CN108264302A - A kind of method that ionic liquid improves cement-base composite material thermoelectricity capability - Google Patents
A kind of method that ionic liquid improves cement-base composite material thermoelectricity capability Download PDFInfo
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- CN108264302A CN108264302A CN201810085163.2A CN201810085163A CN108264302A CN 108264302 A CN108264302 A CN 108264302A CN 201810085163 A CN201810085163 A CN 201810085163A CN 108264302 A CN108264302 A CN 108264302A
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- cement
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- 239000002131 composite material Substances 0.000 title claims abstract description 100
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000005619 thermoelectricity Effects 0.000 title claims abstract description 29
- KYCQOKLOSUBEJK-UHFFFAOYSA-M 1-butyl-3-methylimidazol-3-ium;bromide Chemical compound [Br-].CCCCN1C=C[N+](C)=C1 KYCQOKLOSUBEJK-UHFFFAOYSA-M 0.000 claims abstract description 47
- 239000004568 cement Substances 0.000 claims abstract description 36
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 30
- 239000004917 carbon fiber Substances 0.000 claims abstract description 30
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 23
- 239000010439 graphite Substances 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 21
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims abstract description 10
- 229910021653 sulphate ion Inorganic materials 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 8
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 7
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 7
- 235000011128 aluminium sulphate Nutrition 0.000 claims description 7
- RAXXELZNTBOGNW-UHFFFAOYSA-N 1H-imidazole Chemical compound C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 6
- IQQRAVYLUAZUGX-UHFFFAOYSA-N 1-butyl-3-methylimidazolium Chemical compound CCCCN1C=C[N+](C)=C1 IQQRAVYLUAZUGX-UHFFFAOYSA-N 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims description 2
- 150000001450 anions Chemical class 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 abstract 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 abstract 2
- 239000003292 glue Substances 0.000 description 12
- 239000004576 sand Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009791 electrochemical migration reaction Methods 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000005616 pyroelectricity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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
- C04B28/06—Aluminous 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/128—Heterocyclic nitrogen compounds
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of method that ionic liquid improves cement-base composite material thermoelectricity capability, in cement-base composite material preparation process, 1 butyl of addition ionic liquid, 3 methylimidazole bromide ([Bmim] Br).1 butyl of ionic liquid, 3 methylimidazole bromide ([Bmim] Br), carbon fiber, expanded graphite, sulphate aluminium cement and water are uniformly mixed using stirring technique, then compacting forms cement-base composite material.Cement-base composite material prepared by the present invention has the characteristics that Seebeck coefficients are high, thermoelectricity capability is good, at low cost, simple production process.The present invention in the case where increasing substantially Seebeck coefficients, due to the use of Ionic Liquids Ionic mobility it is high, the conductivity of cement-base composite material is made still to be up to 0.078S/cm, significantly improves the thermoelectricity capability of cement-base composite material.The step of 80 DEG C of pretreatments of cement-base composite material of the present invention, it can be achieved that ionic liquid being uniformly distributed in cement matrix, further enhances the Seebeck coefficients and thermoelectricity capability of cement-base composite material.
Description
Technical field
The invention belongs to the preparing technical field of cement-base composite material, more particularly to a kind of ionic liquid improves cement base
The method of composite material thermoelectricity capability.
Background technology
With the development of intelligent building, cement-based material will not only have good mechanical property and durability, simultaneously also
With certain special functional characteristics, such as voltage-dependent characteristic, piezoelectric property, electromagnetic shielding, thermoelectricity capability.With thermoelectricity capability
Cement-base composite material is alleviating the fields such as Summer urban heat island effect, collection of energy, winter road low energy consumption deicing or snow melting tool
Have broad application prospects.But there are still Seebeck coefficients are low, conductivity is low, heat to electricity conversion for cement-base composite material at present
Inefficient, the problems such as stability is poor, seriously limit its popularization and application.The side of preparation process is adulterated and improved using component
Method improves the thermoelectricity capability of cement-base composite material, has become the research hotspot in the field.
Document " T.J.Abraham, D.R.Macfarlane, J.M.Pringle, Energy and Environmental
Science,2013,6(9):2639-2645 " describes a kind of thermoelectrochemistry battery for thermal energy collecting.Its ionic liquid electricity
Matter is solved by the parsing of zwitterion and is reset with up to 1.5-2.2mVK-1Seebeck coefficients, cell power density is big
In 0.5Wm-2.But since battery is small, cause collection of energy rate not high, should not be used in large area and collect thermal energy.And electricity
Pond uses platinum electrode, and cost is too high, it is difficult to large-scale application.
