| 摘要 |
PURPOSE:To obtain a heat-insulating sound-absorbing material having flame- retardancy and high strength by collecting inorganic short fibers to form a heat-insulating sound-absorbing material, folding the material in zig-zag form in the direction of the plane, alternately connecting the upper part and the lower part of the plural vertical parts parallel to each other and integrating the fibers with a binder. CONSTITUTION:A thermosetting resin such as phenolic resin is applied to inorganic short fibers such as glass short fibers by spraying and the fibers are collected in the form of strands. The collected material is folded in zig-zag form in one direction of the plane and cured by a cure oven to obtain the objective heat-insulating sound-absorbing material composed of plural vertical parts 2 extending in the direction nearly perpendicular to the plane and nearly parallel to each other and plural connecting parts 3, 4 to alternately connect the adjacent vertical parts 2 at the top and the bottom of the parts. The upper connecting parts 3 form the upper face and the lower connecting parts 4 form the lower face of the material having nearly uniform thickness. The fibers are integrally bonded as the whole with a binder. |
