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Preparation method of carbon nanotube-graphene oxide mixed reinforced composite material

A technology for reinforcing composite materials and carbon nanotubes, applied in chemical instruments and methods, materials for heat exchange, etc., can solve the problems of structural regulation, difficult to fully infiltrate the resin matrix, poor self-sustainability of graphene reinforcements, etc. The effect of simple equipment and convenient process operation

Active Publication Date: 2016-12-07
淮安航空产业研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the development of nano-carbon composite materials is changing with each passing day, but there are still two problems: one is the formation and control of the three-dimensional macro-ordered carbon structure inside the nano-composite material; the other is the structure and properties of the nano-carbon material itself as a functional carrier. control
However, there are currently three problems: (1) functional anisotropy brought about by the one-dimensional and two-dimensional structures; (2) poor self-sustainability of carbon nanotubes or graphene reinforcements assembled by π-π interactions , which seriously affects the uniformity of the structure and performance of the composite material; (3) The carbon nanotubes and graphene produced by the chemical vapor deposition (CVD) method have strong hydrophobicity, and are not easy to be fully infiltrated by the resin matrix and form a strong interface bond

Method used

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  • Preparation method of carbon nanotube-graphene oxide mixed reinforced composite material
  • Preparation method of carbon nanotube-graphene oxide mixed reinforced composite material

Examples

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Embodiment 1

[0030] The preparation method of the carbon nanotube-graphene oxide hybrid reinforced composite material of this embodiment is carried out according to the following steps:

[0031] (1) Ultrasonic disperse 0.5g graphene oxide in 2000ml water for 40 minutes to obtain a 0.25mg / ml graphene oxide dispersion;

[0032] (2) The graphene oxide dispersion obtained in step (1) is heated up to 40 o C, add 0.5g of 2-ethyl-4-methylimidazole, then ultrasonically disperse for 1 hour, add 0.5g of multi-walled carbon nanotubes, add 1ml of ammonia water after ultrasonically dispersing for 2 hours, and heat up to 90 o C, hydrothermal reaction for 7 hours;

[0033] (3) The reaction product obtained in step (2) was freeze-dried with liquid nitrogen for 14 hours, and then dried at 105°C for 2 hours to obtain a three-dimensional multi-walled carbon nanotube-graphene oxide hybrid reinforcement. The scanning electron microscope picture is as follows figure 1 shown, from figure 1 It can be seen that...

Embodiment 2

[0036] The preparation method of the carbon nanotube-graphene oxide hybrid reinforced composite material of this embodiment is carried out according to the following steps:

[0037] (1) Ultrasonic disperse 1 g of graphene oxide in 2000 ml of water for 60 minutes to obtain a 0.5 mg / ml graphene oxide dispersion;

[0038] (2) The graphene oxide dispersion obtained in step (1) is heated up to 45 o C, add 1g of 2-ethyl-4-methylimidazole, then ultrasonically disperse for 1 hour, add 1g of carboxy-modified multi-walled carbon nanotubes, add 2ml of ammonia water after ultrasonically dispersing for 2 hours, and heat up to 90 o C, hydrothermal reaction for 10 hours;

[0039](3) The reaction product obtained in step (2) was subjected to liquid nitrogen freeze-drying treatment for 14 hours, and then dried at 105°C for 2 hours to obtain a three-dimensional carboxyl-modified multi-walled carbon nanotube-graphene oxide hybrid reinforcement;

[0040] (4) Forming by vacuum-assisted resin tra...

Embodiment 3

[0042] The preparation method of the carbon nanotube-graphene oxide hybrid reinforced composite material of this embodiment is carried out according to the following steps:

[0043] (1) Ultrasonic disperse 2g of graphene oxide in 2000ml of water for 50 minutes to obtain a 1mg / ml graphene oxide dispersion;

[0044] (2) The graphene oxide dispersion obtained in step (1) is heated up to 42 o C, add 1g of 2-ethyl-4-methylimidazole, then ultrasonically disperse for 1 hour, add 1g of hydroxyl-modified multi-walled carbon nanotubes, add 1ml of ammonia water after ultrasonically dispersing for 2 hours, and heat up to 85 o C, hydrothermal reaction for 8 hours;

[0045] (3) The reaction product obtained in step (2) was subjected to liquid nitrogen freeze-drying treatment for 13 hours, and then dried at 105°C for 2 hours to obtain a three-dimensional hydroxyl-modified multi-walled carbon nanotube-graphene oxide hybrid reinforcement;

[0046] (4) Forming by resin film infiltration proce...

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Abstract

The invention belongs to the field of polymer matrix composite manufacturing, and particularly relates to a preparation method of a carbon nanotube-graphene oxide mixed reinforced composite material. Graphene oxide and carbon naotubes are assembled into a nano-carbon mixed structure reinforcement with the high self-supporting property, and after resin matrix infiltration and polymerization, the carbon nanotube-graphene oxide mixed reinforced composite material is obtained; the porous carbon nanotube-graphene oxide reinforcement with the low density and the high specific surface area is prepared by taking 2-ethyl-4-methylimidazole as a bridge between the nanotubes and graphene oxide, and the reinforcement retains the respective characteristics of graphene oxide and the carbon nanotubes and is composited with multiple resin matrixes by serving as three-dimensional macroscopic continuous reinforcement with the high electricity conductivity and thermal conductivity, and then the multifunctional low-cost carbon nanotube-graphene oxide mixed reinforced composite material is prepared.

Description

technical field [0001] The invention belongs to the field of polymer-based composite material manufacturing, and in particular relates to a method for preparing a carbon nanotube-graphene oxide hybrid reinforced composite material. Background technique [0002] In recent years, the rapid development of science and technology has put forward higher requirements for polymer-based composite materials. New composite materials that integrate structural functions such as load bearing, electrical conductivity, and heat conduction are increasingly favored by people. Some new micro-nano-scale reinforcements are used. Introduced into various thermoplastic and thermosetting resin matrices, by building a multi-level macroscopic continuous structure, the performance of polymer-based composite materials is greatly improved, and its application range is further broadened. Nanocarbon materials represented by carbon nanotubes and graphene have attracted much attention in the fields of new en...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L79/04C08K9/00C08K9/04C08K7/24C08K3/04C09K5/14
CPCC09K5/14C08K3/04C08K7/24C08K9/00C08K9/04C08K2201/001C08K2201/011C08L63/00C08L79/04
Inventor 王柏臣李俊杰刘永娜高禹李伟马克明
Owner 淮安航空产业研究院有限公司
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