CN105016645A - Concrete mud resisting agent based on counter-insert layer design and preparing method thereof - Google Patents
Concrete mud resisting agent based on counter-insert layer design and preparing method thereof Download PDFInfo
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- 239000004567 concrete Substances 0.000 title claims abstract description 49
- 238000013461 design Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title description 2
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 68
- 239000000178 monomer Substances 0.000 claims abstract description 20
- 150000003384 small molecules Chemical class 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000012986 chain transfer agent Substances 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 4
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 4
- -1 hydroxyethyl ester Chemical class 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 claims abstract description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 18
- 125000002091 cationic group Chemical group 0.000 claims description 9
- 239000012456 homogeneous solution Substances 0.000 claims description 9
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 9
- 230000002829 reductive effect Effects 0.000 claims description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 9
- 229920002554 vinyl polymer Polymers 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 229960002887 deanol Drugs 0.000 claims description 6
- 239000012972 dimethylethanolamine Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- FDRCDNZGSXJAFP-UHFFFAOYSA-M sodium chloroacetate Chemical compound [Na+].[O-]C(=O)CCl FDRCDNZGSXJAFP-UHFFFAOYSA-M 0.000 claims description 6
- VLCAYQIMSMPEBW-UHFFFAOYSA-N methyl 3-hydroxy-2-methylidenebutanoate Chemical compound COC(=O)C(=C)C(C)O VLCAYQIMSMPEBW-UHFFFAOYSA-N 0.000 claims description 5
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 4
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 claims description 3
- 239000004160 Ammonium persulphate Substances 0.000 claims description 3
- JPAOMENBKRZQDR-UHFFFAOYSA-N CC=CC.[Na] Chemical compound CC=CC.[Na] JPAOMENBKRZQDR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 3
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 3
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 claims description 3
- 239000012065 filter cake Substances 0.000 claims description 3
- 238000000967 suction filtration Methods 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical group OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 3
- 239000004159 Potassium persulphate Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000019394 potassium persulphate Nutrition 0.000 claims description 2
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract description 13
- 229920005646 polycarboxylate Polymers 0.000 abstract description 12
- 239000004927 clay Substances 0.000 abstract description 7
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052901 montmorillonite Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 125000000524 functional group Chemical group 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 230000002687 intercalation Effects 0.000 abstract 2
- 238000009830 intercalation Methods 0.000 abstract 2
- PBCKVROHSSNSDY-UHFFFAOYSA-N 2-methylprop-2-enoic acid;sodium Chemical compound [Na].CC(=C)C(O)=O PBCKVROHSSNSDY-UHFFFAOYSA-N 0.000 abstract 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 13
- 239000004568 cement Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 0 CC[C@@](C)*C(C)C(*(C)(C(C)(C)C)C(C1[C@@](C)C1)=N)C([U]*)=* Chemical compound CC[C@@](C)*C(C)C(*(C)(C(C)(C)C)C(C1[C@@](C)C1)=N)C([U]*)=* 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229910000269 smectite group Inorganic materials 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明涉及到一种基于反插层设计的混凝土抗泥剂及制备方法，包括有以下步骤：将所述的小分子单体、2-丁烯酸、甲基丙烯磺酸钠、甲基丙烯酸羟乙酯搅拌溶解，保持70～75℃温度，得到均匀溶液，再加入氧化剂，搅拌得到均匀溶液；一次性加入还原剂及链转移剂混合物，并继续搅拌2～4h，调节pH至8～9，加入适当去离子水，得到基于反插层设计的混凝土抗泥剂。本发明的效果在于：本发明制备的混凝土抗泥剂带有正电荷官能团单体，对于蒙脱石类粘土具有很好的被优先吸附能力，能很好阻止聚羧酸减水剂吸附于蒙脱石层间；混凝土抗泥剂适应性强；提高混凝土初始坍落度，具有较好的和易性。The present invention relates to a kind of anti-clay agent for concrete based on reverse intercalation design and its preparation method, comprising the following steps: mixing the small molecule monomer, 2-butenoic acid, sodium methacrylic acid, methacrylic acid Stir and dissolve the hydroxyethyl ester, keep the temperature at 70-75°C to obtain a uniform solution, then add an oxidant, and stir to obtain a uniform solution; add the reducing agent and chain transfer agent mixture at one time, and continue stirring for 2-4 hours to adjust the pH to 8-9 , adding appropriate deionized water to obtain a concrete anti-mud agent based on reverse intercalation design. The effect of the present invention is that the concrete anti-mud agent prepared by the present invention has positively charged functional group monomers, has a good ability to be preferentially adsorbed to montmorillonite clay, and can well prevent polycarboxylate water reducers from being adsorbed on montmorillonite clays. Remove stone between layers; Concrete anti-mud agent has strong adaptability; Improve the initial slump of concrete and have good workability.
Description
Technical field
The invention belongs to additive for building material field, be specifically related to a kind of agent on crack resistance of concrete mud agent based on the design of anti-plug layer and preparation method.
