Flake Graphite
Size
0.01mm
Carbon Content
99%min
Package
25kg small bags into ton bags
Origin
China
Features
thermal shock resistance, lubricity, conductivity and plasticity…
Application
Lead battery plates positive and negative conductive agent, lithium batteries nickel hydrogen etc
Natural flake graphite has superior physical and chemical properties and is widely used in metallurgy, coatings and refractory industries. It is an important non-metallic raw material that is indispensable for today’s high-tech. Flake graphite is divided into large flake graphite and fine flake graphite according to the size of its scales. Usually, large flakes refer to +32 mesh, +50 mesh, +80 mesh, and +100 mesh flake graphite.
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Graphite paper is made of high carbon flake graphite by chemical treatment and high-temperature expansion rolling. Its appearance is smooth, without obvious bubbles, cracks, wrinkles, scratches, impurities, and other defects. It is the basic material for making various flake graphite seals. It is widely used in electric power, petroleum, chemical, instrument, machinery, diamond and other industries of machine, pipe, pump, valve dynamic seal and static seal, is the replacement of rubber, fluorine plastic, asbestos and other traditional sealing parts of the ideal new sealing material.
Flake graphite paper specifications mainly depend on its thickness, the use of different specifications of flake graphite paper thickness is different, generally, 0.05mm~3mm and other specifications, the thickness of below 0.1mm can be called ultra-thin flake graphite paper.
Flake graphite paper is divided into flexible flake graphite paper, ultra-thin flake graphite paper, sealed flake graphite paper, thermal flake graphite paper, conductive flake graphite paper, and so on. Different kinds of flake graphite paper can play their due role in different industrial fields.
Flexible flake graphite paper: refers to the natural flexible flake graphite paper or roll made of natural expandable graphite after high-temperature expansion. The thickness range is 0.025-0.10mm. Its specifications and density shall meet the following requirements: Ultra-thin flake graphite paper: refers to the flake graphite paper whose thickness is less than 0.07mm. It can be divided into less than 0.03mm, 0.03mm-0.05mm, and greater than 0.05mm-0.07mm.
Thermal conductive flake graphite paper: it has excellent thermal conductivity and heat dissipation performance, and has a certain flexibility. It can be bent or directly attached to the surface of electronic equipment. Heat will be evenly dissipated in two directions through the surface of thermal conductive flake graphite paper. Thermal conductive flake graphite paper has the advantages of small space, lightweight, high heat dissipation efficiency, easy cutting, etc. Thermal conductive flake graphite paper can be compounded with other heat dissipation metal, made of thermal conductive flake graphite sheet, flake graphite paper, and metal sheet performance complement each other so that its products play a greater role in the field of heat dissipation.
Flake graphite paper mainly uses expanded flake graphite as raw material, through a series of processing technology, the flake graphite powder is pressed into flexible, light paper flake graphite products.
flake graphite paper has the following six characteristics:
1, Workability: flake graphite paper can be die-cut into different sizes, shapes, and thicknesses, can provide die cut flat plate, the thickness can be from 0.05 to 1.5m.
2, High-temperature resistance: the use temperature of flake graphite paper can be up to 400℃, the lowest can be lower than -40℃.
3, High thermal conductivity: the maximum in-plane thermal conductivity of flake graphite paper can reach 1500W/mK, thermal resistance is 40% lower than aluminum, 20% lower than copper.
4, Flexibility: flake graphite paper is easy to make laminate with metal, an insulating layer, or double-sided adhesive, increasing the design flexibility, can have adhesive in the back.
5, Lightness: flake graphite paper is 30% lighter than aluminum of the same size and 80% lighter than copper.
6, Ease of use: flake graphite heat sink can be smoothly attached to any plane and curved surface.
According to the six characteristics of flake graphite paper finishing, can be processed into flexible flake graphite packing ring, flexible flake graphite plate, flake graphite gasket, and other flake graphite products.
At present, flake graphite paper application technology is mainly used in notebook computers, flat-panel monitors, digital cameras, mobile phones, and personal assistant equipment.
