Your Professional Graphite Paper Supplier

 

Qingdao Jiuzhengyuan Graphite Technology Co., Ltd. was established in 2013 and located at No. 58 Jing'er Road, Pingdu Economic Development Zone, Qingdao, Shandong Province. It is a comprehensive enterprise integrating research and development, production, and processing, with advanced mechanical production and processing equipment.

 

Our product line includes conductive graphite sheets, conductive graphite films, flexible graphite papers, graphite bipolar plate pre-pressing plates, high-purity graphite, expandable graphite, flake graphite, graphite tapes, and graphite gaskets, among others.

 

 
  • Thermal Graphite Paper Ultra Thin
    Ultra - thin Graphite Paper features high Thermal Conductivity, conducts heat uniformly and quickly, aiding devices in efficient heat dissipation to maintain stability.. MOQ:2000m². Material:natural
  • High-purity Graphite Roll
    High-purity graphite roll with ≥99% carbon content offers high-temperature resistance, chemical inertness, and excellent thermal/electrical conductivity. Ideal for industrial sealing, electronic heat
  • Flame-Retardant Graphite Film
    Product Brief of Flame-Retardant Graphite Film Flame-Retardant Graphite Film is a high-performance functional material. It combines excellent flame retardancy and high thermal conductivity, being
  • Pure Expanded Flexible Graphite Sheet
    Pure Expanded Flexible Graphite Sheet: Exhibits exceptional heat and corrosion resistance, inherently possesses lubricating properties and high resilience benefits, and effectively caters to sealing
  • High-purity Graphite Sheet
    High-purity graphite sheet, with ≥99% carbon content, boasts chemical inertness, 300℃ heat resistance and tight sealing. Ideal for chemical/energy sealing/anti-corrosion, ensuring stable equipment
  • High-Purity Graphite Bipolar Plate
    High-purity graphite bipolar plate: core component for fuel cells and flow batteries, with good conductivity, acid resistance and long service life.. MOQ:100pc. Material: natural graphite
  • Reinforced Graphite Roll
    Reinforced Graphite Roll features high thermal conductivity, self-lubrication and excellent sealing performance. Custom sizes are available, widely used for flange and valve sealing in
  • Flexible Graphite Roll
    Flexible Graphite Roll is mainly used for making various gaskets and packing.. It is widely used in key industries and offers excellent sealing and self-lubricating properties.. MOQ: 2000 ㎡..
  • Expanded Graphite Roll
    Expanded graphite roll is a flexible sheet made from natural flake graphite via expansion and calendaring. Binder-free,it features excellent high temperature resistance, corrosion resistance, sealing
  • Rolled Graphite
    Rolled graphite is made of high-carbon flake graphite through expansion and rolling. It features high purity, excellent thermal and electrical conductivity, flexibility, high and low temperature
  • Multi-Layer Graphite Film
    Multilayer Graphite Film is a high-performance flexible thermal management material featuring exceptional thermal conductivity, superior EMI shielding performance and excellent chemical stability..
  • Composite Graphite Film
    Composite Graphite Film: High‑thermal‑conductivity flexible film with excellent heat dissipation, EMI shielding, and chemical stability. Ideal for electronics, LED, and aerospace thermal management..
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Why Choose us
 

Advanced Production Equipment
Our facility is equipped with an ultra-thin graphite paper production line, sealed graphite paper production line equipment, spherical graphite production line equipment, high-purity graphite production equipment, expandable graphite production line equipment, graphite drying equipment, high-temperature graphene expansion furnaces, high-density graphite block manufacturing equipment, and more.

 

Customer-focused
We have established a 12-hour customer response mechanism aimed at ensuring timely resolution of customer issues and enhancing overall customer satisfaction.

 

Excellent Team
Our company has assembled an expert team with many years of experience in research, development, and production. This team has contributed to the comprehensive enhancement of both production equipment and product performance.

