Study on the influence of temperature on wettability of surfactant solution
In order to combine the dust prevention and control in coal mine mining with the actual environment,the influence of temperature on the wettability of surfactant solution was studied by experimental method,and the reasons for the change of wettability of surfactant were explained from the perspective of rheology and adhesion.Through the spray simulation dust reduction experiment,the optimum temperature range and dust removal efficiency of surfactant were obtained.The results show that when the temperature range is 14～32℃,the wetting effect of solution at higher temperature is better.With the increase of temperature,the fluidity and adhesion of surfactant are enhanced,and the diffusion,adsorption and wetting effects on coal surface are enhanced.The dust reduction efficiency of each surfactant(AOS,FMES,JFC,APG,AEO)increased by 17.81%,20.23%,17.87%,16.22%and 18.43%respectively from 14 to 32℃.When the temperature range was 18 to 26℃,the dust reduction efficiency of surfactants increased obviously.
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