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Polysulfone failure

Wool and O Connor [33] stated that the self-diffusion coefficient should follow a Williams-Landel-Ferry (WLF) temperature dependence providing that the mode of failure remains the same between samples healed at different temperatures between Tg and Tg + 100°C. Using a reference temperature of 196°C (469 K), the WLF relationship for PI700 polysulfone can be written as follows [38] ... [Pg.234]

Liver Acute liver failure Porcine hepatocytes Polysulfone hollow fiber Extracorporeal support device Detoxification activity, bridge-to-transplantation [20]... [Pg.3124]

Kohlman and Petrie (1995) produced blends of 5 %, 10 % and 20 % by weight of polysulfone in polycarbonate by melt blending. The average impact strength and the percent of ductile failures decreased with increasing amount of polysulfone. The ballistic testing results that were reported showed a linear relationship exists between the percent of polysulfone in the blend and the critical velocity for complete penetration. [Pg.1470]

Owing to their high Tg and the hydrolytic resistance of the aromatic sulfone backbone structure, polysulfones display reliable long-term performance in hot water and steam even under autoclave conditions. Unlike the other high-Tg, transparent polymers, such as polycarbonate (PC), polycarbonate-ester (PCE), and polyetherimides (PEI), the sulfone polymers are not prone to crazing and failure... [Pg.1851]

The often used FPL etdi of an aluminum-lithium alloy bonded with polysulfone leads to interfacial (at the metal oxide/polymer interface) failure (38) which is a surprisingly uncommon type of failure. The results leading to this assignment are shown as XPS C Is and O Is narrow scan spectra in Figure 15. This definitive assignment of failure mode is based on the fact that one failure surfece has an oi gen photopeak similar to the pretreated adherend before bonding and the other failure surfece has an 0 gen photopeak similar to the adhesive. [Pg.140]

Figure 15. XPS carbon Is and oxygen Is photopeaks for pretreated aluminum alloy after acid etch and before bonding (FPL) two failure surfaces following bonding with polysulfone and testing in the wedge configuration (FPL MFS and FPL AFS) and, neat polysulfone (PSF) (38). Figure 15. XPS carbon Is and oxygen Is photopeaks for pretreated aluminum alloy after acid etch and before bonding (FPL) two failure surfaces following bonding with polysulfone and testing in the wedge configuration (FPL MFS and FPL AFS) and, neat polysulfone (PSF) (38).
Alternating Flexural Stress vs Cycles to Failure, GF-1006 Polysulfone. 3-74... [Pg.369]

Zhang conducted extensive creep and creep to failure tests of polycarbonate and polysulfone for both single creep loads and multiple step-up or step-down creep loads as illustrated in Fig. 11.21 and developed an equation of the form. [Pg.400]

Figure 13.48 Relationship between the stress intensity range AK, corresponding to an arbitrary value ofdc/dN 7.6 x 10 m/cycle, and the maximum stress intensity factor range AKmax observed at failure for a group of polymers. The polymers are ( ) cross-linked polystyrene, (2) PMMA, (3) PVC, (4) LDPE, (5) polystyrene, (6) polysulfone, (7) high-impact polystyrene, (8) ABS resin, (9) chlorinated polyether, (10) poly(phenylene oxide), (11) nylon 6, (12) polycarbonate, (13) nylon 6 6 and (14) poly(vinylidene fluoride). (Reproduced from Manson, I.A. and Hertzberg, R.W. (1973) Fatigue Failure in Polymers. CRC Crit. Rev. Macromol. Sci., 1, 433. Copyright (1973) Taylor and Francis.)... Figure 13.48 Relationship between the stress intensity range AK, corresponding to an arbitrary value ofdc/dN 7.6 x 10 m/cycle, and the maximum stress intensity factor range AKmax observed at failure for a group of polymers. The polymers are ( ) cross-linked polystyrene, (2) PMMA, (3) PVC, (4) LDPE, (5) polystyrene, (6) polysulfone, (7) high-impact polystyrene, (8) ABS resin, (9) chlorinated polyether, (10) poly(phenylene oxide), (11) nylon 6, (12) polycarbonate, (13) nylon 6 6 and (14) poly(vinylidene fluoride). (Reproduced from Manson, I.A. and Hertzberg, R.W. (1973) Fatigue Failure in Polymers. CRC Crit. Rev. Macromol. Sci., 1, 433. Copyright (1973) Taylor and Francis.)...

See other pages where Polysulfone failure is mentioned: [Pg.88]    [Pg.623]    [Pg.213]    [Pg.451]    [Pg.137]    [Pg.320]    [Pg.200]    [Pg.961]    [Pg.4508]    [Pg.121]    [Pg.263]    [Pg.214]    [Pg.133]    [Pg.8]    [Pg.78]    [Pg.150]    [Pg.349]    [Pg.366]    [Pg.168]   


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Polysulfones

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