You are here: Home / News / Technology News / What Are Graphite Sheets and How Are They Used

What Are Graphite Sheets and How Are They Used

Views: 0     Author: Site Editor     Publish Time: 2026-07-29      Origin: Site

facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

You will see that graphite sheets help keep electronics cool. Graphite sheets are special because they move heat and electricity well. They do this better than many metals. Look at this chart. It shows how graphite sheets beat copper and aluminum in thermal conductivity.

Bar chart comparing thermal conductivity of copper, aluminum, and various graphite sheets

Graphite sheets are used in smartphones, cars, and medical tools. China makes most of these materials for the world. This makes them important for many industries. Companies like DASEN create new ways to help with thermal management.

Key Takeaways

  • Graphite sheets move heat and electricity very well. They do better than metals like copper and aluminum.

  • These sheets are used in many devices. You can find them in smartphones, cars, and medical tools. They are important for many industries.

  • There are two types of graphite sheets. One is natural and the other is synthetic. Each type has special features and uses.

  • Graphite sheets are flexible and strong. They can fit into small spaces. They can handle high temperatures without breaking.

  • Graphite sheets do not get damaged by chemicals. This makes them good for tough places like factories and power plants.

  • Using graphite sheets helps electronic devices work better. They help keep devices cool and last longer.

  • DASEN makes graphite sheets and is a top company. They are known for high quality and new ways to manage heat.

  • Picking the right graphite sheet is very important. It helps your project work well and match with other materials.

Graphite Sheet Basics

Definition and Structure

Graphite sheets are used in many devices. They move heat fast and stay strong. The sheets are made from carbon atoms. These atoms form a hexagonal pattern. This pattern helps the sheets conduct heat well. Their thermal conductivity is between 300 and 1500 W/m·K. The pattern also makes the sheets bend easily. This helps them fit into small spaces in electronics.

  • The amount of carbon and how well it is arranged affects how the sheets conduct heat and electricity.

  • If there are impurities, the sheets may not work as well. Clean materials are important.

  • Sheets must not crack or peel. This keeps them strong and dependable.

Types of Graphite Sheets

There are two main kinds of graphite sheets. Each kind has its own features and uses. The table below shows how they are different:

Property/Application

Natural Graphite Sheet

Synthetic Graphite Sheet

Composition

Made from exfoliated graphite flake, no binder or resins

Made by using carbonization and graphitization technology

Thermal Conductivity

Conducts heat well, good for electronics

Conducts heat well, spreads heat evenly in two ways

Flexibility and Compressibility

Can bend and squeeze, used in many industries

Thin and fits any surface, even curved ones

Working Temperature Range

Works from -40 to 400℃, does not age or break easily

Handles high heat, good for thin products with small spaces

Applications

Used in circuits, devices with lots of power, smartphones, and PCs

Used for cooling, electronics, and blocking electromagnetic waves

Synthetic Graphite Sheet

Synthetic graphite sheets spread heat evenly. They are thin and fit curved surfaces. They are used in electronics and products that need to block electromagnetic waves.

Natural Graphite Sheet

Natural graphite sheets bend and squeeze easily. They handle high heat and do not get old or break. They are used in circuits, smartphones, and devices with lots of power.

Manufacturing Overview

Making graphite sheets takes several steps. DASEN uses advanced methods and owns special rights. This makes their sheets high quality and new.

  1. Expansion: Graphite is treated with chemicals and heat. This makes it porous. The amount it expands affects how flexible and dense it is.

  2. Rolling and Compression: The expanded graphite is rolled and pressed. This lines up the layers. It helps the sheets conduct heat and electricity better. Pressure is controlled to keep the thickness the same.

  3. Heat Treatment: Impurities are removed and crystals are improved. The heat and time are set to make the sheets conduct electricity better.

  4. Particle Size and Distribution: The size of the particles should be even. Small particles help conduct heat. Big particles make the sheets stronger.

DASEN is a top maker and innovator in graphite sheet technology. You get good quality and advanced methods from them.

