1.Expanded vermiculite color:silver and gold 2.Size:as client's demands 3.Origin:Hebei,China 4.Own factory 5.MOQ:5Tons
Vermiculite is a member of the phyllosilicate group of minerals, resembling mica in appearance.
Vermiculite is basically a hydrated phlogopite mica which has the remarkable ability t expand to many times its original volume when heated at 850 °C.-1100°C.Vermiculite is most widely used in its exfoliated form.
Exfoliated Vermiculite
The exfoliation process is carried out commercially by passing crude vermiculite through a furnace chamber in a controlled manner. The crude vermiculite then expands at right angles to the cleavage planes, producing concertina-shaped particles many times their original volume.Exfoliated vermiculite can be obtained from commercial exfoliators. If large quantities are required, the equipment needed to exfoliate vermiculite can be obtained from furnace manufacturers.
About the expanded vermicultie details:
1.Expanded vermiculite features
Heat-resistant, corrosion-resistant, well-ventilation, water preservation, poisonless, odorless, low hardness, burning-avoidness, lighter,etc
2.Expanded vermiculite size
Expanded golden vermiculite | 0.3-0.65mm,0.65-1mm,1-2mm 2-4mm,1-3mm,0.3-1mm,3-6mm,4-8mm 8mm325meh 200mesh 150mesh 500mesh 600mesh |
Expanded silver vermiculite | 0.3-1mm ,1-2mm,2-4mm,1-3mm,3-5mm,3-6mm,4-8mm325meh 200mesh 150mesh 500mesh 600mesh |
Specifal size ,we can do as per client’s requirements
3.Expanded vermiculite specifications
Item | Specifications | Item | Specification |
Thermal Conductivity | 0.045 - 0.069w/m °C Under ambient conditions | Bulk density | 90-200kgs/m3 |
PH | 7-11 | Compressive resistance | 100-150 Mpa |
Fusion point | 1320°C-1370°C | asbestos | None |
Moisture content: | 0.1%max | Antibioticity | Good |
Moisture hoding capacity | 220-325% by wt 20-50%by vol | Corrosion resistance | Alkali-resitant |
water-absorbable | 420-650liter/m3 | Impurity | 5%max |
Combustibility | Non-combustible | Sintering temperature | 1150-1250 °C |
4.Expanded vermiculite Usage
1>.Construction :lightwight material ,light aggregate concrete ,heat-resisting material,wall material,bora firproofing ,fire mortar,fireproofing tile
2>.Heat preservation and insulation:sound-absorbing material,surken pipe ,greenhouse pipe ,heat preservation material ,in-built material indoor and tunnel ,wall of public and ceiling
3>.Metallurgy :clad material in steel,ironmaking ,foundry,bulk material of vermiculite
4>.Horticulture :lawn of golf,seed preservation agent,soil conditioner ,wetting agent,plant growth substance,feed additive
5>.Fishing industry of ocean :bait
6>.Others :adsorbent ,filter aid,active carrier of chemicals and fertilizer,sewage disposal,oil adsorption of oceanmcigarette filters,regulate density od explosive
5.Price is negotiated as per product's specifications ,quantities,payments terms client require
6.Sample:we suppply samples for free within 1kgs
My cell phone :8613582186358
Silver/Golden expanded vermiculite for industry applications
