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  • Medical Device Link . Specialty Compounds for Medical Applications: An Introduction
    , polyether block amide elastomer (PEBA), flexible nylon, polyethylene, styrenic block copolymer, or fluoropolymer. It is important to select a base resin or family that has most of the attributes required in the finished compound. For instance, if high tensile strength is called for in a semiflexible
  • Polyurethane
    chemical resistance. Polyether-based foams havi greater hydrolysis resistance, are easier to process, and cost less. Polyester-based foams have higher mechanical propertie.% better oil resistance, and more uniform Cill structure. Both types can be rayed, sP' molded, foamed in place, or furnished'ir
  • Polyurethane Material Properties
    have two distinct groups,. Abrasion Resistance. +. –. which will be discussed next. As a family Water Resistance. –. +. of materials, polyether-based urethanes. Fuel/Oil/Grease Resistance. +. –. are not as effected by water as polyes-. Compression Set, 250C. ters, but cannot match polyesters when
  • Technical reference: Fluid compatibility
    . +100. +100. +100. +100. PEEK. Polyether-etherketone. +250 -65. +300 -65. +150. +150. +160. +100. Materials. Continual material service temperature range C. Intermitent material service temperature range C. Motor Oil based greases. Silicon oil greases. +100 -30. +250 -50. Maximum continous service
  • Thermoplastic Selection
    . It is available in natural (transparent amber cast), stock or custom colors. It is available in hardnesses from flexible to semi-rigid. There are two types of TPUs: . Polyester based TPU - Better physical characteristics and resistant to fuels and oils. . Polyether based TPU - Better for use with water
  • Adhesive Selection and Surface Preparation
    . Cloth. EPDM. Fiberglass. Foam - Polyester Urethane. Foam - Polyether Urethane. Foam - Polyethylene. Glass/Ceramic. Metal - Painted. Metal - Powder Coated. Neoprene. Silicone Foam. Polycarbonate. Polyethylene. Polypropylene. PVC - Mildly Plasticized. Rubber - Extruded. Stainless Steel. Environment
  • Medical Device Link .
    . Ability to be sterilized via ethylene oxide gas or gamma irradiation. Ability to retain elastomeric properties at low temperature. When employed as part of an invasive device, both aliphatic and aromatic polyether-based polyurethanes soften considerably within minutes of insertion in the body, reducing

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