Key Properties of Graphite Sheets

Thermal Conductivity

Graphite sheets move heat away from hot spots fast. This is called thermal conductivity. When you use graphite sheets, they help keep devices cool. They spread heat so electronics do not get too hot. DASEN makes graphite sheets with high thermal conductivity. The table below shows how heat moves in different ways:

Direction

Thermal Conductivity (W/(m·K))

In-

1500-2000

Through-

5-10

Heat moves much faster along the surface than through the thickness. This means the in- direction is better for moving heat. The through- direction is slower. High thermal conductivity helps in smartphones and computers. It keeps them safe and working longer. DASEN’s graphite sheets are good for tight spaces. They help your devices last longer and work better. Many industries use these sheets because they move heat well.

Electrical Conductivity

Graphite sheets also let electricity flow easily. You use them when you need good electrical conductivity. They work better than many metals. The table below shows how well they conduct electricity:

Direction

Conductivity Range (Wm-1K-1)

Conductivity Range (Scm-1)

Through-

2 to 6

3 to 25

In-

100 to 350

500 to 1700

Electricity moves faster along the surface than through the thickness. This helps when you need strong current flow in electronics. Graphite sheets are used for EMI shielding and battery packs. DASEN’s products give you both high electrical and thermal conductivity. This means your devices work better and stay safe.

Flexibility and Durability

Graphite sheets can bend and last a long time. You use them because they fit many shapes and surfaces. They are strong and do not break easily. Here are some ways graphite sheets show flexibility and durability:

  • Graphite sheets are used in gaskets. They bend and squeeze to make tight seals in hot equipment.

  • They act as heat shields. They protect parts from getting too hot.

  • They are used in chemical processing. They last long and resist damage from harsh chemicals.

  • In power plants, they stop leaks and help things run better.

  • Graphite sheets can handle heat up to 850°F (454°C) for a long time. They can take even higher heat for short times.

  • They bend to fit odd shapes and make good seals.

  • They resist acids and solvents very well.

  • They seal tightly even under high pressure and heat.

You count on graphite sheets for strength and long life. DASEN’s products help solve hard problems in tough places. You get results you can trust in many uses.

Chemical Resistance

Sometimes, factories use strong chemicals. Graphite sheets can handle these chemicals well. This means you can use them where acids or solvents are found. Other materials might break down, but graphite sheets stay strong.

  • Graphite sheets do not get damaged by most chemicals. You can use them where metals or plastics would fail.

  • These sheets work in places with any pH, from 0 to 14. They do well with strong acids and bases.

  • Flexible graphite does not react with acids or solvents. It lasts a long time in tough spots.

  • Low gas permeability stops leaks. Your equipment stays safe and works well.

DASEN’s graphite sheets resist chemicals better than others. You see them used in chemical plants, power stations, and labs. They last long and are used for gaskets, seals, and heat shields. This protects your machines and saves money on repairs. DASEN makes sure their products are high quality. You can trust their graphite sheets for hard jobs.

Tip: Pick graphite sheets if you need something that can handle strong chemicals and tough places. DASEN’s products help you fix hard problems in factories.

Applications of Graphite Sheets

Electronics and Devices

Graphite sheets are important in electronics. You find them in phones, tablets, laptops, and LED lights. These devices need to stay cool and work well. Graphite sheets help move heat away from parts that can get hot. This keeps your devices safe and cool.

Application

Benefits

Smartphones and Tablets

Moves heat fast, light, bends easily, blocks EMI, resists chemicals.

Laptops and Computers

Moves heat well, stops hot spots, easy to use on parts.

LED Lighting

Handles heat well, helps LEDs last longer and work better.

Battery Packs

Gets rid of heat, keeps batteries at good temperature, works better.

Wearables

Thin, light, bends easily, moves heat really well.

Heat Spreaders in Smartphones

You use your phone every day. It gets warm when you play games or watch videos. Graphite sheets spread heat across the phone’s surface. This stops hot spots and keeps the battery safe. Your phone lasts longer and works better.

Manufacturers check graphite sheets for steady heat flow and thickness. They test how well the sheet spreads heat sideways and up and down. In- thermal conductivity is between 600 and 1900 W/m·K. Through- values are between 3 and 20 W/m·K. The ratio is about 500:1. This shows the sheet spreads heat sideways much better.

