Vermiculite, with layer construction and inter laminar water
.It begins expand when it is heated over 200¡æ, become the
worm-like shape and it can be reached the maximum volume(15-25times
bigger) when it is heated rapidly to 800¡æ. This forms the
material with low density (100-130 kg/m3), excellent insulation
properties and good absorption and exchange capacity.
Applications:
friction materials, filtration materials, insulation materials,
painting sheets, oil-paintings, rubbers, smelting, construction,
chemicals etc.
| Chemical
composition % |
| SiO2 |
Al2O3 |
Fe2O3 |
Mg2O |
| 38.41 |
14.57 |
23.42 |
11.15 |
| Main
technical items |
| Density
g/cm3 |
Temperature |
Heat
exchange rate /W.(M.K)-1 |
| 30.1 |
1000¡æ |
0.17-0.21
|
| Spec |
Golden-yellow,
Silver-whit |
| Raw
vermiculite powder |
100
mesh , 200 mesh |
|
|
