CN105199212A - Preparation method of graphene/PVA composite material - Google Patents
Preparation method of graphene/PVA composite material Download PDFInfo
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- CN105199212A CN105199212A CN201510527080.0A CN201510527080A CN105199212A CN 105199212 A CN105199212 A CN 105199212A CN 201510527080 A CN201510527080 A CN 201510527080A CN 105199212 A CN105199212 A CN 105199212A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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Abstract
The invention discloses a preparation method of a graphene/PVA composite material. The preparation method comprises the steps that 1, graphite powder and potassium permanganate are added into concentrated sulfuric acid to be subjected to a reaction for 2-3 h at the temperature of 40-60 DEG C, then, the temperature is increased to 75-90 DEG C, a reaction is performed for 0.5-1 h, cooling, centrifugal sedimentation and washing are performed, and graphite oxide is obtained after drying is performed; 2, the graphite oxide is added into the deionized water for ultrasonic dispersion for 1-2 h, and then unstripped graphite oxide is removed through centrifuging to obtain a graphene oxide water solution; 3, PVA is added into the graphene oxide water solution to obtain a mixed solution, a solvent is evaporated to obtain the graphene/PVA composite material, and the content of the graphene is 0.2 wt%. The composite material prepared from the graphene with the low oxidation degree has the excellent mechanical performance.
Description
Technical field
The application belongs to technical field of graphene preparation, particularly relates to the preparation method of a kind of Graphene/PVA matrix material.
Background technology
Graphene is a kind of two-dimentional carbon film only having an atomic thickness, it is uniquely a kind of material by individual layer atomic building that people find so far, hexagonal network is connected into by chemical bond-linking between carbon atom in carbon film, because the chemical bond between carbon atom is made up of sp2 hybridized orbital, therefore Graphene is very indomitable, possesses the good characteristic that other novel materials such as bent, electroconductibility is strong, physical strength good, light transmission is good do not possess.Graphene possesses the conductivity be not of the common run, and resistivity is very little, and electronics can move pole efficiently, and this respect performance is higher than traditional conductor and semi-conductor a lot; Electronics moves the collision that there is not electronics and atom in Graphene, can greatly reduce energy waste; Graphene possesses fabulous light transmission, but airtight, can be used for Development of New Generation protective layer material, and can be used for exploitation transparent electron product and wearable electronic product.The preparation method of graphene product is various, but there are some drawbacks, such as dispersiveness in organic solvent and and polymkeric substance between consistency poor.
Summary of the invention
The object of the present invention is to provide the preparation method of a kind of Graphene/PVA matrix material, to overcome deficiency of the prior art.
For achieving the above object, the invention provides following technical scheme:
The embodiment of the present application discloses the preparation method of a kind of Graphene/PVA matrix material, comprising:
(1), Graphite Powder 99, potassium permanganate are joined in the vitriol oil, react 2 ~ 3 hours at 40 ~ 60 DEG C, be then warming up to 75 ~ 90 DEG C, react 0.5 ~ 1 hour, after cooling, centrifugal settling, washing, drying, obtain graphite oxide;
(2), by graphite oxide join in deionized water and carry out ultrasonic disperse 1 ~ 2 hour, the graphite oxide that then centrifugal removing is unstripped, obtains graphene oxide water solution;
(3), in graphene oxide water solution add PVA, obtain mixing solutions, evaporating solvent obtains Graphene/PVA matrix material, and the content of Graphene is 0.2wt%.
Preferably, in the preparation method of above-mentioned Graphene/PVA matrix material, in described step (1), the mass ratio of Graphite Powder 99 and potassium permanganate is 1:1 ~ 1:4.
Preferably, in the preparation method of above-mentioned Graphene/PVA matrix material, in described step (1), the mass ratio of Graphite Powder 99 and potassium permanganate is 1:1.
Preferably, in the preparation method of above-mentioned Graphene/PVA matrix material, in described Graphene/PVA matrix material, the content of Graphene is 0.2 ~ 0.7wt%.
