A kind of mesoporous aluminosilicate oxides (MAOs) were fabricated from industrial waste, coal fly ash. After loaded with zinc on MAO, the product MAO‐Zn was characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, thermogravimetric analysis, and scanning electron microscopy (SEM). MAO‐Zn was incorporated with intumescent flame retardant (IFR) together and used in polypropylene (PP). Basic characterization including limiting oxygen index (LOI), vertical burning test (UL‐94), and cone calorimeter test (CCT) were finished. The result showed the LOI value of PP was only 17.7 and cannot pass UL‐94 grade; however, 25 wt% IFR in PP help the composite obtained LOI value of 27.6 and passed UL‐94V‐1 grade. Surprisingly, with only 2 wt% MAO‐Zn substitution of IFR, the LOI of PP/IFR composite sharply went up to 37.2 and passed V‐0 grade. CCT results documented that heat, smoke, and fatal gas release were obviously suppressed by IFR/MAO‐Zn combination. By SEM observation and quantitative analysis of TGA results, the contribution of MAO‐Zn was summarized as adsorption of heat/smoke and promotion on charring. It was worth mentioning that the low dose of MAO‐Zn (≤ 3 wt%) did not bring further deterioration on mechanical properties. J. VINYL ADDIT. TECHNOL., 26:135–143, 2020. © 2019 Society of Plastics Engineers

中文翻译：

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掺锌的粉煤灰基介孔硅铝酸盐氧化物的制备及其在聚丙烯中的协同阻燃性

用工业废料，粉煤灰制造了一种介孔的铝硅酸盐氧化物（MAOs）。在MAO上负载锌后，通过傅里叶变换红外光谱，X射线衍射，热重分析和扫描电子显微镜（SEM）对产物MAO-Zn进行表征。MAO-Zn与膨胀型阻燃剂（IFR）一起使用，并用于聚丙烯（PP）。基本表征包括极限氧指数（LOI），垂直燃烧测试（UL-94）和锥形量热仪测试（CCT）。结果表明PP的LOI值仅为17.7，不能通过UL-94级。但是，PP中25 wt％的IFR有助于复合材料的LOI值达到27.6，并通过了UL‐94V‐1等级。出人意料的是，仅用2 wt％的IFR取代了MAO-Zn，PP / IFR复合材料的LOI急剧上升至37.2，并通过了V-0级。CCT结果表明，IFR / MAO-Zn组合明显抑制了热量，烟气和致命气体的释放。通过SEM观察和对TGA结果的定量分析，总结了MAO-Zn的贡献为热/烟的吸附和炭化的促进。值得一提的是，低剂量的MAO-Zn（≤3 wt％）不会使机械性能进一步恶化。J.乙烯基添加物。TECHNOL。，26：135–143，2020.©2019塑料工程师协会 值得一提的是，低剂量的MAO-Zn（≤3 wt％）不会使机械性能进一步恶化。J.乙烯基添加物。TECHNOL。，26：135–143，2020.©2019塑料工程师协会 值得一提的是，低剂量的MAO-Zn（≤3 wt％）不会使机械性能进一步恶化。J.乙烯基添加物。TECHNOL。，26：135–143，2020.©2019塑料工程师协会