PRE-IMPREGNATED FIBRE-REINFORCED COMPOSITE MATERIAL AND FIBRE-REINFORCED COMPOSITE CERAMIC MATERIAL, OBTAINED BY FORMING AND SUBSEQUENT PYROLYSIS OF SAID PRE-IMPREGNATED MATERIAL
摘要:
The invention relates to a pre-impregnated fibre- reinforced composite material in laminar form, obtained impregnating a fibrous mass with a polymeric binder composition and intended to be subjected to successive forming and pyrolysis operations to produce a fibre- reinforced composite ceramic material. The polymeric binder composition is based on one or more resins chosen from the group consisting of siloxane resins and silsesquioxane resins, and can optionally comprise one or more organic resins. The polymeric binder composition is a liquid with viscosity between 55000 and 10000 mPas at temperatures between 50°C and 70°C. The polymeric binder composition forms a polymeric binding matrix, not cross-linked or only partially cross-linked that fills the interstices of the fibrous mass. The invention also relates to a method for making said pre-impregnated fibre-reinforced composite material in laminar form. The invention further relates to a fibre-reinforced composite ceramic material, obtained by forming and subsequent pyrolysis of a pre-impregnated fibre- reinforced composite material, as well as a method for making said material.
0/0