Polyimide fibers

Extrusion- Injection acid copolymer. maleic acid Putty, Glass-fiber- Polyimide,... 

All the plants mentioned are operating with membranes based on hollow fiber polyimides or spiral-wound CA, which is considered proven technology. The environmental aspect related to CO2 as a green house gas has triggered the development of better membranes for CO2 removal—this is more closely discussed in Section 5.2.3. 

Table II. FLEXURAL STRENGTH OF GRAPHITE FIBER/POLYIMIDE COMPOSITES3...

Spaulrad . [Spaulding Composites] Woven glass fiber polyimide q>oxy lamintes ftn elec, insulation, magnet constructitm. 

Styrid. [Specialty Prods.] Woven glass fiber polyimide qx>xy lamintes styrene emissions reducer for fiberglass molding. 

The major applications of LCP films in electronics are multilayer boards and multichip modules, and flexible printed circuits. Current materials used in the.se applications include polyimide film, high performance thermoplastic film such as polyphenylene sulfide and polyetherether ketone, and fiber reinforced composites such as quartz fiber-polyimide. The price of these materials for electronic packaging is in the range of. 50 to. l(K)/lb, so LCPs can compete very effectively at their current prices. Based on a two to three times increase in price... 

Figure 5. Photoacoustic FT-IR spectrum of a methanol washed carbon fiber/polyimide matrix composite (13).

Figure 16. XPS carbon Is photopeak for carbon fiber/polyimide matrix composites methanol washed (G) and exposed to an oxygen plasma for (H) 0.5 min (I) 1 min (J) 2 min (K) 5 min (L) 10 min (M) 20 min (13).

Figure 17. Effect of pretreatment on crack propagation of carbon fiber/polyimide matrix composites bonded in the wedge configuration and aged 1(KX) hours at 204 C (40).

D. J. D. Moyer and J. P. Wightman, "Characterization of Surface Pretreatments Carbon Fiber/Polyimide Matrix Composites," Surface and Interface Analysis. 14. 496-504 (1989). 

CMS membrane by pyrolysis of hollow-fiber polyimide membrane (Jones and Koros, 1994a). From Jones and Koros, 1994a. 

Kuhn, H.H., Skontrop, A. and Wang, S.S., High Temperature Physical and Chemical Aging in Carbon Fiber Polyimide Composites Experiment and Theory in Recent Advances in Composite Materials, (S.R. White, H.T. Hahn, and W.T. Jones, Ed. s), ASME MD Vol. 56, 1995, p. 193-202. 

Table 25.5 Si-C Fiber/Polyimide Laminates Retention of Strength at 315°C...

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