CN109574576A - A kind of preparation method of composite conducting material - Google Patents
A kind of preparation method of composite conducting material Download PDFInfo
- Publication number
- CN109574576A CN109574576A CN201710899123.7A CN201710899123A CN109574576A CN 109574576 A CN109574576 A CN 109574576A CN 201710899123 A CN201710899123 A CN 201710899123A CN 109574576 A CN109574576 A CN 109574576A
- Authority
- CN
- China
- Prior art keywords
- cement
- graphite
- conducting material
- composite conducting
- weight ratio
- 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.)
- Pending
Links
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
The invention discloses a kind of preparation methods of composite conducting material, feature of present invention is to dispense steel fibre in a mold, in the high fluidity slurry injection mold for being again configured to cement graphite mortar and high efficiency water reducing agent in proportion, a kind of novel conductive construction material made of being conserved.The present invention solves the problems, such as complex process present in the prior art, high production cost and low efficiency.
Description
Technical field
The invention belongs to new material technology fields, and in particular to a kind of preparation method of composite conducting material.
Background technique
Cement-base composite material is as most large construction material, at present both at home and abroad to its modification in terms of carrying out electric conductivity
Method mainly has following three kinds of methods, it may be assumed that realizes materials conductive performance, this side using low-dosage steel fibre and steel cuttings as conductive phase
Method is to be limited volume content of steel fibers with traditional stirring technique forming composite by stirring technique and be difficult more than 1%.It is maximum
The shortcomings that be materials conductive performance (resistivity) stability it is poor, generally after one year due to steel fibre and steel cuttings corrosion and
Oxidative deactivation, resistivity, which increases, obtains 100 times or more up to initial value, substantially loses electric conductivity and cannot continue to make
With.Materials conductive performance is realized by conductive phase of carbon fiber, and this method is expensive due to carbon fiber, so that this side
The application of method is very uneconomical, thus affects it and use on a large scale.Material conductivity is realized using graphite as conductive phase
Energy；Materials conductive performance is realized using low-dosage steel fibre and steel cuttings as conductive phase；Materials conductive is realized by conductive phase of carbon fiber
Performance.These three methods can make the resistivity of composite material be reduced to 10 Ω .m hereinafter, generally can satisfy electric conductivity
Requirement, but also have some disadvantages: realizing materials conductive performance using graphite as conductive phase, this method is due to graphite
Incorporation, the intensity of material is decreased obviously, generally when graphite volume reaches 10% or so of cement weight, compression strength loss
Can be up to 90% or more, strength reduction to 10MPa is hereinafter, have been unable to meet structure stress requirement.
Summary of the invention
To solve the above problems, the invention adopts a technical scheme as: a kind of preparation method of composite conducting material, with steel fibre
Conductive phase of the peacekeeping graphite as composite material, using high fluidity cement graphite mortar grouting moulding process, which can make
Steel fiber volume ratio is up to 15% or more, and graphite volume is 10% or more of cement weight.The steel fibre and graphite of high additive exist
Conductive network is collectively formed in material matrix, resistivity of material is between 5 Ω .m, and compression strength is up to 80MPa or more, anti-folding
Intensity is up to 30MPa or more.
The beneficial effects of the present invention are: this composite material has lower resistivity and excellent mechanical property (pressure resistance
Degree is in 80MPa or more bending strength in 30MPa or more) and good resistivity long-time stability, and resistivity is without obvious within 2 years or more
Variation.Production method is simple and easy, at low cost, high-efficient, and stable product quality is economical and practical, to present invention offers more preferable
Prospects for commercial application.
Specific embodiment
The present invention will be further illustrated in the following example.
A kind of preparation method of composite conducting material, specifically includes the following steps: step 1. is by length 30-35mm, major diameter
Shaped steel fibres than 40-50 are uniformly dispensed in the mold of certain shapes, and steel fiber volume ratio is within the scope of 15%-16%.
The production of step 2. cement Abduction Chong silicon ash mortar
Cement use 42.5MPa portland cement, graphite use powder graphite, fineness 200-250 mesh, phosphorus content 96%-98%,
Sulfur content is less than 0.05%, and moisture content is less than 1%.Sand use fine sand, 125-150 μm of partial size.Cement mortar rate (cement+graphite+
Silicon ash and sand obtain weight ratio) it is 1: 1.25, the weight ratio of cement and silicon ash is 10: 1, and cement and graphite weight ratio are 10: 1.
High efficiency water reducing agent volume is the 1% of the sum of cement+graphite+silicon ash weight.Water-cement ratio (mixing water and cement+graphite+silicon ash
Weight ratio) it is 0.38.Cement graphite is poured into mortar mixer and is stirred 30-60 seconds, then sand is poured into blender and is stirred
It mixes 30-60 seconds, high efficiency water reducing agent is dissolved in mixing water to pour into blender slowly and is stirred 60 seconds.
