介绍了纳米技术在聚氨酯阻燃中的应用进展以及聚氨酯纳米复合材料的阻燃机理,着重阐述了不同纳米阻隔层对提高聚氨酯热稳定性及阻燃性的作用机理,即在材料表面形成一种致密的阻隔炭层.该炭层具有较强的隔热隔氧的阻燃作用,与一些有机磷系阻燃剂复配使用可以达到协同阻燃的效果,通过这种协同效应可以在不降低阻燃级别的前提下降低传统阻燃剂的添加量.
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