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Preparation method of carbon nanotube-graphene oxide reinforced polymer matrix composite

A technology of carbon nanotubes and composite materials, which is applied in the field of preparation of carbon nanotubes-graphene oxide reinforced polymer-based composite materials, which can solve the structural damage of nano-carbon materials, restrict the performance of nano-carbon materials, and the interface resistance cannot be ignored. problem, to achieve the effect of controllable structure and performance, low cost and simple equipment

Inactive Publication Date: 2017-11-10
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The techniques for preparing nano-carbon composites mainly include melt blending, solution blending and in-situ polymerization. Under the action of ultrasound or mechanical shear, carbon nanotubes or graphene are disentangled and dispersed in the resin matrix. The diameter ratio (aspect ratio) and the strong π-π interaction make nano-carbon materials easy to produce secondary agglomeration and stacking, which seriously restricts the full performance of nano-carbon materials.
Moreover, carbon nanotubes and graphene, which are currently produced by chemical vapor deposition (CVD) methods, are highly hydrophobic and chemically inert, and are difficult to be fully infiltrated by the resin matrix.
Treating nano-carbon materials with physical or chemical methods can effectively improve their compatibility and dispersion in the resin matrix, but the resulting damage to the bulk structure of nano-carbon materials and interfacial resistance cannot be ignored.

Method used

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  • Preparation method of carbon nanotube-graphene oxide reinforced polymer matrix composite
  • Preparation method of carbon nanotube-graphene oxide reinforced polymer matrix composite
  • Preparation method of carbon nanotube-graphene oxide reinforced polymer matrix composite

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Embodiment 1

[0029] The preparation method of the carbon nanotube-graphene oxide reinforced polymer-based composite material of the present embodiment is carried out according to the following steps:

[0030] (1) Ultrasonic dispersion of 2g graphene oxide in 2000ml water for 30 minutes to obtain a 1mg / ml graphene oxide dispersion;

[0031] (2) 2g of hydroxyl-modified carbon nanotubes are added to the graphene oxide dispersion obtained in step (1), and after ultrasonic dispersion for 2 hours, a carbon nanotube-graphene oxide dispersion is obtained, and hydrochloric acid is added to adjust the pH value of the dispersion system to 3 ;

[0032] (3) Take 200 grams of methyl methacrylate and 3 grams of azobisisoheptanonitrile homogeneous mixture as the oil phase, add it to the hydroxyl-modified carbon nanotube-graphene oxide dispersion liquid obtained in step (2), and ultrasonically disperse for 4 hours , get as figure 1 The shown hydroxyl-modified carbon nanotubes-graphene oxide stabilized oi...

Embodiment 2

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

[0037] (1) Ultrasonic dispersion of 2g graphene oxide in 2000ml water for 60 minutes to obtain a 1mg / ml graphene oxide dispersion;

[0038] (2) Add 1 g of carboxyl-modified carbon nanotubes to the graphene oxide dispersion obtained in step (1), and after ultrasonic dispersion for 1 hour, obtain carboxyl-modified carbon nanotube-graphene oxide dispersion, add hydrochloric acid to adjust the pH value of the dispersion system is 4;

[0039] (3) Take a homogeneous mixture of 200 grams of E-51 epoxy resin, 4 grams of 2-ethyl-4-methylimidazole and 40 ml of acetone as the oil phase, and add it to the obtained carboxyl-modified carbon nanotubes-oxidized In the graphene dispersion, ultrasonically disperse for 4 hours to obtain a carboxyl-modified carbon nanotube-graphene oxide stable oil-in-water Pi...

Embodiment 3

[0043] The preparation method of the carbon nanotube-graphene oxide reinforced polymer-based composite material of the present embodiment is carried out according to the following steps:

[0044] (1) Ultrasonic dispersion of 1.5g graphene oxide in 2000ml water for 40 minutes to obtain a 0.75mg / ml graphene oxide dispersion;

[0045] (2) Add 0.5 g of amino-modified carbon nanotubes to the graphene oxide dispersion obtained in step (1), and after ultrasonic dispersion for 1.5 hours, obtain the amino-modified carbon nanotube-graphene oxide dispersion, add acetic acid to adjust the pH of the dispersion system value is 4;

[0046] (3) Mix 50 grams of methyl methacrylate, 3 grams of dimethylolpropionic acid and 150 milliliters of acetone, raise the temperature to 50°C and stir for 40 minutes, then cool down to room temperature, add 40 grams of E-51 epoxy resin and 0.8 grams of 2-ethyl-4-methylimidazole mixture, after stirring evenly, is added to the amino-modified carbon nanotube-gr...

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Abstract

The invention belongs to the field of nano composite material, and in particular relates to a preparation method of a carbon nano tube-graphene oxide reinforced polymer matrix composite material. The invention uses interaction of hydrophobic pi-pi to assembly hydrophilic graphene oxide and a carbon nano tube into an amphipathic controllable Pickering system stabilizer; under the driving in the reduction of interface free energy, the carbon nano tube-graphene oxide hybrid material aggregates in an active monomer / water interface to form a stable oil-in-water emulsion system; the nano carbon hybrid structure assembled from the carbon nano tube and graphene oxide coats on the surface of active monomer droplets, and polymerization and compression molding are conducted to obtain the carbon nano tube-graphene oxide hybrid reinforced polymer matrix composite material.

Description

technical field [0001] The invention belongs to the field of nanocomposite materials, in particular to a method for preparing a carbon nanotube-graphene oxide reinforced polymer-based composite material. Background technique [0002] Polymer-based composite materials are materials with novel properties that are compounded by two or more components with complementary properties through a certain molding process. Among them, the resin matrix as the continuous phase bears the role of transmitting load to the reinforcement. , and the structure formed by reinforcements with specific functions determines the performance of composite materials to a large extent. Therefore, constructing multi-component, multi-scale, and multi-level structures has become the main design idea for developing new structural-functional composite materials. Carbon nanomaterials represented by carbon nanotubes and graphene have huge specific surface area, excellent mechanical properties, electrical and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/14C08F220/18C08F222/14C08F212/08C08F212/36C08F2/44C08F2/22C08K9/00C08K9/04C08K7/24C08K3/04C08L63/00C08L33/12C08L33/08
CPCC08F2/22C08F2/44C08F120/14C08F212/08C08F220/18C08F220/1804C08K3/04C08K7/24C08K9/00C08K9/04C08K2201/003C08K2201/006C08K2201/011C08L33/08C08L33/12C08L63/00C08L25/08C08F212/36C08F222/102
Inventor 王柏臣刘永娜李俊杰高禹李伟马克明
Owner SHENYANG AEROSPACE UNIVERSITY