KGC SCIENTIFIC High Thermal Conductivity Graphite Film

Size: px

Start display at page:

Download "KGC SCIENTIFIC High Thermal Conductivity Graphite Film"

Elvin Gallagher
6 years ago
Views:

1 KGC SCIENTIFIC High Thermal Conductivity Graphite Film

2 What is High Thermal conductivity Graphite Film? High Thermal Conductivity Graphite Film is a new type of heat sink material which has been developed in recent years with the excellent thermal conductivity of graphite. The product is a high thermal conductivity sheet material which is formed by the heat treatment process of the polymer film based on carbon material that under special sintered condition.

Axial direction thermal conductivity: 20-30W/(m.K) Surface direction thermal: 800-1900W/ (m.k) Structure Excellent thermal conductivity; Specific gravity: 1.0-1.9 g/cm3 ; Low heat resistance, soft and easy to cut Ultra thin: Thickness 0.

3 Axial direction thermal conductivity: 20-30W/(m.K) Surface direction thermal: W/ (m.k) Structure Excellent thermal conductivity; Specific gravity: g/cm3 ; Low heat resistance, soft and easy to cut Ultra thin: Thickness mm; Surface can be combined with other materials such as metal, plastic, adhesive, etc Graphite film has a unique grain orientation, uniform thermal conductivity along the two directions, and the film layer structure can be well adapted to any surface, shielding heat source and components of the same time to improve the performance of consumer electronics products.

4 Various Materials of Thermal Conductivity (A-B direction) Diamond Graphite Heat Conductive Sheet 25um Graphite Heat Conductive Sheet 70um Graphite Heat Conductive Sheet 100um Copper Aluminium Magnesium Oxide Alloy Stainless Steel Heat transfer Sheet Thermal 500 Conductivity 1000 W/(m.k)

5 Processing of High Thermal Conductivity Graphite Film Processing of High Thermal Conductivity Graphite Film There are two main methods for the fabrication of high thermal conductivity graphite film, which are made of natural graphite and high molecular organic compounds (polyimide) through a certain process

6 Processing of High Thermal Conductivity Graphite Film Graphite film with high thermal conductivity produced from natural graphite Purification of natural graphite Acidification Removing impurities Water washing Graphitization Carbonization Calendaring into slices Extrusion

7 Processing of High Thermal Conductivity Graphite Film High thermal conductivity graphite films synthesized by polymer organic Carbide Furnace Graphitizing Furnace Substrate Treatment Carbonization Graphitization Die cutting machine Laminating machine Die cutting laminating Calendaring

9 Processing of Carbonization Carbonization is carried out after pre-heating the polyimide film as a starting material under reduced pressure or in a nitrogen gas. The pre-heating is carried out at a temperature in a range of room temperature to 1,500C. Thermal treatment for carbonization should be 800 C. or higher at minimum. In order to obtain a graphite film having excellent flexibility and thermal diffusivity, the thermal treatment for carbonization is preferably carried out at 900 C. or higher, and more preferably at 1000 C. or higher. In order to avoid wrinkling of the starting polymer film, the carbonization process may be carried out in such a way that the temperature is increased while the film is pressured in a thickness direction of the film to the extent that the film is not damaged 7

10 Processing of Graphitization Graphitization may be carried out in continuously by transferring the carbonized film to a graphitization furnace from where the carbonization was performed, or may be carried out continuously from the carbonization. The graphitization is carried out under reduced pressure or in an inert gas. Argon or helium is suitable as the inert gas. The graphitization is carried out with a thermal treatment at 2,600 C. or higher, preferably at 2,800 C. or higher, and more preferably at 2,900 C. or higher. If the temperature for the thermal treatment is equal to or more than 2,600 C., a graphite film having excellent flexibility and thermal diffusivity, and being low in graphite dust generation can be obtained.

