Comparison of effects of sodium carboxymethylcellulose and superabsorbent polymer on coal dust wettability by surfactants

ABSTRACTThe interactions of sodium carboxymethylcellulose (SCMC) and a superabsorbent polymer (SA) with aqueous solutions of active surfactants such as sodium dodecylbenzenesulfonate (SDBS) and alkyl polyglycoside were investigated in terms of surface tension, sink time, and foam liquid fraction. An SA is a more suitable surfactant than SCMC for wetting coal dust, and SDBS and an SA additive in an SA:SDBS weight ratio of 1:4 is the best coal dust suppressant.