TCA-HF9000 is a silicone-modified natural fibrous silicate structure used as a flame retardant synergistic char-forming agent in low-smoke, halogen-free flame retardant thermoplastic materials. Its unique short-fiber structure effectively adsorbs gases to achieve flame retardant synergistic effects, promotes the density and strength of char formation, suppresses dripping, and can improve the mechanical properties of thermoplastic materials.