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中文摘要：
将三聚氰胺氰尿酸盐（MCA）阻燃剂添加到玻纤增强的尼龙66复合材料（GF-PA66）中。利用UL-94实验对MCA在复合材料中的阻燃效果进行研究;通过扫描电子显微镜（SEM）分析了燃烧后的样品形貌,并利用热重分析法对复合材料的热分解行为进行了研究。结果表明：MCA可使玻纤增强尼龙66复合材料达到UL-94V-0级阻燃效果;MCA晶体被均匀地分散于尼龙基体中,在燃烧时MCA通过自身吸热分解,产生不可燃气体,实现气相阻隔,从而起到阻燃作用,并在复合材料自熄面上留下纳米级气孔。
英文摘要：
The flame retardant melamine cyanurate （MCA） was added into glass fiber reinforced nylon 66 composites （GF-PA66）. The UL-94 test was used to investigate the flame retardant effect of MCA on GF- PA66 composites. The morphology of burnt samples was observed via Scanning Electronic Microscopy （SEM） and Thermal Gravimetric（TG） analysis was used to observe the thermal decomposition behaviors of GF-PA66. The UL-94 results demonstrated that the flame retardant effect can reach UL-94 V-0 rate. The SEM and TG results showed that MCA dispersed homogenously in nylon matrix, which could adsorb heat and release noncombustible gas to isolate the samples from the air, and thus prevented fire from spreading and left nano-size pores on burning surface.
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