CN108358541B - Polypyrrole-coated graphene oxide cement-based composite material and preparation method thereof - Google Patents
Polypyrrole-coated graphene oxide cement-based composite material and preparation method thereof Download PDFInfo
- Publication number
- CN108358541B CN108358541B CN201810098334.5A CN201810098334A CN108358541B CN 108358541 B CN108358541 B CN 108358541B CN 201810098334 A CN201810098334 A CN 201810098334A CN 108358541 B CN108358541 B CN 108358541B
- Authority
- CN
- China
- Prior art keywords
- graphene oxide
- cement
- base material
- composite material
- based composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00258—Electromagnetic wave absorbing or shielding materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a polypyrrole coated graphene oxide cement-based composite material and a preparation method thereof, and relates to the technical field of concrete, the field of chemical polymers and the field of electromagnetic shielding. The invention combines the conductive concrete and polypyrrole film technologies and explores the electromagnetic shielding effect. In research, the invention finds that how to form a uniform, compact, high-adhesion and thin film with a certain thickness on the surface of a cement matrix is a key problem for manufacturing the composite material. The graphene oxide and the polypyrrole film are applied to the cement-based material, so that the cement-based composite material with excellent electromagnetic shielding performance can be prepared, and the graphene oxide and polypyrrole film can be widely applied to military or civil buildings. The polypyrrole-graphene oxide cement-based composite material provided by the invention can well solve the problem of uniform electromagnetic shielding of cement-based materials, and simultaneously greatly increases the shielding range.
Description
Technical Field
The invention relates to the technical field of concrete, the field of chemical macromolecules and the field of electromagnetic shielding, in particular to a polypyrrole coated graphene oxide cement-based composite material and a preparation method thereof.
Background
The wide application of various electronic appliances and radio communication equipment provides richness for human beingsThe electromagnetic wave resource brings more and more electromagnetic wave radiation and interference. Electromagnetic interference has become a nuisance worldwide. Therefore, the development of materials with electromagnetic shielding effect has important research significance. The concrete is the most widely applied material in the building industry at present, and has the advantages of convenient material acquisition, low price, high compressive strength, good moldability and the like. The resistivity of common concrete is generally 104～107In the range of Ω · m, the material is not an insulator or a good conductor, but is interposed therebetween. If a certain amount of conductive component materials are added into the common concrete, the conductivity of the concrete can be greatly improved, so that a conductor with better conductivity is formed. Therefore, the conductive concrete has all excellent performances of the concrete and good conductivity, and has huge potential application prospects in various fields due to the advantages. Among them, electromagnetic shielding is an important application of conductive concrete. The conductive phase material is added into the common concrete, so that the common concrete has conductive performance and electromagnetic wave absorption performance, and the common concrete is the conductive concrete with electromagnetic shielding effect. The radar antenna can weaken electromagnetic wave radiation, prevent electromagnetic interference, protect military privacy, perform radar stealth and the like, integrates the structure and the function, saves materials and energy, and has very important significance.
However, in view of the related documents of the current conductive concrete in electromagnetic shielding, it can be found that the common conductive concrete for electromagnetic shielding generally adopts metal or carbon materials to be doped into the concrete, so that the concrete has the property of metal reflecting electromagnetic waves or the energy absorption of carbon materials absorbing waves, thereby achieving the effect of electromagnetic shielding. However, when the conductive material is mixed into concrete, the inherent defect of uneven distribution of the conductive material exists, and wave leakage points are easy to occur, and meanwhile, the problems of low shielding efficiency, narrow shielding bandwidth and the like generally exist in the conventional conductive concrete formula for electromagnetic shielding.
The traditional electromagnetic shielding material is usually made of metal material with high conductivity and excellent mechanical property. Such as Cu, Ag, Fe, Ni, etc., but the density is high, the corrosion is easy, and the limitation is large. The conductive polymer has the advantages of light weight, easy processing and forming, excellent cost performance and the like, has potential advantages and good application prospect in the aspect of shielding electromagnetic waves, and can not only lose the electromagnetic waves through reflection. And absorption loss is more advantageous. The method for forming the conductive film on the surface of the packaging material by arranging the conductive polymer is a new method developed in recent years, and polypyrrole has the advantages of high conductivity, easiness in polymerization to form a film, easiness in doping, good environmental stability, good chemical corrosion resistance and the like, so that the method becomes a research hotspot of the conductive film.