Document " H.Y.Jia, X.L.Tao, Y.P.Wang, Advanced Electronic Materials, 2016,2:
1600136 " disclose a kind of ionic liquid flexibility thermoelectric converter, and tens millivolts of heat can be generated under smaller temperature gradient
Potential, Seebeck coefficients are up to 1.069mVK-1, however the electric conductivity of ionic liquid is poor, leads to this flexible thermoelectric converter
ZT values are relatively low.
Chinese patent 201610422024.5 discloses " a kind of zinc oxide complex cement base thermoelectricity material and its preparation side
Method ".This method can be improved the Seebeck coefficients of cement-base composite material by adding nano zine oxide in cement matrix
To 1500 μ V/ DEG C.But since the cement matrix after hardening and nano zine oxide conductivity are relatively low, this method is caused finally to be made
Standby cement-base composite material conductivity is relatively low, and comprehensive thermoelectricity capability is also poor.
Ionic liquid is used for cement-based material field, and the thermoelectricity capability for improving thermoelectricity cement-base composite material yet there are no report
Road.
Invention content
The shortcomings of in order to overcome the synthesis thermoelectricity capability of above-mentioned cement-base composite material of the prior art poor, the present invention
A kind of method for being designed to provide ionic liquid and improving cement-base composite material thermoelectricity capability,
To achieve these goals, the technical solution adopted by the present invention is：
A kind of method that ionic liquid improves cement-base composite material thermoelectricity capability, in cement-base composite material preparation process
In, add ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br).
The cement-base composite material is expanded graphite/carbon fiber cement-base composite material.
The cement that the cement-base composite material uses is sulphate aluminium cement.
Using stirring technique by ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br), carbon fiber, expansion stone
Ink, sulphate aluminium cement and water uniformly mix, and then compacting forms cement-base composite material.
The ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br) is by glyoxaline cation [Bmim]+And it is cloudy from
Sub- Br-Composition, molecular weight 219.12.
Additive amount of the ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br) in cement-base composite material
1.0~3.0wt% for cement consumption original in composite material.
The Seebeck coefficients of cement-base composite material increase with the increase of ionic liquid [Bmim] Br additive amounts.
The conductivity of cement-base composite material reduces with the increase of ionic liquid [Bmim] Br additive amounts.
The power factor of cement-base composite material increases with the increase of ionic liquid [Bmim] Br additive amounts.
The cement-base composite material of ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br) is added before maintenance
It can be pre-processed, the method for pretreatment is that sample is heat-treated 3 hours postcoolings to room temperature at 80 DEG C.
Compared with prior art, the beneficial effects of the invention are as follows：
Cement-base composite material prepared by the present invention is with Seebeck coefficients are high, thermoelectricity capability is good, at low cost, production work
The features such as skill is simple.The present invention in the case where increasing substantially Seebeck coefficients, due to the use of Ionic Liquids Ionic migration
Rate is high, and the conductivity of cement-base composite material is made still to be up to 0.078S/cm, significantly improves the pyroelectricity of cement-base composite material
Energy.The step of 80 DEG C of pretreatments of cement-base composite material of the present invention, it can be achieved that ionic liquid being uniformly distributed in cement matrix,
Further enhance the Seebeck coefficients and thermoelectricity capability of cement-base composite material.
Description of the drawings
Fig. 1 is the expanded graphite/carbon fiber cement-base composite material of Doped ions liquid [Bmim] Br of the present invention without pre- place
The conductivity of reason and the relation curve of temperature.
Fig. 2 is the expanded graphite/carbon fiber cement-base composite material of Doped ions liquid [Bmim] Br of the present invention without pre- place
The Seebeck coefficients of reason and the relation curve of temperature.
Fig. 3 is the expanded graphite/carbon fiber cement-base composite material of Doped ions liquid [Bmim] Br of the present invention without pre- place
The power factor of reason and the relation curve of temperature.
Fig. 4 is the expanded graphite/carbon fiber cement-base composite material pretreatment of Doped ions liquid [Bmim] Br of the present invention
Conductivity later and the relation curve of temperature.
Fig. 5 is the expanded graphite/carbon fiber cement-base composite material pretreatment of Doped ions liquid [Bmim] Br of the present invention
Seebeck coefficients and the relation curve of temperature later.
