CN105565737A - Conducting concrete using polyaniline as conducting phase and preparation method thereof - Google Patents
Conducting concrete using polyaniline as conducting phase and preparation method thereof Download PDFInfo
- Publication number
- CN105565737A CN105565737A CN201510932928.8A CN201510932928A CN105565737A CN 105565737 A CN105565737 A CN 105565737A CN 201510932928 A CN201510932928 A CN 201510932928A CN 105565737 A CN105565737 A CN 105565737A
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- Prior art keywords
- polyaniline
- conducting
- concrete
- conducting concrete
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Classifications
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
Abstract
The invention belongs to the field of a composite material, and particularly relates to conducting concrete using polyaniline as a conducting phase and a preparation method thereof. The conducting concrete using polyaniline as the conducting phase is prepared from the following ingredients in parts by weight: 100 to 200 parts of cement, 100 to 200 parts of sand, 15 to 150 parts of conducting polyaniline, 0.15 to 1.5 parts of dispersing agents and 50 to 200 parts of water. The preparation method is simple. Firstly, the conducting polyaniline, the dispersing agent and the water are mixed according to the weight parts; then, the ball milling dispersion is performed; next, all dispersing liquid is sufficiently stirred and mixed with the weight parts of cement and sand; next, the mixture is poured into a template; the processes of mold dismounting, maintaining, drying and the like are performed; finally, the conducting concrete using polyaniline as the conducting phase is obtained. The conducting concrete using polyaniline as the conducting phase prepared by the method and the raw material proportion provided by the invention has the advantages that the electric resistivity can be reduced to 69.0 ohm.cm; the voltage withstanding intensity can reach 35.7MPa; the conducting concrete is completely applicable to industrial production.
Description
Technical field
The invention belongs to field of compound material, being specifically related to a kind of take polyaniline as conducting concrete of conductive phase and preparation method thereof.
Background technology
Conducting concrete is that the concrete with certain conductivity and mechanical property made by the conductive component material adding certain content in normal concrete.The resistivity of normal concrete is generally 10
6-10
9within the scope of Ω cm, neither belong to isolator, also do not belong to good conductor.In concrete, add the conductive component of certain content, its electroconductibility can be made greatly to improve, thus become the electrical conductor with excellent conductive performance.At present, the conducting medium for preparing conducting concrete generally has following a few class: graphite, carbon fiber, slag, steel fiber etc.
Graphite is a kind of inorganic materials comparatively easily obtained, and it not only has good electroconductibility, thermal conductivity, and has good unreactiveness.Research shows, the resistivity of conducting concrete can 10 with the change of graphite volume
-1-10
6change within the scope of Ω cm, but must concrete just can be made to have good electroconductibility when volume is higher, and the water requirement of Graphite Powder 99 is very large, needs the water consumption increasing considerably concrete mix, the volume causing concrete intensity along with Graphite Powder 99 is increased and declines fast.
Carbon fiber is a kind of high strength, high-modulus lightweight non-metallic type material, has both had the various excellent victory energy of elemental carbon, and has had again good wear resistance, electroconductibility, low temperature properties, oilness and adsorptivity.Carbon fiber, for making conducting concrete, can play conducting function, and can strengthen its mechanical property to a certain extent.But its cost is higher, and the resistivity of the conducting concrete of carbon fiber-containing is relevant, wayward with length concrete set time.
Steel fiber has the advantage improving the mechanical properties such as concrete tension, bending resistance, shearing resistance, also can play conducting function as metal simultaneously.But research finds that steel fiber is not remarkable especially to the concrete resistivity of reduction, and the steel fiber of volume volume fraction 1% about reduces the resistivity of concrete seven 0%.But because in concrete, steel fiber is vulnerable to corrosive nature, make the concrete resistivity of steel fiber conductive, after 1 year, increase nearly 60 times.
Slag is the waste residue produced in steelmaking process, and its particle has electroconductibility usually, can consider the conducting medium being used as conducting concrete.But test shows, what steel slag particle needs ground comparatively carefully just can make concrete have good electroconductibility, and its hard difficulty mill, consume energy more, slag is subject to industrial pollution seriously simultaneously, limits its range of application.
