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Synergistic effect between α-zirconium phosphate(α-ZrP) and ammonium sulfamate(AS) for enhanced flame retardant properties of Polyamide 6(PA6) was investigated by using oxygen index instrument,cone calorimeter,thermogravimetric analyzer(TGA),Instron universal test machine and scanning electron microscopy(SEM).PA6/AS/α-ZrP ternary hybrid materials with various contents of α-ZrP and AS were fabricated by melt-mixing method.The result from flammabihty indicated that the Limiting oxygen index(LOI) and Underwriters Laboratories-94(UL-94) rating of PA6/AS/α-ZrP were significantly accelerated under the coordinating function of α-ZrP and AS.Moreover,the thermal stability for PA6/AS/α-ZrP studied by TGA also demonstrated this synergistic effect between α-ZrP and AS on the heat resistance.The effects of the usage amount of α-ZrP and AS on mechanical properties were analyzed by using uniaxial tensile test.It was found that the addition of AS provided negative effects on the tensile strength of PA6/AS/α-ZrP,however,the adverse trends that mentioned above could be overcome by using the well dispersed α-ZrP.
Synergistic effect between α-zirconium phosphate (α-ZrP) and ammonium sulfamate (AS) for enhanced flame retardant properties of Polyamide 6 (PA6) was investigated by using oxygen index instrument, cone calorimeter, thermogravimetric analyzer (TGA) and scanning electron microscopy (SEM) .PA6 / AS / α-ZrP ternary hybrid materials with various contents of α-ZrP and AS were fabricated by melt-mixing method.The result from flammabihty indicated that the Limiting oxygen index (LOI) and Underwriters Laboratories-94 (UL-94) rating of PA6 / AS / α-ZrP were significantly accelerated under the coordinating function of α-ZrP and AS. More over, the thermal stability for PA6 / AS / α-ZrP studied by TGA also appeared this synergistic effect between α-ZrP and AS on the heat resistance. These effects of the usage amount of α-ZrP and AS on mechanical properties were analyzed by using uniaxial tensile test. It was found that the addition of AS provided negative effects on the tensile stren gth of PA6 / AS / α-ZrP, however, the adverse trends that said above be overcome by using the well dispersed α-ZrP.