CN112979223A - Heat-conducting anti-cracking high-ductility geopolymer composite material and preparation method thereof - Google Patents
Heat-conducting anti-cracking high-ductility geopolymer composite material and preparation method thereof Download PDFInfo
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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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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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
- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention discloses a heat-conducting anti-cracking high-ductility geopolymer composite material and a preparation method thereof, wherein the geopolymer composite material comprises the following components: aluminum-silicon mineral material, nano material and alkaline composite catalyst; the aluminum-silicon-based mineral material comprises fly ash and attapulgite, the nano material comprises nano graphite powder and nano zirconia, the fiber material comprises ceramic fiber and calcium sulfate whisker, the chemical admixture comprises a water reducing agent, a defoaming agent, a retarder and a fiber dispersing agent, and the alkaline composite catalyst comprises sodium methoxide, sodium ethoxide, hydrotalcite and water-soluble sodium stearate. The heat-conducting anti-cracking high-ductility geopolymer composite material provided by the invention is formed by taking an aluminum-silicon mineral material, a nano material and a fiber material as main raw materials, carrying out geopolymerization reaction under the action of an alkaline composite catalyst and a chemical additive, and carrying out forming, curing, coagulation and hardening, and can greatly improve the ductility, toughness and crack resistance of the geopolymer material.
Description
Technical Field
The invention relates to a geopolymer and a preparation method thereof, in particular to a heat-conducting anti-cracking high-ductility geopolymer composite material and a preparation method thereof.
Background
The geopolymer material is firstly proposed by the French people Davidovits in 1978, and has a history of more than 40 years so far, and the geopolymer is formed by depolymerizing and breaking silicon-oxygen covalent bonds and aluminum-oxygen covalent bonds of aluminum-silicon raw materials under the action of a catalyst, recombining and generating silicon-oxygen tetrahedrons and aluminum-oxygen tetrahedrons, and finally carrying out reverse polycondensation to form a cage-shaped structure of a three-dimensional network.
The currently commonly used aluminum-silicon raw materials are fly ash, kaolin, ground slag, micro silicon powder and the like, and the catalyst is usually caustic alkali, water glass and the like; compared with the traditional cement, the geopolymer serving as a novel cementing material has the advantages of lower carbon, environmental protection, energy conservation and emission reduction in the production process. However, the geopolymer material has certain disadvantages under the curing conditions of normal temperature and normal pressure, such as: low early strength, poor toughness, low ductility, easy cracking, etc.
Disclosure of Invention
The invention aims to solve the technical problem of providing a heat-conducting anti-cracking high-ductility polymer composite material and a preparation method thereof, which have better toughness, ductility, crack resistance and heat conductivity, and lead the utilization of waste resources to develop towards the direction of high added value, sustainable development and low carbon environmental protection.
The invention adopts the technical scheme to solve the technical problems and provides a heat-conducting anti-cracking high-ductility polymer composite material which comprises the following components: aluminum-silicon mineral material, nano material and alkaline composite catalyst; the aluminum-silicon-based mineral material comprises fly ash and attapulgite, the nano material comprises nano graphite powder and nano zirconia, the fiber material comprises ceramic fiber and calcium sulfate whisker, the chemical admixture comprises a water reducing agent, a defoaming agent, a retarder and a fiber dispersing agent, and the alkaline composite catalyst comprises sodium methoxide, sodium ethoxide, hydrotalcite and water-soluble sodium stearate.
Further, the fly ash is I-grade ash or II-grade ash.
Further, the attapulgite is powdered magnesium aluminum silicate clay with a chain layered structure, and the fineness of the clay is 200-300 meshes.
