A kind of preparation method of nano-carbon fiber special for epoxy resin composite conductive material

A nano-carbon fiber, composite conductive technology, applied in the chemical characteristics of fibers, textiles and papermaking, etc., can solve the problems of difficult to achieve dispersion, complex operation, poor compatibility of polymer matrix, reduce carrier gas and high temperature conditions, and simplify the process. , the effect of reducing costs

Active Publication Date: 2019-05-21
广西富勒星科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is aimed at the problems of energy consumption, complex operation and high cost in the preparation of carbon nanofibers by the traditional vapor phase growth method, and the prepared carbon nanofibers are easily entangled with each other and aggregated into agglomerates. It is difficult to achieve good dispersion and poor compatibility with the polymer matrix, which leads to the defect that the mechanical properties and electrical conductivity of the final composite polymer conductive material are greatly reduced. A preparation method of carbon nanofibers for epoxy resin composite conductive materials is provided.

Method used

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  • A kind of preparation method of nano-carbon fiber special for epoxy resin composite conductive material

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example 1

[0026] In parts by weight, 50 parts of potassium nitrate, 70 parts of calcium nitrate, 10 parts of ammonium phosphate, 25 parts of magnesium sulfate, 10 parts of ferric chloride and 300 parts of deionized water were weighed to obtain a hydroponic nutrient solution, and the plant height was selected as The 10cm cress is immersed in the hydroponic nutrient solution and cultivated for 15 days until a large number of white root hairs grow from the root of the cress, and the pretreated cress is obtained; the cobalt ion concentration is 500mg / L, and the iron ion concentration is 400mg / L. For the metal salt solution, inject the metal salt solution into a culture tank with an aeration device at the bottom and a size of 10m×10m×0.5m, take a polystyrene foam board with a side length of 1m, and use a puncher to spread the water evenly on the surface of the foam board. Make 25 holes with a diameter of 3 cm, and then pass the root hairs of the above-mentioned pretreated cress through the ho...

example 2

[0028] In parts by weight, 55 parts of potassium nitrate, 73 parts of calcium nitrate, 13 parts of ammonium phosphate, 28 parts of magnesium sulfate, 13 parts of ferric chloride and 350 parts of deionized water were weighed to obtain a hydroponic nutrient solution, and the plant height was selected as The 13cm cress is immersed in the hydroponic nutrient solution and cultured for 18 days, until a large number of white root hairs grow from the root of the cress, and the pretreated cress is obtained; the cobalt ion concentration is 650mg / L, and the iron ion concentration is 500mg / L. For the metal salt solution, inject the metal salt solution into a culture tank with an aeration device at the bottom and a size of 10m×10m×0.5m, take a polystyrene foam board with a side length of 1m, and use a puncher to spread the water evenly on the surface of the foam board. Make 28 holes with a diameter of 4cm, and then pass the root hairs of the above-mentioned pretreated cress through the hole...

example 3

[0030] In parts by weight, 60 parts of potassium nitrate, 75 parts of calcium nitrate, 15 parts of ammonium phosphate, 30 parts of magnesium sulfate, 15 parts of ferric chloride and 400 parts of deionized water were weighed to obtain a hydroponic nutrient solution, and the plant height was selected as The 15cm cress is immersed in the hydroponic nutrient solution and cultivated for 20 days until a large number of white root hairs grow from the root of the cress, and the pretreated cress is obtained; a mixture with a cobalt ion concentration of 800mg / L and an iron ion concentration of 600mg / L is prepared. For the metal salt solution, inject the metal salt solution into a culture tank with an aeration device at the bottom and a size of 10m×10m×0.5m, take a polystyrene foam board with a side length of 1m, and use a puncher to spread the water evenly on the surface of the foam board. Make 30 holes with a diameter of 5 cm, and then pass the root hairs of the above-mentioned pretreat...

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Abstract

The invention relates to a method for preparing a special nanometer carbon fiber for an epoxy resin composite conductive material and belongs to the technical field of conductive material preparation.The method comprises culturing water fennel to obtain a large amount of roots with excellent adsorption effects, putting the water fennel into a metal salt solution with a citric acid solution, carrying out water planting to convert inorganic transition metal ions into organic metal ions through metabolism of water fennel so that water fennel roots gathering transition metal ions are obtained, mixing the water fennel roots gathering transition metal ions and anhydrous methanol to obtain carbon fuel, carrying out combustion at the normal temperature through a clean glass plate as a nanometer carbon fiber deposition base, scraping the nanometer carbon fibers obtained by the combustion and carrying out hydroxylation and fermentation modification to obtain the nanometer carbon fibers. The method simplifies the process of preparing the catalyst, reduces the carrier gas and high temperature conditions, reduces the cost and has a wide application prospect.

Description

technical field [0001] The invention relates to a method for preparing nano-carbon fibers special for epoxy resin composite conductive materials, and belongs to the technical field of conductive material preparation. Background technique [0002] General polymers are excellent electrical insulators. Conductive polymer materials are divided into two categories: structural type and composite type. Structural conductive polymer is organic polymer doped polyacetylene, which has a metal-like conductivity. The composite conductive polymer material refers to the polymer as the matrix, which is composed of various conductive substances such as carbon black, graphite or metal powder through dispersion compounding, layering compounding or forming a surface conductive film. Composite conductive polymers usually use epoxy resin with suitable physical properties, mixed with ultrafine metals, metal oxides, carbon black, graphite, etc. Wait. This type of polymer material is still metal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/00C08K7/06C08L63/00D01F9/16
CPCC08K7/06C08K9/00C08K2201/001C08K2201/011D01F9/16C08L63/00
Inventor 李巧珍张晶
Owner 广西富勒星科技有限责任公司
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