In recent years, with the rapid development of graphite technology, as a member of graphite electrode carbon material family, flexible graphite has been favored by more and more people, and has been widely used in many fields. However, as the world’s largest producer and exporter of graphite, our country has a big gap with the developed countries in this aspect. This paper intends to make a simple analysis on the development and application of flexible graphite in China from the working point of view. Superficial view, I hope you have more to teach.
Flexible graphite, graphite is a kind of deep processing products of flake graphite. It is the use of flake graphite can form the characteristics of interlayer compounds, the scale of graphite through a specific chemical treatment, so that the formation of a certain layer of compounds, and then through high-temperature heat treatment, the decomposition of interlayer compounds, at the same time, graphite extension of the C-axis direction of rapid expansion of the formation of a good flexible material, that is, expanded graphite (or flexible graphite), the expansion of graphite added or without binder pressure made of various forms of material is flexible graphite material. Flexible graphite has excellent performance, it retains the flake graphite high-temperature resistance, corrosion resistance, self-lubricating and other properties, but also has softness, resilience, plasticity, permeability, self-adhesive, low density and anisotropic characteristics. Therefore, it can work under harsh conditions. For example, in the sealing aspect, compared with rubber, asbestos and so on, has incomparable superiority, can be called the contemporary “the King of Seals”, some people also call it a “revolutionary material”. Because of this, flexible graphite has aroused the universal attention of the world, and has been developed rapidly. From the 60 ‘s United Carbide company first developed a successful expansion of graphite sealing materials, a short period of 30 years, flexible graphite has entered many fields and even some high-tech fields. Especially, the study of flexible graphite in the developed countries such as the United States, Japan, England and Germany is very extensive, and it has been involved in many deep-seated problems, such as the preparation methods of interlayer compounds, and it is still very important to continue to show.
Graphite processing plant The research and application of flexible graphite in China started late, and the advanced flexible graphite materials used as key equipment were usually imported from abroad. After 1978, with the deepening of reform and opening-up, the research and development of flexible graphite has developed rapidly, and thus entered a new stage.