Further, the components are mixed according to the following parts by weight:
the invention also provides a preparation method of the heat-conducting anti-cracking high-ductility polymer composite material for solving the technical problems, which comprises the following steps: s1) uniformly mixing the aluminum-silicon mineral material, the nano material and the alkaline composite catalyst according to the preset weight part to obtain a mixture A; s2), adopting a water-solid ratio of 0.28-0.40, uniformly mixing and dispersing the fiber material and the chemical admixture in water of about 1/2 according to a predetermined weight part, and obtaining a mixture B; s3) putting the mixture A and the residual 1/2 of water into a mortar stirrer, stirring for 1-2min until the mixture is uniform, adding the mixture B while stirring, and finally stirring for 2-3min until the mixture is uniform to obtain a mixture C; s4), forming, curing, coagulating and hardening the mixture C to finally obtain the heat-conducting anti-cracking high-ductility polymer composite material.
Further, nanometer graphite powder is regeneration graphite powder, retrieves lithium cell negative pole graphite material among cell-phone, computer, electric automobile, through pickling, washing, heat treatment, gets rid of most heavy metal residues, smashes through the screening of nanometer screen cloth with superfine rubbing crusher and obtains, control granularity index: d100 is less than 1000nm, D50 is less than 400nm, and the carbon content is more than 98%; the nano zirconia is white solid powder, the zirconia content is more than 98%, and the granularity is 20-80 nm.
Furthermore, the ceramic fiber is aluminum silicate fiber, the diameter of a monofilament is 3-6 μm, the length of the monofilament is 3-9mm, and the tensile strength of the monofilament is more than 25 GPa; the calcium sulfate whisker is white powdery gypsum fiber, the microstructure is fibrous or whisker-shaped single crystal, the content of calcium sulfate is more than 98 percent, the average length is 50-100 mu m, and the average diameter is 1-4 mu m.
Further, the water reducing agent is a powdery naphthalene water reducing agent or a powdery polycarboxylic acid water reducing agent, and the water reducing rate is more than 15%; the defoaming agent is polyether type or organic silicon type; the retarder is a hydroxycarboxylic acid salt; the fiber dispersing agent is formed by compounding an inorganic dispersing agent and an organic dispersing agent. A
Further, the fiber dispersing agent is compounded by inorganic alkali metal phosphate and organic polyacrylamide.
Further, the sodium methoxide and sodium ethoxide are white solid powderThe contents are all more than 98 percent; the hydrotalcite is powder roasted magnalium hydrotalcite with the specific surface area of 200-300m2(ii)/g; the water-soluble sodium stearate is white powder, and the content of the white powder is more than 98 percent.
Compared with the prior art, the invention has the following beneficial effects: the heat-conducting anti-cracking high-ductility geopolymer composite material provided by the invention is formed by taking an aluminum-silicon mineral material, a nano material and a fiber material as main raw materials, carrying out geopolymerization reaction under the action of an alkaline composite catalyst and a chemical additive, and carrying out forming, curing, coagulation and hardening, and can greatly improve the ductility, toughness and crack resistance of the geopolymer material. Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) compared with the traditional geopolymer material, the modified geopolymer material has better toughness, ductility, crack resistance and thermal conductivity, and the utilization of waste resources is developed towards the directions of high added value, sustainable development and low carbon environmental protection.
(2) Sodium methoxide, sodium ethoxide, water-soluble sodium stearate and hydrotalcite are used as alkaline composite catalysts, and compared with traditional caustic alkali and water glass catalysts, the alkaline composite catalysts have good alkaline catalytic effects and are beneficial to improving the early strength of geopolymers.
Detailed Description
The present invention will be further described with reference to the following examples.
The invention provides a heat-conducting anti-cracking high-ductility geopolymer composite material which comprises the following components in parts by weight:
specifically, the fly ash adopts I-grade or II-grade ash with the screen residue of a 45-micron square-hole sieve of less than 8 percent, the loss on ignition of less than 5 percent and the water demand ratio of less than 105 percent.
The attapulgite is a magnesium aluminum silicate clay mineral with a chain layered structure, and is in a powder shape with the fineness of 200-300 meshes; the structure has lattice displacement, the crystal is needle-shaped, fibrous or fibrous assembly, the cation exchange performance is realized, the dispersibility in geopolymer slurry is good, and the shrinkage after drying is small; the various characteristics of the material are beneficial to improving the fluidity and the stability of the geopolymer material, a three-dimensional net structure is formed between a chain structure and a layered structure, and the mechanical property of the material is improved.
