| 摘要 |
PROBLEM TO BE SOLVED: To provide a film for a speaker diaphragm having excellent mechanical strength and wear resistance.SOLUTION: This film for a speaker diaphragm, which comprises an aromatic polyether ketone resin (I) and a fluorine resin (II), is characterized in that the degree of crystallinity of the aromatic polyether ketone resin (I) is at least 10%, and the fluorine resin (II) is a copolymer of tetrafluoroethylene and a perfluoro ethylenic unsaturated compound represented by formula (1): CF2=CF-Rf1 (Rf1 is -CF3 or -ORf2; Rf2 is a C1-5 perfluoroalkyl group).SELECTED DRAWING: None |
