关键词：聚合物；复合材料;层;力学性能;形态;塑料
摘 要：Initial steps were taken in the study of processing mixtures of a polymer and a preceramic polymer to produce a hybrid material that contains a region of gradual transformation from a polymer to a ceramic. It is thought to be a first step toward the eventual development of a hybrid that is graded from a polymer matrix composite to a ceramic matrix composite. Thermal and elemental analysis, and morphology characterization of RD-730 preceramic polymer blends, which convert to silicon carbide upon pyrolysis, and Matrimid A/B polymer (a bismaleimide), were carried out as a function of cure cycle. Cure cycles were chosen to vary the resin viscosity during processing in order to affect the amount of phase separation observed. The results were then used to associate processing parameters with the miscibility of the two resins and the likelihood of producing a hybrid with mechanical and thermal properties that fall between those of the two constituents. High RD-730 loadings were achieved without phase inversion, the glass transition (Tg) of the blended material was shown to be significantly influenced by post-cure, and thermal gradients observed.