In sum, lack in prior art and a kind ofly suitable electro-conductive material independently to be mixed in concrete and to make concrete have the method for better electroconductibility, larger ultimate compression strength and better environmental stability.Electrically conductive polyaniline is as a kind of conducting polymer composite, and have the advantage such as mechanism of doping effect of excellent environmental stability, low, the nontoxic and uniqueness of synthesis cost, its specific conductivity can reach 10S/cm, even higher.Therefore, electrically conductive polyaniline, as the conductive phase of conducting concrete, has potential using value.
Summary of the invention
It take polyaniline as the conducting concrete of conductive phase that technical problem to be solved by this invention is to provide a kind of, and it also possesses the ultimate compression strength being suitable for actual production while possessing better conductive capability.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of take polyaniline as the conducting concrete of conductive phase, comprise the raw material of following parts by weight: cement 100-200 part, sand 100-200 part, electrically conductive polyaniline 15-150 part, dispersion agent 0.15-1.5 part, water 50-200 part.
Further, the present invention also provides a kind of preferred proportioning raw materials, and the parts by weight of each raw material are as follows: cement 150-200 part, sand 100-150 part, electrically conductive polyaniline 75-100 part, dispersion agent 0.75-1.5 part, water 100-150 part.
Concrete, the specific conductivity of described electrically conductive polyaniline is 1-10S/cm.Described electrically conductive polyaniline can by oxidation synthesis preparation existing in prior art, its process comprises and aniline is dissolved in acid solution and forms benzene soluble amine salt, then homogeneous phase or emulsion polymerization compositing conducting polyaniline is used, acid solution or other oxidative initiator of ammonium persulphate is dripped in benzene soluble amine salt, finally obtain the electrically conductive polyaniline that specific conductivity is larger, described acid can be hydrochloric acid or sulfuric acid.Electrically conductive polyaniline good conductivity, nontoxic and synthesize simple characteristic, become conducting concrete and preferably conduct electricity component.
Preferably, described cement is composite Portland cement.
Preferably, described sand is river sand.
Preferably, described dispersion agent is Tego760W, the one in namely conventional enlightening high score powder.
Concrete, part by weight the best of described dispersion agent and described electrically conductive polyaniline is 1:100.
It take polyaniline as the preparation method of the conducting concrete of conductive phase that the present invention also provides above-mentioned, comprises the steps: that the parts by weight of each raw material are by same weight basis,
S1: carry out Ball milling process by after electrically conductive polyaniline 15-150 part, water 50-200 part and the mixing of dispersion agent 0.15-1.5 part, obtain the dispersion liquid of polyaniline in water;
S2: are added in stirrer together with whole dispersion liquids that cement 100-200 part, sand 100-200 part and S1 are prepared and fully stir, obtain the mixture that each raw material mixes;
S3: pour the mixture prepared in S2 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S4: taken out from maintaining box by the sample block in S3, to be placed under room temperature and drying conditions maintenance 7 days, to be able to the conducting concrete that polyaniline is conductive phase.
Concrete, described in the dispersion liquid that S1 obtains, the particle diameter of polyaniline is below 100 μm.
Concrete, the normal curing described in S3 be maintenance 28 days under 20 ± 2 DEG C of environment with relative humidity more than 95%.
Compared to prior art, the present invention has following beneficial effect: 1) electrically conductive polyaniline is a kind of conducting polymer composite, the resistivity of the conducting concrete using polyaniline as conductive phase prepared according to proportioning raw materials provided by the invention and method can be reduced to 69.0 Ω cm, compressive strength can reach 35.7MPa, is applicable to industrial production completely; 2) electrically conductive polyaniline environmental stability good, nontoxic, synthesis cost low, therefore with the production cost of its conducting concrete being conductive phase also lower, performance is more lastingly stable, is a kind of environment friendly material; 3) preparation method provided by the invention is simple, no matter be electrically conductive polyaniline Ball milling in aqueous, or dispersion liquid and cement, being uniformly mixed of sand, be the routine operation of conventional equipment, producers are not needed again to grasp more production skills, do not need to consume too many energy (particle diameter of electrically conductive polyaniline own is less and easily levigate), be applicable to large-scale commercial production, have great promotional value yet.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples, only for explaining the present invention, are not intended to limit protection scope of the present invention.
