| 摘要 |
The invention provides a dust suppressant composition in powdered form. The dust suppressant comprises a polymer binder and a surfactant. The polymer binder is a redispersible polymer powder, and the surfactant, in its pure form, is a solid at 25'C. %A 0 S" 04 p~vdar 1,5:x % N. We .yk' Figure la 11bsond Wit Pc,4 ~ *~4 'i~ )4N/ A a Figure lb AH25(10936041 3):RTK |
