CN105601154A - Graphene enhancer and preparation method thereof - Google Patents
Graphene enhancer and preparation method thereof Download PDFInfo
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- CN105601154A CN105601154A CN201510999208.3A CN201510999208A CN105601154A CN 105601154 A CN105601154 A CN 105601154A CN 201510999208 A CN201510999208 A CN 201510999208A CN 105601154 A CN105601154 A CN 105601154A
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- graphene
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
The invention relates to a graphene enhancer and a preparation method thereof. The graphene enhancer is prepared from 10-14 percent of a water reducing component, 12-18 percent of a slump retaining component, 3.2-3.6 percent of sodium gluconate, 8-12 percent of graphene oxide, 0.4-0.6 percent of stabilizer and 51-66 percent of deionized water. The preparation method comprises the steps of adding the water reducing component and the slump retaining component into the deionized water, adding the sodium gluconate, adjusting a PH value to 7.0 by using a sodium hydroxide solution, and adding the graphene oxide, thus obtaining the graphene enhancer. By adopting the graphene enhancer and the preparation method, the technical defect that the graphene oxide is used in an existing concrete reinforcing agent, so a concrete base body defect is caused, and strength loss is generated is overcome, and thus the strength, anti-permeability and durability of concrete can be effectively enhanced; besides, the graphene enhancer is efficient and good in long-term storage stability, and the strength of concrete with the same ratio can be increased by 30-46 percent.
Description
Technical field
The present invention relates to cement intensifier, particularly a kind of Graphene reinforcing agent and preparation method thereof.
Background technology
Selecting suitable additive, is one of the approach that improves concrete strength, in cement concrete industry, forThe Developing Circulation Economy that country advocates, the industrial structure policy phase of Accelerating The Construction resource-conserving and environment-friendly societyCoordinate, additive has been widely applied in cement concrete, and on the one hand Save Resource Protect Environment is object, on the other hand forImprove cement matrix chemical composition, improve the pore structure of Behavior of Hardened Cement Paste, regulation and control cement hydration process, makes gel in cement moreAll even densifications, reduce the generation of acicular calcium aluminite, make water mudrock structure finer and close, thereby effectively improve concrete strongDegree, impermeability and durability.
The grain diameter of cement is mostly at 7～200 μ m, but its most hydrated product C-S-H gel is nanometerSize, by admixture nano material in Binder Materials, not only can play the effect of filling pore, the high energy table of nano materialFace can also play nucleation, the surface of nano material can with C-S-H gel-forming bonding, induction entringite in nano materialAnnex growth, finally forms taking nano material as node, the three-dimensional space network structure that C-S-H gel is network, thereby greatlyPhysical and mechanical property and the durability of slurry after ground raising hardening of cement. The people such as ShenghuaLv utilize improved HummersMethod graphite oxide ultrasonic to obtain oxygen content be 29.75% graphene oxide and be compounded in cement-based material testResult shows that the graphene oxide of 0.03% quality volume can significantly improve the resistance to compression of cement mortar, bending resistance and tensile strength, pointYou can well imagine high by 38.9%, 60.7% and 78.6%, thereby graphene oxide can effectively regulate and control hydrolysis product of cement microstructure improveThe intensity of cement-based material and toughness, still, graphene oxide specific area is very large, under alkaline environment, easily flocculate,Can produce flocculation therefore graphene oxide directly mixes in cement, for graphene oxide, the dispersion in cement-based material is not very for thisProfit, can directly affect the enhancing effect that graphene oxide produces, and even can produce cement matrix defect owing to reuniting and cause intensityLoss.
Summary of the invention
The object of this invention is to provide a kind of Graphene reinforcing agent and preparation method thereof, to solve existing concrete reinforcing agentMiddle use graphene oxide causes concrete substrate defect to cause the technological deficiency of loss of strength.
The present invention is achieved in that
A kind of Graphene reinforcing agent, its components based on weight percentage comprises: diminishing component 10～14%, protect the component 12 of collapsing～18%, gluconic acid sodium salt 3.2～3.6%, graphene oxide 8～12%, stabilizing agent 0.4～0.6%, deionized water 51～66%;
Wherein, diminishing component comprises by weight percentage: 30～35% methyl thiazolinyl APEOs, 3～4% acrylic acid, 61～67% deionized water;
Wherein, protecting the component of collapsing comprises by weight percentage: 25～30% allyl polyethenoxy base ethers, 10～15% maleic acidsAcid anhydride, 1%～3% acrylic acid, 5～8% ethylene glycol diacrylates, 44～59% deionized waters;
Wherein, stabilizing agent is polyvinylpyrrolidone.
