为了提高聚苯乙烯（PS）的阻燃性能，降低其燃烧过程中的热释放和烟雾释放，通过静电自组装法制备一种新型阻燃剂（MAP），并将MAP-聚磷酸铵（APP）-季戊四醇（PER）组成的新型膨胀型阻燃剂（N-IFR）与硼酸锌（ZB）复配后添至PS中。结果表明：PS-22%N-IFR/1%ZB复合材料的极限氧指数提高至28.3%，垂直燃烧测试达到UL-94 V-0等级。与纯PS相比，其峰值热释放速率、总热释放量和总烟释放量分别下降67.6%、11.8%和25.9%。ZB与N-IFR的协同阻燃作用促进了高质量炭层的形成，并有效抑制了PS基体的热释放与烟释放。

To enhance the flame retardancy of polystyrene (PS), reducing its heat and smoke release during combustion, a novel flame retardant (MAP) was prepared via electrostatic self-assembly, and the new intumescent flame retardant (N-IFR) composed of MAP-polyphosphoric ammonium (APP)-pentaerythritol (PER) was compounded with zinc borate (ZB) and added to PS. The results showed that the limiting oxygen index of PS-22%N-IFR/1%ZB composites increased to 28.3%, achieving UL-94 V-0 rating in vertical burning tests. Compared to pure PS, the peak heat release rate, total heat release, and total smoke production decreased by 67.6%, 11.8% and 25.9%, respectively. The synergistic flame retardant effect of ZB and N-IFR promoted the formation of a high-quality char layer and effectively suppressed the heat and smoke release of the PS.