At present, no relevant report about the application of the polypyrrole film to the cement-based material exists, but in experiments, the key problem of manufacturing the composite material is found out how to form a uniform and compact polypyrrole film with good adhesion and a certain thickness on the surface of a cement matrix. The surface treatment method provided by the invention can well solve the problem.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention mainly aims to provide a preparation method of a polypyrrole coated graphene oxide cement-based composite material.
Polypyrrole is used as a chemical conductive polymer material, and has excellent electromagnetic shielding performance. The graphene oxide and the polypyrrole film are applied to the cement-based material, so that the cement-based composite material with excellent electromagnetic shielding performance can be prepared, and the graphene oxide and polypyrrole film can be widely applied to military or civil buildings.
The invention also aims to provide the polypyrrole coated graphene oxide cement-based composite material prepared by the preparation method. The composite material can be used for electromagnetic shielding.
The purpose of the invention is realized by the following technical scheme:
a preparation method of a polypyrrole coated graphene oxide cement-based composite material comprises the following steps:
step A: preparation of test materials: the main materials are as follows: bisphenol A epoxy resin, ethylene glycol monobutyl ether, n-butyl alcohol, water-based acrylic resin, triethanolamine, polyvinyl acetate, vinyl triethoxysilane, pure pyrrole, ferric trichloride, tetrasiloxane quaternary ammonium chloride salt, dimethyl silicone oil, graphene oxide powder, portland cement, absolute ethyl alcohol and deionized water;
and B: preparing a graphene oxide dispersing agent: the matching mass ratio is as follows: tetrasiloxane quaternary ammonium chloride salt: dimethyl silicone oil: deionized water 5:1: 15; putting the tetrasiloxane quaternary ammonium chloride salt and the dimethyl silicone oil into a glass beaker, and stirring for 2-2.5 min to enable the tetrasiloxane quaternary ammonium chloride salt and the dimethyl silicone oil to be in a uniform phase; then slowly adding water, and continuously stirring for 15-18 min; placing the mixture on an emulsifying machine, and emulsifying for 15-18 min at a rotating speed of 3000-3500 r/min to obtain a graphene oxide dispersing agent;
and C: and (3) dispersing graphene oxide: mixing graphene oxide and a graphene oxide dispersing agent in a volume ratio of 1: 1.4-1.6, and stirring for 15-18 min to prepare a graphene oxide suspension;
step D: according to the weight ratio of silicate cement: water: graphene oxide suspension ═ 1: 0.4: preparing a cement base material according to the mass ratio of 0.1-0.15, mixing portland cement and water, stirring for 2-3 min in a paste mixer, adding a graphene oxide suspension, and stirring for 2-3 min; injecting into a mold, curing for 12h at the temperature of 20 ℃ and the humidity of 98%, demolding, and continuously curing the demolded component for 28d under the conditions to obtain a cement base material;
step E: interface treating agent for cement base material: preparing ethylene glycol monobutyl ether and n-butyl alcohol into a mixed solvent according to the proportion of 2: 3-3.2; dissolving bisphenol A type epoxy resin in a mixed solvent according to a ratio of 1: 1-1.2; fully dissolving water-based acrylic resin, triethanolamine and polyvinyl acetate according to the proportion of 1:1:1.5, adding dissolved bisphenol A type epoxy resin according to the proportion of 1: 1-1.2, and emulsifying the mixture on an emulsifying machine at the rotating speed of 3000-3500 r/min for 30-35 min to obtain a cement matrix material interface treating agent;
step F: surface treatment of the cement base material: washing the cement base material after the curing with water, removing floating ash on the surface, drying at 60-70 ℃ for 6-8 h, taking out, and cooling to room temperature; uniformly spraying the prepared interface treating agent of the cement base material on the surface of the cement base material by using a spray gun;
step G, immediately soaking the cement base material into 2-2.2% of vinyl triethoxysilane before the emulsion is dried, taking out the cement base material after 3-4 min, naturally drying the cement base material at room temperature, then soaking the cement base material into 0.7-0.9 mol/L pyrrole aqueous solution, taking out the cement base material after 2-3 min, and putting the cement base material into 0.35-0.45 mol/L ferric trichloride solution for polymerization reaction;
step H: and taking out the concrete test block after reacting for a period of time, washing the concrete test block for several times by using deionized water, then washing the concrete test block by using absolute ethyl alcohol, repeatedly carrying out second and third polymerization reactions after drying the concrete test block, and washing and drying the concrete test block to obtain the polypyrrole coated graphene oxide cement-based composite material.
