ELECTRIC INSULATING PLATE, PREPREG LAMINATED BODY, AND METHOD FOR MANUFACTURING THEM

摘要

PROBLEM TO BE SOLVED: To provide an electric insulating plate more excellent in electric insulation in electric insulating plates made of fluoroplastic fiber. SOLUTION: The electric insulating plate 1 is equipped with a base cloth 3 and a web layer 5. The web layer 5 consists of the fluoroplastic fiber, and is laminated by joining the base cloth 3 by interlacing on both surfaces of the base cloth 3. Moreover, at least one surface of the web layer 5 is heat- treated at a higher temperature than a melting temperature of the fluoroplastic fiber while pressurized.