MATERIALS | HIGH TEMPERATURE PLASTICS
Above: BASF’s Ultrason P2010 (left) has improved flow
now promoting Precite for centre consoles. “It has really outstanding properties for this application,” says Stier.
PESU and PPSU BASF is launching an engineering plastic that is particularly suited for automotive parts that come into contact with hot oil. Ultrason E0510 C2TR is a new polyethersulfone (PESU) that the company says shows very good tribological properties, high oil resistance and excellent dimensional stability,
even when temperatures fluctuate widely. The 10% carbon fibre reinforced grade can be used within a temperature range that starts at -30°C and goes all the way up to +180°C. “It is easy to process because of its low viscosity and therefore its very good flow properties,” says BASF. Ultrason E0510 C2TR is being pointed at the manufacture of various car parts that come into contact with oil: oil pumps, oil control pistons, pressure valves and high-speed components in automatic and manual gearboxes. It can also be employed in new applications for alternative drive technologies. “Due to its good flow properties, parts with wall thicknesses of less than one millime- tre can be injection-moulded without compromis- ing on their stability, durability and oil resistance,” says the supplier. The material’s low coefficient of thermal expan- sion (10.4x10-6
/K) makes possible parts that are
dimensionally stable and that can withstand rapid temperature changes from cold to hot without any damage. Tests according to ASTM G137 have shown that the sliding friction performance outperforms that of other “tribologically optimised” high-performance thermoplastics, BASF says: even
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IMAGE: BASF
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