以摩尔比为 50∶ 50 的氧化亚锡和五氧化二磷为原料，在 500 ℃ 下熔融制备亚锡 磷酸盐玻璃，再与三聚氰胺通过离子键结合形成三聚氰胺亚锡磷酸盐玻璃( MEPglass) ． 将 MEPglass 与二乙基次膦酸铝( AlPi) 用于尼龙 6( PA6) 的无卤阻燃，0． 5% MEPglass 和 9% AlPi 复配可使 PA6 达到 UL-94 V-0@ 3． 2mm 阻燃等级，比单独 AlPi 阻燃时 13% 的添加量 下降了 26． 9% ，而拉伸强度比单独 AlPi 阻燃体系提高 8． 5% ，熔体流动速率提高 13． 3% ． 锥形量热、热重 － 红外联用、热重分析以及残炭的扫描电镜和 X 射线能谱分析等表明， MEPglass 与 AlPi 在气相和凝聚相对 PA6 均存在较强的阻燃协效作用．

Stannous phosphate glass was prepared by melting stannous oxide and phosphorus pentoxide at a molar ratio of 50∶50 at 500 ℃，which was then combined with melamine by ionic bond to form melamine stannous phosphate glass ( MEPglass) ． Finally，MEPglass and aluminum diethylphosphinate ( AlPi) were employed to obtain halogen-free flame-retardancy of PA6． It is found that 0. 5% MEPglass and 9% AlPi can induce PA6 to reach UL94 V-0 @ 3. 2 mm rating，with a total relative addition reduction of 26. 9% ，as compared with the addition ( 13% ) of single AlPi，while the tensile strength improves by 8. 5% and the melt flow rate increases by 13. 3% ． Moreover，the results obtained from the cone calorimeter，thermogravimetry-infrared spectroscopy and thermogravimetric analysis of the samples，and scanning electron microscopy and X-ray energy spectrum analysis of carbon residue indicate that there is strong flame-retardant synergy of MEPglass and AlPi on PA6 in both the gas phase and the condensed phase．