EFFICIENCY OF UTILIZATION OF AMMONIUM POLYPHOSPHATE FOR CONTROLLING THE PYROLYSIS OF POLYVINYL ALCOHOL

摘要

Derivative thermogravimetry, thermogravimetry, infrared spectroscopy and chemical methods of analysis have shown that the impregnation of polyvinyl alcohol fibers with ammonium polyphosphate intensifies dehydration processes and leads to a loss of polymer thermoplasticity upon thermal oxidation. The data of scanning electron microscopy and sorption properties point to the effect of ammonium polyphosphate on the macrostructure of carbon fiber.