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DSM Biomedical CarboSil® 10 90A Biocompatible Silicone Polycarbonate Urethane  (discontinued **)

Category Polymer , Thermoplastic , Elastomer, TPE , Polyurethane, TP , Silicone Polyurethane, Polycarbonate Based , Silicone, Thermoplastic
Manufacturer
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DSM Biomedical CarboSil® 10 90A Biocompatible Silicone Polycarbonate Urethane  (discontinued **).pdf
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Material Notes:
Combines the biocompatibility and biostability of conventional silicone elastomers with the processability and toughness of thermoplastic urethane elastomers. Noncytotoxic and nonhemolytic. Low-Energy Silicone Surface; Outstanding Oxidative Stability; Hydrophobic; High Tensile Strength; Optically Clear.PurSil™ silicone-polyetherurethane and CarboSil™ silicone-polycarbonateurethane are true thermoplastic copolymers containing silicone in the soft segment. These high-strength thermoplastic elastomers are prepared through a multi-step bulk synthesis where polydimethylsiloxane (PSX) is incorporated into the polymer soft segment with polytetramethyleneoxide (PTMO) (PurSil) or an aliphatic, hydroxyl-terminated polycarbonate (CarboSil). The hard segment consists of an aromatic diisocyanate, MDI, with a low molecular weight glycol chain extender. The copolymer chains are then terminated with silicone (or other) Surface-Modifying End Groups™. Aliphatic (AL) versions of these materials, with a hard segment synthesized from an aliphatic diisocyanate, are also available.PurSil and CarboSil can be melt fabricated by conventional extrusion, injection molding, or compression molding techniques. Rod, pellet, and tubing extruded from these materials displays an excellent surface finish and low gel content. In addition, these materials are heat-sealable, readily blended with fillers, and easily post-formed.Information provided by the manufacturer, Polymer Technology Group.
Physical Properties Metric English Comments
Density 1.18 g/cc
0.0426 lb/in³
ASTM D792
Linear Mold Shrinkage 0.011 cm/cm
0.011 in/in
4.0" disk; ASTM D955
Mechanical Properties Metric English Comments
Hardness, Shore A 90
90
Tensile Strength, Ultimate 39.9 MPa
5790 psi
ASTM D1708
Tensile Strength, Yield 7.20 MPa

@Strain 50.0 %
1040 psi

@Strain 50.0 %
ASTM D1708
Elongation at Break 420 %
420 %
ASTM D1708
Flexural Yield Strength 2.00 MPa
290 psi
5% deflection; ASTM D-790
Flexural Modulus 0.0414 GPa
6.00 ksi
1% secant; ASTM D-790
Tear Strength 94.7 kN/m
540 pli
Die "C"; ASTM D624
Taber Abrasion, mg/1000 Cycles 20
20
H-18 wheel; ASTM D-1044
Compression Set 26 %
26 %
22 hrs @ 25°C; ASTM D395
Thermal Properties Metric English Comments
CTE, linear 170 µm/m-°C

@Temperature 20.0 °C
94.2 µin/in-°F

@Temperature 68.0 °F
ASTM E831
Vicat Softening Point 84.0 °C
183 °F
ASTM D1525
Optical Properties Metric English Comments
Transmission, Visible 80 %
80 %
Manufacturer notes 'clear' but doesn't quantify
Electrical Properties Metric English Comments
Dielectric Constant 4.7

@Frequency 60 Hz
4.7

@Frequency 60 Hz
ASTM D150
Dielectric Strength 19.7 kV/mm
500 kV/in
ASTM D149
Processing Properties Metric English Comments
Processing Temperature 185 - 200 °C
365 - 392 °F
Extrusion
Drying Temperature 82.0 - 104 °C
180 - 219 °F
Dry Time 4 - 6 hour
4 - 6 hour
to moisture < 0.01%
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