| 摘要 |
PURPOSE:To obtain a fiber molded body for thermoforming which is superior in light weight, rigidity, heat resistance, thermal shaping properties and sound absorbing properties, by a method wherein a thermoplastic resin films are laminated on both sides of a matlike matter mainly comprised of an inorganic fiber, on both the sides of which boardlike bodies are laminated, pressure is released after heating and pressurization at a temperature of the melting point or higher of the resin and the boardlike body is developed. CONSTITUTION:When a laminated material of a matlike matter mainly comprised of an inorganic fiber, a film comprised of thermoplastic resin and a boardlike body is heated, the resin is melted and the laminated material is pressurized and compressed under a molten state, the molten resin is infiltrated appropriately into an inorganic fiber. Then when pressure is released, as the inorganic fiber has been crushed once, a thickness is not restored sufficiently. Then when the boardlike body is developed, the matlike matter is pulled widthwise, the inorganic fiber is scattered bulkily, the thickness is restored and increased. Then when the boardlike matter is peeled off from the matlike matter by cooling the same, a molding having a thin film of appropriate noncommunication ratio on the surface is obtained. In addition, a matter whose melt-viscosity becomes 2,000-50,000 poise within a range of a temperature higher by 100 deg.C than the melting point is used as the thermoplastic resin. |
