To overcome the short inhibition life of currently available inhibitors, a high polymer nanocomposite inhibitor was developed. The spontaneous combustion characteristics of coal gangue from the Yangquan mining area were studied through proximate analysis, scanning electron microscope/energy dispersive spectrometer (SEM/EDS), and thermogravimetric analysis. As a result, the coal gangue was found to be prone to spontaneous combustion. Temperature‐programmed oxidation experiments showed that the average inhibition rates of Ca (OH)₂ or polyacrylamide (PAM) were 30.99% and 30.95%, respectively. During testing, when the temperature of the coal gangue exceeded 160°C, the CO production and oxygen consumption rate of the sample with PAM increased dramatically, proving that the PAM inhibition effect was short‐lived with elevating temperature, whereas the inhibition rate of polyacrylamide/montmorillonite (PAM/MMT) was significantly increased to 47.70%. In addition, the CO production and oxygen consumption rates were significantly reduced in the late oxidation period, proving that the addition of MMT was able to effectively improve the high‐temperature resistance of the PAM. Different concentrations of PAM/MMT were compounded with Ca (OH)₂, further improving the inhibition effect of the treatment. The inhibition effect of the PAM/MMT 3%‐Ca (OH)₂ 20% composite inhibitor was the best in the study, with an inhibition rate of 83.15%.

中文翻译：

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新型防止煤石自燃的理化复合抑制剂的研制与性能研究

为了克服当前可用抑制剂的短抑制寿命，开发了高聚合物纳米复合抑制剂。通过近距离分析，扫描电子显微镜/能谱仪（SEM / EDS）和热重分析，研究了阳泉矿区煤gang石的自燃特性。结果，发现煤石易于自燃。程序升温氧化实验表明，Ca（OH）₂的平均抑制率或聚丙烯酰胺（PAM）分别为30.99％和30.95％。在测试过程中，当煤石的温度超过160°C时，带有PAM的样品的CO产生和耗氧率急剧增加，证明PAM的抑制作用随温度升高而短暂，而聚丙烯酰胺的抑制率/蒙脱石（PAM / MMT）显着提高至47.70％。此外，在氧化后期，CO的产生和氧气的消耗率显着降低，证明添加MMT可以有效提高PAM的耐高温性。将不同浓度的PAM / MMT与Ca（OH）_2混合，进一步提高了该治疗的抑制作用。PAM / MMT 3％Ca（OH）的抑制作用_2个20％的复合抑制剂是研究中最好的，抑制率为83.15％。