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Ensinger PEI

DSM Biomedical CarboSil® 5 Thermoplastic Silicone Polycarbonate Polyurethane (TSPCU)
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polyurethane, TP; Silicone Polyurethane, Polycarbonate Based

Material Notes: A ground-breaking copolymer that combines the biocompatibility and biostability of conventional silicone elastomers with the processability and toughness of thermoplastic polycarbonate-urethanes

The silicone portion of CarboSil® TSPCU works synergistically with the polycarbonate component to improve stability. This medical grade polymer is highly biocompatible and well suited to be used in many types of medical devices.

Flexible CarboSil® TSPCU is comparable in tensile strength to traditional polycarbonate urethanes and derives additional biostability from the silicone portion. The material is adaptable to various fabrication techniques to accommodate many different device shapes. It can be extruded, injection or compression molded, solvent bonded, dipped coated and sprayed.

Widely Used Because of its tensile strength, biocompatibility and flexibility, CarboSil® TSPCU is used in a wide range of medical applications, including cardiovascular and nervous system electrostimulation, continuous glucose monitoring, drug eluting and orthopedic implants.

Tailor Made CarboSil® TSPCU can be enhanced with SME® technology to incorporate end groups that can address the needs of specific device applications (silicone end groups are standard). This eliminates the need for additional surface processing steps after the device component is fabricated.

Summary of Product Benefits

  • Biostable and biocompatible
  • Adaptable to many different processing techniques
  • Excellent mechanical properties
  • Thromboresistant
  • Enhanced with SME® technology
  • Comprehensive FDA Master File

Grade denotes silicone content (%)

Information provided by DSM Biomedical.

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.20 g/cc1.20 g/ccASTM D792
Melt Flow 18 g/10 min
@Load 1.20 kg,
Temperature 224 °C
18 g/10 min
@Load 2.65 lb,
Temperature 435 °F
ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 9090ASTM D2240
Tensile Strength, Ultimate 54.15 MPa7854 psiASTM D1708
Tensile Stress at Strain  8.301 MPa
@Strain 50 %
1204 psi
@Strain 50 %
ASTM D1708
 11.20 MPa
@Strain 100 %
1624 psi
@Strain 100 %
ASTM D1708
 33.57 MPa
@Strain 300 %
4869 psi
@Strain 300 %
ASTM D1708
Elongation at Break 435 %435 %ASTM D1708
 
Processing PropertiesMetricEnglishComments
Processing Temperature 190 - 210 °C374 - 410 °FOptimum Extrusion Conditions
 
Descriptive Properties
26 week Carcinogenicity Study in the Transgenic ras H2 Mouse ModelNo increase in induced tumor formation
Chronic Toxicity, Subcutaneous ImplantNo evidence of systemic toxicity
ColorClear to Amber Pellets
CytotoxicityNo evidence of causing cell lysis or toxicity
Genotoxicity: Bacterial Reverse Mutation (95% ethanol extract)Non-mutagenic
Genotoxicity: Bacterial Reverse Mutation (saline extract)Non-mutagenic
Genotoxicity: In Vitro Chromosomal AberrationNon-genotoxic
HemolysisNon-hemolytic
ISO Intracutaneous IrritationNo evidence of significant irritation
ISO Maximization SensitizationNo evidence of causing delayed dermal contact sensitization
Mouse Bone Marrow MicronucleusNon-genotoxic
Muscle Implantation, 12 weeksNon-irritant
Muscle Implantation, 2 weeksNon-irritant
USP and ISO Systemic ToxicityNo evidence of systemic toxicity
USP Pyrogen StudyNon-pyrogenic

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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