Research on the application of novel surfactants in the prevention and control of coal and gas outburst

The research focuses on preventing coal and gas outburst problems by experimentally exploring the interactions between various coal samples and surfactants. It was found that the composite surfactant F-101 exhibits optimal performance in reducing the surface tension of aqueous solutions, while the anionic surfactant A-1 significantly improves the wettability of the coal sample surface. At a mass fraction of 0.3%, the two surfactants synergistically enhance the hydrophilicity and wettability of the coal samples. Further gas desorption experiments showed that all types of surfactants can effectively reduce gas desorption, with F-101 demonstrating the best performance, with the cumulative gas desorption amounts of anthracite, coking coal, and long-flame coal decreasing by 66.89%, 60.83%, and 65.36%, respectively, after treatment. This study emphasizes that the use of surfactants has the potential to significantly reduce mine gas desorption, providing an effective strategy for the prevention and control of coal and gas outburst.