| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbon fiber-based heat insulation material on which a surface layer that suppresses deterioration, gas permeation, or the like is formed.SOLUTION: A manufacturing method of carbon fiber-based heat insulation material includes: a lamination step in which a carbon fiber-based heat insulation base material, an adhesion sheet in which binder to be carbonized by thermal processing is impregnated in a carbon fiber non-woven fabric sheet, and a carbon-based sheet made of a material different from the carbon fiber-based heat insulation base material and the carbon fiber non-woven fabric sheet are sequentially laminated to form a laminate material; an adhesion step in which the laminated materials are adhered while the materials are pressed from the carbon fiber-based heat insulation base material side and the carbon-based sheet side; and a thermal processing step in which the laminated materials are thermally processed to carbonize the binder after the adhesion step. |
