FIELD: processing plastic mass, technology for production of heat-resistant insulating materials on the base of polyimide films having fluoroplastic coating. SUBSTANCE: film is activated by corona discharge. Water suspension of fluoroplastic is applied at least on one side of film. Then film is dried and melt. Melting is carried out at 365-375 C within 120-180 s. Treatment by corona discharge may be carried out at current in 0.5-1.0 A. EFFECT: operation temperature of desired film is increased up to 300 C, decreased friction coefficient. 2 cl, 1 tbl
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Authors
Dates
1998-08-20—Published
1996-04-11—Filed