Fig. 6 is the expanded graphite/carbon fiber cement-base composite material pretreatment of Doped ions liquid [Bmim] Br of the present invention
Power factor later and the relation curve of temperature.
IL represents ionic liquid [Bmim] Br, CF and represents carbon fiber in figure, and EG represents expanded graphite.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1：By sulphate aluminium cement, PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids according to
Mass ratio is 100.0：1.2：5.0：1.0 ratio is for use after weighing.
Chopped carbon fiber is dispersed into monofilament state first with glue sand agitator.Secondly, by load weighted aluminium sulfate
Cement, monofilament state PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids are poured into glue sand agitator and are stirred successively
It mixes 3 minutes, then the mixture after stirring is poured into simpson mill and continues that stirring is uniform to color, and stirring is completed to be placed on
In steel die, cement-base composite material green body is prepared by being press-formed technique, then makes green body in more than 90% humidity, temperature
Maintenance obtains the cement-base composite material of ionic liquid doping to the complete aquation of cement under the conditions of 20-25 DEG C of degree.
The conductivity of cement-base composite material is measured using four electrode methods, and measures Seebeck coefficients simultaneously.This is compound
For material sample in 72 DEG C of temperature, conductivity is 0.0097Scm as shown in Figure 1-1, Fig. 2 understand Seebeck absolute coefficients be
29.09μV/℃.Composite material Seebeck coefficients improve 454.53% compared with the cement-base composite material for being not added with ionic liquid,
Fig. 3 understands that power factor improves 255.76% compared with the cement-base composite material for being not added with ionic liquid.
Embodiment 2：By sulphate aluminium cement, PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids according to
Mass ratio is 100.0：1.2：5.0：2.0 ratio is for use after weighing.
Chopped carbon fiber is dispersed into monofilament state first with glue sand agitator.Secondly, by load weighted aluminium sulfate
Cement, monofilament state PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids are poured into glue sand agitator and are stirred successively
It mixes 3 minutes, then the mixture after stirring is poured into simpson mill and continues that stirring is uniform to color, and stirring is completed to be placed on
In steel die, cement-base composite material green body is prepared by being press-formed technique, then makes green body in more than 90% humidity, temperature
Maintenance obtains the cement-base composite material of ionic liquid doping to the complete aquation of cement under the conditions of 20-25 DEG C of degree.
The conductivity of cement-base composite material is measured using four electrode methods, and measures Seebeck coefficients simultaneously.This is compound
For material sample in 72 DEG C of temperature, conductivity is 0.0079Scm as shown in Figure 1-1, Fig. 2 understand Seebeck absolute coefficients be
S=48.12 μ V/ DEG C.Composite material Seebeck coefficients are improved compared with the cement-base composite material for being not added with ionic liquid
751.88%, Fig. 3 understand that power factor improves 569.16% compared with the cement-base composite material for being not added with ionic liquid.
Embodiment 3：By sulphate aluminium cement, PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids according to
Mass ratio is 100.0：1.2：5.0：3.0 ratio is for use after weighing.
Chopped carbon fiber is dispersed into monofilament state first with glue sand agitator.Secondly, by load weighted aluminium sulfate
Cement, monofilament state PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids are poured into glue sand agitator and are stirred successively
It mixes 3 minutes, then the mixture after stirring is poured into simpson mill and continues that stirring is uniform to color, and stirring is completed to be placed on
In steel die, cement-base composite material green body is prepared by being press-formed technique, then makes green body in more than 90% humidity, temperature
Maintenance obtains the cement-base composite material of ionic liquid doping to the complete aquation of cement under the conditions of 20-25 DEG C of degree.
The conductivity of cement-base composite material is measured using four electrode methods, and measures Seebeck coefficients simultaneously.This is compound
For material sample in 72 DEG C of temperature, conductivity is 0.0064Scm as shown in Figure 1-1, Fig. 2 understand Seebeck absolute coefficients be
S=112.95 μ V/ DEG C.Composite material Seebeck coefficients are improved compared with the cement-base composite material for being not added with ionic liquid
1764.84%, Fig. 3 understand that power factor improves 2621.18% compared with the cement-base composite material for being not added with ionic liquid.
Embodiment 4：By sulphate aluminium cement, PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids according to
Mass ratio is 100.0：1.2：5.0：1.0 ratio is for use after weighing.
