Qingdao Hensen Graphite Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 3000 ton per month |
| Delivery Time | 30 working days |
| Packaging Details | Small bag into big bag total 20 tons for 20' feet container |
| Carbon Content | 90%MIN |
| Ash | 10%max |
| Moi | 0.5%max |
| PH | 3-9 |
| Expansion Ratio | 200ml/g Min |
| Advantage | Preservative/Electrical And Thermal Conductivity, Etc. |
| Brand Name | Hensen |
| Model Number | HS |
| Place of Origin | Qingdao of China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 3000 ton per month |
| Delivery Time | 30 working days | Packaging Details | Small bag into big bag total 20 tons for 20' feet container |
| Carbon Content | 90%MIN | Ash | 10%max |
| Moi | 0.5%max | PH | 3-9 |
| Expansion Ratio | 200ml/g Min | Advantage | Preservative/Electrical And Thermal Conductivity, Etc. |
| Brand Name | Hensen | Model Number | HS |
| Place of Origin | Qingdao of China | ||
| High Light | Insulation Expandable Graphite Powder ，Fireproof Coatings Expandable Graphite Powder ，90%Min Carbon Thermally Expanded Graphite | ||
Expandable graphite powder is a unique form of graphite that possesses the ability to expand when exposed to high temperatures or fire. It is derived from natural graphite through a specialized chemical treatment process that introduces intercalation compounds, typically acids or oxidizing agents, between the graphite layers. This treatment modifies the structure of the graphite and imparts the expandability characteristic.
The expandable graphite powder is composed of numerous thin flakes or particles, resembling regular graphite powder in appearance. However, its distinctive feature lies in its ability to undergo a significant expansion when subjected to heat. This expansion occurs due to the release of gases trapped within the intercalation compounds.
When expandable graphite powder is exposed to heat above a certain threshold, the intercalation compounds begin to decompose, liberating gases such as carbon dioxide, water vapor, or other volatile compounds. The rapid gas generation within the graphite structure causes the material to expand, forming an insulating and fire-retardant layer known as the intumescent char.
The expansion process results in a voluminous and porous structure, which contributes to the excellent fire-resistant properties of expandable graphite powder. The resulting intumescent char acts as a barrier, shielding the underlying materials from heat, flame, and oxygen, thereby slowing down the spread of fire and reducing the risk of ignition.
Expandable graphite powder finds wide applications in various industries where fire safety and thermal management are crucial. It is commonly used as an additive in flame-retardant materials, such as plastics, foams, coatings, and textiles, to enhance their fire resistance properties. By incorporating expandable graphite powder, these materials can achieve improved self-extinguishing capabilities and reduced heat release rates during a fire event.
Additionally, expandable graphite powder is utilized in the production of graphite foams, which are lightweight and thermally conductive materials. These foams are used in industries such as aerospace, automotive, and electronics, to provide effective thermal management and insulation in heat-sensitive applications.
In summary, expandable graphite powder is a specialized form of graphite that expands when exposed to high temperatures, forming an insulating char layer. Its unique fire-retardant properties make it a valuable additive in various industries, contributing to enhanced safety and thermal performance of materials and products.
Company Details
Business Type:
Manufacturer,Seller
Year Established:
1985
Total Annual:
44850000-74750000
Employee Number:
100~300
Ecer Certification：
Verified Supplier
Since 1985, Hensen Graphite has been proudly serving customers around the globe. Before setting up his own company, Mr. Peizhai Mo, the founder and owner of Hensen Graphite, has been working at Nanshu Graphite Mine, which was the most famous and important state owned graphite company in China. ... Since 1985, Hensen Graphite has been proudly serving customers around the globe. Before setting up his own company, Mr. Peizhai Mo, the founder and owner of Hensen Graphite, has been working at Nanshu Graphite Mine, which was the most famous and important state owned graphite company in China. ...
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