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11th November 2019, Monaco

Xencor LFT for first all-polymer e-Bike

Stajvelo’s e-Bike. © Stajvelo

Stajvelo’s e-Bike. © Stajvelo

At the recent K Show in Düsseldorf, Germany, Stajvelo introduced the world’s first composite urban e-bike, which has been injection-moulded using Solvay’s Xencor long-fibre polyarylamide (PARA) compound.

Monaco-based Stajvelo selected the compound for its ability to meet stringent structural, mechanical, and aesthetic requirements. Xencor PARA significantly extends the performance capabilities of Solvay’s Ixef PARA compounds, which have successfully replaced metal in medical devices, automotive exteriors and small appliances where a highly aesthetic surface finish is required. 

“Our e-bike design embodies the hard-to-achieve balance between form and function, due in part to Xencor PARA’s unique combination of properties,” said Thierry Manni, founder and CEO of Stajvelo. “Thanks to Solvay’s polymer expertise and processing technology support, we were able to design a manufacturing process with optimal function integration and time-saving assembly operations.”

Solvay’s Xencor LFT compounds typically contain between 30-60% fibre reinforcement, depending on the polymer and grade. The fibre constitutes a critical structural element by creating an entangled 3D fibre skeleton within the final moulded part. The strong fibre skeleton provides vastly superior structural properties and dimensional stability compared to traditional highly-filled, short-fibre reinforced polymers.

Xencor LFT compounds are intended to bridge the price-to-performance gap between short fibre thermoplastics (SFT) and advanced composite materials. They combine high strength, outstanding crash/impact performance, thermal stability, very low creep, excellent surface aesthetics, and smooth processing characteristics.

They are suitable for semi-structural applications in a variety of markets including automotive, advanced transportation, construction, industrial, and consumer, as well as sports and leisure.

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