A method for dust-preventive treatment of a dusting material using an aqueous dispersion composition of a polytetrafluoroethylene PTFE

摘要

Disclosed is a method of dust suppression disposal for dust generating material, and relevant dust suppression disposal matter from dust generating material, in which the possibility of environmental problems while exhibiting a high dust suppression efficacy equivalent to those of conventional methods can be lowered by the use of a dust suppression disposal agent composition comprised of a water-base dispersion of PTFE ensuring a low possibility of environmental problems. Particularly disclosed is a method of dust-preventive treatment for a dusting material wherein the dust derived from dusting material is prevented by mixing a dust preventing treatment composition comprising an aqueous dispersion of polytetrafluoroethylene containing 50 ppm or less of a fluorine-containing emulsifier with the dusting material and then by forming fibrils of polytetrafluoroethylene under conducting a compression/shear force to the mixture above at a temperature of about 20 Deg. C to 200 Deg. C, and the dust-preventive treated material obtained by treating the dusting material using the above method.