Graphene reinforcing agent provided by the invention, wherein, the percentage by weight of diminishing component preferably 12%, protect the component of collapsingPercentage by weight preferably 16%, the percentage by weight of gluconic acid sodium salt preferably 3.4%, the percentage by weight of graphene oxide is preferred10%, the percentage by weight of stabilizing agent preferably 0.5%, the percentage by weight of deionized water preferably 58.1%.
Wherein, diminishing component is by weight percentage: methyl thiazolinyl APEO preferably 33%, acrylic acid preferably 3.5%,Deionized water preferably 63.5%, methyl thiazolinyl APEO and acrylic acid are synthetic copolymer.
Wherein, protect and collapse component by weight percentage: allyl polyethenoxy base ether preferably 27%, maleic anhydride is preferred12%, acrylic acid preferably 2%, ethylene glycol diacrylate preferably 6%, deionized water preferably 53%, allyl polyethenoxy base ether, horseCome acid anhydrides, acrylic acid and ethylene glycol diacrylate for synthetic high-molecular copolymer.
The present invention also provides a kind of preparation method who prepares above-mentioned Graphene reinforcing agent, comprises the steps:
Get diminishing component and the guarantor component of collapsing and add in deionized water, stir, then add gluconic acid sodium salt, continue to stir mixedClose, use sodium hydroxide solution to adjust pH value to 7.0, add through the ultrasonic processing of the 20KHz graphene oxide of 2～5 hours, stir mixedClose, finally slowly add stabilizing agent, after stirring and get final product.
Wherein, the preferred ultrasonic processing of graphene oxide 3 hours.
Beneficial effect of the present invention:
1, Graphene reinforcing agent provided by the invention, joins in concrete mix, can realize graphene oxide in cementDispersed, can obviously reduce the hole of Behavior of Hardened Cement Paste inside, improve the pore structure of Behavior of Hardened Cement Paste, make gel in cement more simultaneouslyAdd evenly, can reduce significantly the generation of acicular calcium aluminite, make water mudrock structure finer and close, can make CH crystalline substance in cementBody refinement, thus concrete intensity, impermeability and durability effectively improved.
2, preparation method of the present invention is simple, and the spy that this Graphene synergist has efficiently, extended storage stability is goodPoint, the graphene oxide reinforcing agent that the present invention is prepared, can improve same proportioning concrete strength 30%～46%. .
Detailed description of the invention
Embodiment 1
Graphene reinforcing agent:
By weight percentage: 10% diminishing component, 12% is protected collapse component, 3.2% gluconic acid sodium salt, 8% graphene oxide, 0.4% steadyDetermine agent polyvinylpyrrolidone, 66% deionized water.
Wherein, diminishing component comprises by weight percentage: 30% methyl thiazolinyl APEO, 3% acrylic acid, 67% goIonized water.
Wherein, protecting the component of collapsing comprises by weight percentage: 25% allyl polyethenoxy base ether, 10% maleic anhydride, 1%Acrylic acid, 5% ethylene glycol diacrylate, 59% deionized water.
The preparation method of Graphene reinforcing agent, comprises the steps:
Get above-mentioned diminishing component and the guarantor component of collapsing and add in deionized water, stir, then add gluconic acid sodium salt, continue to stirMix mixing, use sodium hydroxide solution joint to adjust pH value to 7.0, add through the ultrasonic processing of the 20KHz graphene oxide of 2 hours, stirMix mixing, finally slowly add stabilizing agent polyvinylpyrrolidone, after stirring and get final product.
Embodiment 2
Graphene reinforcing agent:
By weight percentage: 14% diminishing component, 18% is protected collapse component, 3.6% gluconic acid sodium salt, 12% graphene oxide, 0.6%Stabilizing agent polyvinylpyrrolidone, 51% deionized water.
Wherein, diminishing component comprises by weight percentage: 35% methyl thiazolinyl APEO, 4% acrylic acid, 61% goIonized water.
Wherein, protecting the component of collapsing comprises by weight percentage: 30% allyl polyethenoxy base ether, 15% maleic anhydride, 3%Acrylic acid, 8% ethylene glycol diacrylate, 44% deionized water.
