Specifications | BR-2000 | BR-4000 | |
Physical Properties | MgO% > | 64.00% | 64.00% |
Apparent Spec.gravity g/ml | 0.75 | 0.34 | |
Hardness | 2.5 | 2.5 | |
Dewatering temp °C | 340 | 340 | |
Thermal Wt. Loss % under 1000 degree | 30.00% | 30.00% | |
Water content % (110°C) < | 0.50% | 0.50% | |
Whiteness%> | 94.00% | 97.00% | |
Particle size D100: < | 45um | 5um | |
Um D 50: sedimentation method | 9um | 1.5um |
Magnesium Hydroxide is Non-Halogenated, High thermal stable & non corrosive smoke suppressant and acid scavenger. Its high thermal stability - up to 340C enables its use where Aluminum trihydrate is not sufficiently stable.
Magnesium Hydroxide provides flame retardance through FIVE mechanisms:
- Magnesium Hydroxide produces more char than ATH resulting in increased effectiveness and less smoke.
- Magnesium Hydroxide dilutes the amount of fuel available to sustain combustion.
- Magnesium Hydroxide during combustion, generates highly reflective magnesium oxide coating which deflects the flame's heat away from the polymer.
- Magnesium Hydroxide contains 31 % bound water which is released beginning at 330" C and blankets the flame to limit oxygen available for combustion.
- Magnesium Hydroxide absorbs 17% more heat from the combustion zone than ATH to reduce the prospect of continued burning.
0 comments:
发表评论