A kind of preparation method of carbon nanotube composite resin microspheres

A carbon nanotube composite and resin microsphere technology, applied in the field of composite materials, can solve the problems of cumbersome experimental operation and low industrialization feasibility, and achieve the effects of simple process, optimized industrialization prospect, and environmental protection.

Active Publication Date: 2020-01-14
昆山昆鹏利杰高分子材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a variety of organic solvents and dispersants are involved, and the dropping rate of the resin solution needs to be controlled during the reaction process. The experimental operation is relatively cumbersome, and the industrialization feasibility is low.

Method used

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  • A kind of preparation method of carbon nanotube composite resin microspheres
  • A kind of preparation method of carbon nanotube composite resin microspheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of carbon nanotube composite resin microspheres (each material is added according to the mass proportion, the same below), its specific steps are as follows:

[0029] Doped compounding with CNTs arranged in an array and without surface modification functional groups,

[0030] Mix 1 part of carbon nanotubes, 10 parts of sodium lauryl sulfate, and 1000 parts of liquid alkane, stir and disperse the above mixture at a stirring rate of 1000 r / min for 20 minutes, and then let the obtained dispersion solution stand for 5 hours for later use. Mix the above dispersion solution with 1000 parts of resole phenolic resin, the viscosity of the mixture is 1-300mPa·s, stir at a stirring rate of 1600r / min at room temperature, and heat to 150°C, react for 50min; wait for the microspheres After molding, add 1 part of citric acid monohydrate, react at constant temperature for 25 minutes, then separate solid and liquid, filter out the microsphere particles from the syst...

Embodiment 2

[0032] A kind of preparation method of carbon nanotube composite resin microsphere, its specific steps are as follows:

[0033] Use CNTs in a non-array arrangement and without surface modification functional groups for doping and compounding, adjust the proportion of each raw material, change the reaction temperature and stirring speed,

[0034] Mix 3 parts of carbon nanotubes, 10 parts of sodium lauryl sulfate, and 1000 parts of silicone oil, stir and disperse the above mixture at a stirring rate of 800r / min for 30min, and then let the obtained dispersion solution stand for 7h for later use. Mix the above dispersion solution with 10 parts of resole phenolic resin, the viscosity of the mixture is 1-300mPa·s, stir at a stirring rate of 400r / min at room temperature, and heat to 120°C, react for 30min; wait for the microspheres After forming, add 1 part of oxalic acid, react at constant temperature for 60 minutes, then separate the solid and liquid, filter out the microsphere par...

Embodiment 3

[0036] A kind of preparation method of carbon nanotube composite resin microsphere, its concrete steps are as follows:

[0037] Use CNTs in a non-array arrangement and without surface modification functional groups for doping and compounding, adjust the proportion of each raw material, change the reaction temperature and stirring speed,

[0038]Mix 3 parts of carbon nanotubes, 10 parts of sodium lauryl sulfate, and 500 parts of liquid paraffin, stir and disperse the above mixture at a stirring rate of 600r / min for 40min, and then let the obtained dispersion solution stand for 7h for later use. Mix the above dispersion solution with 100 parts of resole phenolic resin, the viscosity of the mixture is 1-300mPa·s, stir at a stirring rate of 400r / min at room temperature, and heat to 130°C, react for 45min; wait for the microspheres After forming, add 1 part of hydrochloric acid, react at constant temperature for 45 minutes, then separate solid and liquid, filter out the microsphere...

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Abstract

The invention provides a preparation method of carbon nanotube composite resin microspheres. The method comprises the following steps: mixing an organic solvent, lauryl sodium sulfate and a composite carbon material according to the ratio of (100-3000):(0.1-10):(0.1-10), and dispersing for some time for later use; mixing the obtained solution with resol, stirring and heating for some time until the microspheres are formed, adding an acidic material, keeping the temperature for some time, carrying out solid-liquid separation after the reaction finishes, filtering microsphere particles out of the system, recovering the organic solvent, and carrying out hot water washing and drying on the microsphere particles to finally obtain the finished composite resin microspheres. By using the emulsion process to prepare the microspheres, the method has the advantages of simple technique, single raw material species, mild reaction conditions, low loss, high feasibility, controllable microsphere size and favorable microsphere shape, and has wide industrialization prospects.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a preparation method of carbon nanotube composite resin microspheres. Background technique [0002] As a one-dimensional linear material with a special structure, carbon nanotubes (CNTs) exhibit excellent mechanical, electrical and thermal properties, making them often used as composite materials to enhance the performance of polymers. Different from the one-dimensional structure of carbon nanotubes, three-dimensional carbon nanotubes have attracted much attention because of their unique spatial network—a new type of aggregated structure. Because carbon nanotubes are easy to agglomerate and pile up, it is difficult to disperse uniformly, so adding CNTs to polymer materials by microsphere method has gradually become an effective means of dispersing and reducing agglomerated CNTs. The microsphere functional material compounded by carbon nanotubes not only maintains the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/12C08L61/06C08K13/04C08K7/24C08K5/41C08K3/04
CPCC08J3/12C08J2361/06C08K3/04C08K5/41C08K7/24C08K13/04C08K2201/011C08L61/06
Inventor 王安苗徐婷婷刘杰万青李伟王然
Owner 昆山昆鹏利杰高分子材料技术有限公司
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