The water reducing agent is a powdery naphthalene water reducing agent or a powdery polycarboxylic acid water reducing agent, and the water reducing rate is more than 15%.
The defoaming agent is polyether type or organic silicon type and is powdery, and the effective component is more than 99%.
The retarder is at least one of hydroxyl carboxylate, tartaric acid, citric acid and sodium gluconate.
The fiber dispersing agent is formed by compounding an inorganic dispersing agent and an organic dispersing agent, and is preferably compounded by sodium tripolyphosphate and polyacrylamide.
Nanometer graphite powder is regeneration graphite powder, retrieves lithium cell negative pole graphite material among cell-phone, computer, electric automobile, through acid leaching, washing, heat treatment, gets rid of most heavy metal and remains, uses superfine rubbing crusher to smash and obtain through the screening of nanometer screen cloth, satisfies the granularity index: d100 is less than 1000nm, D50 is less than 400nm, and the carbon content is more than 98%; it is a hexagonal layered crystal structure that improves the toughness and thermal conductivity of geopolymer materials.
The nano zirconia is white solid powder, the zirconia content is more than 98%, and the granularity is 20-80 nm; the material is added into geopolymer material to compound with aluminum-silicon material, so as to raise toughness, bending strength and heat conductivity of geopolymer material.
The ceramic fiber is aluminum silicate fiber, the diameter of a monofilament is 3-6 mu m, the length of the monofilament is 3-9mm, and the tensile strength of the monofilament is more than 25 GPa; the aluminum oxide is one of the main components, and part of the aluminum oxide can participate in geopolymer reaction, so that the integrity of the microstructure of the geopolymer material is improved, and the aim of improving the toughness is finally fulfilled.
The calcium sulfate whisker is white powdery gypsum fiber, the microstructure is fibrous or whisker-shaped single crystal, the content of calcium sulfate is more than 98 percent, the average length is 50-100 mu m, and the average diameter is 1-4 mu m; the calcium sulfate whisker is doped into the geopolymer, and the growth of the whisker is promoted under the action of the surfactant, so that the toughness of the geopolymer material is improved.
The sodium methoxide and the sodium ethoxide are white solid powder, and the content of the sodium methoxide and the content of the sodium ethoxide are both more than 98 percent; sodium methoxide and sodium ethoxide are easily dissolved in water to be decomposed into methanol, ethanol and sodium hydroxide, and certain heat is released, so that the catalysis effect on geopolymerization is achieved, and the early strength of the geopolymer material is further improved.
The hydrotalcite is powdery roasted magnesium aluminum hydrotalcite with the specific surface area of 200-300m2/g, is a layered double hydroxide, has exchangeable interlayer ions, and is compounded with sodium methoxide, sodium ethoxide and water-soluble sodium stearate to improve the reaction rate and quality of geopolymer.
The water-soluble sodium stearate is white powder, the content of the water-soluble sodium stearate is more than 98%, the water-soluble sodium stearate is an anionic surfactant, the aqueous solution is alkaline, the growth of calcium sulfate whiskers is promoted to a certain extent, and the toughness of the geopolymer is improved.
The invention also provides a preparation method of the heat-conducting anti-cracking high-ductility geopolymer composite material, which comprises the following steps:
s1) uniformly mixing the aluminum-silicon mineral material, the nano material and the alkaline composite catalyst to obtain a mixture A;
s2) mixing and dispersing the fiber material and the chemical admixture uniformly in water consumption of about 1/2 by adopting a water-solid ratio of 0.28-0.40 to obtain a mixture B;
s3) putting the mixture A and the residual 1/2 of water into a mortar stirrer, stirring for 1-2min until the mixture is uniform, adding the mixture B while stirring, and finally stirring for 2-3min until the mixture is uniform to obtain a mixture C;
s4), forming, curing, coagulating and hardening the mixture C to finally obtain the heat-conducting anti-cracking high-ductility polymer composite material.
