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以碳微球(CMSs)、氢氧化钠和氯化镁为原料,采用液相沉积法制备了Mg(OH)_2/CMSs复合阻燃材料,通过场发射扫描电镜(SEM)和X射线衍射仪(XRD)分析了材料的微观形貌和结构;并结合Mg(OH)_2/CMSs复合阻燃材料与聚对苯二甲酸乙二醇酯(PET)共混制备Mg(OH)_2/CMSs/PET复合材料,通过数显氧指数测试仪分析其阻燃性能。结果表明,通过液相沉积法Mg(OH)_2包覆在CMSs表面,且包覆效果较好;Mg(OH)_2/CMSs复合阻燃材料燃烧时分解生成的氧化镁(MgO)、水和残余炭层,使得Mg(OH)_2/CMSs/PET复合材料的极限氧指数由PET的21.0%增加到27.5%,并具有优良的抑烟性和抗熔滴性,提高了PET材料的阻燃性能。
Mg (OH) _2 / CMSs composite fire retardant materials were prepared by liquid phase deposition method using carbon microspheres (CMSs), sodium hydroxide and magnesium chloride as raw materials. The structures of the composites were characterized by field emission scanning electron microscopy (SEM) and X-ray diffractometer ) Were used to synthesize Mg (OH) _2 / CMSs / PET composites by combining Mg (OH) _2 / CMSs flame retardant composites with polyethylene terephthalate Materials, through the digital oxygen index tester to analyze its flame retardant properties. The results showed that Mg (OH) _2 was coated on the surface of CMSs by liquid deposition method, and the coating effect was good. Magnesium oxide (MgO), water and The residual carbon layer increased the limiting oxygen index of Mg (OH) 2 / CMSs / PET composites from 21.0% to 27.5% of PET and has excellent smoke suppression and droplet resistance, performance.