You want several things in a thermal product for phones:

  • Good thermal conductivity

  • Low resistance to heat flow

  • Light weight

  • Bends easily

  • Stays strong over time

  • Easy to make in large amounts

DASEN’s graphite sheets meet these needs. They have high thermal conductivity and bend to fit thin devices. DASEN has patents for new thermal products. Their solutions keep your phone cool and working well.

EMI Shielding

Electronics need to be safe from electromagnetic interference (EMI). Graphite sheets block EMI and keep signals clear. You find them in phones, tablets, and computers. They protect important parts and help devices work better. DASEN’s products spread heat and block EMI. Your devices stay safe and work well.

Automotive Uses

Cars and trucks use graphite sheets to control heat. You see them in electric cars, battery packs, and engine parts. These sheets help keep systems safe from heat.

Battery Thermal Management

Electric cars need good heat control. Graphite sheets help batteries stay cool when charging fast or working hard. They move heat evenly. This keeps batteries at the right temperature and stops stress. You get better performance and longer battery life.

  • Graphite sheets help get rid of heat during fast charging.

  • They spread heat well, keeping temperatures steady.

  • This stops overheating and helps batteries last longer.

DASEN’s products help electric cars run safely. Their graphite sheets keep batteries working well.

Gaskets and Seals

Car gaskets and seals must handle heat and chemicals. Graphite sheets stay strong and resist acids, alkalis, and solvents. They work well under tough conditions and fit uneven surfaces.

Advantage

Description

Thermal Stability

Graphite can take heat up to 2500–3000°C without breaking, which is more than most seals need.

Chemical Resistance

Graphite resists acids, alkalis, solvents, and hydrocarbons, so it works in harsh places.

Durability

Expanded graphite stays strong and keeps its shape under tough conditions.

Conformability

Graphite bends to fit uneven surfaces, making tight seals even if surfaces are not perfect.

  • Graphite gaskets do not change shape much over time.

  • They stay strong in heavy-duty places.

  • Graphite’s slippery surface fills gaps and makes seals better.

DASEN’s products include gaskets and seals for powerful machines. You get parts that last and work well.

Aerospace and Medical Equipment

Planes and medical devices need materials that are light and strong. Graphite sheets give these benefits.

Lightweight Thermal Solutions

Airs and s need light and tough materials. Graphite sheets are perfect for this. You find them in avionics and s. Their special structure keeps them light and strong. This helps save fuel and improve performance.

  • Graphite sheets are light, great for avionics and s.

  • Their structure makes them strong and helps them work well.

  • Flexible graphite heat spreaders help important electronics and sensors.

DASEN’s products help space equipment work smoothly. You get advanced solutions for hard jobs.

Medical Device Cooling

Medical devices must stay cool and safe. Graphite sheets help manage heat in imaging machines, therapy systems, and monitors. They meet strict safety rules like ISO 13485 and FDA standards.

  • Imaging machines use graphite sheets to get rid of heat and make images better.

  • Therapy machines use graphite sheets to stay stable during treatments.

  • Monitors use graphite sheets to keep important parts cool.

  1. ISO 13485 helps track and check quality in medical device making.

  2. FDA rules make sure materials are safe and meet standards.

DASEN’s products follow these rules. You get safe and reliable cooling for medical devices.

Tip: Pick DASEN’s graphite sheet solutions for good heat control in electronics, cars, s, and medical devices. Their patented products give you strong performance and reliability.

Industrial Equipment

Industrial equipment works in hard places. These machines face heat, chemicals, and pressure. Graphite sheets help solve these tough problems. You see them in factories and power plants. They are also used in chemical processing.

High-Temperature Gaskets

Gaskets seal joints and stop leaks. Machines get hot and face strong chemicals. Graphite sheets work well in these gaskets. They stay strong in heat and do not break down in chemicals.

  • Gaskets with graphite sheets resist acids and alkalis.

  • They keep their shape and strength when it gets hot.

  • You can use them in pumps, valves, and pipes with hot fluids.

