On April 27, 2026, latest industrial research revealed that zinc borate has become a highly efficient synergist in halogen-free and halogen-containing flame-retardant systems owing to its unique crystal structure and multi-dimensional mechanisms, providing an innovative solution for the safety protection of polymer materials. Its dehydration temperature matches the thermal degradation range of most engineering plastics, enabling precise endothermic cooling and fuel dilution. In halogen-containing systems, it replaces toxic antimony trioxide, promoting char formation and efficient smoke suppression through Lewis acid catalysis. In halogen-free systems, it forms a ceramic-like protective layer to solve melt dripping issues. When combined with phosphorus-based flame retardants, the "phosphorus-locking" effect of boron phosphate greatly enhances char layer stability. It also delivers excellent anti-afterglow performance, comprehensively boosting material fire safety. Green, adaptable, and high-performance, this technology drives flame-retardant materials toward higher efficiency, lower toxicity, and lower carbon emissions with broad application prospects.
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