(4180)SYNTHESIS AND SYNERGISTIC FLAME RETARDANCY OF FERRUM AMMONIUM PHOSPHATE/HALLOYSITE NANOCOMPOSITES

摘要

The ferrum ammonium phosphate/halloysite (FAP/MWCNT)was synthesized and employed in combination with Exolit~R OP 1230 to enhance the flame retardancy and mechanical properties of epoxy by chemical crosslinking and doping methods. Energy Dispersive Spectrometer（EDS）, Scanning Electron Microscope (SEM), Thermal Gravity Analysis (TGA), micro-scale combustion calorimetry (MCC)and UL-94 were conducted to determine the components, structure and performance of EP/FAP/MWCNT polymer nanocomposites (PNCs). The effects of Fe~(2+)-to-NH_4-to-PO_4~(3-)mole ratio on the composition and yield of FAP/MWCNT and FAP/MWCNT-to-OP 1230-to-epoxy ratio on the mechanical and flame retardancy properties of of PNCs were discussed and optimum conditions of this process were determined. Results of this work show a potential application in the environmental/materials engineering cross-disciplinary field: wastewater treatment and recycling.