The nano-concentrates and flame retardant nano-coating were prepared in thhis study.The effect of nano-SiO2 on the corrosion resistance and fire resistance of ammonium polyphosphate-pentaerythritol-melamine(APP-PER-ME...The nano-concentrates and flame retardant nano-coating were prepared in thhis study.The effect of nano-SiO2 on the corrosion resistance and fire resistance of ammonium polyphosphate-pentaerythritol-melamine(APP-PER-MEL)coating was investigated by differential thermal analysis(DTA),scanning electron microscopy(SEM),effective thermal conductivity(λ/d),X-ray photoelectron spectroscopy(XPS)and fire protection test.The chemical action and endothermic effect of ammonium polyphosphate,pentaerythritol and melamine in traditional flame retardant coating were damaged by salt spray condition,whereas the flame-retardant additives in the nano-coating demonstrated the good chemical interaction in salt spray condition.The uniformly dispersed nano-SiO2 particles could improve corrosion resistance of the coating,and hence nano-coating could remain the good fire-resistant properties even after 500 h salt spray test.展开更多
文摘The nano-concentrates and flame retardant nano-coating were prepared in thhis study.The effect of nano-SiO2 on the corrosion resistance and fire resistance of ammonium polyphosphate-pentaerythritol-melamine(APP-PER-MEL)coating was investigated by differential thermal analysis(DTA),scanning electron microscopy(SEM),effective thermal conductivity(λ/d),X-ray photoelectron spectroscopy(XPS)and fire protection test.The chemical action and endothermic effect of ammonium polyphosphate,pentaerythritol and melamine in traditional flame retardant coating were damaged by salt spray condition,whereas the flame-retardant additives in the nano-coating demonstrated the good chemical interaction in salt spray condition.The uniformly dispersed nano-SiO2 particles could improve corrosion resistance of the coating,and hence nano-coating could remain the good fire-resistant properties even after 500 h salt spray test.
