Method for preparing polymer/graphene composite material

A composite material and polymer technology, applied in the field of nanomaterials, can solve the problems of difficult to restore crystal structure, self-aggregation, structural defects, etc., and achieve the effect of easy large-scale production, overcoming self-aggregation, and realizing large-scale production.
CN101864005AActive Publication Date: 2010-10-20HUAQIAO UNIVERSITY +1
4 Cites 53 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUAQIAO UNIVERSITY
Publication Date
2010-10-20

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for preparing a polymer / graphene composite material, which comprises: firstly, uniformly dispersing graphite powder in a polymer liquid medium, and grinding and stripping the graphite by using grinding balls to obtain polymer / graphene suspension; and secondly, obtaining the polymer / graphene composite material by adopting a method of adding a precipitator into the polymer / graphene suspension to precipitate the polymer and graphene from the solution, or a method of directly initiating the polymerization of a polymer monomer or a method of curing a prepolymer of the polymer. The method is a new in-situ graphene preparation and compounding method. Once generated, the graphene is enveloped and isolated by polymer molecules or the prepolymer monomer, so the self-agglomeration of the graphene is prevented effectively. In addition, the mechanical grinding in the polymer liquid medium ensures the full mixing of the filler and the polymer, so that the graphene can disperse in a polymer substrate more effectively. And the mechanical ball grinding process makes scale expansion and the realization of industrial production easier.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for preparing a polymer-based graphene composite material, which belongs to the technical field of nanometer materials. Background technique

[0002] The latest research shows that when the thickness of graphite crystals is less than 10 carbon atomic layers (thickness is generally less than 5 nanometers), graphite materials will exhibit a series of excellent properties that are completely different from ordinary three-dimensional graphite. This atomically thick graphite flake is called graphene. Studies have shown that the specific surface area of ​​graphene can be as high as 2600m2 / g; the Young's modulus is about 1100GPa; the fracture strength is 125GPa; the excellent mechanical strength and thermal conductivity of graphite crystals are retained, which are 1060GPa and 5000W / m·K respectively. In addition, graphene also exhibits excellent electron transport capabilities, and its electron mobility is as high as 15000 cm...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More