The preparation method of Graphene reinforcing agent, comprises the steps:
Get diminishing component and the guarantor component of collapsing and add in deionized water, stir, then add gluconic acid sodium salt, continue to stir mixedClose, use sodium hydroxide solution joint to adjust pH value to 7.0, add through the ultrasonic processing of the 20KHz graphene oxide of 5 hours, stir mixedClose, finally slowly add stabilizing agent, after stirring and get final product.
Embodiment 3
Graphene reinforcing agent:
By weight percentage: 12% diminishing component, 16% is protected collapse component, 3.4% gluconic acid sodium salt, 10% graphene oxide, 0.5%Stabilizing agent polyvinylpyrrolidone, 58.1% deionized water.
Wherein, diminishing component comprises by weight percentage: 33% methyl thiazolinyl APEO, 3.5% acrylic acid,63.5% deionized water.
Wherein, protecting the component of collapsing comprises by weight percentage: 27% allyl polyethenoxy base ether, 12% maleic anhydride, 2%Acrylic acid, 6% ethylene glycol diacrylate, 53% deionized water.
The preparation method of Graphene reinforcing agent, comprises the steps:
Get diminishing component and the guarantor component of collapsing and add in deionized water, stir, then add gluconic acid sodium salt, continue to stir mixedClose, use sodium hydroxide solution joint to adjust pH value to 7.0, add through the ultrasonic processing of the 20KHz graphene oxide of 3 hours, stir mixedClose, finally slowly add stabilizing agent, after stirring and get final product.
According to the detection method of GB/T17671-1999, adopt PO42.5 cement, carry out the anti-folding of cement mortarThe compressive strength test of intensity and cement mortar, wherein Graphene reinforcing agent adopts embodiment 3 to prepare gained, Graphene reinforcing agentUse amount according to the percentage calculation of cement weight.
Cement mortar intensity test: cement 450g, normal sand 1350g, water 225g.
The volume of Graphene synergist is that 0.20% of cement weight joins in cement slurry, result of the test as table 1 andShown in table 2.
The rupture strength of table 1 cement mortar
The compression strength of table 2 cement mortar
Reached a conclusion by table 1 and table 2:
1, this Graphene synergist can make bending strength of cement improve significantly, and mid-term, 7d rupture strength increase rate was larger.
Wherein: PO42.5 cement 3d rupture strength be up to state standards 134%～158%, be 106% of benchmark intensity～125%; 72%～85% of the 28d intensity that is up to state standards is 59%～70% of 28d benchmark intensity. 7d rupture strength reaches state103%～125% of the standard 28d of family intensity, is 110%～133% of benchmark intensity, the 28d rupture strength 28d that is up to state standards132%～157% of intensity, is 108%～130% of benchmark intensity, and rupture strength index exceedes 62.5R national standard.
2, cement mortar 7d in mid-term compression strength development is very fast, and later strength is higher, mid-term 7d compression strength increase rateLarger.
Wherein: PO42.5 cement 3d compression strength be up to state standards 134%～169%, be 117% of benchmark intensity～147%; 54%～68% of the 28d intensity that is up to state standards is 49%～62% of 28d benchmark intensity; 7d compression strength reachesTo 102%～129% of national standard 28d compression strength, be 147%～185% of benchmark intensity; 28d compression strength reaches country140%～172% of standard, is 128%～157% of benchmark intensity, and compression strength index reaches 62.5 national standards substantially.
3, cement 7d in mid-term strength development is very fast, and absolute figure is larger, and anti-folding and resistance to compression almost increase with width, and the middle and later periods increasesWidth eases up, and rupture strength amplification is compared with compression strength amplification for slow, and generally, it is higher that the later strength of cement mortar still keepsGrowth rate.
Claims (6)
1. a Graphene reinforcing agent, is characterized in that components based on weight percentage comprises:
Diminishing component 10～14%
Guarantor's component 12～18% of collapsing
Gluconic acid sodium salt 3.2～3.6%
Graphene oxide 8～12%
Stabilizing agent 0.4～0.6%
Deionized water 51～66%
Wherein, described diminishing component comprises by weight percentage: 30～35% methyl thiazolinyl APEOs, 3～4% propyleneAcid, 61～67% deionized waters;
Wherein, the described guarantor component of collapsing comprises by weight percentage: 25～30% allyl polyethenoxy base ethers, 10～15% MalaysiasAcid anhydrides, 1%～3% acrylic acid, 5～8% ethylene glycol diacrylates, 44～59% deionized waters;
Wherein, described stabilizing agent is polyvinylpyrrolidone.
