2023-03-28

Preparation of ultra -fine graphite powder

Graphite powder is soft, black and gray; it is greasy and can pollute paper. The chemical properties of graphite powder are relatively stable at normal temperature, insoluble in water, dilute acid, dilute alkali and organic solvents; the material has high temperature resistance resistance, which can be used for refractory materials, conductive materials, and wear -resistan

2023-07-24

Can scales graphite be used as non -metallic fillers

When the scale graphite is used as a fire -resistant filler, it is an expansion of graphite powder. It is a graphite layer of inter -graphite compound obtained by natural graphite scales as raw materials. Under heating conditions, the volume of expansion graphite expands sharply (can reach 300 times) to suffocate flames, forming expansion together, which can be isolated flames, delaying or interrupting the spread of flames, not burning, flexible, high surface energy, and good coach layer. However, the volume and dose of swollen should be appropriately selected. Tests show that the best dosage is 150 μM particles, 30%expansion rates and 5%. The editor of the graphite manufacturer below introduces whether the scale graphite can be used as a non -metal filler and analyzes:Graphite can be used directly as a carbon conductive filler or a composite conductive filler for conductive coatings. However, due to the large increase in scale graphite, the function of the coating will become fragile

2023-10-17

How is expanded graphite produced?

Due to the fact that graphite is a non-polar material, it is difficult to intercalate with small polar organic or inorganic acids alone, so oxidants are usually required. The chemical oxidation method generally involves soaking natural flake graphite in a solution of oxidants and intercalators. Under the action of strong oxidants, graphite is oxidized, causing the neutral network of planar macromolecules in the graphite layer to become positively charged planar macromolecules. Due to the extrusion effect of isotropic positive charges between positively charged planar macromolecules, the spacing between graphite layers increases, and the intercalation agent is inserted between the graphite layers to form expanded graphite.Expanded graphite will rapidly shrink when heated at high temperatures, with shrinkage times reaching tens to hundreds or even thousands of times. The apparent volume of contracted graphite reaches 250-300 milliliters/gram or more. The shrunken graphite is in the shap

2023-05-17

Graphite Product Materials advantage

Graphite products (including graphite rods, graphite products, graphite blocks, graphite boards, graphite carbon pipes, graphite rings) are important strategic resources. Graphite is a degeneration of carbon substances, which is most common in Dali, sliced rocks, or hemp rocks. The coal seam can form graphite through the thermal deterioration, while a small amount of graphite is a native mineral of fire rock.The industrial graphite ore is divided into two categories: crystal (scale) graphite ore and steady crystal (earth -shaped) graphite ore. Crystal graphite ore can be divided into two types: scale -like and dense. Chinese graphite ore is the type of scales -like crystal, followed by hidden crystal type, and dense crystal graphite is only seen in individual mining plants such as Tocobra, Xinjiang.Due to its special structure, graphite products are resistant to high temperature resistance, heat shock resistance, conductivity, lubrication, chemical stability, and plasticity. Important

2023-05-23

Heating graphite

Graphite radiator (3K-SBP) is a brand new heat-conducting heat dissipation material with unique grain orientation, which is evenly conducted in two directions. Improve the performance of consumer electronics. The product is uniformly dissipated while providing heat isolation in terms of thickness. The molecular structure diagram of the thermal graphite sheet is as follows:The unique combination of heat dissipation and thermal insulation performance of graphite heat conductive solutions allows heat -conducting graphite to become an outstanding material option for heat management solutions. The thermal graphite plane has the ultra-high thermal conductivity within the range of 150-1500 W/m-K.The chemical composition of Thermal Flexible Graphite Sheet is mainly a single carbon (C) element. It is a natural element mineral. The film polymer compound can obtain a graphized thin film under high temperature and high pressure because the carbon element is non -metal. Elements, but there is a co

2023-04-21

What should be paid attention to when processing refractory materials with flake graphite?

Future Development Trends of Battery Materials

1、 Research on New Battery MaterialsCurrently, lithium-ion batteries are the most common type of battery in the market, but they have issues with energy density, safety, and cost. Therefore, the research on new battery materials has become a hot research field. For example, Solid-state battery materials, high-performance capacitor materials, metal air battery materials are all current research directions. These new battery materials are expected to solve the problems existing in existing battery materials and also bring new possibilities for future battery applications.2、 Sustainability of battery materialsIn the pursuit of new energy and green environmental protection, the sustainability of battery materials has become an important issue. How to reduce the production cost of battery materials and improve the recycling rate is currently a hot research topic. In addition, the lifespan of batteries is also an important factor affecting sustainability. Therefore, future research on batte

2023-07-03

The production and application of battery dedicated graphite

Battery materials have always been the field of attention in the new energy industry. Among them, graphite, as a type of battery material, has been widely used for its good conductivity, high temperature stability and corrosion resistance. This article will introduce the production and application of battery -specific graphite to explore its advantages and future development prospects in the battery field.First of all, the application of graphite as a battery material is mainly reflected in lithium ion batteries. At present, lithium -ion batteries have become an important driving force in electric vehicles, mobile phones and other fields. Among them, graphite, as a lithium -ion battery negative electrode material, has the characteristics of high energy density and long life, and has been widely used. Its production process mainly includes steps such as carbonization, drying, ball milling, and screening. Among them, the selection of raw materials and the optimization of production tech

2023-08-07

Impermeable graphite material

Impermeable graphite is an ideal material with good corrosion resistance and thermal conductivity in chemical production. It can be used to make heat exchangers, reaction tanks, absorption towers, gas combustion towers, hydrochloric acid synthesis furnaces, graphite centrifugal pumps, jet pumps, and various pipelines and joints. Impermeable graphite is divided into three categories:1. Impregnated impermeable graphite products - This is made by impregnating the graphite matrix. Impregnating agents not only reduce the porosity of graphite, but also increase the compressive strength and tensile strength of graphite materials by 1-2.5 times and 4-5 times respectively; Increase bending strength by 2-3 times; Increase the impact strength by 2-2.5 times. Commonly used impregnating agents include phenolic resin, furfural ketone resin, furfural alcohol resin, organic silicon resin, water glass, paraffin, divinylbenzene, asphalt, etc.2. Pressed impermeable graphite product - is a material made

2023-08-17

Graphite anode plate

Graphite anode is a graphite plate, block, or rod used as an anode for electrolytic cells in the electrolysis industry. It has characteristics such as high temperature resistance, good conductivity and thermal conductivity, easy machining, good chemical stability, strong acid and alkali corrosion resistance, and low ash content.There are two types of electrolysis industry using graphite anodes, one is aqueous solution electrolysis, and the other is molten salt electrolysis. In the past, the chlor alkali industry, which used to produce caustic soda and chlorine gas by electrolysis of salt water solutions, was the largest user of graphite anodes. However, the chlor alkali industry now widely uses the ion membrane electrolysis process for alkali production, and the graphite anode diaphragm method for alkali production has gradually been phased out. Therefore, the production of graphite anodes is in an extremely shrinking state. Currently, graphite anodes are only used in industries such