Halogen and heavy metal-free flame retardant for polymer materials

摘要

Despite decades of industrial experience and research in the field of flame retardants, most flame retardant additives are still either not sufficiently effective or are toxicologically questionable. For some years now, expandable graphite (a natural mineral-based material) has provided an effective and environmentally friendly alternative to conventional flame retardant additives and has already proved successful in a number of applications.