AUTOMOTIVE DESIGN
MATERIALS • PROCESSES • FINISHES
Monolayer
insulation solution S
pecialty materials manufacturer Solvay has launched a new monolayer compound that eliminates the adhesion and
sustainability constraints of conventional polyetheretherketone (PEEK) or enamel insulation processes. KetaSpire KT-857 is a new PEEK extrusion compound designed specifically for copper magnet wire insulation in electric motors. The development of the custom-engineered insulation material was driven by the ongoing trend of OEMs moving towards higher density batteries and electric powertrains operating at 800V or above in order to achieve greater electric vehicle (EV) range. “Higher voltage e-motors typically
require thicker magnet insulation up to 180 microns,” explains Brian Baleno, Head of Marketing, Automotive, at Solvay Materials. “In contrast to applying
the insulation with a single PEEK extrusion layer, the polyimide process involves multiple application passes, which can potentially introduce defects that tend to magnify as the layers are added. On the other hand, one of the biggest challenges of standard PEEK extrusion is to obtain an adequate level of adhesion of the insulation to the copper magnet wire. Our KetaSpire PEEK KT-857 technology eliminates both of these constraints.” KetaSpire is designed to ensure
better adhesion in a faster and more cost-efficient monolayer process, while also providing additional sustainability benefits to customers. For instance, the
KetaSpire PEEK is designed for monolayer e-motor magnet wire insulation
extrusion of a single insulation layer requires less energy, and in contrast to the enamel process there is no need to use any volatile organic compounds (VOCs). The material also delivers a more uniform insulation layer.
For more information visit
www.solvay.com
30
www.engineerlive.com
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