To study the effect of microemulsion on the wettability and physicochemical structure of coal, various experiments (contact angle, Fourier infrared spectroscopy, scanning electron microscope) were conducted to study the mechanism of physicochemical structure on wettability. The results show that the microemulsion exhibited stronger wetting properties than traditional wetting agents such as water and sodium lauryl sulfate solution (SDS). The contact angles of the three-phase microemulsions were relatively small, among which the W/O type had better wettability. The increase in area percentage of benzene ring with one adjacent H, CH structure, OH…N structure had a tendency to inhibit coal wetting while the increase in area percentage of benzene ring with three adjacent H, CH₃ structure, OH…π structure exhibited a tendency to promote coal wetting. Microemulsion could significantly increase the wettable area of coal. The research results have important practical significance for the configuration of mining wetting agents, reducing coal dust pollution, and diminishing coal mine disasters.

为了研究微乳液对煤的润湿性和理化结构的影响，进行了各种实验（接触角，傅立叶红外光谱，扫描电子显微镜），研究了理化结构对煤的润湿性的机理。结果表明，该微乳液比常规润湿剂如水和十二烷基硫酸钠溶液（SDS）表现出更强的润湿性能。三相微乳的接触角较小，其中W / O型润湿性较好。具有相邻的H，CH结构，OH…N结构的苯环的面积百分比的增加具有抑制煤润湿的趋势，而具有相邻的三个H，CH ₃的苯环的面积百分比的增加具有抑制煤润湿的趋势。OH…π结构具有促进煤润湿的趋势。微乳液可以显着增加煤的可湿性面积。该研究结果对矿用润湿剂的配置，减少煤尘污染，减少煤矿灾害具有重要的现实意义。