Chopped carbon fiber is dispersed into monofilament state first with glue sand agitator.Secondly, by load weighted aluminium sulfate
Cement, monofilament state PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids are poured into glue sand agitator and are stirred successively
It mixes 3 minutes, then the mixture after stirring pours into simpson mill to continue stirring uniform to color.Stirring is completed to be placed on
In steel die, cement-base composite material green body is prepared by being press-formed technique.Then by green body in 80 DEG C of heat pre-treatments 3
Hour postcooling to room temperature, then under the conditions of more than 90% humidity, 20-25 DEG C of temperature maintenance to the complete aquation of cement, obtain from
The cement-base composite material of sub- liquid doping.
The conductivity of cement-base composite material is measured using four electrode methods, and measures Seebeck coefficients simultaneously.This is compound
For material sample in 72 DEG C of temperature, conductivity is 0.0063Scm as shown in Figure 4-1, Fig. 5 understand Seebeck absolute coefficients be
25.50μV/℃.Composite material Seebeck coefficients improve 398.44% compared with the cement-base composite material for being not added with ionic liquid,
Fig. 6 understands that power factor improves 124.92% compared with the cement-base composite material for being not added with ionic liquid.
Embodiment 5：By sulphate aluminium cement, PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids according to
Mass ratio is 100.0：1.2：5.0：2.0 ratio is for use after weighing.
Chopped carbon fiber is dispersed into monofilament state first with glue sand agitator.Secondly, by load weighted aluminium sulfate
Cement, monofilament state PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids are poured into glue sand agitator and are stirred successively
It mixes 3 minutes, then the mixture after stirring pours into simpson mill to continue stirring uniform to color.Stirring is completed to be placed on
In steel die, cement-base composite material green body is prepared by being press-formed technique.Then by green body in 80 DEG C of heat pre-treatments 3
Hour postcooling to room temperature, then under the conditions of more than 90% humidity, 20-25 DEG C of temperature maintenance to the complete aquation of cement, obtain from
The cement-base composite material of sub- liquid doping.
The conductivity of cement-base composite material is measured using four electrode methods, and measures Seebeck coefficients simultaneously.This is compound
For material sample in 72 DEG C of temperature, conductivity is 0.0034Scm as shown in Figure 4-1, Fig. 5 understand Seebeck absolute coefficients be
S=168.54 μ V/ DEG C.Composite material Seebeck coefficients are improved compared with the cement-base composite material for being not added with ionic liquid
2633.43%, Fig. 6 understand that power factor improves 3044.24% compared with the cement-base composite material for being not added with ionic liquid.
Embodiment 6：By sulphate aluminium cement, PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids according to
Mass ratio is 100.0：1.2：5.0：3.0 ratio is for use after weighing.
Chopped carbon fiber is dispersed into monofilament state first with glue sand agitator.Secondly, by load weighted aluminium sulfate
Cement, monofilament state PAN bases chopped carbon fiber, expanded graphite and [Bmim] Br ionic liquids are poured into glue sand agitator and are stirred successively
It mixes 3 minutes, then the mixture after stirring pours into simpson mill to continue stirring uniform to color.Stirring is completed to be placed on
In steel die, cement-base composite material green body is prepared by being press-formed technique.Then by green body in 80 DEG C of heat pre-treatments 3
Hour postcooling to room temperature, then under the conditions of more than 90% humidity, 20-25 DEG C of temperature maintenance to the complete aquation of cement, obtain from
The cement-base composite material of sub- liquid doping.
The conductivity of cement-base composite material is measured using four electrode methods, and measures Seebeck coefficients simultaneously.This is compound
For material sample in 72 DEG C of temperature, conductivity is 0.0031Scm as shown in Figure 4-1, Fig. 5 understand Seebeck absolute coefficients be
573.70μV/℃.Composite material Seebeck coefficients are improved compared with the cement-base composite material for being not added with ionic liquid
8964.06%, Fig. 6 understand that power factor improves 30899.38% compared with the cement-base composite material for being not added with ionic liquid.
Claims (10)
1. a kind of method that ionic liquid improves cement-base composite material thermoelectricity capability, which is characterized in that in cement base composite wood
Expect in preparation process, add ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br).
2. the method that ionic liquid improves cement-base composite material thermoelectricity capability according to claim 1, which is characterized in that institute
Cement-base composite material is stated as expanded graphite/carbon fiber cement-base composite material.
3. the method that ionic liquid improves cement-base composite material thermoelectricity capability according to claim 1, which is characterized in that institute
It is sulphate aluminium cement to state the cement that cement-base composite material uses.
