| abstract |
The invention discloses a kind of PP environment-friendlyflame flame retardants and preparation method thereof, fire retardant of the present invention is prepared by Tripolycyanamide hydrobromide, aluminum sulfate, sodium hypophosphite, synergist and montmorillonite composite.First, synergist and montmorillonite composite is made in montmorillonite, isopropyl benzene-like compounds, peroxide in a kettle.Water and Tripolycyanamide hydrobromide, aluminum sulfate octadecahydrate, a waterside sodium phosphate are sequentially added in another reaction kettle, synergist and montmorillonite composite is added in gained system after reaction, after stirring, after sedimentation removes supernatant, are drying to obtain.Product of the present invention has many advantages, such as environmental protection, heat resistance height, good flame retardation effect, anti-migration.Highly effective flame-retardant can be realized in homopolymerization PP, copolymerization PP and additive amount less in blend PP. |