首页> 外文会议>International symposium on flame-retardant materials technologies >STUDY OF AMMONIUM POLYPHOSPHATE-TIO2 NANOCOMPOUND IN INTUMESCENT FLAME RETARDED NANOCOMPOSITE COATING
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STUDY OF AMMONIUM POLYPHOSPHATE-TIO2 NANOCOMPOUND IN INTUMESCENT FLAME RETARDED NANOCOMPOSITE COATING

机译:直纹火焰阻燃纳米复合材料涂层中磷酸二铵-钛纳米复合材料的研究

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摘要

Titanium dioxide (TiO2) is a kind of common colourant in paint and coating.Our work has revealed its synergistic effect with Ammonium polyphosphate (APP) in the waterborne flame retarted coating.With well dispersion of TiO2 nanoparticles in APP, APP-TiO2 nanocompound has been applied and the fire resistancy of the coating has been improved observably.The flame retardant mechanism was investigated by means of cone calorimeter (CONE), Thermogravimetry analysis (TGA), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).TGA and XRD data verify that TiO2 nanoparticles can react with the decomposition product of APP and titanium pyrophosphate is produced.The high thermal stability of titanium pyrophosphate prevents the further oxidation decomposition of the char residue.As a result, more stable char layer on the surface favors the barrier of heat and oxygen,and the underlying material is proteced effectively.
机译:二氧化钛(TiO2)是油漆和涂料中的一种普通着色剂,我们的工作表明了它与聚磷酸铵(APP)在水性阻燃涂料中的协同作用.TiO2纳米粒子在APP中具有良好的分散性,APP-TiO2纳米化合物具有通过锥形量热仪(CONE),热重分析(TGA),X射线衍射(XRD)和X射线光电子能谱(XPS)研究了阻燃机理。 TGA和XRD数据验证了TiO2纳米颗粒可以与APP的分解产物反应生成焦磷酸钛,焦磷酸钛的高热稳定性防止了焦炭残渣的进一步氧化分解,从而使炭层上的焦炭层更加稳定。表面有利于热和氧气的阻挡,并且有效保护了下面的材料。

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