HKUST-1@APP环氧树脂阻燃复合材料的合成与性能
Fine Chemicals(2023)
Abstract
使用溶剂热法将HKUST-1[Cu3(BTC)2,BTC为均苯三甲酸根离子]负载到聚磷酸铵(APP)表面制得了 HKUST-1@APP,然后将HKUST-1@APP与环氧树脂(EP)混合后固化制备了 HKUST-1@APP/EP阻燃复合材料.采用SEM、EDS、XRD、FTIR对HKUST-1@APP进行了表征,通过垂直燃烧测定仪、氧指数测定仪、TGA、电子拉力机对HKUST-1@APP/EP复合材料进行了性能测试.结果表明,当HKUST-1@APP的添加量为总体系质量的5%时,制得的HKUST-1@APP/EP复合材料的极限氧指数为27.5%,垂直燃烧测试(UL-94)通过V-1级,样品残炭的AD/AG(拉曼光谱中无定形碳的碳原子与晶体碳中sp2杂化的碳原子振动分别形成的D峰与G峰的峰面积比)降至0.043,而添加总体系质量5%APP的EP复合材料的AD/AG为0.3161,说明HKUST-1@APP还可以改善EP燃烧过程中产生的炭层,使炭层更连续、石墨化程度更高.
MoreKey words
ammonium polyphosphate,metal organic frameworks,epoxy resin,flame retardant properties,rubber and plastics auxiliaries
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