作　　者： ; ; ; ; ;

机构地区： 顺德职业技术学院

出　　处： 《塑料》 2014年第3期58-61,共4页

摘　　要： 以多聚磷酸铵(APP)与新型成炭剂(CNCA-DA)复配成膨胀型阻燃剂(IFR),应用于茂金属乙丙弹性体(MEP)的阻燃改性,并采用氧指数测定仪(LOI)、热重分析仪(TGA)和红外光谱仪(FTIR)研究了IFR对MEP的阻燃作用和协同作用机理。结果表明:APP与CNCA-DA复配成的膨胀型阻燃剂(IFR)对MEP具有良好的阻燃性能;当APP与CNCA-DA的质量比为2∶1时,阻燃效果最佳;当IFR的质量分数为30%时,MEP/IFR复合材料的氧指数值达到32.0%;TGA分析结果表明:APP与CNCA-DA复配后,能促使IFR形成更多的残炭,并使材料的热降解温度向高温方向移动。FTIR分析表明:APP与CNCA-DA复配后,残炭中形成了P-O-C、P-O-P的交联结构,并形成更多的聚芳烃结构。 Novel intumescent flame retardant （IFR） containing ammonium polyphosphate （APP） and novel charring agent （CNCA-DA） was used to ethylene-propylene elastomer （MEP） to improve the flame retardant properties, and the synergistic effect between APP and CNCA-DA was investigated by the means of limited oxygen index （LOI） , thermogravinity analysis （TGA） and fourier transform infrared spectroscopy （FTIR）. It was found that the composite had the highest LOI value when the mass ratio of APP to CNCA-DA was 2：1 ,when the content of IFR was 30 % ,the LOI value reached 32.0 %. The TGA results revealed that the more char residue was formed when APP and CNCA-DA was incorporated together, and the degradation took place at higher temperature. The results from FTIR showed that polyaromatic spacies, P-O-C and P-O-P connected structures were formed.

关 键 词： 膨胀阻燃 乙丙弹性体 成炭剂 协同作用 热降解

领　　域： [化学工程]