|
KISUMA 5 (Magnesium hydroxide)
 |
KISUMA 5 is an inorganic flame retardant
which does not generate poisonous nor corrosive gases, and reduces
the amount of smoke generated during combution. |
Characteristics
| 1. |
Doesn't corrode molding machines and mold dies. |
| 2. |
Can be filled to high concentrations in EVA, EEA, VLDPE, PP, EDPM,
etc. |
| 3. |
Improves arc and tracking resistance. |
| 4. |
Improves polypropylene's M.F.I.,flexural modulus and impact strength. |
| 5. |
Flame retardancy is better than Al(OH)3.(For example
;EVA,EEA,EPDM) |
| 6. |
Anti-thermal degradation, and electrical properties(volume resistivity,
dielectric constant, dielectric loss tangent) are better than compounds
filled with Al(OH)3. |
| 7. |
Flame retardancy increases synergystically when it is used together
with red phosphorus or carbon black. |
Grade and Quality
| Grade |
5A |
5B |
5E |
5J |
| Cl (wt%) |
0.05 |
0.05 |
0.05 |
0.05 |
| CaO (wt%) |
0.05 |
0.05 |
0.05 |
0.05 |
Dry loss (wt%)
(120oC,1hr.) |
0.06 |
0.06 |
0.06 |
0.06 |
Specific (m2/g)
surface area(B.E.T.) |
4-7 |
4-7 |
4-7 |
4-7 |
Average secondary
particle size (10-6m) |
0.7-1.1 |
0.7-1.1 |
0.7-1.1 |
0.7-1.1 |
| Mohs hardness |
2.5 |
2.5 |
2.5 |
2.5 |
| Specific gravity |
2.36 |
2.36 |
2.36 |
2.36 |
| Refractive index |
1.56-1.58 |
1.56-1.58 |
1.56-1.58 |
1.56-1.58 |
Temp. of commencing
dehydration (oC) |
340 |
340 |
340 |
340 |
Amount of heat
absorbed (J/g) |
1300 |
1300 |
1300 |
1300 |
| Properties |
Water- &
acid-
resistivity
are good. |
Low temp.
flexibility
& mechanical
properties
are excellent |
Compatibility
with
polyamide
is good. |
Water- &
acid-
resistivity
are excellent |
| Recommended applicatin |
Polyolefin |
Polyolefin |
Nylon |
Polyolefin |
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