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Magnesium Hydrate
magnesium hydrate is generally considered as an excellent fire retardant in the field of rubber-plastic industry for its triple function inflaming retarding, smoke restraining and packing. Its molecular formula is Mg (OH) 2 and the molecular weight is 58.32 . It is a kind of nontoxic, and high decomposition temperature. And it doesnt corrode equipments. So it is the first selected material to be used as organic high-polymer for producing non-halogen ting inflaming retarding.
Magnesium hydrate fire retardants reduce the surface temperature of the flame, in which the synthetic materials are packed, by releasing hydrate water and absorbing a large amount of latent heat. These functions are restraining polymers from composition is also a good fire-retardant material and can help to improve the refractory property of the synthetic materials, while the emitted vapor can be used as a kind of restraining smoke agent.
|
Examine Item |
Examine Result |
Examine Standard |
|
SIO2 |
≤1.5% |
SN/T0829 |
| CaO |
≤1.5% |
SN/T0829 |
|
MgO |
≥64% |
SN/T0829 |
|
Fe2O3 |
≤0.3% |
SN/T0829 |
|
AL2O3 |
≤0.3% |
SN/T0829 |
|
LOI |
≥29% |
GB/T2007 |
