Specialty chemicals company Lanxess is expanding its investment in a portfolio of halogen-free flame retardant compounds based on polybutylene terephthalate and polyamide (PA 6, PA 66).
Alexander Radeck, Business Unit for High Performance Materials (HPM) Applications at Lanxess, said: 'Our new materials are comparable to and even superior to newer materials containing halogen flame retardant packaging in terms of performance and processing. We believe In the future, the sales of these products will be greatly increased, and they have many applications in areas such as Industry 4.0, electric vehicles and digital networked building systems, home appliances and consumer electronics. "
PBT product line includes 13%, 25% and 30% glass fiber reinforced materials and non-reinforced materials, despite its use of non-halogen flame retardant packaging, but its elongation at break up to 7% or more.It passed the US test The best classification was achieved by the Underwriters Laboratories' standard fire test, which the German company claims is its tracking resistance up to 600 volts.
Radeck adds: 'We anticipate the use of such flowable materials in many applications such as those that require a high level of electrical insulation and high dimensional stability, one of which has a glass fiber content of Twenty percent of the products perform as well as their sister products, showing not only high flame retardancy that is less corrosive to metals but also good heat aging and color stability at high temperatures, a wide processing window and Applicability of high contrast laser marking.
In addition, PBT compounds also show good results in the glow-wire test, and related products are currently in development.These tests evaluate the ignition and after-burn properties of plastics after contact with overheating or incandescent metal parts.Radeck states: 'We Research has shown that halogen flame retardant packaging and halogen-free flame retardant packaging can support the PBT composite good glow resistance.New materials in the end product glow wire test also achieved good results.This test is very demanding High, because the final product may have complex geometries and metal inserts, often exhibiting poorer performance than a simple test sample.
A new product in Halogen Free Flame Retardant Polyamide is optimized for laser transmission welding processes and is increasingly used to connect electrical and electronic components because it is limited to limited thermal loads and is dust free At 1.5mm black thin walls, the light transmittance of the material in the standard wavelength range of laser welding is still over 50%, ensuring high speed and rapid transport of heat input during soldering. The connection area melts faster to achieve More cost-effective production. "Radeck said:" Polyamides have a flame-retardant package with almost no blooming of the components, meaning almost no deposits are formed on the mold surface during injection molding.