Study Of Flake Graphite Multifunction Carbon Material And New Technics Route

On the industry production, the flake graphite can be decided into 50, 80 and -100 mesh according to the flake size. Among them, the carbon content inside the flake graphite is different, and -100 mesh of the flake graphite owns the lowest carbon content, and it makes against being used to prepare the multifunction carbon material which has the bigger expansion volume. Although the price of raw materials is cheaper, -100 mesh of the flake graphite has been used little in the process of the productions. Thereby, -100 mesh of the flake graphite is treated almost as doffing thing. Accordingly, 50 and 80 mesh of the flake graphite have the bigger carbon content, and it makes for being applied to produce the multifunction carbon material. So they have an important application worth on industry production. Yet so far the costs of the multifunction carbon material have been the bigger. In the process of washing, water wealth has been also wasted and the environmental pollution caused.In the dissertation, -100 mesh of the flake graphite which has the lower carbon content and the lower price is used as raw materials. The methods of the chemistry oxidation and the ultrasound irradiation are applied to prepare the multifunction carbon material (Graphite intercalation compounds, GIC) which has the bigger expansion volume. In the process, -100 mesh of the flake graphite used little on industry production has been utilized effectively. Not only this supplies a production technology on industry production, but also it is more important that the cost of raw materials has been saved in the process of producing the multifunction carbon material.In addition, the existing technics route to prepare the multifunction carbon material has been improved in the dissertation. Comparing the existing technics route with the improving technics route, there are two differences: the existing technics route is that the raw materials are pitched once in the process; the improving technics route is that the raw materials are done in batches. In addition, water washed in the existing technics route has not been recycled, but water washed in the improving technics route has been recycled. This shows that there are merits in the process of the improving technics route to prepare the multifunction carbon material. Firstly, the new technics route is improved on the base of the original technics route, and the production facility is not essential to be augmented. Secondly, water used in the production process has been recycled, and the production cost can be saved, and the water wealth can be economized as well as. Thirdly, the amount of wastewater containing acids can be decreased in the process of washing, and the environmental pollution can be also reduced.The research works in the dissertation can be divided in the several aspects below:1. The multifunction carbon materials have been prepared by -100 and 80 mesh of flake graphite, and the methods of the chemistry oxidation and the ultrasound irradiation have been used in the processes.2. The reaction conditions to prepare the -100 mesh of the multifunction carbon material have been probed into and optimized as well as.3. The existing technics route to prepare the multifunction carbon material has been improved, and the production cost has been reduced. Meanwhile, the water wealth has been also economized, and the amount of wastewater containing acids has been decreased as well as.4. SEM, TEM and XRD have been applied to characterize the multifunction carbon material, and the inner structure, the outer morphology and the correlative properties have been analyzed as well as.5. The reaction conditions to prepare the multifunction carbon material have been optimized further, and the exploration and expectation to apply the new technic route has been also finished.