Graphite sheets are flexible. They fit into small spaces and on uneven surfaces. This makes them great for sealing equipment in hard jobs.

Tip: Pick graphite gaskets for strong seals in tough places. They help machines run safely and need less fixing.

Conductive Coatings

You want to keep equipment safe from EMI and static. Conductive coatings with graphite sheets protect important parts. These coatings have many good points:

  • They resist chemicals and stay strong in harsh places.

  • They work well even when equipment gets hot.

  • They have high in- electrical conductivity, from 10⁴ to 10⁵ S/m.

  • Their low surface resistivity, from 10⁻⁴ to 10⁻⊃3; Ω·cm, blocks bad signals.

You use these coatings for EMI shielding and grounding. They also help collect current in electrochemical devices. These coatings keep equipment working well and safe from harm.

Note: DASEN gives you advanced products for industry. Their graphite sheets work well in gaskets and coatings. You get strong products that help your equipment last longer.

Advantages of Graphite Sheets

Performance Benefits

Graphite sheets work really well. They are very thin and light. You can put them in small spaces. They help make your devices lighter. Heat moves fast across the sheet. This stops hot spots and keeps electronics safe. You do not need to make your device taller for cooling.

DASEN uses ISO9001 rules. Their products are high quality and reliable. Graphite sheets last a long time. They do not need much care.

Here is a table that shows how graphite sheets compare to other materials:

Feature

Graphite Sheets

Other Materials

Thermal Conductivity

Over 1,500 W/m·K

Copper ~400 W/m·K

Weight

Significantly lighter

Heavier

Temperature Resistance

-40℃ to 120℃

Varies

Aging Resistance

Excellent

Varies

Maintenance Needs

Maintenance-free

Needs regular upkeep

Performance Stability

Excellent long-term

Varies

Graphite sheets move heat well and stay strong. They do not get old fast. They work in many temperatures. You do not need to fix them often.

Cost Efficiency

Graphite sheets cost more than aluminum. Good synthetic sheets can be three to five times pricier. But they move heat better. You can use less material and make your design smaller. This saves space and makes your product lighter. When you look at everything, the good performance can balance the higher price. You also spend less on repairs because graphite sheets last longer.

Tip: You can save money over time by picking DASEN’s graphite sheets for cooling.

Environmental Impact

You should think about the environment when using graphite sheets. Making them can send tiny particles into the air. These particles can hurt breathing and cause acid rain. Waste from graphite ore can harm nature and destroy animal homes. Land can get damaged and lose good soil for farming.

  • Air pollution from graphite ore waste can hurt people.

  • Nature gets harmed and animals lose their homes.

  • Bad land hurts farming and soil.

DASEN works to make production better and lower harm to nature. You get products made with care for the environment.

Note: You help nature by choosing products from companies that follow strict rules for quality and the environment.

Considerations for Using Graphite Sheets

Material Compatibility

When you choose graphite sheets for your project, you need to think about how well they work with other materials. Not every graphite sheet fits every job. You want to make sure the sheet matches your needs.

  • Check the thermal conductivity rating. Higher numbers mean the sheet moves heat better. This helps keep your devices cool.

  • Look at the mechanical strength. Stronger sheets last longer, especially in tough places like cars or factories.

  • Make sure the graphite sheet works well with other materials in your device. If the materials do not match, you might see problems with performance.

Tip: Always match the graphite sheet to the job. This helps your equipment work better and last longer.

Handling and Installation

You need to handle graphite sheets with care. They can be thin and flexible, but they also need the right treatment to work their best.

  • Use high-purity graphite for places with high heat. Pure sheets handle extreme temperatures better.

  • Cut the sheets carefully. Dense sheets need precise cutting. If you cut them wrong, you might get leaks or weak spots.

  • Pick the right installation method for each type of sheet. Some sheets need special tools or steps to fit well.

  • Ask experts for advice if you are not sure. Professionals know the best ways to install graphite sheets and can help you avoid mistakes.

If you follow these steps, your graphite sheets will work well and last longer. Good handling and installation keep your devices safe and efficient.

Cost Factors

The price of graphite sheets can change for many reasons. You should know what affects the cost before you buy.