The method used in the present invention, if no special requirements, is ordinary method, and reagent used in the present invention if no special requirements, is commercially available prod.
Embodiment 1
Take electrically conductive polyaniline as the preparation method of the conducting concrete of conductive phase, comprise the steps:
The parts by weight of each raw material all by same weight basis,
S1: carry out Ball milling process by after electrically conductive polyaniline (1-5S/cm) 90 parts, 110 parts, water and the mixing of dispersion agent Tego760W0.9 part, obtain the dispersion liquid of polyaniline in water;
S2: are added in stirrer together with whole dispersion liquids that complex cement 200 parts, 100 parts, river sand and S1 are prepared and fully stir, obtain the mixture that each raw material mixes;
S3: pour the mixture prepared in S2 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S4: taken out from maintaining box by the sample block in S3, to be placed under room temperature and drying conditions maintenance 7 days, to be able to the conducting concrete that polyaniline is conductive phase.
Embodiment 2
Take electrically conductive polyaniline as the preparation method of the conducting concrete of conductive phase, comprise the steps:
The parts by weight of each raw material all by same weight basis,
S1: carry out Ball milling process by after electrically conductive polyaniline (1-5S/cm) 30 parts, 70 parts, water and the mixing of dispersion agent Tego760W0.3 part, obtain the dispersion liquid of polyaniline in water;
S2: are added in stirrer together with whole dispersion liquids that composite Portland cement 100 parts, 100 parts, river sand and S1 are prepared and fully stir, obtain the mixture that each raw material mixes;
S3: pour the mixture prepared in S2 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S4: taken out from maintaining box by the sample block in S3, to be placed under room temperature and drying conditions maintenance 7 days, to be able to the conducting concrete that polyaniline is conductive phase.
Embodiment 3
Take electrically conductive polyaniline as the preparation method of the conducting concrete of conductive phase, comprise the steps:
The parts by weight of each raw material all by same weight basis,
S1: carry out Ball milling process by after electrically conductive polyaniline (1-5S/cm) 45 parts, 79 parts, water and the mixing of dispersion agent Tego760W0.45 part, obtain the dispersion liquid of polyaniline in water;
S2: are added in stirrer together with whole dispersion liquids that composite Portland cement 100 parts, 100 parts, river sand and S1 are prepared and fully stir, obtain the mixture that each raw material mixes;
S3: pour the mixture prepared in S2 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S4: taken out from maintaining box by the sample block in S3, to be placed under room temperature and drying conditions maintenance 7 days, to be able to the conducting concrete that polyaniline is conductive phase.
Embodiment 4
Take electrically conductive polyaniline as the preparation method of the conducting concrete of conductive phase, comprise the steps:
The parts by weight of each raw material all by same weight basis,
S1: carry out Ball milling process by after electrically conductive polyaniline (5-10S/cm) 150 parts, 170 parts, water and the mixing of dispersion agent Tego760W1.5 part, obtain the dispersion liquid of polyaniline in water;
S2: are added in stirrer together with whole dispersion liquids that composite Portland cement 200 parts, 200 parts, river sand and S1 are prepared and fully stir, obtain the mixture that each raw material mixes;
S3: pour the mixture prepared in S2 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S4: taken out from maintaining box by the sample block in S3, to be placed under room temperature and drying conditions maintenance 7 days, to be able to the conducting concrete that polyaniline is conductive phase.
Embodiment 5
Take electrically conductive polyaniline as the preparation method of the conducting concrete of conductive phase, comprise the steps:
The parts by weight of each raw material all by same weight basis,
S1: carry out Ball milling process by after electrically conductive polyaniline (5-10S/cm) 75 parts, 103 parts, water and the mixing of dispersion agent Tego760W0.75 part, obtain the dispersion liquid of polyaniline in water;
S2: are added in stirrer together with whole dispersion liquids that composite Portland cement 200 parts, 100 parts, river sand and S1 are prepared and fully stir, obtain the mixture that each raw material mixes;
S3: pour the mixture prepared in S2 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S4: taken out from maintaining box by the sample block in S3, to be placed under room temperature and drying conditions maintenance 7 days, to be able to the conducting concrete that polyaniline is conductive phase.
