Conductive high-molecular composite material with dendritic cellular structure, and preparation method thereof

A conductive polymer and composite material technology, applied in the field of conductive polymer composite materials, can solve problems such as hindering popularization and application, strong polymer selectivity, complex operation process, etc., and achieve easy popularization and application, stable electrical performance, and wide sources Effect

Active Publication Date: 2015-08-26
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inherent disadvantages of these methods, such as high cost, low efficiency, complex operation process, and strong selectivity to polymers, hinder their promotion and application in polymer material processing.

Method used

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  • Conductive high-molecular composite material with dendritic cellular structure, and preparation method thereof
  • Conductive high-molecular composite material with dendritic cellular structure, and preparation method thereof

Examples

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preparation example Construction

[0043] The second technical problem to be solved in the present invention is to provide the preparation method of the above-mentioned conductive polymer composite material, the steps include:

[0044] a. Preparation of the mixed solution: dissolving and mixing the thermoplastic elastomer material, thermosetting resin, curing agent and conductive particles in a solvent to obtain a mixed solution;

[0045] b. Freeze-drying: the mixed solution obtained in step a is freeze-dried to obtain the conductive polymer composite material;

[0046] Wherein, the solvent is at least one of dioxane, water, acetone, toluene, xylene, tetrahydrofuran, dimethylformamide, methanol, ethanol, formic acid or methylene chloride; the amount of solvent is: per weight 20-100ml of solvent is added to one part of raw materials, namely thermoplastic elastomer material, thermosetting resin, curing agent and conductive particles.

[0047] Further, in the preparation method of the above-mentioned conductive c...

Embodiment 1

[0056] Example 1 Preparation of Conductive Polymer Composite Material with Dendritic Cell Structure

[0057] Concrete preparation steps are:

[0058] (1) Drying of raw materials: Dry TPU and MWCNTs in a vacuum oven for 8 hours at 80°C;

[0059] (2) Preparation of mixed solution: 1.2g epoxy resin (model: epoxy resin LT5078A), 0.4g curing agent (model: curing agent LT5078B), and 0.44g MWCNTs were added to 40ml of dioxane in sequence respectively. In a 100ml beaker, stir mechanically at room temperature for about 10 minutes, then ultrasonically disperse in a water bath at room temperature for 30 minutes to obtain a mixed solution a; at the same time, mix 2.4g of TPU pellets and 40ml of dioxane in a 100ml beaker, and heat Stir, the temperature is at 50°C, stir magnetically for about 1 hour, cool to room temperature, and obtain mixed solution b; then pour mixed solution b into mixed solution a, and magnetically stir for 30 minutes to obtain the final MWCNTs / TPU / epoxy resin / Curin...

Embodiment 2-6

[0063] Example 2-6 Preparation of Conductive Polymer Composite Material with Dendritic Cell Structure

[0064] Each raw material ratio of embodiment 2-6 is as shown in table 1. The specific preparation methods are all the same as in Example 1.

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Abstract

The invention relates to the field of conductive high-molecular materials, and specifically relates to a conductive high-molecular composite material with a dendritic cellular structure. The conductive high-molecular composite material comprises the raw materials of, by weight, 1-5 parts of a thermoplastic elastomer material, 1-4 parts of thermosetting resin, 0.1-2 parts of a curing agent, and 0.01-1 part of conductive particles. The conductive high-molecular composite material has a dendritic cellular structure. The electrical performance of the high-molecular composite material is improved and stable, and the percolation threshold is low.

Description

technical field [0001] The invention belongs to the field of conductive polymer materials, and in particular relates to a conductive polymer composite material with a dendritic cell structure. Background technique [0002] Since the discovery of the first conductive polymer polyacetylene in 1977, the science of conductive polymer materials (CPCs) has been a rapidly developing field in recent years. Conductive polymer materials can be divided into structural conductive polymer materials and composite conductive polymer materials according to different structures and preparation methods. Among them, the composite conductive polymer composite material refers to a conductive filler (such as graphite, carbon black, carbon nanotubes, graphene, metal powder, metal nanowires, etc.) Polymer composite material with conductive function. It has the conductivity endowed by conductive fillers and the good processability of polymer materials. Compared with ordinary CPCs, CPCs with cell ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L63/00C08K9/04C08K7/24C08J9/28
Inventor 代坤曹晓瀚蓝艳李勇赵帅翔郑国强刘春太申长雨
Owner ZHENGZHOU UNIV
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