In the step (B), the step (A),
preferably, the stirring time is 2 min;
preferably, the time for continuing stirring is 15 min;
preferably, the emulsification condition is emulsification for 15min at the rotating speed of 3000 r/min;
in the step C, the step C is carried out,
preferably, the graphene oxide and the graphene oxide dispersing agent are mixed in a volume ratio of 1: 1.5;
preferably, the stirring time is 15 min;
in the step D, the step of the method is carried out,
preferably, the cement composition is prepared according to the following steps of: water: graphene oxide suspension ═ 1: 0.4: preparing a cement base material in a mass ratio of 0.1;
preferably, the time for mixing the portland cement and the water and then stirring is 2 min;
preferably, the graphene oxide suspension is added and stirred for 2 min.
In the step E, the step of the method is carried out,
preferably, the ethylene glycol monobutyl ether and the n-butanol are prepared into a mixed solvent according to the ratio of 2: 3;
preferably, the bisphenol A epoxy resin is dissolved in the mixed solvent in a ratio of 1: 1;
preferably, the dissolved bisphenol A type epoxy resin is added according to the proportion of 1: 1;
preferably, the emulsification condition is emulsification for 30min at the rotating speed of 3000 r/min;
in the step F, the step of the method is carried out,
preferably, the drying condition is drying at 60 ℃ for 6 h;
in the step G, the step C is carried out,
preferably, the cement base material is soaked in 2% of vinyl triethoxysilane, and is taken out after 3min and naturally dried at room temperature;
preferably, the material is immersed into 0.8 mol/L pyrrole aqueous solution, taken out after 2min, and put into 0.4 mol/L ferric trichloride solution for polymerization reaction;
in the step (H), the step (A),
and the second polymerization reaction and the third polymerization reaction are repeatedly immersed in the pyrrole aqueous solution and the ferric trichloride solution, and then the mixture is cleaned and dried.
A polypyrrole coated graphene oxide cement-based composite material is prepared by the preparation method.
The mechanism of the invention is as follows:
the invention combines the conductive concrete and polypyrrole film technologies and explores the electromagnetic shielding effect. In research, the invention finds that how to form a uniform, compact, high-adhesion and thin film with a certain thickness on the surface of a cement matrix is a key problem for manufacturing the composite material.
Compared with the prior art, the invention has the following advantages and effects:
at present, no document reports a polypyrrole coated cement-based composite material, but the existing conductive concrete for electromagnetic shielding generally has the problems of more wave leakage points, low shielding effectiveness, narrow shielding range and the like. The polypyrrole-graphene oxide cement-based composite material provided by the invention can well solve the problem of uniform electromagnetic shielding of cement-based materials, and simultaneously greatly increases the shielding range.
