| 摘要 |
PURPOSE:To obtain a total heat exchange element having a small shrinkage rate at low cost by a method wherein glass fibers are mixed into ceramic fibers and organic fibers such as pulp, and a binding agent is added and mixed thereto, thereafter, the mixture is made to a sheet by a sheet manufacturing process. CONSTITUTION:The ceramic fibers such as siliceous fibers, silica-alumina fibers or the like and the organic fibers such as pulp or the like are mixed with glass fibers and a binding agent selected properly from a water-soluble binding agent (polyvinyl alcohol or the like), an emulsion type binding agent (acrylic ester or the like), powder type binding agent (ethylene/vinyl acetate copolymer or the like), a solution type binding agent (liquid synthetic rubber or the like), an inorganic binding agent (colloidal cilica or the like) or the like is added and mixed, thereafter, the mixture is processed by a sheet manufacturing process. The obtained sheet-like material is passed through a hot-press roll to make a paper-like material and the total heat exchange element is manufactured from the paper-like material. |
