硅酸钠
扫描电子显微镜
煤尘
材料科学
傅里叶变换红外光谱
环境友好型
煤
环境污染
化学工程
色散(光学)
十二烷基硫酸钠
污染
复合材料
废物管理
环境科学
化学
色谱法
物理
环境保护
光学
生态学
生物
工程类
作者
Jin Hu,Wen Nie,Yansong Zhang,Yanghao Liu,Bao Qiu,Hongkun Wang,Dongmei Huang
摘要
ABSTRACT To mitigate the dust dispersion pollution in the open‐pit coal mines, this study experimentally develops a novel environmentally friendly coal dust suppressant. The experiment uses naturally biodegradable soybean protein isolate (SPI) as the main material and utilizes anion surfactant sodium dodecyl sulfate (SDS) to modify SPI. In the carboxymethylcellulose sodium and sodium silicate and other auxiliary agents, this process produces gives rise to the SDS‐SPI coal dust suppressant. Experimental characterization of the developed dust suppressant reveals that the viscosity of the 5% dust suppressant solution can reach 24.6 mPa s. Correspondingly, the compressive strength reaches 0.48 MPa, and the dust suppression efficiency can reach 93.47% with the presence of force 9 wind. Furthermore, this study uses Fourier‐transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) to analyze the dust suppression mechanism of the developed dust suppressant. It is observed that a layer of compact hardened shell is formed at the surface of the coal powder treated with the newly developed dust suppressant. Also, there exists a strong cementing effect among dust particles, yielding a decent cementing performance. Therefore, the present dust suppressant can effectively suppress dust dispersion in the open‐pit coal mines, allowing a mitigation of the environmental pollution. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47354.
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