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Preparation of graphene supported fullerene hybrid and polymer flame retardation application

A fullerene and graphene technology, applied in the field of preparation of graphene hybrid materials, can solve the problems of difficulty in obtaining uniformly dispersed nanoparticles, decreased mechanical properties of composite materials, weak interfacial interaction, etc., and achieves wide application prospects, The effect of easy operation and excellent mechanical properties

Inactive Publication Date: 2017-03-29
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since C 60 Strong agglomeration between and C 60 Low solubility in common organic solvents such as ethanol and acetone, it is difficult to obtain uniform dispersion of C in polymers 60 nanoparticles
In addition, as an inorganic filler, unmodified C 60 The interface interaction with the polymer is weak, resulting in a decrease in the mechanical properties of the composite
Therefore, C 60 Applications as nanofillers in polymer blends are technically limited

Method used

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  • Preparation of graphene supported fullerene hybrid and polymer flame retardation application
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  • Preparation of graphene supported fullerene hybrid and polymer flame retardation application

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Implementation example 1, the preparation of fullerene loaded graphene / polyurethane rigid plastic foam

[0033] (1), preparation of fullerene-supported graphene hybrid materials

[0034] a, 50 mg GO was dissolved in 500 ml water, and ultrasonically dispersed until it turned yellow and transparent.

[0035] b. Add 200 mg polyethyleneimine to the above solution, and ultrasonically disperse for 30 minutes after flocs appear.

[0036] c. Heat and stir the mixed solution in a 60°C oil bath for 12 hours. After taking out the solution that turned black, it was centrifuged, washed 5 times with ethanol, and dried under vacuum at 60 °C. Amine-modified graphene is obtained.

[0037] d. Dissolve 150mg of amine-modified graphene in 300ml of DMSO and ultrasonically disperse for 30min.

[0038] e. Take out 300 mg of amine-modified graphene and dissolve it in 350 ml of DMSO-toluene mixed solution (4:3, v / v), and disperse ultrasonically until a purple transparent solution is formed ...

Embodiment 2

[0045] Implementation example 2, the preparation of fullerene loaded graphene / epoxy resin composite

[0046] The fullerene-supported graphene hybrid material was prepared as in step (1) in Example 1.

[0047] The preparation of fullerene-loaded graphene / epoxy resin composites was as follows: 1 g fullerene, 1 g amine-modified graphene and different masses (0.4, 0.6, 0.8 and 1 g) of fullerene-loaded graphene were added to the 100g bisphenol A glycidyl ether ethanol solution, ultrasonic 30min to form a uniform solution. The mixture was heated at 120°C to remove the solvent, and after no obvious bubbles escaped, it was moved into a vacuum oven at 60°C for 30 minutes to be vacuumed. After taking it out, add 23.4g of curing agent diethyltoluenediamine, and vacuum defoam after stirring. After taking it out, pour the mixed liquid into a U-shaped mold preheated at 100°C, put the mold into an oven, and control the curing temperature as follows: 120°C for 1h, 180°C for 2.5h and 190°C f...

Embodiment 3

[0049] Implementation example 3, the preparation of fullerene loaded graphene / unsaturated resin composite material

[0050] The fullerene-supported graphene hybrid material was prepared as in step (1) in Example 1.

[0051] The preparation of fullerene-loaded graphene / unsaturated resin composites is as follows: ultrasonically disperse 1 g of fullerene, 1 g of amine-modified graphene, and 1 g of fullerene-loaded graphene in 30 g of styrene solution to form a uniform Add 0.8g of cobalt naphthenate, 1g of methyl ethyl ketone peroxide and 100g of unsaturated resin to the solution at one time, stir well and pour it into the mold immediately, leave it at room temperature for 8h, and post-cure in an oven at 80°C for 24h.

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Abstract

The invention discloses a preparation method of a graphene supported fullerene hybrid material and an application of the hybrid material in polymer flame retardation. Through amine compounds, fullerene is load on the surface of graphene oxide through chemical bonds to prepare the graphene supported fullerene hybrid material. At the same time, the hybrid material is compounded with polymers through solution blending and direct blending; the flame retardant performance of polymers is obviously enhanced by the sheet obstruction effect and enhancing effect of graphite and the free radical absorption effect of fullerene; and the mechanical properties of polymers are strengthened at the same time.

Description

technical field [0001] The invention relates to a preparation method of a graphene hybrid material, in particular to a preparation method of a polymer / hybrid graphene nanocomposite material and its application in the field of flame retardancy. Background technique [0002] Polymers are widely used in various fields due to their light weight, high strength and excellent process characteristics. However, due to the chemical composition and molecular structure of the polymer matrix itself, it is flammable and combustible. It burns quickly and is not easy to extinguish, and will produce Thick smoke and toxic gases pollute the environment and endanger people's lives. Therefore, it is very important to expand the application of composite materials to improve the fire safety of polymer-based composite materials. [0003] Nanoparticles for polymer composites, such as carbon nanotubes (CNTs) and layered clays, have attracted more and more attention in academic research and industrial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K9/04C08K3/04C08L75/08C08L63/00C08L67/06
CPCC08K3/04C08K9/04C08K9/12C08L75/08C08L63/00C08L67/06
Inventor 王睿吴立新郑幼丹王浩鹏
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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