Polyether-imide carbonate

Thermoplastics for aircraft interiors have been evaluated by this technique (10b) in accordance with the FAA specification (peak rate of heat release of 65 kilowatts per meter squared (Kw/m 2) or less). In these tests (10b) Polyether sulfone demonstrated marginal compliance. For Polyether imide (PHI) and PEI/Polydimethyl siloxane copolymers peak heat-release rates were well below the specified value. The overall trend suggested a possible correlation of peak heat release values with aromatic carbon content in the polymers evaluated. 

Recently much effort has been made to induce liquid crystallinity in polyimides. Kricheldorf et al., Chen et al., and Sato et al. have suggested that an aromatic im-ide ring may be an excellent mesogen through their studies on thermotropic liquid-crystalline polyimide-esters [41-54] and polyimide-carbonates [55, 56]. Some thermotropic properties of aromatic polyether-imides have also been reported by Asanuma et al. [57]. 

Figure 13.2 Rear surfaces of 4.2-mm-thick carbon Hbre-reinforced polyether imide panels following air-blast testing [24]. (a) Impulse = 3.3 N s (b) Impulse = 3.7 N s (c) Impulse = 5.0 N s (d) Impulse = 6.1 N s.

A.B. Fuertes,T.A. Centeno, Carbon molecular sieve membranes from polyether-imide, Micropor. Mesopor Mat., 1998,26,23-26. 

Polyaraide-imide Polyaraide-imide Polyether fluoroethylene Polyether fluoroethylene Polyether fluoroethylene Polyethylene-tetrafluoroethylene Glass fiber Graphite 60% bronze 15% and 25% glass fiber 15% graphite 30% carbon fiber... 

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