11 Processing of Carbonization and Graphitization A more preferable aspect of a process for producing a graphite film having flexibility in the present invention is such that the carbonization process and the graphitization process are carried out with a laminate of two or more raw material films. The temperatures specified for the thermal treatments of the present invention (carbonization process, graphitization process) are actual temperatures at a center of a heater(s) used for the thermal treatments. The temperature of the heater(s) may be measured by using a thermocouple when the temperature to measure is equal to or less than 1,200 C., and by using a radiation thermometer when the temperature to measure is more than 1,200 C.

12 Processing of Calendaring Reduce the thickness of the film Increases the thermal and electrical conductivity of the material, and makes the less susceptible to damage. Improves the thermal conductivity of the material and causes the material to be easier to handle. Graphite sheet having a density of 1.1 g/cc can be found to have an in-plane thermal conductivity of about 240 W/m C. and a through-plane conductivity of about 23 W/m C. (and, thus, a thermal anisotropic ratio of about 10.4). Calendaring the sheet to a density of 1.7 g/cc, as opposed to 1.1 g/cc, the in-plane thermal conductivity can be found to have been increased to about 450 W/m C., and the through-plane thermal conductivity decreased to about 2 W/m C., thus increasing the thermal anisotropic ratio of the individual sheets to about 225.

13 Processing of Laminating/ Die-cutting Film was subjected to roll pressing or lamination, to obtain a high thermal conductivity graphite film. The tension control at 0.1 kg-20 kg. To obtain a soft and smooth surface, a uniform thickness with high thermal conductivity graphite film.

14 A method for preparing a high thermal conductivity graphite film Step 1- Polyamide film as the original film plasma treatment; Step 2-a step in the original film after processing into high-temperature furnace, the furnace closed, heating and controlling the temperature at , keep the furnace pressure at 0.05 Pa-15 Pa, time control in 10 hours; Step 3-continue to heat up, high-temperature furnace control temperature at , the high temperature inert gas is introduced into the furnace, the furnace pressure is maintained at 10 Pa-50 Pa, time control in 10 hours; inert gas is nitrogen. Step 4- continue to heat up, temperature control of the furnace temperature at , continue to the high-temperature furnace an inert gas, the furnace pressure is kept at 5 Pa-30 Pa, time control in 10 hours; inert gas is argon. Step 5- continues to heat up, high-temperature furnace control temperature at , increasing the flow of inert gas to the high-temperature furnace, the furnace pressure is maintained at 0.5 atm-1.5 atm, time control in 10 hours, natural cooling after cooling to obtain carbon foam film; inert gas is argon. Step6- the carbon foam in step 5 film was subjected to roll pressing or lamination, to obtain a high thermal conductivity graphite film. The tension control at 0.1 kg-20 kg. To obtain a high thermal conductivity of graphite film surface soft and smooth.

conductive film, before the door or front and rear double open the door, by the device of carbide PI film, has excellent resistance structure and density.

15 Special Carbide furnace Purpose: high thermal conductivity material (PI film) vacuum carbonization. Product structure features: High thermal conductive membrane vacuum carbonization processing is the key equipment of the production of high-performance thermal conductive film, before the door or front and rear double open the door, by the device of carbide PI film, has excellent resistance structure and density. Can realize continuous carbide vacuum sintering process; Equipped with decoking system, strengthen the result of decoking, furnace atmosphere is more stable, the quality of the product easy to control; Extend the service life of carbon felt and hot material.

16 Processing Special Carbide of Carbonization furnace Using resistance heating, graphite tube heater life is long, the heating effect is good, maintenance is convenient. Uniform heating, reliable insulation and temperature measuring system, advanced the design concept, the reasonable structure of heat, high quality materials, to ensure that the vacuum furnace temperature uniformity. Temperature measuring component USES the domestic and international brand, to ensure the accuracy of temperature measurement. Advanced temperature control system, the import digital intelligent temperature control table, can real data communication with PLC, fully automatic high-precision complete process temperature control temperature, heating system according to the given temperature curve, and can store four 40 different process heating curve. Single room, horizontal structure, compact equipment layout is reasonable, cover an area of an area small.