In order to verify various mechanical properties of the heat-conducting anti-cracking high-ductility geopolymer composite material prepared by the invention, the following mechanical property tests are carried out on the geopolymer composite material:
(1) flexural and compressive strength test
Referring to standard GB/T17671 cement mortar Strength test method (ISO method), a 40mm × 40mm × 160mm prismatic test block of geopolymer composite material is prepared, the test block is demoulded after 24h, and is cured in a standard curing box, and a cement flexural and compressive strength tester is used for measuring the flexural and compressive strength of the geopolymer composite material at each age.
(2) Axial tensile Strength test
According to the reference standards GB/T50081 concrete physical mechanical property test method standard and T/CBMF37-2018/T/CCPA 7 ultra-high performance concrete basic property and test method, a geopolymer composite material special-shaped test block is prepared by using a pre-embedded stud test piece or a stud-free test piece test mould, the test block is removed after 24h, the test block is maintained in a standard maintenance box, and the axial tensile strength and the ultimate tensile strain of the geopolymer composite material in the 28d age period are measured by using a concrete axial tensile testing machine or a universal testing machine.
(1) Cracking resistance test
A test block is prepared by referring to a standard JC/T951 test method for cracking resistance of cement mortar, and the cracking resistance of the geopolymer composite material is measured by continuously blowing the test block for 24 hours in a room with the temperature of 20 +/-3 ℃ and the relative humidity of 60 +/-5 percent RH.
(4) Test of Heat conductivity
The heat conductivity of the geopolymer composite material is measured by using a heat conductivity instrument and a cylindrical iron mold with the diameter of 200mm multiplied by 400mm according to the GB/T50081 concrete physical mechanical property test method standard.
Example 1:
the single fly ash based polymer material comprises the following components in parts by weight:
55 parts of fly ash, 0.8 part of naphthalene water reducer, 0.05 part of polyether type defoaming agent, 0.15 part of tartaric acid, 10 parts of sodium hydroxide, 20 parts of sodium silicate (modulus is 1.5 and Baume degree is 50%), 14 parts of water, and the calculated water-solid ratio is 0.34.
The preparation method comprises the following steps: stirring sodium hydroxide, sodium silicate and 1/2 total water in a container for 1-2min to be uniform to obtain an alkaline catalyst mixed solution; putting the fly ash, the naphthalene water reducer, the polyether defoamer and the tartaric acid into a stirrer, stirring for 1-2min to be uniform, firstly adding 1/2 of the total water consumption, stirring for 1-2min, then adding the alkaline catalyst mixed solution while stirring, and finally stirring for 2-3min to be uniform.
Example 2:
the geopolymer composite material is prepared by taking water glass-sodium hydroxide as a catalyst according to the following weight part mixture ratio:
41.4 parts of fly ash, 3 parts of attapulgite, 0.8 part of a naphthalene water reducer, 0.05 part of a polyether defoamer, 0.15 part of tartaric acid, 0.2 part of a fiber dispersant, 5 parts of nano graphite powder, 5 parts of nano zirconia, 0.2 part of ceramic fiber, 0.2 part of calcium sulfate whisker, 10 parts of sodium hydroxide, 20 parts of sodium water glass (the modulus is 1.5, the baume degree is 50%), 14 parts of water, and the water-solid ratio is calculated to be 0.34.
The preparation method comprises the following steps: stirring sodium hydroxide, sodium silicate and 1/2 total water in a container for 1-2min to be uniform to obtain an alkaline catalyst mixed solution; stirring ceramic fibers, calcium sulfate whiskers, a fiber dispersing agent and 1/2 total water in another container for 1-2min until the mixture is uniform to obtain a fiber mixed solution; putting the fly ash, the attapulgite, the naphthalene water reducer, the polyether defoamer, the tartaric acid, the nano graphite powder and the nano zirconia into a stirrer, stirring for 1-2min until the mixture is uniform, adding the fiber mixed solution, stirring for 1-2min, adding the alkaline catalyst mixed solution while stirring, and finally stirring for 2-3min until the mixture is uniform.
