Carbon fiber-reinforced PBT

BASF (Ludwigsafen, Germany) is introducing its first carbon fiber-reinforced Ultradur to its PBT (polybutylene terephthalate) portfolio. The specialty Ultradur B4300 C3 LS is said to feature feature low electrostatic charge along with good conductivity. This makes it particularly suitable for components in sensitive areas of measurement and control technology for machines and automotive electronics. Due to the anti-static PBT, less dust or dirt adheres to the component; this allows it to work reliably and permanently — even in unfavorable usage conditions — and without damage associated with electrostatic discharge. In areas with explosion hazards, the use of this conductive Ultradur grade also reduces the risk of electrostatic loading and possible sparking.

The material, which is reinforced with 15 percent carbon fiber, reportedly has a low volume and surface resistance. Its water absorption is minimal, it is laser-markable and its good mechanical properties are similar to those of a standard PBT with 30 percent glass fibers. In addition, Ultradur B4300 C3 can be combined with other PBT grades by welding or bonding, and is also suitable for complex, thin-walled components.

Possible applications include parts in cars or machines with gases or fluids flowing through, fast-moving components in textile machines or conveyor belt elements that are subject to static charge due to friction. Other fields of usage include machines in paper processing, printers and transportation packaging for sensitive electronic goods that require electrostatic discharge protection.