2. Graphene reinforcing agent according to claim 1, is characterized in that: the percentage by weight of described diminishing component is12%, described guarantor collapses that the percentage by weight of component is 16%, the percentage by weight of described gluconic acid sodium salt is 3.4%, described oxidation stoneThe percentage by weight of China ink alkene is 10%, the percentage by weight of described stabilizing agent is 0.5%, the percentage by weight of described deionized water is58.1%。
3. Graphene reinforcing agent according to claim 1, is characterized in that described diminishing component wraps by weight percentageDraw together: 33% methyl thiazolinyl APEO, 3.5% acrylic acid, 63.5% deionized water.
4. Graphene reinforcing agent according to claim 1, is characterized in that the described guarantor component of collapsing wraps by weight percentageDraw together: 27% allyl polyethenoxy base ether, 12% maleic anhydride, 2% acrylic acid, 6% ethylene glycol diacrylate, 53% deionized water.
5. a method of preparing the Graphene reinforcing agent described in any one in claim 1 to 4, is characterized in that comprising as followsStep:
Get diminishing component and the guarantor component of collapsing and add in deionized water, stir, then add gluconic acid sodium salt, continue to stir mixedClose, use sodium hydroxide solution to adjust pH value to 7.0, add through the ultrasonic processing of the 20KHz graphene oxide of 2～5 hours, stir mixedClose, finally slowly add stabilizing agent, after stirring and get final product.
6. preparation method according to claim 5, is characterized in that: the ultrasonic processing of described graphene oxide 3 hours.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673574A (en) * | 2016-12-05 | 2017-05-17 | 同济大学 | Non-calcined desulfurized gypsum hydraulic composite gel system |
| CN107337363A (en) * | 2016-12-30 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of cement concrete durability strengthens additive |
| CN110256109A (en) * | 2019-06-18 | 2019-09-20 | 宁波墨西科技有限公司 | A kind of graphene antistatic lithium based concrete sealing solidifying agent and preparation method thereof |
| CN114436560A (en) * | 2022-02-22 | 2022-05-06 | 蒋少华 | Concrete synergist and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417643A (en) * | 2011-10-17 | 2012-04-18 | 佛山市日丰企业有限公司 | Grapheme-containing reinforced wear-resistant material composition, reinforced wear-resistant material and preparation method thereof |
| CN103738944A (en) * | 2013-11-14 | 2014-04-23 | 盐城增材科技有限公司 | Method for preparing three-dimensional graphene through doping of nanoparticles |
| CN104058676A (en) * | 2014-07-15 | 2014-09-24 | 宏峰集团(福建)有限公司 | High-toughness concrete and preparation method thereof |
| CN104843688A (en) * | 2015-04-20 | 2015-08-19 | 德阳烯碳科技有限公司 | Graphene preparation method |
-
2015
- 2015-12-28 CN CN201510999208.3A patent/CN105601154B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417643A (en) * | 2011-10-17 | 2012-04-18 | 佛山市日丰企业有限公司 | Grapheme-containing reinforced wear-resistant material composition, reinforced wear-resistant material and preparation method thereof |
| CN103738944A (en) * | 2013-11-14 | 2014-04-23 | 盐城增材科技有限公司 | Method for preparing three-dimensional graphene through doping of nanoparticles |
| CN104058676A (en) * | 2014-07-15 | 2014-09-24 | 宏峰集团(福建)有限公司 | High-toughness concrete and preparation method thereof |
| CN104843688A (en) * | 2015-04-20 | 2015-08-19 | 德阳烯碳科技有限公司 | Graphene preparation method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673574A (en) * | 2016-12-05 | 2017-05-17 | 同济大学 | Non-calcined desulfurized gypsum hydraulic composite gel system |
| CN107337363A (en) * | 2016-12-30 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of cement concrete durability strengthens additive |
| CN107337363B (en) * | 2016-12-30 | 2019-12-27 | 江苏苏博特新材料股份有限公司 | Cement concrete durability enhancing additive |
| CN110256109A (en) * | 2019-06-18 | 2019-09-20 | 宁波墨西科技有限公司 | A kind of graphene antistatic lithium based concrete sealing solidifying agent and preparation method thereof |
| CN114436560A (en) * | 2022-02-22 | 2022-05-06 | 蒋少华 | Concrete synergist and preparation method thereof |
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