LANXESS offers new halogen-free, flame-retardant polyesters and polyamides
• Non-reinforced PBT with high elongation at break • PBT compound with high glow-wire resistance • Laser-weldable polyamide 66
- Non-reinforced PBT with high elongation at break
- PBT compound with high glow-wire resistance
- Laser-weldable polyamide 66
Cologne – Specialty chemicals company LANXESS is expanding its portfolio of halogen-free, flame-retardant compounds based on polybutylene terephthalate (PBT) and polyamide (PA 6, PA 66). “In terms of properties and processing, our new materials are on par with, or even superior to, their counterparts containing halogen-based flame retardance packages. We believe that sales of these products will benefit in the future from global trends, such as Industry 4.0, electromobility and digitally networked building systems, household devices and consumer electronics,” explains Alexander Radeck, applications developer in the LANXESS High Performance Materials (HPM) business unit.
New additions to the Pocan BFN PBT product line, which previously encompassed materials with 13, 25 and 30 percent glass fiber reinforcement, include Pocan BFN2502, BFN4221 and BFN6410. Pocan BFN2502 is a non-reinforced material that displays a high elongation at break of over seven percent despite its halogen-free flame retardance package. It passes the UL 94 standard fire tests of the U.S. testing organization Underwriters Laboratories, achieving the best classification of V-0 (0.4 millimeters). Another advantage is its high tracking resistance of 600 volts (CTI A, Comparative Tracking Index, IEC 60112). “We see good opportunities for this easy-flow material in components requiring high-level, consistent electrical insulation properties and high dimensional stability,” Radeck adds.
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Pocan BFN4221 has a glass fiber content of 20 percent. Like its “sister products”, this compound displays not only high flame retardance attributable to a low tendency toward corrosion in contact with metals, but also good thermal aging resistance and color stability at elevated temperatures, a wide processing window and good suitability for high-contrast laser marking.
Tailored to LED technology
Pocan BFN6410 targets applications in lighting and LED technology. Radeck: “Its light reflection of more than 94 percent at 450 nanometers is unusually high, meaning that when used as a housing material, it reflects LED light almost entirely.” It also offers high blue light resistance and high lightproofness even at thin wall thicknesses. The material further displays good mechanical behavior and a low tendency to warp. It achieves the best classification in UL 94 fire testing of V-0 (0.75 millimeters).
