Expandable Graphite
Expandable graphite (acidified graphite), a graphite intercalation compound obtained from natural crystalline flake graphite treated with an acidic oxidizing agent,is also known as graphitic acid, acidified graphite, or graphite oxide.
1.EPS board and coating
Expandable graphite for EPS is mainly used in EPS board and coating, which has the functions of heat preservation, waterproof and fire prevention.2.Fireproof sealing strips
Due to its expandability and high temperature resistance, expandable graphite has become an excellent sealing material and is widely used in fireproof sealing strips.
3.Flame retardant plastic
the expanded carbon layer formed by expandable graphite carbon has excellent heat insulation performance and high-temperature resistance.Expandable graphite is the only one that can be used in harsh conditions and has enough expansion strength.
4.Fireproof bag ,fireproof blocking material
because of the high expansion rate of expandable graphite at high temperatures,it can be used as an effective intumescent flame retardant material to make fire-proof packages and fire-proof plugging material
5. Fire board
expandable graphite is used in the mixture of the fire-proof board,in order to increase the fire-proof performance of the board ,reduce the density of the board and enhance the heat insulation performances.
6.battery material
As a battery material, expandable graphite is converted into electrical energy by the change of free energy of the interlayer reaction of expandable graphite.
7.flame retardant coating
Expandable graphite is trying to be used in flame retardant coating ,which can give coatings excellent thermal expansion.The coatings overcome the shortcomings of the the previous coatings which are easy to produce smoke.
Product Info
Expandable graphite, also known as acidified graphite, is a type of flexible graphite. It is obtained by treating high-quality natural flake graphite with an acidic oxidizing agent. When exposed to high temperatures, expandable graphite takes on a worm-like shape and can expand 100-400 times its original size. It retains the properties of natural graphite, including excellent molding plasticity, flexibility, ductility, and sealability. Widely used as a sealing material, it finds applications in petroleum, chemical, electrical, aerospace, automotive, marine, and instrument industries.
Expandable graphite exhibits good expansibility, is porous, and has a wide temperature resistance range (-200°C to 3000°C) under oxygen insulation. It remains stable even under high temperature, high pressure, or radiation conditions.
Expandable graphite is a promising engineering material used for fire seals, flame retardants, refractory bricks, crucibles, insulation, liners, soundproofing, and shock-absorbing materials. Its exceptional properties, such as lightness, conductivity, heat resistance, acid-alkali corrosion resistance, resilience, lubrication, and chemical stability, have earned it the nickname 'Sealant King' worldwide.
Specification
1. Super low sulfur expandable graphite
Specification Fixed Carbon(%) Ash Content(%) Volatile constituent(%) Expansion Rate(ml/g) Sulfur content(%) PH Value Moisture(%) Particle Size above the sieve(%) DL32 90-99.9 ≤8.0 ≤10 200-400 ≤0.03 3-7 ≤1.0 ≥80 DL50 90-99.9 ≤8.0 ≤10 200-350 ≤0.03 3-7 ≤1.0 ≥80 DL80 90-99.9 ≤8.0 ≤10 150-250 ≤0.03 3-7 ≤1.0 ≥80 DL100 90-99.9 ≤8.0 ≤10 100-200 ≤0.03 3-7 ≤1.0 ≥80 Advantage of this product : sulfur can be reduced to a minimum.
2. Super fine expandable graphite:
Specification Fixed Carbon(%) Ash Content(%) Volatile constituent(%) Expansion Rate(ml/g) Sulfur content(%) PH Value Moisture(%) Particle Size above the sieve(%) CX-100 90-99 ≤8.0 ≤15 30-120 ≤2.2 4-7 ≤1.0 ≥80 CX-200 90-99 ≤8.0 ≤15 15-50 ≤2.2 4-7 ≤1.0 ≥80 CX-325 90-99 ≤8.0 ≤15 10-20 ≤2.2 4-7 ≤1.0 ≥80 Advantage of this product : super fine.
3. Average expandable graphite:
Specification Fixed Carbon(%) Ash Content(%) Volatile constituent(%) Expansion Rate(ml/g) Sulfur content before expansion(%) Sulfur content after expansion(ppm) PH Value Moisture(%) Particle Size above the sieve(%) Kp32 90-99.9 ≤8.0 ≤12 200-400 ≤2.2 ≤1500 3-7 ≤1.0 ≥80 Kp50 90-99.9 ≤8.0 ≤12 200-350 ≤2.2 ≤1500 3-7 ≤1.0 ≥80 Kp80 90-99.9 ≤8.0 ≤12 150-250 ≤2.2 ≤1500 3-7 ≤1.0 ≥80 Kp100 90-99.9 ≤8.0 ≤12 100-200 ≤2.2 ≤1500 3-7 ≤1.0 ≥80 Index can be adjusted according to client requirement.
Shipping Info
1. EPS Board and Coating:
- Expandable graphite is primarily used in EPS (expanded polystyrene) boards and coatings.
- Functions: Provides heat preservation, waterproofing, and fire prevention.2. Fireproof Sealing Strips:
- Due to its expandability and high temperature resistance, expandable graphite serves as an excellent sealing material.
- Widely used in fireproof sealing strips.3. Flame Retardant Plastic:
- The expanded carbon layer formed by expandable graphite offers excellent heat insulation and high-temperature resistance.
- Expandable graphite is uniquely suited for harsh conditions and provides sufficient expansion strength.4. Fireproof Bags and Blocking Material:
- High expansion rate at high temperatures makes expandable graphite effective as an intumescent flame retardant material.
- Used in fireproof bags and plugging material.5. Fire Boards:
- Mixed with fireproof boards to enhance fire resistance, reduce board density, and improve heat insulation.6. Battery Material:
- Convertible into electrical energy through interlayer reactions in expandable graphite.7. Flame Retardant Coatings:
- Expandable graphite is being explored for use in flame retardant coatings.
- These coatings address previous shortcomings related to smoke production.Expandable graphite finds applications in various industries, including fireproof materials. Its properties, such as low sulfur content, high tensile strength, uniform density, and surface smoothness, contribute to its versatility and stability in different contexts.