Special Carbide furnace Advanced automation control, water, electricity, gas comprehensive PLC automatic control and protection system, PLC to realize the safety chain, has over temperature, sensors,

17 Special Carbide furnace Advanced automation control, water, electricity, gas comprehensive PLC automatic control and protection system, PLC to realize the safety chain, has over temperature, sensors, broken accidentally, water pressure, furnace pressure, water flow, water temperature higher sound and light alarm. Environmental protection, energy saving, no purifying essence vacuum discharge gas, effectively protect the vacuum pump is working well, and good effect of decoking. High temperature furnace cooling using natural cooling, low-temperature cooling by positive pressure of inert gas, to speed up the cooling. Exclusive design furnace blast valve, safe and reliable. Technical parameters and configuration Model JR - TL - 40/160 JR - JR - TL TL - 50/120-60/120 Rated temperature 1600 The limit temperature 1650 Temperature control precision of + / - 1 or less Rated power, 100, 120, rated supply voltage The heating voltage rating according to the design, configuration before furnace transformer Vacuum and limit of 40 pa (vacuum cold) The workspace size 400 * 400 * * 500 * 600 * 600 * Manual/automatic control way Rotary vane vacuum system or slide valve vacuum pump and roots vacuum pump The working environment of vacuum, N2 and Ar2 gases

Graphite furnace Uses: Be widely used in the ultra-high temperature furnace within 3000 degree Celsius for various carbonization and graphitization of carbon material experiments by the pilot

18 Graphite furnace Uses: Be widely used in the ultra-high temperature furnace within 3000 degree Celsius for various carbonization and graphitization of carbon material experiments by the pilot production. Be used for setting the graphitization of Carbon fiber filament and other available materials that can sinter and smelt in carbon environment. Be used to deal with battery materials, graphite modified, preparation of high modulus fiber, etc.

19 Graphite furnace Temperature: Maximum operating temperature: 3000 C; common operating temperature: 2800 C. Vertical constant temperature zone: Diameter mm; Horizontal isothermal region: Diameter mm. Temperature uniformity: is less than or equal to ±15 C; Temperature accuracy : ±1 C Working atmosphere: vacuum replacement Ar,N2 protection (slightly pressure)

20 Graphite furnace Temperature measurement: infrared optical temperature measurement, Testing range C; measurement accuracy: 0.3%;

Automatic Lamination Machine AL 1 is collaborative endeavor between Mark Engineering (renowned for Auto Feeders/Stackers) and Hy-Tek Print Mac (specializes in Aqueous / Thermal Laminators).

21 Automatic Lamination Machine AL 1 is collaborative endeavor between Mark Engineering (renowned for Auto Feeders/Stackers) and Hy-Tek Print Mac (specializes in Aqueous / Thermal Laminators). integrated with best quality automation and electronics components with ergonomic touch screen for ease of operation, precise under lap control and most reliable machine performance. Super finished chrome plate roller ensures best quality results in Thermal, Aqueous or Dual lamination. Optional pre-loading device enhances production 4 times compared to manual feeding. Every detail from design to after sales service is meticulously attended to make the AL 1 run trouble free for many years. AL 1 is virtually maintenance free. Laminating machine

Laminating machine Features Automatic Lamination is having Heavy duty frame structure Proven high speed stream feeding technology Attachable with lamination machine by all manufacturer (with Hy-Tek

22 Laminating machine Features Automatic Lamination is having Heavy duty frame structure Proven high speed stream feeding technology Attachable with lamination machine by all manufacturer (with Hy-Tek Print Mac, Bangalore for India) Double sheet detection Heavy duty pile lift system Automatic Lamination is Ergonomically designed touch screen or HMI for easy machine operation High end PLC and Servo motor controlled drive system for precise under lap control Optional pre-loader for reduced lead time Hardened and profile ground gear train to facilitate precise paper feed and to diminish noise decibel level Speed up to 12,000 SPH Dual advantage of thermal & aqueous lamination Duplex unwind shafts, micro adjustable laterally, with film trim slitter & perforating mechanism 10 Dia.super polished, laminating chromed roller PID type temperature control unit with digital temp. display Rewind station with heavy duty clutch for take-up of aqueous & low gsm substrate. Supplementary adhesive tank (Approx) 25 kg Sheet counter with digital read-out Carbon steel helical gear train, duly toughened and profile ground to deminish decibel level