  • Supply and demand play a big role. If more people want graphite sheets, the price can go up.

  • Environmental rules can make production more expensive. Companies may need to spend more to follow these rules.

  • The way the sheets are made affects how well they work. Better manufacturing can mean higher costs, but also better performance.

  • Purity matters. Sheets with 99% purity can work up to 20% better than lower-purity sheets. These high-purity sheets usually cost more.

  • Thickness is important. Thicker sheets last longer and can handle more pressure. Sheets over 1 mm thick can take up to 5000 PSI, but they may cost more.

Note: When you pick graphite sheets, think about both the price and the value. High-quality sheets from trusted brands like DASEN give you better results and can save money over time.

Emerging Applications

Graphite sheets are being used in new ways as technology changes. Many industries want better ways to control heat. You can find graphite sheets in more places now. Here are some cool new uses:

  • Battery modules use graphite sheets to spread heat. This keeps each cell at a safe temperature.

  • Battery packs need good thermal management. Graphite sheets help stop batteries from overheating during fast charging.

  • Battery cells use thin graphite sheets. These sheets help high-energy batteries stay cool and work well.

Electric vehicles and energy storage systems depend on these new uses. As more people buy electric cars and smart devices, the need for advanced thermal solutions will grow. DASEN creates new products for these fast-changing markets. You will see even more uses for graphite sheets in the future.

Sustainability and Innovation

You care about the t. Companies want to make products that help the environment. Graphite sheets are important in lithium-ion batteries. These batteries power electric vehicles. Electric vehicles help lower greenhouse gas emissions. Graphite sheets are also used in renewable energy storage. They help balance energy supply and demand. This makes green energy more reliable.

DASEN works with mining partners who follow strict environmental rules. The company uses eco-friendly ways to make its products. You get high-quality graphite sheets that support a cleaner world. DASEN wants to lead the industry with new ideas and responsible actions. You can trust DASEN to keep finding better ways to help people and the t.

Tip: If you pick products from leaders like DASEN, you support both new ideas and a healthier t.

You find graphite sheets in lots of industries. They help fix hard problems. Graphite sheet moves heat fast, up to 2000 Wm−1K−1 in the layer . It lets electricity flow easily. This makes electronics work better. You can change graphite sheets for batteries and solar cells. They also fit other devices.

DASEN is a leader in thermal management solutions. You get new ideas and good quality from them. You can check out DASEN’s advanced graphite sheets for your next project.

FAQ

What is a graphite sheet used for?

You use graphite sheets to move heat away from hot parts in electronics, cars, and machines. They help keep devices cool and safe. You also find them in gaskets and as shields against electromagnetic waves.

How do you install a graphite sheet?

You cut the sheet to the right size. You place it between parts that need cooling or sealing. Make sure the surface is clean. Press the sheet gently to fit the shape. Ask an expert if you need help.

Can you bend or fold graphite sheets?

Yes, you can bend or fold most graphite sheets. They stay strong and flexible. This helps you fit them into small or curved spaces in your device.

Are graphite sheets safe to use?

Graphite sheets are safe when you handle them properly. Wear gloves if you cut or shape them. They do not release harmful chemicals during normal use.

How do graphite sheets compare to metal heat spreaders?

Graphite sheets weigh less than metals like copper or aluminum. They move heat faster in one direction. You can use thinner sheets and save space in your device.

What industries use DASEN graphite sheets?

You find DASEN graphite sheets in electronics, cars, medical devices, and factories. Many companies use them for cooling, sealing, and protecting equipment.

How long do graphite sheets last?

Graphite sheets last a long time. They resist heat, chemicals, and pressure. You do not need to replace them often if you install them correctly.

Where can you buy DASEN graphite sheets?

You can visit DASEN’s official website to learn more or contact their team for product details and support.

GET IN TOUCH

  No.888, Guangming Road, High-tech Zone, Xinyu, Jiangxi, China
  +86-512-6638 9461
  +86-138 6217 7522

PRODUCT LINKS

QUICK LINKS

Copyright © 2023 Jiangxi Dasen Technology Co., Ltd.