Example 3:
the heat-conducting anti-cracking high-ductility polymer composite material comprises the following components in parts by weight:
60 parts of fly ash, 3 parts of attapulgite, 0.8 part of a naphthalene water reducer, 0.05 part of a polyether defoamer, 0.15 part of tartaric acid, 0.2 part of a fiber dispersant, 5 parts of nano graphite powder, 5 parts of nano zirconia, 0.2 part of ceramic fiber, 0.2 part of calcium sulfate whisker, 5 parts of sodium methoxide, 10 parts of sodium ethoxide, 10 parts of calcined hydrotalcite and 0.4 part of water-soluble sodium stearate; the water-solid ratio was 0.34.
The preparation method comprises the following steps: uniformly mixing an aluminum-silicon mineral material, a nano material and an alkaline composite catalyst to obtain a mixture A;
uniformly mixing and dispersing the fiber material and the chemical admixture in water consumption of about 1/2 by adopting a water-solid ratio of 0.34 to obtain a mixture B; then putting the mixture A and the residual water of about 1/2 into a mortar stirrer, stirring for 1-2min to be uniform, adding the mixture B while stirring, and finally stirring for 2-3min to be uniform to obtain a mixture C; and forming, maintaining, condensing and hardening the mixture C to finally obtain the following components: a heat-conducting crack-resistant high-ductility polymer composite material.
Examples 1-3 were molded, cured, set, hardened and tested for fluidity, compressive strength, axial tensile strength, ultimate tensile strain, crack resistance, and thermal conductivity, and the properties of examples 1-3 were compared as follows:
therefore, the heat-conducting anti-cracking high-ductility geopolymer composite material provided by the invention is formed by taking an aluminum-silicon mineral material, a nano material and a fiber material as main raw materials, carrying out geopolymerization reaction under the action of an alkaline composite catalyst and a chemical additive, and carrying out forming, curing, coagulation and hardening, so that the ductility, the toughness and the crack resistance of the geopolymer material are greatly improved.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The heat-conducting anti-cracking high-ductility polymer composite material is characterized by comprising the following components: aluminum-silicon mineral material, nano material and alkaline composite catalyst; the aluminum-silicon-based mineral material comprises fly ash and attapulgite, the nano material comprises nano graphite powder and nano zirconia, the fiber material comprises ceramic fiber and calcium sulfate whisker, the chemical admixture comprises a water reducing agent, a defoaming agent, a retarder and a fiber dispersing agent, and the alkaline composite catalyst comprises sodium methoxide, sodium ethoxide, hydrotalcite and water-soluble sodium stearate.
2. The thermally conductive, crack resistant, high ductility geopolymer composite of claim 1 wherein said fly ash is a class i ash or a class ii ash.
3. The thermally conductive, crack-resistant and highly ductile polymer composite according to claim 1, wherein the attapulgite is a powdered magnesium aluminum silicate clay having a chain layered structure, and the fineness of the clay is 200-300 mesh.
4. The heat-conducting anti-cracking high-ductility polymer composite material as claimed in claim 1, wherein the components are mixed in parts by weight as follows:
5. the method for preparing a thermally conductive crack-resistant high-ductility polymer composite material as claimed in any one of claims 1 to 4, comprising the steps of:
s1) uniformly mixing the aluminum-silicon mineral material, the nano material and the alkaline composite catalyst according to the preset weight part to obtain a mixture A;
s2), adopting a water-solid ratio of 0.28-0.40, uniformly mixing and dispersing the fiber material and the chemical admixture in water of about 1/2 according to a predetermined weight part, and obtaining a mixture B;
s3) putting the mixture A and the residual 1/2 of water into a mortar stirrer, stirring for 1-2min until the mixture is uniform, adding the mixture B while stirring, and finally stirring for 2-3min until the mixture is uniform to obtain a mixture C;
s4), forming, curing, coagulating and hardening the mixture C to finally obtain the heat-conducting anti-cracking high-ductility polymer composite material.
