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制备了PP(聚丙烯)/Al(OH)_3/Mg(OH)_2/硼酸锌和PP/Al(OH)_3/Mg(OH)_2阻燃复合材料,并测定了复合材料的氧指数(OI)、水平燃烧速度和烟密度。结果表明,OI随着阻燃剂质量分数的增加而升高,随着粒径的增大而降低;燃烧速度随着阻燃剂用量的增加而下降,随着粒径的增大先升后降;烟密度随着阻燃剂用量的增加而降低,随着粒径的增大而增大;添加硼酸锌后具有显著的抑烟效果。
(PP) / Al (OH) 3 / Mg (OH) 2 / zinc borate and PP / Al (OH) 3 / Mg (OH) 2 flame retardant composites were prepared and the oxygen index OI), horizontal burning rate and smoke density. The results showed that the OI increased with the increase of the mass fraction of flame retardant and decreased with the increase of the particle size. The burning rate decreased with the increase of the amount of flame retardant, and then increased with the increase of particle size The smoke density decreased with the increase of the amount of flame retardant and increased with the increase of particle size. The addition of zinc borate had a significant effect of suppressing smoke.