【摘要】 将自制的羟基锡酸锌(ZHS)-还原氧化石墨烯(RGO)杂化材料(ZHS-RGO)和氢氧化镁(MH)协效应用于软质聚氯乙烯(PVC)中。通过氧指数测定仪、微型量热测定仪和锥形量热仪分析了ZHS和ZHS-RGO杂化材料分别与MH协效对软质PVC阻燃及消烟性能的影响。结果表明,ZHS和ZHS-RGO与MH协同应用在PVC中具有很好的协同阻燃抑烟效果;样品PVC/10ZHS-RGO/5MH的热释放速率峰值为436kW/m~2,烟释放总量为23.62m2,相比于PVC/10ZHS/5MH分别降低了38.8%和12.0%;杂化材料中的RGO具有良好的物理阻隔作用。更多还原

【Abstract】 A self-made zinc hydroxystannate(ZHS)/reduced graphene oxide(RGO)hybrid(ZHSRGO)was synergized with magnesium hydroxide(MH)to prepare flame-retardant soft PVC,and synergistic effects of ZHS/MH and ZHS-RGO/MH on flame retardant performance and smoke suppression of the resulting soft PVC were investigated by limiting oxide index,micro-scale combustion calorimetry(MCC)and cone calorimetry(CCT).The results indicated that there was a synergistic effect between MH and ZHS or ZHS-RGO on the flame retardant performance and smoke suppression of the soft PVC.PVC/10 ZHS-RGO/5 MH samples presented a peak heat release rate of 436 kW/m~2 in MCC test and total smoke release of 23.62 m2 in CCT test,which was lower than those of PVC/10 ZHS/5 MH sample by 38.8 % and 12.0 %,respectively.RGO in the hybrid exhibited a good physical barrier effect.更多还原