Syensqo, a materials company previously part of the Solvay Group, has expanded its Ajedium™ Films product line for slot liners in electric motors. The new range includes polyphenylene sulfone (PPSU) based products designed to replace traditional paper slot liners in motors up to 400V.
The new Ajedium™ PPSU slot liner films address the issues commonly associated with paper and paper laminate slot liners in medium to low-voltage e-motors such as high moisture sensitivity, which requires additional humidity management, and the need for a secondary step to remove excess scrap after insertion. The PPSU slot liner films offer robust mechanical performance, including high stiffness to prevent breakage during assembly.
Compared to the existing NKN (aramid paper and polyimide film) laminates, Ajedium™ PPSU films can help manufacturers reduce the thickness of slot liners by over 42%, thereby maximizing the potential copper slot fill. Furthermore, PPSU slot liners require less energy throughout the manufacturing process. Their carbon footprint can be further reduced with optional grades using ISCC Plus mass balance certified circular feedstock.
Syensqo will unveil the new Ajedium™ PPSU slot liner films from May 14 to 16, 2024, at the global Coil Winding, Insulation & Electrical Manufacturing Exhibition (CWIEME) in Berlin at Booth 42F27.
Brian Baleno, Head of Automotive Marketing at Syensqo Materials, explains, “The challenge with many paper and paper laminate slot liners in medium to low-voltage e-motors is two-fold. High moisture sensitivity requires additional humidity management, and quite often they must be deducted in a secondary step after insertion to remove excess scrap. Our new Ajedium™ PPSU slot liner films eliminate both of these issues, while also offering durable mechanical performance, including high stiffness to prevent breakage during assembly.”
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