An intumescent polymer composition includes a matrix polymer, an acid catalyst source, a nitrogen source and an ionic phyllosilicate synergist having substantial cationic exchange capacity. Particularly preferred ionic phyllosilicates are montmorillonoids whereas pentaerythritol phosphate is a preferred acid catalyst source.
膨胀聚合物组合物包括基质聚合物、酸催化剂源、氮源和具有强大阳离子交换能力的离子型植
硅体增效剂。特别优选的离子型植
硅体是
蒙脱土,而
季戊四醇磷酸酯是优选的酸催化剂源。