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Method for preparing graphene/elastic nano composite material by using solution commixing method

A nano-composite material and solution blending technology, applied in the field of nano-composite materials, can solve the problems of easy agglomeration of graphene, poor dispersion effect, and the inability of elastomers to achieve an ideal reinforcement effect, and achieve the effect of improving mechanical properties.

Active Publication Date: 2018-01-12
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It solves the disadvantages that graphene is easy to agglomerate, stack and disperse poorly in elastomer materials when preparing graphene / elastomer nanocomposites by traditional methods, and can not achieve the ideal reinforcement effect on elastomers

Method used

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  • Method for preparing graphene/elastic nano composite material by using solution commixing method
  • Method for preparing graphene/elastic nano composite material by using solution commixing method
  • Method for preparing graphene/elastic nano composite material by using solution commixing method

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Effect test

Embodiment 1

[0037] A method for preparing graphene / elastomer nanocomposites by solution blending method, the process flow chart is shown in figure 1 , including the following steps:

[0038] (1) The graphite intercalation compound is placed in a furnace at 700° C. and heated for 1 min to obtain multilayer graphite nanosheets;

[0039] (2) In a stainless steel container, immerse the multilayer graphite nanosheets in tetrahydrofuran, and sonicate for 1 hour to obtain few-layer graphene microsheets dispersed in tetrahydrofuran, wherein, during the ultrasonic process, ensure that the tetrahydrofuran temperature is ≤ 30°C;

[0040] Wherein, the average thickness of few-layer graphene microflakes is 3nm.

[0041] (3) Use a round-bottom flask equipped with a condenser as a dissolving device, immerse styrene-butadiene rubber in tetrahydrofuran solvent, heat to 85°C in an oil bath, and stir magnetically. When the styrene-butadiene rubber is completely dissolved, a uniform styrene-butadiene rubber...

Embodiment 2

[0051] A kind of solution blending method prepares the method for graphene / elastomer nanocomposite material, specifically comprises the following steps:

[0052] (1) The graphite intercalation compound is placed in a furnace at 600° C. and heated for 1.5 minutes to obtain multilayer graphite nanosheets;

[0053](2) In a stainless steel container, immerse the multilayer graphite nanosheets in tetrahydrofuran, and sonicate for 2 hours to obtain few-layer graphene microsheets dispersed in tetrahydrofuran, wherein, during the ultrasonic process, ensure that the tetrahydrofuran temperature is ≤ 30°C;

[0054] Wherein, the average thickness of few-layer graphene microflakes is 3nm.

[0055] (3) Use a round-bottomed flask equipped with a condenser as a dissolving device, immerse isoprene rubber in tetrahydrofuran solvent, heat to 30°C in a water bath, and stir magnetically. When the isoprene rubber is completely dissolved, a uniform isoprene rubber solution is obtained. ;

[0056] ...

Embodiment 3

[0061] A kind of solution blending method prepares the method for graphene / elastomer nanocomposite material, specifically comprises the following steps:

[0062] (1) The graphite intercalation compound is placed in a furnace at 900° C. and heated for 0.5 min to obtain multilayer graphite nanosheets;

[0063] (2) In a stainless steel container, immerse the multilayer graphite nanosheets in tetrahydrofuran, and sonicate for 3 hours to obtain few-layer graphene microsheets dispersed in tetrahydrofuran, wherein, during the ultrasonic process, ensure that the tetrahydrofuran temperature is ≤ 30°C;

[0064] Wherein, the average thickness of few-layer graphene microflakes is 3nm.

[0065] (3) Use a round-bottomed flask equipped with a condenser as a dissolving device, immerse butadiene rubber in tetrahydrofuran solvent, heat to 90°C in an oil bath, and stir magnetically. When the butadiene rubber is completely dissolved, a uniform butadiene rubber is obtained solution;

[0066] In ...

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Abstract

The invention discloses a method for preparing a graphene / elastic nano composite material by using a solution commixing method and belongs to the field of nano composite materials. The method comprises the following steps: (1) heating a graphite intercalation compound for 0.5-1.5 minutes at 600-900 DEG C; (2) soaking the heated graphite intercalation compound into tetrahydrofuran, and performing ultrasonic treatment; (3) treating with tetrahydrofuran as a solvent so as to obtain a uniform elastomer solution; and (4) mixing the mixtures obtained in the step (2) and (3), and performing ultrasonic treatment for 0.5-3 hours; and (5) volatilizing the solvent, performing precipitate washing with ethanol, and drying, thereby obtaining the graphene / elastic nano composite material. Compared with aconventional melting commixing method, the solution commixing method has the advantages of being low in cost, convenient to operate, simple in experiment condition and the like, and more importantly,graphene has a relatively good dispersion effect in an elastomer material, the electric and heat conductivity and the mechanical properties of the elastomer material are remarkably improved, and thusthe application range of the graphene is widened.

Description

technical field [0001] The invention relates to the technical field of nanocomposite materials, in particular to a method for preparing graphene / elastomer nanocomposite materials by a solution blending method. Background technique [0002] Although elastomers have been applied in industry because of their low manufacturing cost, large elongation and corrosion resistance, their disadvantages such as low hardness, strength, poor electrical conductivity and thermal conductivity limit their Its wide application in industry. The blending of elastomers and nanofillers is a crucial approach to address these shortcomings. [0003] Graphene is a new type of two-dimensional carbon material. Because of its extremely high Young's modulus, ultimate strength, electrical and thermal conductivity, etc., it can be used to strengthen elastomer materials, thereby expanding the scope of application of elastomer materials. Whether graphene can be uniformly dispersed in elastomer materials is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08L23/22C08L23/16C08K3/04
Inventor 孟庆实韩森森马军赵钰刘志文卢少微
Owner SHENYANG AEROSPACE UNIVERSITY
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