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首页> 美国政府科技报告 >Polymeric Materials for Advanced Aircraft and Aerospace Vehicles.
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Polymeric Materials for Advanced Aircraft and Aerospace Vehicles.

机译：高级飞机和航空航天飞行器用高分子材料。

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The synthesis, kinetics and mechanical properties of unique resin systems for use in structural composites is reported. The general class of resins studied is acetylene terminated oligomers, designated ATX. Applying an ideal processing window analysis technique expedites the processing of materials for mechanical testing. A new method for determining a real processing window has been perfected and applied to systems having very fast cure reaction times. Mechanical relaxation spectra determination to better correlate material structure with mechanical properties is considered. An extension of composite concetps - blending a rigid rod polymer with its flexible coil analog - has yielded molecular composites with excellent properties. The preliminary synthesis, morphology, and mechanical properties of the pure rigid rod polymeric material (films and fibers) and the molecular composites (cast ad precipitated films) are presented. (Author)

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