23 Technical Details Laminating machine

24 Die-cutting machine Basic Info Model NO.: DP-650J Imprinting Type: Platen Die Cutting Tool: Steel Plate Application: Paper Packaging Materials, Stickers Products, Heat Insulation Material, Insulating Materials, Dust-proof Material, EMI Shielding Materials, Earthquake Products Package: Wodden Case Origin: Kunshan, Jiangsu, China. Species: Graphite Die Cutting Machine Placing Form of Template: Horizontal Automatic Grade: Automatic Specification: SGS HS Code:

25 Die-cutting machine Product Description DP-650 Hydralic Die-Cutting Machine for Roll Material thermal graphite sheet die cutting machine Powerful, Precise, Fast. Suitable for roll materials. Available in a wide range of powers from 8 tons to 80 tons with cutting surface from 650mm*600mm up to 1000mm*800mm. Functional Characteristics Flexible and convenient operation, Photoelectric registering system, A programmer controller (PLC) Kiss Cut, through cut both available. Anti-vibration machine feet, A cutting speed up to punches per minute.

26 Die-cutting machine Scope Application It is applied to cut various materials, such as Rubber, Plastic, Paper Board, Aluminum Foil, Cooper foil, PET, Protective film, Mylar, Reflector, Diffuser, Gaskets, Silicon Tape etc. Kiss cutting flat-bed machines are studied and manufactured to make kiss-cutting and total cutting of any technical flexible material. The kiss cutting machines are provided with strong steel bodies, they require very low maintenance and they have a simple and quick set up. They can be easily managed and they can make simple and complex kiss cutting productions with accuracy and high quality standards. managed by touch screen which can memorize a very high number of programs and ensure quick and easy set up and kiss cutting production process. Kiss cutting high speed and high versatility with easy and fast set up Studied and manufactured to grant high precision, reliability and a very long life, allowing our customers to save their money.

27 Die-cutting machine Recommended for simple and complex productions, the kiss cutting flat-bed machines can be equipped with many optional systems to ensure excellent results in technical material kiss cutting converting in many different lines of business: Adhesive/double sided adhesives kiss cutting/total cutting Car emblems kiss cutting/total cutting Automotive kiss cutting/total cutting Abrasive materials kiss cutting/total cutting Plastics kiss cutting/total cutting Foam kiss cutting/total cutting Felts kiss cutting/total cutting Filters kiss cutting/total cutting Medical sector kiss cutting/total cutting Electronics kiss cutting/total cutting Gaskets kiss cutting/total cutting Labels kiss cutting/total cutting Rubber kiss cutting/total cutting. Kiss cutting machines with high modularity

Kiss cutting flat-bed machines can be equipped with a high variety of optional systems in order to make with accuracy the following productions: lamination material feeding kiss

28 Kiss cutting flat-bed machines can be equipped with a high variety of optional systems in order to make with accuracy the following productions: lamination material feeding kiss cutting/total cutting at register scrap rewinding knock-out of the totally cut parts stacking remove or add a liner rewinding on one or more rolls cut the material in set (guillotine). Die-cutting machine

29 Application Notebook PC PSG 0.1mm graphite heat sink Wearable devices Smartphone Heat dissipation requirement: Notebook PC are usually used the heat pipe + fan cooling module to solve the heat, a large number use of graphite heat sink to auxiliary heat dissipation in recent year, the future market is very good looking. Heat dissipation requirement: -chipset -screen -battery Heat dissipation requirement: -LCD thermal -chipset LED and others

30 Value chain of industries -Polyimide film -Protective film -Tape Graphite film Electric power Main equipment: -Graphitizing furnace -Carbide furnace -Die cutting machine -Laminating machine -etc. Smartphone Tablet PC Notebook PC LED lamp etc.

