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A Review on Some Selected Bio-Based (Green) Flame Retardants

S.A. Chukwunwike* and K.J. Okafor

Bio-based flame retardants are taking their share in the world of flame retardant formulations. Sustainable halogen-free flame retardants are derived for various industrial applications. However, the scientific community has produced significant biobased additives for polymers from renewable resources. The challenging insight is to take advantage of the chemical structure of bio-based resources to explain their specific mechanism of retardance. Bio-based flame retardants retard flame by forming chars. The chars formed to serve as a heat sink, preventing heat transfer to the bulk of the material. Studies have shown that there is a limited amount of published scientific work on this subject.