Polyphenylene Sulfide: Toray Industries’ New Polymer Film for 5G Circuit Boards
Toray Industries has announced Torelina, a new type of polyphenylene sulfide (PPS) film highlighted for its dielectric characteristics, flame retardancy, and chemical robustness. The new, proprietary technology controls the crystal structure of PPS films while improving thermal resistance.
By controlling the orientation of film molecular chains, Torelina is said to attain a 98ppm/°C coefficient of thermal expansion in the thickness direction.
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