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Polymer/inorganic nano particle/graphite nano micro-flake three-phase composite material and preparation method thereof

A technology of inorganic nanoparticles and nanocomposites, which is applied in the field of preparation of graphite composite materials, can solve the problems of uneven dispersion and achieve the effects of solving agglomeration, low cost and facilitating industrial production

Inactive Publication Date: 2008-01-30
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of uneven dispersion of expanded graphite in the composite material, and provide a composite material composed of graphite nanoplatelets, polymers and inorganic nanoparticles and a preparation method thereof

Method used

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  • Polymer/inorganic nano particle/graphite nano micro-flake three-phase composite material and preparation method thereof
  • Polymer/inorganic nano particle/graphite nano micro-flake three-phase composite material and preparation method thereof
  • Polymer/inorganic nano particle/graphite nano micro-flake three-phase composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: First ultrasonically treat expanded graphite in 70% alcohol solution for 15h, filter and wash to obtain graphite nano-chip powder, which is vacuum-dried at room temperature for 20h for later use; 100 parts of methyl methacrylate ester (MMA) and 0.01 parts of cetyltrimethylammonium bromide dissolved in 100 parts of chloroform (CHCl 3 ), and then add 400 parts of Ni(NO 3 ) 2 Aqueous solution, ultrasonic dispersion at room temperature for 13 minutes; then add 0.05 parts of graphite nanoplatelets (NanoG), ultrasonic at room temperature for 13 minutes, then add 480 parts of 0.2mol / L NaOH solution as a precipitant, and ultrasonic at room temperature Process 30 minutes; Finally add 5 parts of azobisisobutyronitrile (AIBN) as initiator, in N 2 Under protection, react at 60°C for 3 hours, filter and wash to obtain polymethyl methacrylate / Ni(OH) 2 / Graphite nanoplatelet (NanoG) three-phase nanocomposite material The SEM photos, TEM photos and TG curves of the com...

Embodiment 2

[0041] Example 2, first ultrasonically treat expanded graphite in 75% alcohol solution for 20h, filter and wash to obtain graphite nano-chip powder, which is vacuum-dried at room temperature for 25h for later use; 100 parts of methyl acrylate and 0.05 Parts of sodium lauryl sulfate are dissolved in 110 parts of N, N-dimethylformamide, and 600 parts of 0.1mol / L EuCl are added thereto 3 aqueous solution, and ultrasonically disperse at room temperature for 14 minutes; then add 0.1 parts of graphite nanoplatelets (NanoG), and then ultrasonicate at room temperature for 14 minutes, then add 480 parts of 0.2 mol / L NaOH solution, and ultrasonically treat at room temperature for 32 Minutes; finally add 5.5 parts of azobisisobutyronitrile (AIBN) as initiator, in N 2 Under protection, react at 65°C for 4 hours, filter and wash to obtain polymethylacrylate / Eu(OH) 3 / Graphite nanoplatelets (NanoG) three-phase nanocomposites. The SEM photo and TEM photo TG curve of the composite material...

Embodiment 3

[0042] Example 3, first ultrasonically treat expanded graphite in 80% alcohol solution for 25h, filter and wash to obtain graphite nano-chip powder, which is vacuum-dried at room temperature for 30h for later use; 100 parts of aniline and 0.1 part Sodium stearate is dissolved in 110 parts of N-dimethylacetamide, and 800 parts of 0.1mol / L EuCl are added thereto 3 aqueous solution, and ultrasonically disperse at room temperature for 15 minutes; then add 0.5 parts of graphite nanoplatelets (NanoG), ultrasonically for 15 minutes, then add 500 parts of 0.2mol / L NaOH solution, and ultrasonically treat for 35 minutes; finally add 6 parts of graphite Ammonium sulfate is used as the initiator, react at 20°C for 5 hours, filter and wash to obtain polyaniline / Eu(OH) 3 / Graphite nanoplatelets (NanoG) three-phase nanocomposites. The SEM photo and TEM photo TG curve of the composite material are basically the same as those in Example 1.

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Abstract

The invention discloses a polymer / inorganic nanometer particle / graphite nanometer chip nanometer composite material and processing method. The method comprises the following steps: ultrasonic processing the expanded graphite in the ethanol aqueous solution to make graphite nanometer thin slice, using the polymer as oil phase, inorganic ion aqueous solution as aqueous phase, making inorganic nanometer particle with reactor made by surface active agent, dispersing the nanometer particle into oil phase, homogeneous mixing the system with graphite nanometer chip, carrying out bulk polymerization, and getting the polymer / inorganic nanometer particle / graphite nanometer chip nanometer composite material and processing method. The invention makes the polymer and composite material at the same time, so the method simplifies the preparing procedure, shortens the response time, improves the productive efficiency, reduces the cost, and facilitates industrial production. The composite material possesses excellent property.

Description

technical field [0001] The invention relates to a preparation method of a graphite composite material, in particular to a composite material composed of graphite nano-chips, polymers and inorganic nanoparticles and a preparation method thereof. Background technique [0002] Graphite material, due to its abundant resources, low cost, and stable properties, is widely used as a filler for conductive polymer composites. Generally speaking, the higher the filler content, the better the electrical conductivity of the composite material, but the mechanical properties of the material will also deteriorate, especially the brittleness of the material will increase. One avenue to improve performance is to fill polymer composites with ultrafine inorganic compounds. Although this method can improve its dimensional stability and rigidity, it is difficult to obtain uniform dispersion of the filler at the nanometer level by using the traditional blending method; , the existing interface m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/08C08F2/44C08F2/24C08F20/10C08K9/00C08K3/04
Inventor 莫尊理孙银霞陈红刘艳芝左丹丹张平
Owner NORTHWEST NORMAL UNIVERSITY