Method of manufacturing adhesive-free laminate of aramid paper and polyphenylene sulfide film, and insulation material and insulation structure for rotating electric machinery

摘要

Disclosed is a method for manufacturing an adhesive-free laminate of an aramid paper (5) and a PPS sulfide film (7), the method comprising steps of: providing the aramid paper (5) made from aramid fibers and aramid pulp and subj ected to a plasma surface treatment; providing the PPS film (7) subjected to a plasma surface treatment; and laminating and bonding the plasma surface treated aramid paper (5) and the plasma surface treated PPS film (7) at a roll temperature of 30°C or higher but lower than 50°C under a linear load of 500 kgf/cm or higher with a pair of press rolls (1, 2), or at a roll temperature of 50°C or higher but lower than 100°C under a linear load of 200 kgf/cm or higher with a pair of press rolls.