PDF(Pubmed)
Abstract：
Novel hybrid flame retardants containing zinc hydroxystannate and carbon nanotubes (ZHS-CNTs) were synthesized using the coprecipitation method, and the structure and morphology of ZHS-CNTs were investigate using an X-ray powder diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and thermogravimetric analyzer (TGA). Then, the ZHS, CNTs and ZHS-CNTs were incorporated into EP, respectively, and the flame-retardant and smoke inhibition performance of the composites were compared and studied. Among the three composites, the EP/ZHS-CNT composites have the highest improvements on the fire resistance and smoke inhibition properties. With only 2.0 wt.% ZHS-CNT hybrids, the pHRR of EP/ZHS-CNT composite materials is reduced by 34.2% compared with EP. Moreover, the release of toxic gases including CO, CO2 and SPR from the composites was also effectively inhibited. The mechanisms of flame retardant and smoke inhibition were investigated and the improved properties were generally ascribed to the synergistic flame-retardant effects between ZHS and CNTs, the catalyzing effect of ZHS and the stable network structure of CNTs.
摘要：
采用共沉淀法合成了含有羟基锡酸锌和碳纳米管(ZHS-CNTs)的新型杂化阻燃剂,用X射线粉末衍射仪(XRD)研究了ZHS-CNTs的结构和形貌,扫描电子显微镜（SEM），透射电子显微镜(TEM)和热重分析仪(TGA)。然后，ZHS,将CNT和ZHS-CNT掺入EP中，分别,并对复合材料的阻燃和抑烟性能进行了对比研究。在这三种复合材料中，EP/ZHS-CNT复合材料在阻燃性和烟雾抑制性能方面具有最高的改进。只有2.0wt。%ZHS-CNT混合物，EP/ZHS-CNT复合材料的pHRR比EP降低了34.2%。此外，包括CO在内的有毒气体的释放，复合材料的CO2和SPR也被有效抑制。研究了阻燃和抑烟的机理，改善的性能通常归因于ZHS和CNTs之间的协同阻燃作用。ZHS的催化作用和碳纳米管的稳定网络结构。