31 Demand analysis of heat dissipation materials for consumer electronics % 5% % % E Demand of heat dissipating materials for consumer electronics (Million of films) Growth rate % 9% Demand for heat dissipation materials for consumer electronics continued to grow rapidly and expected to reach 36 billion films in 2015.

32 Demand analysis of heat dissipation materials for consumer electronics 500% 400% 300% 200% 100% 0% 100% 100% 100% 100% 100% 100% 91% 90% 87% 89% 90% 91% 82% 82% 80% 82% 83% 84% 71% 73% 70% 74% 77% 78% 70% 70% 65% 66% 66% 65% 19% 27% 26% 34% 37% 39% E Smartphone Function machine Tablet PC LCD TV LCD Notebook PC Smartphone shipments accounted for continued growth in consumer electronics, it is expected to reach 40% by the year 2015 and the demand for main of graphite heat sink is huge.

33 Market forces : Market of smart phone The global smart phone market growth continuously; China s smart phone market in the future will remain over 10% growth; Further improve the performance of smart phones to improve the application ratio of high thermal conductivity graphite film.

34 Market forces : Market of smart phone 20 Shipments and forecast of global smart phone ( billion Taiwan dollars) E

35 Market forces : Ultra thin laptop, Tablet PC With the continuous improvement of the performance of various consumer electronic products, the volume constantly light and thin, the prices of high thermal conductivity graphite film decline to a certain extent, a wide range of consumer electronics products will also be largescale use of high thermal conductive graphite film. The use of ultra-thin notebook PC with high thermal conductivity graphite film area is much larger than the phone, will become a new growth point in the graphite film industry with high thermal conductivity. In window 10, large screen and others new trends driven by the shipments of global Tablet PC will be further increased.

36 Market forces : Ultra thin laptop, Tablet PC Shipments of global Ultra thin laptop(million Taiwan dollars)

37 Market forces : Ultra thin laptop, Tablet PC Shipments of global Tablet PC (billion Taiwan dollars)

38 Market forces : Demands of wearable devices Nearly 2 years, the wearable devices are flourish. To healthy pedometer is representative of all kinds of smart wristband, Google glass on behalf of the smart glasses, Apple watch as representative of the smart watches and other intelligent can be wearable devices use and shipments to increase rapidly. The chipset of intelligent wearable device center, the screen, the battery has a certain heat dissipation requirements.

39 Market forces : Demands of wearable devices Shipments and forecast of global wearable devices (million Taiwan dollars) Non intelligent wearable device Intelligent wearable device

the product of the production has certain technical threshold.

40 Technical characteristics and development trend of the industry Characteristics of technical industry The core technology of high thermal conductivity graphite film of the selection of raw materials and preparation technology, the product of the production has certain technical threshold. At present, there are many domestic enterprises are in the R&D related technologies, but more samples stay in the test manufacturing stage and there are no mass production suppliers.

41 Market forces : Demands of wearable devices Development trend of industry The wider the thickness range, the higher the thermal conductivity With the increase in the scope of application, the market demand for high thermal conductivity graphite film will be more diversified, high thermal conductivity graphite film products will also be more widely in the direction of thickness, and thermal more efficiency in the direction of development. The wider application At present, high thermal conductivity graphite film has been widely applied to the smart phones, and successfully solved the problem of heat of the smart phone terminal. The future of electronic products is becoming smaller and thinner band the development of globalization, high thermal conductivity graphite film will become more widely used in electronic products, becoming the main of electronic products to solve the heat issues.

42 Thank you This slide presentation is prepared by Research & Development Team, KGC Resources Sdn Bhd Any inquiries, feel free to us at

Basic Properties and Application Examples of

Basic Properties and Application Examples of 1. Basic properties of PGS 2. Functions of PGS 3. Application Examples Presentation [Sales Liaison] Panasonic Electronic Devices Co., Ltd. Capacitor Business