Exfoliated Vermiculite
Vermiculite
Product Details
Vermiculite is a kind of natural, non-nic silicate mineral, whose raw ore looks like mica. Vermiculite is formed by the hydrothermal alteration or weathering of minerals, usually biotite and ogopite. When heated, it expands like leech. Vermiculite are divided into raw vermiculite and expanded vermiculite by stages, and according to the color, it can be divided into golden vermiculite, silvery white vermiculite, milky white vermiculite.
Exfoliated Vermiculite
Vermiculite, with layer construction and interlaminar water. It begins expend when it is heated over 200℃, becoming the worm-like shape and it can be 15-25times bigger than the original volume, maximum 30 time. when it is rapidly heated to 800℃. This forms the material with low density (100-300kg/m³), exnt insulation property and good hydroscopicity and ion exchange capacity.
Specification:
Golden Exfoliated Vermiculite | Silver Exfoliated Vermiculite |
0.3-1mm | 0.3-1mm |
1-3mm | 1-3mm |
2-4mm | 2-4mm |
4-8mm | 4-8mm |
Application
In construction | 1. Fireproof board 2. Lightweight concrete 3. Loose fill insulation 4. Construction coating 5. Vermiculite plaster6. Bitumen coated vermiculite plate |
In agriculture | 1. Soil improvement2. Fertilizer carrier3. Horticulture4. Hydroponics 5. Animal feed stuffs |
In industry | 1. Gaskets or seals2. Fireproofing3. Insulation in steelworks and foundries4. Packing materials5. Friction linings6. Refractory products7. Processed vermiculite |
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