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Preparation method of shell-core structure composite material of nano carbon material coated metal compound

A technology of nano-carbon materials and metal compounds, applied in the field of material processing, can solve the problems of low performance of hybrid composite materials and achieve the effect of firm combination

Active Publication Date: 2020-09-01
NINGXIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the random disorder distribution between hybrid reinforcements and the limitation of reinforcement addition content, the performance of hybrid composites is significantly improved below the expected target.

Method used

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  • Preparation method of shell-core structure composite material of nano carbon material coated metal compound
  • Preparation method of shell-core structure composite material of nano carbon material coated metal compound
  • Preparation method of shell-core structure composite material of nano carbon material coated metal compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 Shown: the preparation has a certain amount of nano-scale MgO, Al2O3, CNTs mixed solution. Weigh 0.162g of MgO, 0.102g of Al2O3, 0.049g of acidified CNTs, and 0.15g of urea. Add deionized water and mix to prepare 50ml of mixed solution, sonicate for 10min, and transfer to a 100ml polytetrafluoroethylene-lined container.

[0034] The mixture was placed in a hydrothermal reaction kettle, heated at 120°C for 12 hours, cooled with the furnace, and then taken out. After centrifugation and washing, 6000r / min, centrifugation for 5min, pour off the supernatant, keep the black solid in the lower layer, wash 3 times, transfer to a petri dish and dry at 60°C for 4h, you can get CNTs / LDH coated MgO, CNTs / LDH Coated Al2O3 composite material.

Embodiment 2

[0036] Prepare a mixed solution with a certain amount of micron MgO, aluminum nitrate and CNTs. Weigh 0.162g of MgO, 0.750g of aluminum nitrate nonahydrate, 0.049g of acidified CNTs, 0.2g of sodium carbonate, and 0.2g of sodium hydroxide. Add deionized water and mix to prepare 50ml of mixed solution, sonicate for 10min, and transfer to a 100ml polytetrafluoroethylene-lined container.

[0037] Place the mixed solution in a hydrothermal reaction kettle, heat it at 140°C for 16 hours, take it out after cooling in the furnace, and wash it by centrifugation at 8000r / min for 5 minutes, pour off the supernatant, keep the black solid in the lower layer, wash 3 times, and transfer to The CNTs / LDH-coated MgO composite was obtained by drying in a petri dish at 80°C for 4 hours.

Embodiment 3

[0039] Prepare a mixed solution of AlN, GO and magnesium nitrate with a certain amount of nanometer. Weigh AlN, 0.592g of magnesium nitrate, 0.05g of GO, 0.25g of ammonia water, and 0.2g of sodium chloride. Add deionized water and mix to prepare 50ml of mixed solution, sonicate for 10min, and transfer to a 100ml polytetrafluoroethylene-lined container.

[0040] The mixed solution was placed in a hydrothermal reaction kettle, heated at 130°C for 16 hours, and then taken out after cooling with the furnace to realize the in-situ growth of CNTs / LDH.

[0041] After centrifugation and washing at 8000r / min, centrifuge for 5min, pour off the supernatant, keep the black solid in the lower layer, wash 3 times, transfer to a petri dish and dry at 60°C for 4h, then the CNTs / LDH coated AlN composite material can be obtained.

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Abstract

The invention discloses a preparation method of a shell-core structure composite material of a nano carbon material coated metal compound. The preparation method comprises the following steps: under an alkaline condition, preparing a hydrothermal solution from any two of a divalent metal-containing compound, a trivalent metal-containing compound and a divalent or trivalent metal ion-containing metal salt solution, a nano carbon material and deionized water according to a certain ratio; and carrying out hydrothermal reaction, filtering or centrifugally separating a product, and taking a lower-layer black solid to obtain the shell-core structure composite material of the nano carbon material coated metal compound. The prepared composite material can be applied to the fields of metal matrix composite materials, polymer composite materials, energy storage, adsorbents, anion exchangers, catalysts, anticorrosive agents and the like.

Description

technical field [0001] The invention belongs to the technical field of material processing, and in particular relates to a method for preparing a shell-core structure composite material in which a nano-carbon material is coated with a metal compound. Background technique [0002] There are many kinds of carbon nanomaterials with excellent performance, and they are outstanding in various fields. Such as carbon nanotubes (CNTs), graphene (Gr), graphene oxide (GO), reduced graphene oxide (RGO) and so on. CNTs is a one-dimensional nanomaterial with a special structure. Its radial dimension can reach nanometer level, and its axial dimension is micron level. It has high strength, elastic modulus, thermal conductivity and other excellent properties. , electricity, optics and electrochemistry have potential applications. When used as a composite material reinforcement, it exhibits good strength, elasticity, fatigue resistance and isotropy. Gr is a two-dimensional honeycomb materi...

Claims

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Application Information

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IPC IPC(8): B01J13/22C22C1/05C22C1/10B22F9/04B22F3/10
CPCB01J13/22C22C1/051B22F9/04B22F3/1035B22F2009/043B22F2999/00B22F2201/11
Inventor 李普博王永勋李彦琪高忙忙梁森刘宽冠
Owner NINGXIA UNIVERSITY
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