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星期日, 五月 10, 2009

Magnesium Hydroxide

Capitalizing on our industrial expertise we fruitfully cater to our clients all across the globe with our exclusive range of Magnesium Hydroxide flame retardants that are formulated from best grades of chemicals. These are stringently tested on quality parameters testing for the accurate composition, effectiveness, pH value, purity etc.

Specifications
BR-2000BR-4000
Physical PropertiesMgO% >64.00%64.00%
Apparent Spec.gravity g/ml0.750.34
Hardness2.52.5
Dewatering temp °C340340
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 method9um1.5um


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.

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