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A kind of preparation method and application of graphene/cement dispersing device and graphene modified cement-based material

A cement-based material and graphene modification technology, which can be applied to cement mixing devices, clay preparation devices, chemical instruments and methods, etc., can solve the problems of complex process and insufficient graphene dispersion, and achieve a simple, practical and good design scheme. The effect of promoting application value

Active Publication Date: 2020-10-27
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the graphene existing in the above-mentioned prior art, the dispersion of graphene in the cement is not uniform enough, the process is complicated, and the additional problems brought by the additives added to realize the dispersion, etc., the present invention provides a graphene / cement dispersion device and graphene modification Preparation method and application of cement-based material

Method used

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  • A kind of preparation method and application of graphene/cement dispersing device and graphene modified cement-based material
  • A kind of preparation method and application of graphene/cement dispersing device and graphene modified cement-based material
  • A kind of preparation method and application of graphene/cement dispersing device and graphene modified cement-based material

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Embodiment 1

[0041] refer to figure 1, a graphene / cement dispersing device, comprising: a pneumatic conveying station 1, a variable diameter joint 2, a first pneumatic quick-insert tracheal joint 3, a trachea 4, a second pneumatic quick-insert tracheal joint 5, a first hose 6, an oval Mixing device 7, second hose 8 and pagoda-shaped joint 9; the outlet of the pneumatic conveying station 1 is connected to the large-diameter end of the variable-diameter joint 2, the small-caliber end of the variable-diameter joint 2, the first pneumatic quick-plug The trachea connector 3, the trachea 4, the second pneumatic quick-insert trachea connector 5, and the first hose 6 are sequentially connected, the first hose 6 is connected to the inlet end of the elliptical mixing device 7, the second hose 8 is connected to the elliptical The outlet end of the mixing device 7 is connected, and the second flexible pipe 8 is connected with the inlet of the pneumatic conveying station 1 through a pagoda-shaped joint...

Embodiment 2

[0043] A kind of graphene / cement dispersing device, with embodiment 1, difference is: reference figure 2 , the pneumatic conveying station 1 is a pneumatic diaphragm pump, which is connected with an air compressor as a power source; the dispersion device also includes a three-way joint 10, and one end of the three-way joint 10 is connected to the second pneumatic quick-insert air pipe joint 5. The other end of the three-way joint 10 is connected to the first hose 6, and the other end of the three-way joint 10 is connected to the switch 11, so as to control the size of the air flow at any time; the oval mixing device 7 is provided with a switch port for feeding materials.

Embodiment 3

[0045] 1, a kind of preparation method of graphene modified cement-based material adopts the device described in embodiment 2 to implement, comprises the steps:

[0046] (1) The volume of the air compressor adopting the variable diameter joint of 8cm to 2cm is 250L, and the elliptical mixing device is used as an elliptical plastic bottle with a length of 40cm and a diameter of 20cm in the middle;

[0047] (2) Put 100g of cement particles and 40mg of graphene powder into an oval plastic bottle in advance, and turn on the air compressor after sealing. The dispersion time is 10, 30, and 60 minutes, respectively. After the time is up, turn off the instrument, collect 95g of dispersed materials at different times, and weigh 90g of dispersed materials, mix them with 40.5g of water respectively, and use an ordinary slurry mixer to stir and form them. The molding size is 2cm×2cm ×2cm, the number of test blocks is 6 (two for each dispersion time, a total of 3 cement pastes with the sam...

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Abstract

The invention relates to the technical field of cement concrete preparation, in particular to a graphene / cement dispersion device, a preparation method for a graphene modified cement base material andapplication. The device includes a pneumatic transmission station, a reducer union, a first pneumatic quick-insert air pipe joint, an air pipe, a second pneumatic quick-insert air pipe joint, a firsthose, an elliptical mixing device, a second hose and a pagoda-type joint; the outlet of the pneumatic transmission station is connected with one end with the large diameter of the reducer union; theend with the small diameter of the reducer union; the first pneumatic quick-insert air pipe joint, the second pneumatic quick-insert air pipe joint and the first hose are sequentially connected; the first hose is connected with the inlet end of the elliptical mixing device; a second hose is connected with the outlet end of the elliptical mixing device; and the second hose is connected with the inlet of the pneumatic transmission station through the pagoda-type joint. Graphene and cement particles are impacted through high-speed air flow, and two kinds of particles are uniformly dispersed through countless impact and friction within a finite space.

Description

technical field [0001] The invention relates to the technical field of cement concrete preparation, in particular to a graphene / cement dispersing device and a preparation method and application of a graphene-modified cement-based material. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] As one of the most widely used construction materials in the world, cement concrete is of great practical significance to study its performance improvement. With the discovery of graphene materials, its excellent properties have attracted widespread attention, and many researchers have tried to introduce graphene into cement to improve many properties of cement. [0004] Due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28C5/00B28C5/06C04B28/00C04B14/02
CPCB28C5/006B28C5/06C04B28/00C04B14/024
Inventor 叶正茂景国建巩新王树贤程新
Owner UNIV OF JINAN