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3A Composites reports that a leading wind turbine OEM’s study demonstrates that AIREX T92.100 SealX is more cost effective for blade infusion that alternative PET foam core materials, significantly reducing costs and time.
The analysis was conducted in the actual production of a 6500 kg hybrid core blade, where AIREX T92.100 SealX and standard PET foam core were compared in shear web and shell infusion. The blade total core was 151 m2 and weighed 342 kg, the shear web was 100% PET core, and the shells hybrid.
With AIREX T92.100 SealX the total resin saving was more than 3%, equivalent to 57 kg less weight in comparison with the standard PET core: T92.100 SealX was applied in 57 m2 and saved 1 kg/m2; the core weight reduction was 29%; and the coating surface savings in total $3/m2. The total blade weight saving was 1%. Furthermore, the infusion time was reduced due to the resin saving and resin flow speed over the AIREX product’s surface.
“AIREX T92 SealX is much more cost-effective than standard PET or PVC foam cores for wind turbine blade infusion,” states Eric Gauthier, President of Global Key Accounts at 3A Composites Core Materials. “With AIREX T92 SealX we can bring increasing savings to our wind customers.”
AIREX T92 SealX is used in wind turbine blades, boats, automotive and other applications. Despite the reduced resin uptake, AIREX T92 SealX is said to feature the same skin adhesion as any conventional PET core material, and all mechanical properties of the core – including fatigue resistance – are unaffected by the SealX technology.
Image provided by 3A Composites
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