Preferably, in the preparation method of above-mentioned Graphene/PVA matrix material, in described Graphene/PVA matrix material, the content of Graphene is 0.2wt%.
Compared with prior art, the invention has the advantages that: the matrix material that the present invention is prepared by the Graphene of low degree of oxidation has excellent mechanical property.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the SEM figure of matrix material in embodiment 1.
Embodiment
The present invention is described further by the following example: according to following embodiment, the present invention may be better understood.But those skilled in the art will readily understand, concrete material ratio, processing condition and result thereof described by embodiment only for illustration of the present invention, and should can not limit the present invention described in detail in claims yet.
Embodiment 1
0.5g Graphite Powder 99,0.5g potassium permanganate are joined in the vitriol oil of 50ml, reacts 2 hours at 40 DEG C, be then warming up to 75 DEG C, react 1 hour, after cooling, centrifugal settling, washing, drying, obtain graphite oxide.
Joined by graphite oxide in deionized water and carry out ultrasonic disperse 1 hour, the graphite oxide that then centrifugal removing is unstripped, obtains graphene oxide water solution.
In graphene oxide water solution, add PVA, obtain mixing solutions, evaporating solvent obtains Graphene/PVA matrix material, and the content of Graphene is 0.2wt%.
Figure 1 shows that the SEM figure of matrix material in embodiment 1.Can find out in figure, in the polymer, cross-section morphology is homogeneous, soilless sticking phenomenon for the orderly filling of nanoscale twins.
Test the mechanical property of matrix material, its Young's modulus and tensile strength reach 6.02Gpa and 129.1MPa respectively.
Embodiment 2
0.5g Graphite Powder 99,1g potassium permanganate are joined in the vitriol oil of 50ml, reacts 2 hours at 40 DEG C, be then warming up to 75 DEG C, react 1 hour, after cooling, centrifugal settling, washing, drying, obtain graphite oxide.
Joined by graphite oxide in deionized water and carry out ultrasonic disperse 1 hour, the graphite oxide that then centrifugal removing is unstripped, obtains graphene oxide water solution.
In graphene oxide water solution, add PVA, obtain mixing solutions, evaporating solvent obtains Graphene/PVA matrix material, and the content of Graphene is 0.2wt%.
Embodiment 3
0.5g Graphite Powder 99,1.5g potassium permanganate are joined in the vitriol oil of 50ml, reacts 2 hours at 40 DEG C, be then warming up to 75 DEG C, react 1 hour, after cooling, centrifugal settling, washing, drying, obtain graphite oxide.
Joined by graphite oxide in deionized water and carry out ultrasonic disperse 1 hour, the graphite oxide that then centrifugal removing is unstripped, obtains graphene oxide water solution.
In graphene oxide water solution, add PVA, obtain mixing solutions, evaporating solvent obtains Graphene/PVA matrix material, and the content of Graphene is 0.2wt%.
Embodiment 4
0.5g Graphite Powder 99,2g potassium permanganate are joined in the vitriol oil of 50ml, reacts 2 hours at 40 DEG C, be then warming up to 75 DEG C, react 1 hour, after cooling, centrifugal settling, washing, drying, obtain graphite oxide.
Joined by graphite oxide in deionized water and carry out ultrasonic disperse 1 hour, the graphite oxide that then centrifugal removing is unstripped, obtains graphene oxide water solution.
In graphene oxide water solution, add PVA, obtain mixing solutions, evaporating solvent obtains Graphene/PVA matrix material, and the content of Graphene is 0.2wt%.
At this, also it should be noted that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
Finally, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Claims (5)
1. a preparation method for Graphene/PVA matrix material, is characterized in that, comprising:
(1), Graphite Powder 99, potassium permanganate are joined in the vitriol oil, react 2 ~ 3 hours at 40 ~ 60 DEG C, be then warming up to 75 ~ 90 DEG C, react 0.5 ~ 1 hour, after cooling, centrifugal settling, washing, drying, obtain graphite oxide;
(2), by graphite oxide join in deionized water and carry out ultrasonic disperse 1 ~ 2 hour, the graphite oxide that then centrifugal removing is unstripped, obtains graphene oxide water solution;
(3), in graphene oxide water solution add PVA, obtain mixing solutions, evaporating solvent obtains Graphene/PVA matrix material, and the content of Graphene is 0.2wt%.
2. the preparation method of Graphene according to claim 1/PVA matrix material, is characterized in that: in described step (1), and the mass ratio of Graphite Powder 99 and potassium permanganate is 1:1 ~ 1:4.
3. the preparation method of Graphene according to claim 2/PVA matrix material, is characterized in that: in described step (1), and the mass ratio of Graphite Powder 99 and potassium permanganate is 1:1.
4. the preparation method of Graphene according to claim 1/PVA matrix material, is characterized in that: in described Graphene/PVA matrix material, and the content of Graphene is 0.2 ~ 0.7wt%.
5. the preparation method of Graphene according to claim 4/PVA matrix material, is characterized in that: in described Graphene/PVA matrix material, and the content of Graphene is 0.2wt%.
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| CN201510527080.0A CN105199212A (en) | 2015-08-26 | 2015-08-26 | Preparation method of graphene/PVA composite material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778373A (en) * | 2016-05-10 | 2016-07-20 | 四川大学 | Method for preparing melt-processable modified polyvinyl alcohol-graphene composite material |
| CN107586426A (en) * | 2017-10-21 | 2018-01-16 | 马小良 | A kind of preparation method of stable dispersion type molybdenum disulfide polyvinyl alcohol composite material |
| CN110029524A (en) * | 2019-04-30 | 2019-07-19 | 台州浩展婴儿用品股份有限公司 | Utilize the method for discarded cotton fabric preparation high-performance Bactericidal paper |
| CN113683858A (en) * | 2021-07-13 | 2021-11-23 | 浙江工业大学 | Preparation method of conductive 3D printing graphene composite material with high mechanical strength |
| WO2022056974A1 (en) * | 2020-09-18 | 2022-03-24 | 华侨大学 | Insulating polyvinyl alcohol composite heat-conducting film and preparation method therefor |
| CN114455576A (en) * | 2022-01-24 | 2022-05-10 | 南方电网科学研究院有限责任公司 | Preparation method of graphene composite material for high-sensitivity detection of pressure change |
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| CN103265714A (en) * | 2013-05-20 | 2013-08-28 | 西安理工大学 | Polyvinyl alcohol/graphene oxide composite film preparation method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778373A (en) * | 2016-05-10 | 2016-07-20 | 四川大学 | Method for preparing melt-processable modified polyvinyl alcohol-graphene composite material |
| CN107586426A (en) * | 2017-10-21 | 2018-01-16 | 马小良 | A kind of preparation method of stable dispersion type molybdenum disulfide polyvinyl alcohol composite material |
| CN110029524A (en) * | 2019-04-30 | 2019-07-19 | 台州浩展婴儿用品股份有限公司 | Utilize the method for discarded cotton fabric preparation high-performance Bactericidal paper |
| CN110029524B (en) * | 2019-04-30 | 2019-10-25 | 台州浩展婴儿用品股份有限公司 | Utilize the method for discarded cotton fabric preparation high-performance Bactericidal paper |
| WO2022056974A1 (en) * | 2020-09-18 | 2022-03-24 | 华侨大学 | Insulating polyvinyl alcohol composite heat-conducting film and preparation method therefor |
| CN113683858A (en) * | 2021-07-13 | 2021-11-23 | 浙江工业大学 | Preparation method of conductive 3D printing graphene composite material with high mechanical strength |
| CN114455576A (en) * | 2022-01-24 | 2022-05-10 | 南方电网科学研究院有限责任公司 | Preparation method of graphene composite material for high-sensitivity detection of pressure change |
| CN114455576B (en) * | 2022-01-24 | 2023-11-10 | 南方电网科学研究院有限责任公司 | Preparation method of graphene composite material for detecting pressure change with high sensitivity |
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Application publication date: 20151230 |