Step 3. uniformly dispenses slurry injection step 1 made of step 2 in the mold of steel fibre, to keep slurry equal
It is filled in steel fibre layer evenly, mold can be made through appropriate vibration.What it is such as production is component, can be placed in 20 ± 2 DEG C of temperature, relatively
Maintenance 28 days, demoulding in fog room of the humidity greater than 90%.If field fabrication, one is covered on surface after injection forming
Layer plastic film was conserved to certain age.
Claims (2)
1. a kind of preparation method of composite conducting material, it is characterised in that: it is characterized in that using graphite and steel fibre as conduction
Phase, using fineness 180-200 mesh, the powder graphite of phosphorus content 96%, sand uses fine sand, and 125 μm of partial size；Cement mortar rate (cement+
The weight ratio of graphite+silicon ash and sand) it is 1: 1.25, the weight ratio of cement and silicon ash is 10: 1, and cement is with graphite weight ratio
10: 1, high efficiency water reducing agent volume is the 1% of the sum of cement+graphite+silicon ash weight, water-cement ratio (mixing water and cement+graphite+
Silicon ash weight ratio) it is 0.38, it is agitated that cement graphite mortar is made, cement base graphite steel fiber is prepared into using injection forming
Composite conducting material.
2. the preparation method of composite conducting material as described in claim 1, it is characterised in that: the steel fibre fineness is
200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710899123.7A CN109574576A (en) | 2017-09-28 | 2017-09-28 | A kind of preparation method of composite conducting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710899123.7A CN109574576A (en) | 2017-09-28 | 2017-09-28 | A kind of preparation method of composite conducting material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109574576A true CN109574576A (en) | 2019-04-05 |
Family
ID=65913878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710899123.7A Pending CN109574576A (en) | 2017-09-28 | 2017-09-28 | A kind of preparation method of composite conducting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109574576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393098A (en) * | 2020-03-16 | 2020-07-10 | 广东盖特奇新材料科技有限公司 | Conductive heating high-strength cement-based composite fiber material and preparation method thereof |
-
2017
- 2017-09-28 CN CN201710899123.7A patent/CN109574576A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393098A (en) * | 2020-03-16 | 2020-07-10 | 广东盖特奇新材料科技有限公司 | Conductive heating high-strength cement-based composite fiber material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102432239B (en) | Corrosion-resistant high-strength conductive concrete and preparation method thereof | |
| CN103121814B (en) | Lightweight concrete and preparation method and applications thereof | |
| CN104310921A (en) | Slag aggregate water permeable brick prepared from large mixing amount mineral admixtures and preparation method of slag aggregate water permeable brick | |
| CN106747224B (en) | The method for preparing insulating foam concrete using waste | |
| CN104829189B (en) | Phase-change energy-storing composite foam concrete block | |
| CN102452832B (en) | Straw cement-based microporous building material and preparation method thereof | |
| CN102603233A (en) | Preparation method of high-durability prestressed centrifugal concrete pile | |
| CN103541289A (en) | Colored high-titanium heavy slag permeable pavement brick and production method thereof | |
| CN102674774A (en) | Elastic anti-crack coating mortar and preparation process thereof | |
| CN104058695B (en) | A kind of sound barrier Fast Filling gravity mortar and preparation method thereof | |
| CN104402305A (en) | Artificial quartz stone sheet material and preparation method thereof | |
| CN104829202A (en) | Preparation method of electric-conductive self-leveling mortar | |
| CN103979879A (en) | Preparation of fiber-reinforced composite thermal-insulation board | |
| CN102173689A (en) | Method for preparing RPC (Reactive Powder Concrete) trench cover plate of high-speed railway passenger-dedicated line | |
| CN101941046B (en) | Composite sodium silicate binder for sand mold and preparing method thereof | |
| CN109574576A (en) | A kind of preparation method of composite conducting material | |
| CN109650825A (en) | A kind of concrete and its preparation method and application | |
| CN104827561B (en) | A kind of steam pressure PHC pile tube preparation methods without remaining slurry | |
| CN109053041A (en) | A kind of foam concrete block and preparation method thereof | |
| CN100384769C (en) | Method for preparing cement base graphite steel fiber composite conductive material | |
| CN104891905A (en) | Cement base insulator adhesive | |
| CN116462436A (en) | Conductive aggregate, intelligent cement composite material, and preparation method and application thereof | |
| CN103290915A (en) | Draining mesh board perforated strainer and manufacturing method thereof | |
| CN114455902B (en) | Alkali-activated low-calcium cementing material retarding binder based on electromagnetic induction heating coagulation regulating mechanism and preparation method and application thereof | |
| CN109053105A (en) | Modified rammed earth material of a kind of gypsum and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190405 |