| 摘要 |
PURPOSE:To obtain a light weight material having excellent strength and processability by laminating thermoplastic resin films both the surfaces mat-like nonwoven cloth of inorganic fiber, laminating thermoplastic elastic sheet on a face of the film, heating at a specific temperature, compressing and releasing pressure. CONSTITUTION:A thermoplastic resin film is laminated on a face of mat-like nonwoven cloth containing inorganic fiber such as glass fiber as principal component and preferably combined with polyethylene fiber, etc., while said thermoplastic resin film and a thermoplastic elastomer are laminated on the other face of the nonwoven cloth so as the elastomer to be outside. Then resultant laminate is heated at a temperature above melting points of said thermoplastic resin and said thermoplastic elastomer, thus pressed by a hot press and the mat-like nonwoven cloth is impregnated with said thermoplastic resin, then pressure is released with keeping the temperature at heating, thus thickness of said laminate is recovered to readily afford a light weight composite material having excellent physical strength and processability. Said composite material is suitable as various inner members such as ceiling material of automobile. |