 

Parameter

 

Parameter

Specification

Carbon Content

≥99% (up to 99.95% for high-end models)

Operating Temperature

-200℃ to 800℃ (≤1000℃ in inert environment)

Thickness

0.1-5mm (tolerance: ±0.05mm)

Width

500-2000mm

Maximum Length

50m (longer rolls customizable)

Density

1.8-2.1g/cm³

Thermal Conductivity

150-250W/(m·K) (in-plane, room temperature)

In-plane Resistivity

≤0.002Ω·cm

Compressibility

20-30% (under 30MPa load)

Creep Rate

≤2% (under 30MPa pressure for 24 hours)

Corrosion Resistance

30-day immersion in 20% sulfuric acid/sodium hydroxide solution: mass loss ≤0.5%

★Products support customization 

 

Self-Adhesive Graphite Tape

 

Benefits of Graphite Paper

Excellent high temperature resistance
It can work stably at temperatures up to 2000°C or even higher. This makes it widely used in high temperature industrial furnaces, metallurgy and other fields.

 

Low thermal expansion coefficient
In the process of drastic temperature changes, can maintain the relative stability of the size. Effectively avoid structural deformation or damage caused by thermal expansion and cold contraction.

 

Strong chemical stability
Almost no chemical reaction with most acid and alkali and other corrosive substances, it is an ideal corrosion resistant material.

 

Good electrical conductivity
It can conduct current efficiently, and can be used as electrodes and conductive parts in electrical equipment and electronics industry.

 

Good self-lubrication and low friction coefficient
It can reduce friction and wear in some oil-free mechanical moving parts and extend the service life of the equipment.

 

Application of Graphite Paper

 
 

In the electronic semiconductor industry
As the heating plate, heat insulation plate and electrode material in semiconductor manufacturing equipment. Its high-precision dimensional stability and excellent thermal and electrical conductivity can meet the strict requirements of temperature control and electrical performance in the semiconductor chip manufacturing process. This ensures the high quality and consistency of chip production.

 
 

In the photovoltaic industry
You can use it to manufacture heating bodies and thermal insulation parts of polysilicon ingot furnaces. This can improve the production efficiency and quality of polysilicon with its high temperature resistance and thermal stability.

 
 

In the metallurgical industry
You can use it as the lining and electrode of metal melting furnace, which can withstand high temperature melting environment. And it has good corrosion resistance to metal melt to ensure the smooth smelting process and the purity of metal products.

 
 

In the field of chemical industry
As the lining material of the reactor and the heat exchange element of the heat exchanger. With its corrosion resistance and good thermal conductivity, it can effectively improve the efficiency of the chemical reaction and the effect of heat exchange. While extending the service life of the equipment;

 
 

In the aerospace field
You can use it to manufacture brake parts of aircraft and thermal barrier parts of engines, etc.. And its characteristics of high temperature resistance, self-lubrication and light weight are used to meet the high performance requirements of aerospace equipment under extreme conditions. It can ensure flight safety and reliability of equipment.

 

 

 

Graphite Paper Manufacturing Process

Graphite sheets are produced from high-quality natural or synthetic graphite. The manufacturing process involves high-temperature treatments and mechanical processing to form thin sheets with desired properties. The steps include mining or synthesizing graphite, purifying it, and then converting it into sheets using techniques such as rolling or extrusion. The sheets' thickness and density are controlled to match specific application requirements, making them versatile for various industrial uses.

Flame-Retardant Graphite Film

 

Additional Information

 

Shipping

We offer various shipping methods, including sea freight, air freight, and express delivery, depending on the order size and destination.

Terms Of Payment

We usually accept T/T, L/C, Paypal, Credit card, etc. If you prefer other payments terms, please feel free to discuss with us.

 

FAQ

 

Q: Is graphite sheet flexible?

A: This graphite sheet has flexibility and high recovery from compressive stress, which previously unobtainable with existing graphite products.

Q: What is the highest purity of graphite?

A: Ultra-high purity graphite refers to graphite with a carbon content of over 99.99%, which is characterized by good self-lubricating properties, good conductivity, corrosion and high-temperature resistance, and excellent chemical stability.

Q: What holds graphite sheets together?

A: Weak bonding forces called van der Waals forces hold the sheets together. Because these forces are weak, the sheets can easily slide past each other. The sliding of these sheets gives graphite its softness for writing and its lubricating properties.

As one of the most professional graphite paper manufacturers in China, we're featured by cheap products and good service. Please rest assured to buy customized graphite paper at competitive price from our factory. Contact us for free sample.

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