6. The method for preparing the heat-conducting anti-cracking high-ductility geopolymer composite material as claimed in claim 5, wherein the nano graphite powder is regenerated graphite powder, the graphite material of the negative electrode of lithium batteries in mobile phones, computers and electric vehicles is recovered, most heavy metal residues are removed through acid leaching, water washing and heating treatment, the graphite material is crushed by an ultrafine crusher and is sieved by a nanoscale screen, and the particle size index is controlled: d100 is less than 1000nm, D50 is less than 400nm, and the carbon content is more than 98%; the nano zirconia is white solid powder, the zirconia content is more than 98%, and the granularity is 20-80 nm.
7. The method for preparing a heat-conducting, crack-resistant and high-ductility polymer composite material as claimed in claim 5, wherein the ceramic fiber is an aluminum silicate fiber, the monofilament diameter is 3-6 μm, the length is 3-9mm, and the tensile strength is more than 25 GPa; the calcium sulfate whisker is white powdery gypsum fiber, the microstructure is fibrous or whisker-shaped single crystal, the content of calcium sulfate is more than 98 percent, the average length is 50-100 mu m, and the average diameter is 1-4 mu m.
8. The method for preparing the heat-conducting anti-cracking high-ductility polymer composite material as claimed in claim 5, wherein the water reducing agent is a powdery naphthalene water reducing agent or a powdery polycarboxylic acid water reducing agent, and the water reducing rate is more than 15%; the defoaming agent is polyether type or organic silicon type; the retarder is a hydroxycarboxylic acid salt; the fiber dispersing agent is formed by compounding an inorganic dispersing agent and an organic dispersing agent.
9. The method for preparing a heat-conducting anti-cracking high-ductility polymer composite material as claimed in claim 8, wherein the fiber dispersant is compounded by inorganic alkali metal phosphate and organic polyacrylamide.
10. The method for preparing a thermally conductive, crack-resistant and ductile geopolymer composite material according to claim 5, wherein sodium methoxide and sodium ethoxide are white solid powder with a content of more than 98%; the hydrotalcite is powder roasted magnalium hydrotalcite with the specific surface area of 200-300m2(ii)/g; the water-soluble sodium stearate is white powder, and the content of the white powder is more than 98 percent.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115254050A (en) * | 2022-07-04 | 2022-11-01 | 大连科利德光电子材料有限公司 | Method for removing residual monochlorosilane in trisilicon-based nitrogen |
| CN115872673A (en) * | 2022-06-30 | 2023-03-31 | 上海力阳道路加固科技股份有限公司 | Energy-saving geopolymer-based building grouting material and preparation method thereof |
| CN117342833A (en) * | 2023-12-05 | 2024-01-05 | 石家庄铁道大学 | Ultra-high ductility geopolymer recycled concrete and preparation method thereof |
| CN115872673B (en) * | 2022-06-30 | 2024-04-19 | 上海力阳道路加固科技股份有限公司 | Energy-saving geopolymer-based building grouting material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110057832A (en) * | 2009-11-25 | 2011-06-01 | (주)엘지하우시스 | A composition for preparing the hybrid composite board using wood fiber and geopolymer and the hybrid composite board |
| CN108929114A (en) * | 2017-05-23 | 2018-12-04 | 中国石油天然气股份有限公司 | A kind of geopolymer coating and its preparation method and application |
| CN109942235A (en) * | 2019-03-20 | 2019-06-28 | 天津大学 | Room temperature conserves ground polymers concrete of high-strength high anti-carbonation properties and preparation method thereof |
| CN111302708A (en) * | 2020-02-27 | 2020-06-19 | 深圳大学 | Comprehensive utilization technology of large-volume lithium slag waste and implementation method thereof |
| CN111423164A (en) * | 2020-04-01 | 2020-07-17 | 盐城工学院 | Whisker toughening and reinforcing geopolymer and preparation method thereof |
-
2021
- 2021-02-08 CN CN202110173048.2A patent/CN112979223A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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