Yuan Liu, Qi Wang
Oct 1, 2006
Citations
1
Influential Citations
79
Citations
Quality indicators
Journal
Polymer Degradation and Stability
Abstract
Abstract A solid acid, phospho-tungstic acid (PTA), has been used to catalyze the pentaerythritol–melamine phosphate (PER–MP) reaction to synthesize intumescent flame retardant, melamine salt of pentaerythritol phosphate (MPP) used in flame retardant polypropylene (PP). This novel and environmentally friendly synthesis technology well solves the problems of conventional preparation methods. PTA plays a double-role: on one hand, it remarkably enhances the conversion of the above reaction and decreases the reaction temperature; on the other hand, it acts as an effective synergist with MPP and greatly improves the flame retardancy; accordingly, no additional process is needed to remove PTA after the reaction, and the products of the catalyzed reaction were directly incorporated with PP to prepare high-performance flame retardant materials. The catalytic and synergistic effects of PTA, as well as the flame retardancy and mechanical properties of the corresponding flame retardant PP were investigated.