| 摘要 |
Disclosed are a flame retardant of red phosphorus micro powder in aqueous suspension and manufacturing method thereof. The manufacturing method comprises the steps of: adding a wetting and dispersing agent and an appropriate amount of water into red phosphorus micro powder and performing a grinding operation; adding water into the wet ground red phosphorus micro powder to perform a dispersing operation; and adding an anti-settling agent into the dispersion of red phosphorus micro powder and dispersing the same continuously until uniform to obtain a flame retardant of red phosphorus micro powder in aqueous suspension, wherein the red phosphorus content is 20-60%, and the viscosity is 10-500 cp, usually 10-100 cp. The aqueous suspension has good flowability and thixotropy, and the flame-retardant effect thereof on a material treated thereby is good and uniform; meanwhile, the suspension has good stability, low odor, and a wide variety of applications in polymers, paints, coatings and fabrics requiring flame retardance. |