Drawings
FIG. 1 is a graph of the shielding effectiveness of 0-3GHz full band.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example 1
Step A: preparation of test materials: the main materials are as follows: bisphenol A epoxy resin, ethylene glycol monobutyl ether, n-butyl alcohol, water-based acrylic resin, triethanolamine, polyvinyl acetate, vinyl triethoxysilane, pure pyrrole, ferric trichloride, tetrasiloxane quaternary ammonium chloride salt, dimethyl silicone oil, graphene oxide powder, portland cement, absolute ethyl alcohol and deionized water;
and B: preparing a graphene oxide dispersing agent: the matching mass ratio is as follows: tetrasiloxane quaternary ammonium chloride salt: dimethyl silicone oil: deionized water 5:1: 15; putting the tetrasiloxane quaternary ammonium chloride salt and the dimethyl silicone oil into a glass beaker, and stirring for 2min to enable the tetrasiloxane quaternary ammonium chloride salt and the dimethyl silicone oil to be in a uniform phase; then slowly adding water, and continuously stirring for 15 min; placing the mixture on an emulsifying machine to emulsify for 15min at the rotating speed of 3000r/min to obtain a graphene oxide dispersing agent;
and C: and (3) dispersing graphene oxide: mixing graphene oxide and a graphene oxide dispersing agent in a volume ratio of 1:1.5, and stirring for 15min to prepare a graphene oxide suspension;
step D: according to the weight ratio of silicate cement: water: graphene oxide suspension ═ 1: 0.4: preparing a cement base material according to the mass ratio of 0.1, mixing portland cement and water, stirring for 2min in a paste mixer, adding a graphene oxide suspension, and stirring for 2 min; injecting into a mold, curing for 12h at the temperature of 20 ℃ and the humidity of 98%, demolding, and continuously curing the demolded component for 28d under the conditions to obtain a cement base material;
step E: interface treating agent for cement base material: preparing ethylene glycol monobutyl ether and n-butyl alcohol into a mixed solvent according to the proportion of 2: 3; dissolving bisphenol A type epoxy resin in a mixed solvent in a ratio of 1: 1; fully dissolving water-based acrylic resin, triethanolamine and polyvinyl acetate according to the proportion of 1:1:1.5, adding the dissolved bisphenol A type epoxy resin according to the proportion of 1:1, and putting the mixture on an emulsifying machine to emulsify for 30min at the rotating speed of 3000r/min to obtain a cement matrix material interface treating agent;
step F: surface treatment of the cement base material: washing the cement base material after the curing with water, removing floating ash on the surface, drying at 60 ℃ for 6h, taking out, and cooling to room temperature; uniformly spraying the prepared interface treating agent of the cement base material on the surface of the cement base material by using a spray gun;
step G, immediately soaking the cement base material into 2 percent of vinyl triethoxysilane before the emulsion is not dried, taking out the cement base material after 3min, naturally drying the cement base material at room temperature, then soaking the cement base material into 0.8 mol/L pyrrole aqueous solution, taking out the cement base material after 2min, and putting the cement base material into 0.4 mol/L ferric trichloride solution for polymerization reaction;
step H: and taking out the concrete test block after reacting for a period of time, washing the concrete test block for several times by using deionized water, then washing the concrete test block by using absolute ethyl alcohol, repeatedly carrying out second and third polymerization reactions after drying the concrete test block, and washing and drying the concrete test block to obtain the polypyrrole coated graphene oxide cement-based composite material.
And the second polymerization reaction and the third polymerization reaction are repeatedly immersed in the pyrrole aqueous solution and the ferric trichloride solution, and then the mixture is cleaned and dried.
The number of the common cement sample is C0, the number of the added graphene oxide sample is C1, the number of the polypyrrole coated graphene oxide cement-based composite material prepared by the method is C2, and the thickness of the sample is 3 cm. And (3) respectively testing the resistivity and the electromagnetic shielding effectiveness of the three samples within the range of 300MHz-3GHz by adopting a flange coaxial device. The results are shown in Table 1 and FIG. 1.
TABLE 1 resistivity of the C0-C2 samples
| Sample numbering | Graphene oxide | Polypyrrole coating | Resistivity of |
| C0 | - | - | 54.3 |
| C1 | Is provided with | - | 15.2 |
| C2 | Is provided with | Is provided with | 16.8 |
Fig. 1 is a full-band shielding effectiveness curve of a sample of 0 to 3GHz (where 300MHz to GHz is an effective shielding band), and it can be seen from experimental results that the polypyrrole-graphene oxide concrete has not only a greater shielding effectiveness, but also a wider shielding range compared with common concrete.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A preparation method of a polypyrrole coated graphene oxide cement-based composite material is characterized by comprising the following steps:
