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Polyetherimide
and has inherent flame resistance and low-smoke evolution. The resin is produced by the General Electric Co. under the Ultem trademark. Polyetherimide resin is available in an unreinforced grade for general-purpose injection molding, blow molding, foam molding, and extrusion, in four glass-fiber
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Thermoplastic Composites
of thermoplastics, including nylon 6/6, polysulfone, polyester, polyphenylene sulfide, polyetherimide, polyetheretherketone, and ETFE and PFA fluorocarbons. The carbon-fiber-reinforced materials, at two to four times the cost of comparable glass-reinforced thermoplastics, offer the ultimate in tensile
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Reinforced Plastics Make Metals Look Weak
thermoplastics such as nylon, polypropylene, polyphenylene sulfide (PPS), polyetherimide (PEI), and polyetheretherketone (PEEK) with carbon, glass, or aramid reinforcement fibers. They can easily be molded into complex structural shapes and are ideally suited for production quantities of between
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Down-to-earth role for imidized polymers
specified for thermal insulators, high-performance bearings, electrical connectors, and ablative structures. The family of imidized polymers include polyimide (PI), polyamideimide (PAI), polybenzimidazole (PBI), and polyetherimide (PEI). Chemically, all contain at least one imide linkage (carbonyl
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Down-to-earth role for imidized polymers
. The solid-fuel power system serves as a backup for cellphone switches and hospital applications where even brief interruptions in power can cause problems. A wide range of semiconductor-device handling parts are machined from polyetherimide. This conductive PEI based material called Semitron ESd 410C has
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Optical Gels: A Light Bridge to the Future (.pdf)
assure high dimensional. Ideally, the index of the gel equals the index of the mating. stability, their viscoelasticity provides strain relief between. glass or plastic, for example, 1.46 for fused silica or 1.66 for. precision optical parts as they undergo small dimensional. polyetherimide
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Stiff Competition
styrene (ABS), polycarbonate, polysulfone (PSU), polyethersulfone (PES), polyarysulfone (PAS), and polyetherimide (PEI). Polymers with semicrystalline morphologies have ordered or crystalline molecules dispersed within regions composed of random amorphous molecules. They include polypropylene (PP
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Design Properties Profile
. N/A. 0.2. 0.4. 13920. 1.8. N/A. styrene (ABS). Styrene-acrylonitrile (SAN). BF-1006. 40. 1.31. 0.19. 0.1. 0.3. 17690. 1.4. 1799450. Polystyrene. CF-1006. 40. 1.27. 0.05. 0. 0.2. 8990. 0.8. 1679100. Arylates. Polycarbonate. DF-1006 EM MR. 50. 1.43. 0.10. 0.1. 0.5. 19140. 2.7. 1378950. Polyetherimide