PMMA/粉煤灰/Mg(OH)2复合材料的阻燃隔热性能研究

以粉煤灰为功能填料、氢氧化镁[Mg(OH)2]为阻燃剂、甲基丙烯酸甲酯（MMA）为聚合单体、过氧化二苯甲酰（BPO）为引发剂，采用梯度温度本体聚合工艺制备了聚甲基丙烯酸甲酯（PMMA）/粉煤灰/Mg(OH)2复合材料，通过扫描电子显微镜测试了复合材料的微观形貌，并研究了其燃烧性能和隔热性能。研究发现，复合材料中Mg(OH)2添加量为35 份（质量份数，下同）时，阻燃级别为HB级；粉煤灰的添加量为60～80份时，复合材料制得的板材厚度≤20 mm时，隔热效果好。

Investigation on Fire Retardant and Heat Insulation Performance of PMMA/Fly Ash/Mg(OH)2 Composite

PMMA/fly ash/Mg(OH)2 composites were prepared through gradient temperature bulk polymerization. The microstructure of the composite was viewed by using JCM 5000 desktop scanning electron microscope (SEM). Its combustion and heat insulation performance had been studied. When the loading of Mg(OH)2 was 35 phr, its fire retardant level was HB. When the content of the fly ash was 60~80 phr, and the sample thickness was less than or equal to 20 mm, and its heat insulation effect was very good.