The Effect of Aluminosilicates on the Intumescent Ammonium Polyphosphate-Pentaerythritol Flame Retardant Systems: An X-ray Photoelectron Spectroscopy Study

摘要

The influence of zeolite and clay (montmorillonite) on thermal degradation of the classical ammonium polyphosphate/pentaerythritol (APP/PER) system was explored by X-ray Photoelectron Spectroscopy (XPS), a surface sensitive technique. These aluminosilicates do modify the degradation reaction which occurs between APP and PER. Information on the ratios of O/C, P/N and Si/Al are calculated and it was found that some of these change with temperature. This data in then used to understand the degradation process.