| 摘要 |
PROBLEM TO BE SOLVED: To obtain an inorganic sheet having a high void ratio and good corrugation processability by compounding inorganic fibers having a flat cross section with an organic binder and inorganic fine fibers and/or an inorganic filler and forming the resultant mixed slurry into the sheet. SOLUTION: A mixed slurry prepared by compounding an organic binder such as polyvinyl alcohol fibers or NBKP pulp fibers in an amount of 5-150 pts.wt. based on the solid content and 100 pts.wt. inorganic fibers such as glass fibers having 2-8 flatness ratio, 2-30μm diameter expressed in terms of fibers of a circular cross section and >=5 aspect ratio and inorganic fine fibers having 0.5-4μm diameter such as glass fibers or ceramic fibers in an amount of 1-500 pts.wt. based on 100 pts.wt. inorganic fibers and/or an inorganic filler such as sepiolite is formed into an inorganic sheet by a wet or a dry method.
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