Expandable Graphite Powder Expanded Graphite 200-300times For Refractory Materials
Price:
USD$2200/TON
MOQ:
20 GP container
Delivery Time:
30 working days
Brand:
Hensen
Product Description
Expandable Graphite Powder Expanded Graphite 200-300times For Refractory Materials
Product
Expandable graphite is a synthesized intercalation compound of graphite that expands or exfoliates when heated. This material is manufactured by treating flake graphite with various intercalation reagents that migrate between the graphene layers in a graphite crystal and remain as stable species.
If exposed to a rapid increase in temperature, these intercalation compounds decompose into gaseous products, which results in high inter-graphene layer pressure. This pressure develops enough force to push apart graphite basal planes in the “c” axis direction. The result is an increase in the volume of the graphite of up to 300 times, a lowering of bulk density, and approximately a 10-fold increase in surface area.
If exposed to a rapid increase in temperature, these intercalation compounds decompose into gaseous products, which results in high inter-graphene layer pressure. This pressure develops enough force to push apart graphite basal planes in the “c” axis direction. The result is an increase in the volume of the graphite of up to 300 times, a lowering of bulk density, and approximately a 10-fold increase in surface area.
| Grade Name | Mesh | Expansion Ratio (cc/g) | Purity (%) |
Moisture (%) |
PH | Sulfur (ppm) |
Onset Temp (°C) |
Application |
| HS555 | +50 | 250:1 | 95-97 | <1 | 6-9 | * | 160-180 | PU foam, Bituman. |
| HS855 | +50 | 250:1 | 98-99 | <1 | 6-9 | * | 160-180 | PU foam, Bituman. |
| HS955 | +50 | 250:1 | 99-99.5 | <1 | 6-9 | * | 160-180 | PU foam, Bituman, for application require least instruments damage. |
| HS085 | +80 | 250:1 | 90-95 | <1 | 6-9 | * | 160-180 | PU foam, EPS foam, XPS foam, sealing strip. |
| HS585 | +80 | 250:1 | 95-97 | <1 | 6-9 | * | 160-180 | PU foam, EPS foam, XPS foam, sealing strip. |
| HS055 | +50 | 250:1 | 90-95 | <1 | 6-9 | * | 160-180 | PU foam, EPS foam, XPS foam, sealing strip. |
| HS988 | +80 | 180:1 | 99-99.5 | <1 | 6-9 | <1500 | * | Graphite foil, roll, gaskets. |
Application
- Graphene precursor.
- Inorganic source of carbon.
- Filler.
- Thermal additive.
- Fire retardant additive.
- Casting powders.
- Plastic additive.
- Rubber additive.
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Company
Qingdao Hensen Graphite Co., Ltd.
Location
No.69 Binhai Road, Naihai, Wendeng, Weihai
Contact Person
Hera Huang