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PurSil™-10 80A Biocompatible Silicone Polyether Urethane

 

Subcategory: Silicone; Elastomer, TPE; Polyurethane, TP; Thermoplastic

Key Words: The Polymer Technology Group; Polyurethane; TPUR

Material Notes:
Combines the biocompatibility and biostability of conventional silicone elastomers with the processability and toughness of thermopastic urethane elastomers. Noncytotoxic and nonhemolytic. Non-Adhesive Silicone Surface; Outstanding Hydrolytic 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.

Available Properties
  • Density
  • Linear Mold Shrinkage
  • Hardness, Shore A
  • Tensile Strength, Ultimate
  • Tensile Strength, Yield
  • Elongation at Break
  • Flexural Modulus
  • Flexural Yield Strength
  • Tear Strength
  • Taber Abrasion, mg/1000 Cycles
  • Compression Set
  • Dielectric Constant
  • Dielectric Constant, Low Frequency
  • Dielectric Strength
  • CTE, linear 20°C
  • Vicat Softening Point
  • Glass Temperature
  • Transmission, Visible
  • Processing Temperature
  • Drying Temperature
  • Dry Time
  
Property Data

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