As can be known from the table data, the conducting concrete of prepared by the present invention with polyaniline is conductive phase has good conductive capability and larger ultimate compression strength, can be applied to completely in industrial production, the environmental stability of this conducting concrete is good simultaneously, under the condition such as strong acid or highly basic, act on the long period, its resistivity and ultimate compression strength have almost no change.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. be a conducting concrete for conductive phase with polyaniline, it is characterized in that, comprise the raw material of following parts by weight: cement 100-200 part, sand 100-200 part, electrically conductive polyaniline 15-150 part, dispersion agent 0.15-1.5 part, water 50-200 part.
2. according to claim 1 a kind of take polyaniline as the conducting concrete of conductive phase, it is characterized in that, comprise the raw material of following parts by weight: cement 150-200 part, sand 100-150 part, electrically conductive polyaniline 75-100 part, dispersion agent 0.75-1.5 part, water 100-150 part.
3. according to claim 1 a kind of take polyaniline as the conducting concrete of conductive phase, it is characterized in that, the specific conductivity of described electrically conductive polyaniline is 1-10S/cm.
4. according to claim 1 a kind of take polyaniline as the conducting concrete of conductive phase, it is characterized in that, described cement is composite Portland cement.
5. according to claim 1 a kind of take polyaniline as the conducting concrete of conductive phase, it is characterized in that, described sand is river sand.
6. according to claim 1 a kind of take polyaniline as the conducting concrete of conductive phase, it is characterized in that, described dispersion agent is Tego760W.
7. a kind of according to any one of claim 1 to 6 take polyaniline as the conducting concrete of conductive phase, and it is characterized in that, the part by weight of described dispersion agent and described electrically conductive polyaniline is 1:100.
8. described in any one of claim 1 to 7 take polyaniline as the preparation method of the conducting concrete of conductive phase, it is characterized in that, comprises the steps:
The parts by weight of each raw material press same weight basis,
S1: carry out Ball milling process by after electrically conductive polyaniline 15-150 part, water 50-200 part and the mixing of dispersion agent 0.15-1.5 part, obtain the dispersion liquid of polyaniline in water;
S2: are added in stirrer together with whole dispersion liquids that cement 100-200 part, sand 100-200 part and S1 are prepared and fully stir, obtain the mixture that each raw material mixes;
S3: pour the mixture prepared in S2 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S4: taken out from maintaining box by the sample block in S3, to be placed under room temperature and drying conditions maintenance 7 days, to be able to the conducting concrete that polyaniline is conductive phase.
9. according to claim 8 take polyaniline as the preparation method of the conducting concrete of conductive phase, and it is characterized in that, described in the dispersion liquid that S1 obtains, the particle diameter of polyaniline is below 100 μm.
10. according to claim 8 take polyaniline as the preparation method of the conducting concrete of conductive phase, it is characterized in that, the normal curing described in S3 is maintenance 28 days under the environment of 20 ± 2 DEG C and relative humidity more than 95%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510932928.8A CN105565737A (en) | 2015-12-15 | 2015-12-15 | Conducting concrete using polyaniline as conducting phase and preparation method thereof |
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| CN201510932928.8A CN105565737A (en) | 2015-12-15 | 2015-12-15 | Conducting concrete using polyaniline as conducting phase and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108046711A (en) * | 2017-12-30 | 2018-05-18 | 姜向军 | A kind of preparation method of conducting concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106278019B (en) * | 2016-08-04 | 2018-06-22 | 青岛理工大学 | Water-based polypyrrole cement based conductive composite material, preparation method and application |
| CN108046711A (en) * | 2017-12-30 | 2018-05-18 | 姜向军 | A kind of preparation method of conducting concrete |
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Application publication date: 20160511 |
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