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Method for preparing graphene filled master batch with low energy consumption and large scale

A technology for filling master batch and graphene, applied in the field of material processing, can solve the problems of poor dispersion effect, cumbersome process and high energy consumption, and achieve the effects of reducing equipment cost and energy consumption, overcoming cumbersome process and low energy consumption

Active Publication Date: 2018-01-19
济宁三荷塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the technical defects of using a screw extruder to prepare graphene masterbatch in the prior art, not only the process is cumbersome, but also the dispersion effect is poor and the energy consumption is high. The present invention proposes a low energy consumption, large-scale The preparation method of preparing graphene-filled masterbatch is to use foaming agent H to encapsulate porous resin microspheres loaded with graphene, and then pulverize to obtain masterbatch. The preparation of masterbatch in the present invention does not require extrusion equipment, which reduces equipment cost and energy consumption. Consumption, conducive to large-scale production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Take 3 parts by weight of single-layer graphene powder, 65 parts by weight of porous phenolic resin microspheres with a particle size of 200 μm and a pore size of 50 nm, 25 parts by weight of foaming agent H, 50 parts by weight of acetone, and 2 parts by weight of polyvinyl alcohol as a raw material;

[0030] (2) The foaming agent H is divided into two parts, the weight ratio of the first part of the foaming agent H to the second part of the foaming agent H is 1:1, and then the graphene powder, the The graphene dispersant, the first part of blowing agent H are composited with the porous resin microspheres, the rotating speed is 430rpm, and stirred for 20 minutes, so that the porous resin microspheres are evenly loaded with graphene, and the composite porous resin microspheres are obtained;

[0031] (3) Add the composite porous resin microspheres into the organic solvent, and then add the second portion of blowing agent H at a stirring speed of 120rpm, stir evenly, t...

Embodiment 2

[0033] (1) Take 15 parts by weight of double-layer graphene and multilayer graphene combined powder, 50 parts by weight of polystyrene microspheres with a particle size of 200 μm and a pore size of 800 nm, 20 parts by weight of blowing agent H, 100 parts by weight of methanol and Ethanol mixed solution, the mixture of 1 weight part sodium lauryl sulfate, sodium dodecylbenzenesulfonate, cetyltrimethylammonium bromide as raw material;

[0034] (2) The foaming agent H is divided into two parts, the weight ratio of the first foaming agent H to the second foaming agent H is 1: 2, and then the graphene powder, the The graphene dispersant, the first part of blowing agent H are composited with the porous resin microspheres, the rotating speed is 430rpm, and stirred for 20 minutes, so that the porous resin microspheres are evenly loaded with graphene, and the composite porous resin microspheres are obtained;

[0035](3) Add the composite porous resin microspheres into the organic solve...

Embodiment 3

[0037] (1) Take 5 parts by weight of graphene oxide and nitrogen-doped graphene mixed graphene powder, 35 parts by weight of porous phenolic resin microspheres with a particle size of 150 μm and a pore size of 700 nm, 23 parts by weight of foaming agent H, and 85 parts by weight Ethanol, Virahol mixture, 2 parts by weight of polyvinyl alcohol as raw material;

[0038] (2) The foaming agent H is divided into two parts, the weight ratio of the first part of the foaming agent H to the second part of the foaming agent H is 1:1, and then the graphene powder, the The graphene dispersant, the first part of foaming agent H are composited with the porous resin microspheres, the rotating speed is 180rpm, and stirred for 30 minutes, so that the porous resin microspheres are evenly loaded with graphene, and the composite porous resin microspheres are obtained;

[0039] (3) Add the composite porous resin microspheres into the organic solvent, and then add the second portion of foaming agen...

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Abstract

The invention provides a method for preparing graphene filled master batch with low energy consumption and large scale. The method comprises the following steps: adsorbing graphene with porous resin microspheres having high compatibility with matrix resin; dissolving a foaming agent H in an organic solvent; atomizing to remove the organic solvent; depositing the foaming agent H on the surfaces ofthe porous resin microspheres, and encapsulating and coating; separating by a centrifuge and pulverizing to obtain the functional master batch. The scheme provided by the invention overcomes the technical defects of complicated technology, high equipment cost and high energy consumption caused by adopting a screw extruder; extrusion equipment is not required to prepare master batch; the equipmentcost and the energy consumption are reduced, and large-scale production is facilitated; furthermore, due to the high compatibility between the porous resin microspheres and the matrix resin, the graphene dispersing effect is improved; when the master batch is in use, the graphene is uniformly and slowly released into the resin along with the decomposition of the foaming agent, the graphene dispersing effect is improved, and porous resin microspheres are prevented from agglomerating again during fusion of the matrix resin.

Description

technical field [0001] The invention relates to the field of material processing, in particular to a low energy consumption and large-scale method for preparing graphene-filled masterbatch. 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, absorbing only 2.3 ...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08L25/06C08L29/04C08K3/04C08J9/04C08J3/12
Inventor 陈庆昝航
Owner 济宁三荷塑料制品有限公司
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