ELECTRICAL & ELECTRONICS | MATERIALS
Current affairs: materials in E&E
Circuit breakers, automotive components – such as motors and housings – and a water electrolyser are some recent examples of electrical and electronic applications
While sustainability is of growing importance within plastics, a variety of materials are also helping to boost sustainability elsewhere – such as in the generation of green energy. In one instance, Estonian electrolyser manufac-
turer Stargate Hydrogen is using Ultrason polysul- phone (PSU) from BASF to make the frames in its stacks used for alkaline water electrolysers (AWEs) – which produce hydrogen from water. The PSU replaces metals such as nickel, resulting in much lighter stacks. This is possible because the material offers high temperature and chemical resistance in harsh alkaline conditions and can withstand high stack pressures. Because it can be injection-moulded, it provides greater design flexibility than metal. “Ultrason combines light weight with outstanding performance, helping us to improve the efficiency and lower the cost of alkaline electrolysers,” said Marko Virkebau, CEO of Stargate Hydrogen. The patent-pending design of the stacks
incorporates frames with a diameter of 85cm. Ultrason enables them to be large, robust, and durable, with a focus on higher operating tem- peratures and longer lifetimesIts stable mechani- cal properties make it suitable for current (90 °C)
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and future (>100 °C) electrolysers. Jochen Schmid, of global business development
for Ultrason at BASF, added: “With Ultrason, our customers can upscale green hydrogen production and advance the transformation to clean energy.” BASF’s Ultrason portfolio meets the needs of
AWE and other types of electrolyser, such as proton exchange membrane (PEM), and anion exchange membrane (AEM).
High-heat PA66 BASF says that its portfolio of PA66/6T compounds bridges the gap between conventional PA66 and polyphthalamide (PPA). It says its Ultramid T6000 outperforms PA66 in mechanical and dielectric properties in humid, high-temperature environ- ments. Its lower moisture absorption ensures good dimensional stability, closing the gap on its own PPA portfolio. Ultramid T6000 allows for easy processing at mould temperatures similar to those of standard PA66. Due to its good colourability, compounds with different white shades can be made, as well as durable orange and grey. The flame-retardant grades use a non-halogenated flame retardant. Good flowability makes it suitable for producing
October 2025 | INJECTION WORLD 21
Main image: BASF’s Ultrason PSU is being used in the manufacture of alkaline water electrolysers
IMAGE: STARGATE HYDROGEN/BASF
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