4. the method that ionic liquid improves cement-base composite material thermoelectricity capability according to claim 1, which is characterized in that profit
With stirring technique by ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br), carbon fiber, expanded graphite, aluminium sulfate
Cement and water uniformly mix, and then compacting forms cement-base composite material.
5. the method that ionic liquid improves cement-base composite material thermoelectricity capability according to claim 1, which is characterized in that institute
Ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br) is stated by glyoxaline cation [Bmim]+And anion Br-Composition, point
Son amount is 219.12.
6. the method that ionic liquid improves cement-base composite material thermoelectricity capability according to claim 1, which is characterized in that institute
Additive amount of the ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br) in cement-base composite material is stated as composite material
In original cement consumption 1.0~3.0wt%.
7. according to the method that the ionic liquid of claim 1 or 6 improves cement-base composite material thermoelectricity capability, feature exists
In the Seebeck coefficients of cement-base composite material increase with the increase of ionic liquid [Bmim] Br additive amounts.
8. according to the method that the ionic liquid of claim 1 or 6 improves cement-base composite material thermoelectricity capability, feature exists
In the conductivity of cement-base composite material reduces with the increase of ionic liquid [Bmim] Br additive amounts.
9. according to the method that the ionic liquid of claim 1 or 6 improves cement-base composite material thermoelectricity capability, feature exists
In the power factor of cement-base composite material increases with the increase of ionic liquid [Bmim] Br additive amounts.
10. the method that ionic liquid improves cement-base composite material thermoelectricity capability according to claim 1, which is characterized in that
The cement-base composite material of addition ionic liquid 1-butyl-3-methyl imidazolium bromide ([Bmim] Br) is located in advance before maintenance
Reason, the method for pretreatment are that sample is heat-treated 3 hours postcoolings to room temperature at 80 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582527A (en) * | 2020-12-13 | 2021-03-30 | 安徽大学 | Preparation method of graphite-doped GeS2 thermoelectric material |
| CN116283137A (en) * | 2023-02-21 | 2023-06-23 | 清华大学 | Thermoelectric cement-based composite material, and preparation method and application thereof |
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| EP2239787A1 (en) * | 2008-01-25 | 2010-10-13 | Xavier Cerón Parisi | Thermoelectric solar plate |
| CN103011901A (en) * | 2012-12-17 | 2013-04-03 | 张仕霖 | Thermal-insulating and energy-saving ceramic tile |
| CN105274598A (en) * | 2015-11-18 | 2016-01-27 | 天津农学院 | Method for preparing room temperature n-type BiTeSe thermoelectric material film in ionic liquid through electrolytic deposition |
| CN106186944A (en) * | 2016-07-13 | 2016-12-07 | 西安建筑科技大学 | A kind of method improving cement-base composite material thermoelectricity capability |
| CN106220108A (en) * | 2016-07-26 | 2016-12-14 | 西安建筑科技大学 | A kind of method by moisture control cement-base composite material Seebeck coefficient |
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2018
- 2018-01-29 CN CN201810085163.2A patent/CN108264302B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2239787A1 (en) * | 2008-01-25 | 2010-10-13 | Xavier Cerón Parisi | Thermoelectric solar plate |
| CN103011901A (en) * | 2012-12-17 | 2013-04-03 | 张仕霖 | Thermal-insulating and energy-saving ceramic tile |
| CN105274598A (en) * | 2015-11-18 | 2016-01-27 | 天津农学院 | Method for preparing room temperature n-type BiTeSe thermoelectric material film in ionic liquid through electrolytic deposition |
| CN106186944A (en) * | 2016-07-13 | 2016-12-07 | 西安建筑科技大学 | A kind of method improving cement-base composite material thermoelectricity capability |
| CN106220108A (en) * | 2016-07-26 | 2016-12-14 | 西安建筑科技大学 | A kind of method by moisture control cement-base composite material Seebeck coefficient |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582527A (en) * | 2020-12-13 | 2021-03-30 | 安徽大学 | Preparation method of graphite-doped GeS2 thermoelectric material |
| CN112582527B (en) * | 2020-12-13 | 2022-12-02 | 安徽大学 | Preparation method of graphite-doped GeS2 thermoelectric material |
| CN116283137A (en) * | 2023-02-21 | 2023-06-23 | 清华大学 | Thermoelectric cement-based composite material, and preparation method and application thereof |
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| CN108264302B (en) | 2020-07-24 |
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