Preparation method of carbon-containing polymer for preparing graphene three-dimensional structure powder material

A three-dimensional structure, powder material technology, applied in the field of preparing graphene three-dimensional structure powder material carbon-containing polymer, can solve the problems of high synthesis cost, incomplete reduction, high cost, etc., and achieve stable product quality and easy removal. , the effect of easy operation

Inactive Publication Date: 2017-07-28
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Solvent stripping method: Under the action of strong ultrasound, a solvent is inserted between graphite layers to peel off, and graphene is prepared; disadvantages: the yield of preparation is very low, and it is not suitable for mass production
Disadvantages: very high processing temperature, expensive, low output, not suitable for industrial and large-scale production
The problem is that it is difficult to ensure sufficient conductivity and transparency because it adopts a structure that folds multiple tens of nanometers square pieces and cannot be completely restored.
In addition, the graphene synthesized by the above method is u

Method used

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  • Preparation method of carbon-containing polymer for preparing graphene three-dimensional structure powder material

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Embodiment 1

[0026] A method for preparing a graphene three-dimensional structure powder material carbon-containing polymer, the operation steps are as follows:

[0027] (1) Take by weighing 34.4% of polymerized monomer styrene (S), 11% of acrylic acid, 44% of acrylonitrile according to weight percentage, 4.5% of crosslinking agent monomer divinylbenzene (DVB), triallyl isocyanate ( TAIC) 4%, α-allyl itaconate 1%, initiator benzoyl peroxide (BPO) 0.4%, azodiethylbutyronitrile 0.2%, and then add cross-linking agent monomer to the polymerization monomer and the initiator monomer, fully stirred to dissolve the initiator monomer to obtain the monomer mixed phase, then add 35% porogen toluene of the gained monomer mixed phase by weight percentage, and stir evenly;

[0028] (2) Add the aqueous solution of 1.25 times of the weight of the monomer mixed phase obtained in step (1) in the reactor, and then account for 3.7% dispersant polyvinyl alcohol 2.3%, hydroxyethyl cellulose of the aqueous solut...

Embodiment 2

[0032] A method for preparing a graphene three-dimensional structure powder material carbon-containing polymer, the operation steps are as follows:

[0033] (1) Weigh 75.4% of polymerized monomer styrene (S), 6.8% of methyl acrylate, 8.2% of styrene-butadiene rubber / polystyrene / polyacrylate n-butyl acrylate prepolymer, crosslinking agent monomer iso Triallyl cyanate (TAIC) 9%, initiator benzoyl peroxide (BPO) 2.5% then add cross-linking agent monomer and initiator monomer in polymerized monomer styrene and methyl acrylate, fully stir Dissolve the initiator monomer, then add the obtained polymerized monomer styrene-butadiene rubber / polystyrene / polyacrylate n-butyl ester prepolymer, mix and stir evenly to obtain the monomer mixed phase, and then add the obtained monomer mixed phase 38% by weight porogen 200 # petrol, stir well;

[0034] (2) Add the aqueous solution of 1.25 times of the weight of the monomer mixed phase obtained in step (1) in the reaction kettle, then add the di...

Embodiment 3

[0038] A method for preparing a graphene three-dimensional structure powder material carbon-containing polymer, the operation steps are as follows: (1) take 59.2% of polymerized monomer styrene (S), polyurethane (PU) / poly n-butyl acrylic acid according to weight percentage (PBMA) prepolymer 5.5%, hydroxyethyl methacrylate (MEG) 6%, bis diurethane (OUDM) 7.8%, triisocyanate ethylene glycol 10.5%, crosslinking agent monomer two Vinylbenzene (DVB) 2.4%, triallyl isocyanate (TAIC) 3.6%, initiator benzoyl peroxide (BPO) 1.4%, azodiethylbutyronitrile 1.6%, and then polymerize monomer styrene (S), hydroxyethyl methacrylate (MEG), double diurethane (OUDM) and ethylene glycol triisocyanate, add crosslinking agent monomer and initiator monomer, stir fully to make the initiator Dissolve the monomer, then add the polyurethane (PU) / poly n-butyl acrylic acid (PBMA) prepolymer and mix and stir the gained to obtain the monomer mixed phase, then add 40% porogen in the weight percentage of the ...

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Abstract

The invention discloses a preparation method of a carbon-containing polymer for preparing a graphene three-dimensional structure powder material, and belongs to the field of polymer synthesis. The preparation method comprises: (1) adding a cross-linking agent monomer and an initiator monomer to a polymerization monomer to obtain a monomer mixing phase, and adding a pore forming agent; (2) adding an aqueous solution to a reaction kettle, adding a dispersant, adding the monomer mixing phase to the reaction kettle in a dropwise manner, and carrying out a reaction; (3) cooling, washing and carrying out other operations to obtain a copolymer; and (4) removing the pore forming agent by using an extractant, and carrying out hydrolysis on the copolymer to obtain the carbon-containing polymer for preparing the graphene three-dimensional structure powder material. According to the present invention, the carbon-containing polymer has the following advantages that transition metal ions are easily incorporated so as to be subjected to low temperature graphitization, the three-dimensional graphene powder having the three-dimensional structure can be formed after the high temperature graphitization treatment, and the disintegration rate is more than 98%; and the method has advantages of high product purity, stable product quality, and easy operation.

Description

technical field [0001] The invention relates to the field of polymer synthesis, in particular to a method for preparing a carbon-containing polymer as a graphene three-dimensional structure powder material. Background technique [0002] Since A.K.Geim and K.S.Novoselov won the 2010 Nobel Prize in Physics for graphene materials in 2010, graphene has attracted widespread attention from scientists all over the world. Into the "Thirteenth Five-Year Plan", graphene has been listed as one of the strategic frontier materials by "Made in China 2025", and has become a key development direction in the field of new materials. [0003] Graphene is a two-dimensional crystal formed of hexagonally arranged planar carbon atoms, which is only one atomic layer thick. The main types are: single-layer graphene, double-layer graphene (2-layer spacing 0.34nm), few-layer graphene (3-10 layers), and more than 10 layers are graphite. Graphene has special properties; the hardness is 130GPa, and the...

Claims

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Application Information

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IPC IPC(8): C08F212/10C08F220/06C08F220/46C08F212/36C08F226/06C08F222/26C08F220/14C08F220/28C08F222/14C08F2/20C08J9/26C08F285/00C08L25/14
CPCC08F212/10C08F285/00C08J9/26C08J2325/14C08F220/06C08F220/46C08F212/36C08F226/06C08F222/26C08F2/20C08F212/08
Inventor 沈培康孙晓珑田植群邱志荣
Owner GUANGXI UNIV
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