone
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.11 g/cc1.11 g/ccASTM D792
Linear Mold Shrinkage 0.012 cm/cm0.012 in/in4.0 inch Disk; ASTM D955
Linear Mold Shrinkage, Transverse 0.010 - 0.021 cm/cm0.010 - 0.021 in/inFlame Bar; ASTM D955
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 8181ASTM D2240
Tensile Strength, Ultimate 39.24 MPa5692 psiASTM D1708
Elongation at Break 571 %571 %ASTM D1708
Flexural Strength 1.45 MPa210 psiat 5% deflection; ASTM D790
Flexural Modulus 0.0371 GPa5.38 ksiASTM D790
Tear Strength 61.4 kN/m350 pliDie 'C'; ASTM D624
Taber Abrasion, mg/1000 Cycles 2525H-18 Wheel; ASTM D1044
Compression Set 23 %
@Temperature 25.0 °C
23 %
@Temperature 77.0 °F
22 hours; ASTM D395
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 7.0
@Frequency 60 Hz
7.0
@Frequency 60 Hz
ASTM D150
Dielectric Strength 13.4 kV/mm340 kV/inASTM D149
 
Thermal PropertiesMetricEnglishComments
CTE, linear 187.3 µm/m-°C
@Temperature 20.0 °C
104.1 µin/in-°F
@Temperature 68.0 °F
ASTM E-831
Vicat Softening Point 82.0 °C180 °FASTM D1525
Glass Transition Temp, Tg -68.0 °C-90.4 °FASTM DSC
 
Processing PropertiesMetricEnglishComments
Processing Temperature 182 - 204 °C360 - 399 °FOptimum Extrusion Conditions
Drying Temperature 82.0 - 104 °C180 - 219 °F
Dry Time 4 - 6 hour4 - 6 hourto moisture < 0.01%
 
Descriptive Properties
ColorClear to Amber Pellets

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PBIOS008 / 79722

Polyurethane

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