将勃姆石(BM)添加到聚丙烯(PP)基体中,利用共混的方法制备了PP/BM复合材料,系统研究了BM用量对PP/BM复合材料阻燃性能、热性能和力学性能的影响。结果表明:加入BM后,PP/BM的LOI逐渐提高,抑制了熔滴的滴落,UL 94等级达到V-0级,复合材料的阻燃性能显著提高;随着BM用量的增加,PP/BM的热分解温度和燃烧后的残炭率逐渐提高,热变形温度随BM用量的增加先升高后降低;BM的加入能够改善PP/BM复合材料的力学性能;少量BM在PP基体中分散性良好,且随着BM用量的增加,PP/BM复合材料的粗糙度逐渐提高;但当BM用量为30%时,BM在PP基体中形成团聚体。 PP / BM composites were prepared by blending BM with polypropylene (PP) matrix. The effects of BM dosage on flame retardancy, thermal properties and mechanical properties of PP / BM composites Impact. The results showed that the LOI of PP / BM increased gradually after BM was added, the dripping of droplet was suppressed, the UL 94 grade reached V-0 grade, and the flame retardancy of the composites was significantly improved. With the increase of BM, The thermal decomposition temperature and residual char yield of BM increased gradually, and the thermal deformation temperature increased firstly and then decreased with the increase of BM content. The addition of BM could improve the mechanical properties of PP / BM composites. A small amount of BM dispersed in PP matrix The surface roughness of PP / BM composites increased gradually with the increase of BM content. However, BM aggregates formed in PP matrix when the amount of BM was 30%.