step A: preparation of test materials: the main materials are as follows: bisphenol A epoxy resin, ethylene glycol monobutyl ether, n-butyl alcohol, water-based acrylic resin, triethanolamine, polyvinyl acetate, vinyl triethoxysilane, pure pyrrole, ferric trichloride, tetrasiloxane quaternary ammonium chloride salt, dimethyl silicone oil, graphene oxide powder, portland cement, absolute ethyl alcohol and deionized water;
and B: preparing a graphene oxide dispersing agent: the matching mass ratio is as follows: tetrasiloxane quaternary ammonium chloride salt: dimethyl silicone oil: deionized water =5:1: 15; putting the tetrasiloxane quaternary ammonium chloride salt and the dimethyl silicone oil into a glass beaker, and stirring for 2-2.5 min to enable the tetrasiloxane quaternary ammonium chloride salt and the dimethyl silicone oil to be in a uniform phase; then slowly adding water, and continuously stirring for 15-18 min; placing the mixture on an emulsifying machine, and emulsifying for 15-18 min at a rotating speed of 3000-3500 r/min to obtain a graphene oxide dispersing agent;
and C: and (3) dispersing graphene oxide: mixing graphene oxide and a graphene oxide dispersing agent in a volume ratio of 1: 1.4-1.6, and stirring for 15-18 min to prepare a graphene oxide suspension;
step D: according to the weight ratio of silicate cement: water: graphene oxide suspension = 1: 0.4: preparing a cement base material according to the mass ratio of 0.1-0.15, mixing portland cement and water, stirring for 2-3 min in a paste mixer, adding a graphene oxide suspension, and stirring for 2-3 min; injecting into a mold, curing for 12h at the temperature of 20 ℃ and the humidity of 98%, demolding, and continuously curing the demolded component for 28d under the conditions to obtain a cement base material;
step E: interface treating agent for cement base material: preparing ethylene glycol monobutyl ether and n-butyl alcohol into a mixed solvent according to the proportion of 2: 3-3.2; dissolving bisphenol A type epoxy resin in a mixed solvent according to a ratio of 1: 1-1.2; fully dissolving water-based acrylic resin, triethanolamine and polyvinyl acetate according to the proportion of 1:1:1.5, adding dissolved bisphenol A type epoxy resin according to the proportion of 1: 1-1.2, and emulsifying the mixture on an emulsifying machine at the rotating speed of 3000-3500 r/min for 30-35 min to obtain a cement matrix material interface treating agent;
step F: surface treatment of the cement base material: washing the cement base material after the curing with water, removing floating ash on the surface, drying at 60-70 ℃ for 6-8 h, taking out, and cooling to room temperature; uniformly spraying the prepared interface treating agent of the cement base material on the surface of the cement base material by using a spray gun;
step G, immediately soaking the cement base material into 2-2.2% of vinyl triethoxysilane before the emulsion is dried, taking out the cement base material after 3-4 min, naturally drying the cement base material at room temperature, then soaking the cement base material into 0.7-0.9 mol/L pyrrole aqueous solution, taking out the cement base material after 2-3 min, and putting the cement base material into 0.35-0.45 mol/L ferric trichloride solution for polymerization reaction;
step H: taking out the concrete test block after reacting for a period of time, washing the concrete test block with deionized water for several times, then washing the concrete test block with absolute ethyl alcohol, drying the concrete test block in the air, repeating the second and third polymerization reactions, and washing and drying the concrete test block to obtain the polypyrrole coated graphene oxide cement-based composite material;
and H, repeatedly carrying out polymerization reaction for the second time and the third time, namely repeatedly immersing into the pyrrole aqueous solution and the ferric trichloride solution, cleaning and airing.
2. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
in the step (B), the step (A),
the stirring time is 2 min;
the time for continuing stirring is 15 min;
the emulsification condition is that emulsification is carried out for 15min at the rotating speed of 3000 r/min.
3. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
in the step C, the step C is carried out,
the graphene oxide and the graphene oxide dispersing agent are mixed according to the volume ratio of 1: 1.5;
the stirring time is 15 min.
4. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
in the step D, the step of the method is carried out,
according to the weight ratio of silicate cement: water: graphene oxide suspension = 1: 0.4: preparing a cement base material in a mass ratio of 0.1;
mixing the portland cement and water, and stirring for 2 min;
adding the graphene oxide suspension, and stirring for 2 min.
5. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
in the step E, the step of the method is carried out,
preparing ethylene glycol monobutyl ether and n-butyl alcohol into a mixed solvent according to the proportion of 2: 3;
dissolving bisphenol A type epoxy resin in a mixed solvent in a ratio of 1: 1;
adding the dissolved bisphenol A type epoxy resin according to the proportion of 1:1.
6. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
in the step E, the emulsification condition is that the emulsification is carried out for 30min at the rotating speed of 3000 r/min.
7. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
in the step F, the drying condition is drying for 6 hours at the temperature of 60 ℃.
8. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
and step G, soaking the cement base material into 2% of vinyl triethoxysilane, taking out after 3min, and naturally drying at room temperature.
9. The preparation method of the polypyrrole coated graphene oxide cement-based composite material according to claim 1, characterized in that:
and step G, immersing the material into 0.8 mol/L pyrrole aqueous solution, taking out the material after 2min, and putting the material into 0.4 mol/L ferric trichloride solution for polymerization reaction.
10. A polypyrrole coated graphene oxide cement-based composite material is characterized by being prepared by the preparation method of any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098334.5A CN108358541B (en) | 2018-01-31 | 2018-01-31 | Polypyrrole-coated graphene oxide cement-based composite material and preparation method thereof |
| JP2018243821A JP6915887B2 (en) | 2018-01-31 | 2018-12-26 | Polypyrrole film graphene oxide cement-based composite material and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098334.5A CN108358541B (en) | 2018-01-31 | 2018-01-31 | Polypyrrole-coated graphene oxide cement-based composite material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108358541A CN108358541A (en) | 2018-08-03 |
| CN108358541B true CN108358541B (en) | 2020-07-31 |
Family
ID=63007749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810098334.5A Active CN108358541B (en) | 2018-01-31 | 2018-01-31 | Polypyrrole-coated graphene oxide cement-based composite material and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6915887B2 (en) |
| CN (1) | CN108358541B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912971B (en) * | 2019-02-25 | 2021-08-06 | 上海大学 | Method for preparing nano polypyrrole-reduced graphene oxide composite material by double emulsion method |
| CN111848031A (en) * | 2020-07-13 | 2020-10-30 | 深圳市展旺新材料科技有限公司 | Graphene cement-based conductive composite material and preparation method thereof |
| CN111807772B (en) * | 2020-07-14 | 2021-12-07 | 乐清市凡山电器有限公司 | Pumice concrete with electromagnetic wave absorption function and preparation method thereof |
| CN112292015B (en) * | 2020-11-10 | 2022-10-25 | 上海海事大学 | MXene/PPy composite wave absorbing agent and preparation method thereof |
| CN113077919B (en) * | 2021-03-25 | 2022-10-11 | 徐州医科大学 | Metal Pd-loaded graphene/polypyrrole composite material and preparation method and application thereof |
| CN113372064A (en) * | 2021-06-23 | 2021-09-10 | 重庆烯达科技有限公司 | Graphene oxide modified cement concrete and preparation method thereof |
| CN114702716A (en) * | 2022-04-20 | 2022-07-05 | 浙江理工大学 | Preparation method of double-layer flexible composite film with strong microwave absorption performance |
| CN114686138A (en) * | 2022-05-07 | 2022-07-01 | 河北工业大学 | Magnesium phosphate cement-based electromagnetic wave-absorbing concrete canvas |
| CN114892394B (en) * | 2022-06-08 | 2023-09-22 | 深圳市乐清合兴电子有限公司 | Multilayer conductive cloth and manufacturing method thereof |
| CN115259367B (en) * | 2022-07-26 | 2023-11-17 | 上海净豚环保科技有限公司 | Proliferation and bacteria cultivation method of anaerobic granular sludge for food wastewater |
| CN116239333B (en) * | 2023-05-11 | 2023-07-07 | 湖南高翔新材料有限公司 | Production process of antifreeze concrete additive |
| CN117238680B (en) * | 2023-11-10 | 2024-04-09 | 江西五十铃汽车有限公司 | Graphene oxide/polypyrrole composite electrode material and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727380A (en) * | 2005-07-12 | 2006-02-01 | 天津大学 | Chemical method for preparing film of poly pyrrole in high conductivity on surface of insulating material |
| US8357858B2 (en) * | 2008-11-12 | 2013-01-22 | Simon Fraser University | Electrically conductive, thermosetting elastomeric material and uses therefor |
| CN103130436A (en) * | 2013-03-25 | 2013-06-05 | 中国科学院上海硅酸盐研究所 | Oxidized graphene and graphene reinforced cement based composite material and preparation method thereof |
| CN106082837A (en) * | 2016-06-03 | 2016-11-09 | 广州大学 | A kind of graphene conductive concrete |
