A kind of macro-preparation device and method of carboxyl functionalized graphene

Abstract

The invention discloses a macro preparation device and method of carboxyl functionalized graphene and belongs to the technical field of preparation of graphene. The macro preparation device comprisesa first dispersion kettle, an activation reactor, a first filtering and washing tower, a second dispersion kettle, a reaction kettle, a second filtering and washing tower, a third dispersion kettle, adrying tower, a first storage tank and a second storage tank, wherein the first dispersion kettle, the activation reactor, the first filtering and washing tower, the second dispersion kettle, the reaction kettle, the second filtering and washing tower, the third dispersion kettle and the drying tower are connected in sequence; the first filtering and washing tower, the first storage tank and thefirst dispersion kettle are connected in sequence; the second filtering and washing tower, the second storage tank and the second dispersion kettle are connected in sequence. The macro preparation device and method of the carboxyl functionalized graphene, disclosed by the invention, have the advantages of simple and compact structure, reasonable design, high continuous degree and less equipment investment; the carboxyl functionalized graphene can be efficiently prepared and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of graphene preparation, and more specifically, relates to a macro-preparation device and method of carboxyl-functionalized graphene. Background technique [0002] Graphene is a new type of two-dimensional carbon nanomaterial, which has a unique monoatomic layer two-dimensional crystal structure, high specific surface area, high strength, electrical conductivity, thermal conductivity and other unique properties. It is known as "the miracle that changes the 21st century". Material". However, due to its large specific surface area and high surface energy, pure graphene is very easy to agglomerate in solvents and matrices, which greatly restricts its intrinsic excellent characteristics. Functionalized graphene retains the properties of graphene while , supporting functional groups, endowing it with good compatibility and adjustable chemical, electrical and other properties, effectively solving the problem of d...

AI Technical Summary

Problems solved by technology

[0005] At present, the problems of carboxylated graphene are: the preparation process is complicated, the carboxyl group of the obtained carboxylated graphene is in the sheet or on the edge, the reactivity is low, and the steric hindrance effect is large, especially in the in-situ polymerization modification. At the same time, only a small part of the carboxyl groups can form bonds with the matrix material in the form of chemical bonds and disperse in the product, which cannot be well dispersed, and may even cause polymerization inhibition.

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