P-22(DBD)
Light yellow powder,low poison ,no-pollution, Soluble in benzene, ethanol, acetone and other organic solvents, insoluble in water. Toch the skin can cause dermatitis. Best storage stability.
TYPE | P22 | P44 /DBD-3 |
Appearance | White or Pale Yellow Powder | Light Green Pellet Solid |
Melting Range,℃ | 136-143 | 136-143 |
DBD content ≥% | 95 | 40.0±2 |
Loss on Drying %≤ | 0.50 | 0.50 |
Ash %≤ | 0.30 | 0.5 |
Residues(150μm) %≤ | 0.50 | / |
Application:
The peptizer of the natural rubber or styrene-butadiene rubber. Should be used in temperatures above 120 °C , especially for high temperature mixing process and should be added at the beginning of the mixing. Not blooming. The amount of 0.05-0.5% in natural rubber. The amount of 0.5-3.0% in SBR.