| CN106278019A (en) * | 2016-08-04 | 2017-01-04 | 青岛理工大学 | Water-based polypyrrole cement based conductive composite material, preparation method and application |
| CN106587758A (en) * | 2016-11-15 | 2017-04-26 | 同济大学 | Emulsion modification based graphene-cement based composite material and preparation and application thereof |
-
2018
- 2018-01-31 CN CN201810098334.5A patent/CN108358541B/en active Active
- 2018-12-26 JP JP2018243821A patent/JP6915887B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727380A (en) * | 2005-07-12 | 2006-02-01 | 天津大学 | Chemical method for preparing film of poly pyrrole in high conductivity on surface of insulating material |
| US8357858B2 (en) * | 2008-11-12 | 2013-01-22 | Simon Fraser University | Electrically conductive, thermosetting elastomeric material and uses therefor |
| CN103130436A (en) * | 2013-03-25 | 2013-06-05 | 中国科学院上海硅酸盐研究所 | Oxidized graphene and graphene reinforced cement based composite material and preparation method thereof |
| CN106082837A (en) * | 2016-06-03 | 2016-11-09 | 广州大学 | A kind of graphene conductive concrete |
| CN106278019A (en) * | 2016-08-04 | 2017-01-04 | 青岛理工大学 | Water-based polypyrrole cement based conductive composite material, preparation method and application |
| CN106587758A (en) * | 2016-11-15 | 2017-04-26 | 同济大学 | Emulsion modification based graphene-cement based composite material and preparation and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019131456A (en) | 2019-08-08 |
| CN108358541A (en) | 2018-08-03 |
| JP6915887B2 (en) | 2021-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108358541B (en) | Polypyrrole-coated graphene oxide cement-based composite material and preparation method thereof | |
| CN105238179A (en) | Waterborne electromagnetic shielding coating and preparation method thereof | |
| CN104563316B (en) | A kind of mineral wool sound absorption board of anti-electromagnetic radiation and preparation method thereof | |
| CN110117431A (en) | A kind of preparation method of MXene base electro-magnetic screen coating material | |
| CN111285671B (en) | Low-frequency wave-absorbing material and preparation method thereof | |
| CN105273186A (en) | Preparation method of graphene oxide-polyaniline composite electromagnetic shielding material | |
| CN114853502B (en) | Ceramic/graphene aerogel wave-absorbing material and preparation method and application thereof | |
| CN110982421A (en) | High-temperature-resistant wave-absorbing coating and preparation method thereof | |
| CN110499142A (en) | A kind of high-efficiency shielding electromagnetic interference MXene/ metal ion composite material and preparation method | |
| CN112159582B (en) | Electromagnetic wave shielding material and preparation method thereof | |
| CN109400958A (en) | A kind of flexible soft magnetic ferrite composite material and preparation method for electromagnetic shielding | |
| CN111073296B (en) | Wave-absorbing patch and preparation method thereof | |
| CN112920774A (en) | Hexagonal Co @ C wave absorber, preparation method and application | |
| CN112077298B (en) | ErFe @ GO composite microwave absorbent and preparation method thereof | |
| Akgül et al. | Biochar-iron composites as electromagnetic interference shielding material | |
| CN113072860A (en) | Nano rare earth oxide modified functional coating and preparation method thereof | |
| CN112538296A (en) | Graphene network conductive coating for flexible circuit and preparation method thereof | |
| CN113402215A (en) | Radiation-proof ceramic tile bonding mortar and preparation method thereof | |
| CN112281503A (en) | Flexible graphene/barium ferrite composite fabric and preparation method thereof | |
| JP2004168986A (en) | Electromagnetic wave-shielding coating | |
| CN113388231A (en) | Anti-rust carbonyl iron powder wave-absorbing material and preparation method thereof | |
| CN110407548B (en) | Preparation method of electromagnetic wave absorption gypsum composite material | |
| CN111393948A (en) | Preparation method of material with good wave-absorbing effect | |
| CN109608676A (en) | Flexible PC graphene coating electromagnetic shielding membrane material and preparation method thereof | |
| CN111269560B (en) | Nylon 6/expanded graphite/nickel composite material for electromagnetic shielding container and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |