A kind of equipment and method for preparing graphene composite material by continuous grinding and extruding

A composite material and graphene technology, applied in the field of material processing, can solve the problems of difficult control of the preparation process, complex screw mechanical structure, thick peeling layers, etc., and achieve high peeling efficiency, short preparation cycle, and thin peeling thickness.

Active Publication Date: 2018-03-27
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the disadvantages of low peel strength and thick peeled layers in the preparation of graphene by screw exfoliation in the prior art, the scheme in the prior art has defects such as relatively complicated screw mechanical structure and difficult control of the preparation process. The present invention proposes a continuous grinding The equipment and method for preparing graphene composite materials by extrusion have realized continuous production while increasing the shear strength. Further, a graphene composite product with a thin peeling thickness has been obtained, which prevents graphene from agglomerating and is convenient for storage, and promotes the development of graphene. mass production of

Method used

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  • A kind of equipment and method for preparing graphene composite material by continuous grinding and extruding
  • A kind of equipment and method for preparing graphene composite material by continuous grinding and extruding
  • A kind of equipment and method for preparing graphene composite material by continuous grinding and extruding

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Embodiment 1

[0048] Such as figure 1 As shown, a kind of equipment for preparing graphene composite material by continuous grinding and extruding in the present invention includes feeding mechanism 10, stripping mechanism 20 communicated with feeding mechanism 10 along the process sequence, and is used to collect graphene composite material The collecting mechanism 30 and the driving mechanism 40 include a motor device, which is connected to the feeding mechanism 10 and the peeling mechanism 20 and is used to drive the feeding mechanism 10 and the peeling mechanism 20 individually or simultaneously.

[0049] A feeding port 13 is provided on the feeding mechanism 10 . The feeding mechanism 10 is composed of a co-rotating screw group 11. During implementation, the co-rotating screw group 11 can be a co-rotating twin-screw group, a co-rotating three-screw group, a co-rotating four-screw group or a co-rotating screw group. One of the screw groups with more than four screws. In this embodiment...

Embodiment 2

[0055] Such as figure 1 As shown, a kind of equipment for preparing graphene composite material by continuous grinding and extruding in the present invention includes feeding mechanism 10, stripping mechanism 20 communicated with feeding mechanism 10 along the process sequence, and is used to collect graphene composite material The collecting mechanism 30 and the driving mechanism 40 include a motor device, which is connected and conducted with the feeding mechanism 10 and the stripping mechanism 20 for driving the feeding mechanism 10 and the stripping mechanism 20 .

[0056] Wherein, the feeding mechanism 10 is composed of co-rotating meshing screw groups 11 , and at least one feeding port 13 is provided on the feeding mechanism 10 . During the implementation process, the screw group 11 that engages in the same direction can be one of twin-screw groups that engage in the same direction, three-screw groups that engage in the same direction, four-screw groups that engage in th...

Embodiment 3

[0062] Such as figure 1 As shown, a kind of equipment for preparing graphene composite material by continuous grinding and extruding in the present invention includes feeding mechanism 10, stripping mechanism 20 communicated with feeding mechanism 10 along the process sequence, and is used to collect graphene composite material The collecting mechanism 30 and the driving mechanism 40 include a motor device, which is connected and conducted with the feeding mechanism 10 and the stripping mechanism 20 for driving the feeding mechanism 10 and the stripping mechanism 20 .

[0063] Wherein, the feeding mechanism 10 is composed of co-rotating meshing screw groups 11 , and at least one feeding port 13 is provided on the feeding mechanism 10 . In the implementation process, the co-engaging screw group 11 can be one of the co-engaging twin-screw group, the co-rotating three-screw group, the co-rotating four-screw group or the co-engaging four-screw or more screw group. In the embodime...

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Abstract

The invention provides an apparatus and method for preparing a graphene composite material through continuous grinding extrusion. The method comprises the following steps: adding graphite and a plastic stripping agent to a screw extruder, and carrying out oriented shearing on above raw materials through a feeding mechanism formed by a screw in order to obtain a primary stripping product, conveying the primary stripping product to a stripping mechanism formed by a millstone group, and the primary stripping product undergoes secondary shearing striping through relative rotation of an internal millstone and an external millstone in order to obtain the graphene composite material. The method overcomes the defects of low stripping strength and thick stripping layers of graphene prepared through using screw stripping in the prior art, and the apparatus has the advantages of simple structure, improvement of the shearing strength, realization of continuous production of the graphene composite material, further obtaining of the graphene composite product with thin stripping thickness, avoiding of graphene aggregation, improvement of the quality of graphene, convenience for storage, and promotion of mass production of the graphene product.

Description

technical field [0001] The invention relates to the field of material processing, in particular to a device and method for preparing graphene composite materials through continuous grinding and extrusion. Background technique [0002] In 2004, graphene material was successfully prepared, which triggered a new wave of research on carbon materials. Graphene is a planar carbon nanomaterial composed of a layer of carbon atoms. It is the thinnest known two-dimensional material, with a thickness of only 0.335nm. It is composed of a hexagonal lattice. The carbon atoms in graphene are connected by σ bonds, endowing graphene with extremely excellent mechanical properties and structural rigidity. Moreover, in graphene, each carbon atom has an unbonded p-electron. These p-electrons can move freely in the crystal, and the speed of movement is as high as 1 / 300 of the speed of light, which endows graphene with good conductivity. Optically, graphene is almost completely transparent, abso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/19
CPCC01B2204/04C01B2204/32
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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