Background technology
In recent years, along with the development of Chinese society economy, the demand of build concrete is increasing, and sandstone consumption sharply increases, and the sand and stone resources of high-quality is exhausted.The most silt content of sandstone of current use is higher, and grating is unreasonable.Mud in sandstone is a kind of clay mineral, main component is montmorillonite, it is layer silicate mineral, the sandstone that silt content is higher can have significant impact on the concrete performance mixing polycarboxylate water-reducer, particularly when sandstone silt content is more than 5%, can make that workability of concrete is bad or slump-loss is excessive, workability is bad.
Montmorillonite due to interlamellar spacing size scalability change greatly, extremely strong to the adsorptive power of water and polycarboxylate water-reducer, therefore when containing mud in sandstone, polycarboxylate water-reducer and water can be preferentially adsorbed on the interlayer of montmorillonite, cause being adsorbed on polycarboxylate water-reducer, the water yield in the polycarboxylate water-reducer of cement particle surface and liquid phase greatly to reduce, this makes the dispersiveness of cement granules greatly reduce, and the concrete slump is sharply lost.The way of current this problem of solution strengthens polycarboxylate water-reducer consumption to contain mud to the impact of polycarboxylate water-reducer to reduce sandstone, does like this and both polycarboxylate water-reducer consumption can not made to float comparatively greatly for essential problem, and can strengthen construction cost.Therefore study a kind of can preferentially by adsorption by clay and the agent on crack resistance of concrete mud agent being packed into the adsorption space between clay seam is that tool has very great significance based on anti-plug layer, it polycarboxylate water-reducer in prevention system further and free water can enter clay layer inside, effectively can lower concrete slump loss.
Summary of the invention
Technical problem to be solved by this invention proposes a kind of agent on crack resistance of concrete mud agent based on the design of anti-plug layer and preparation method, it can be preferentially adsorbed between clay seam effectively, stop polycarboxylate water-reducer and water to be adsorbed between clay seam, greatly improve concrete mobility and reduce slump-loss.
The problem that the present invention is the above-mentioned proposition of solution by the following technical solutions: based on anti-plug layer design the agent of agent on crack resistance of concrete mud, its general structure is:
Wherein, a=20 ~ 30, b=5 ~ 10, c=10 ~ 15, d=10 ~ 20, its molecular weight is 8000 ~ 13500.
The preparation method of the described agent on crack resistance of concrete mud agent based on the design of anti-plug layer, includes following steps:
A) starting material are chosen: by the chain-transfer agent of 40 ~ 60wt% small molecule monomer, 20 ~ 35wt%2-butenoic acid, 10 ~ 25% methylpropene sodium sulfonates, 8 ~ 24wt% hydroxyethyl methylacrylate, the oxygenant of 0.5 ~ 1.5wt%, the reductive agent of 1.0 ~ 1.5wt% and 0.5 ~ 1.0wt%, each component total amount is 100% above, chooses starting material;
B) by described small molecule monomer, 2-butylene acid, methylpropene sodium sulfonate, hydroxyethyl methylacrylate stirring and dissolving, keep 70 ~ 75 DEG C of temperature, obtain homogeneous solution, then add oxygenant, stir and obtain homogeneous solution;
C) by poly-for step 2) in institute obtain in homogeneous solution, disposable reductive agent and the chain-transfer agent mixture of adding, and continue stirring 2 ~ 4h, regulates pH to 8 ~ 9, adds suitable deionized water, obtain the agent on crack resistance of concrete mud agent based on the design of anti-plug layer.
By such scheme, described small molecule monomer is the vinyl-based small molecule monomer with cationic charge, and its molecular structure is as follows:
By such scheme, the preparation method of the described vinyl-based small molecule monomer with cationic charge is as follows:
A) maleic anhydride and acetone catalyzer are uniformly mixed in encloses container, are warming up to 5 ~ 7 DEG C, and are incubated 0.5h;
B) keep temperature-resistant, evenly add dimethylethanolamine at 10min, and be incubated 8h;
C) after completion of the reaction by solution for vacuum suction filtration, clean filter cake with acetone, vacuum-drying obtains pressed powder;
D) above-mentioned pressed powder is dissolved in distilled water, regulates pH to 8 ~ 9, add sodium chloroacetate, regulate temperature to 30 ~ 35 DEG C, and be incubated 9h, obtain the vinyl-based small molecule monomer with cationic charge;
Wherein, step a), b), d) in used maleic anhydride: dimethylethanolamine: the mass ratio of sodium chloroacetate is 1:1:1, the consumption of acetone is 4 ~ 5 times of maleic anhydride quality.
By such scheme, described oxygenant is ammonium persulphate, any one or two kinds in hydrogen peroxide, Potassium Persulphate mix, and its mol ratio is 1:1.
By such scheme, described reductive agent is the Sulfothiorine of equimolar ratio, any two or three in S-WAT, L-AA mixes.
By such scheme, described chain-transfer agent is mercaptoethanol, one or both in thiohydracrylic acid mix, and during two kinds of mixing, mol ratio is 2:1.
Reaction equation involved in the present invention:
A) with the vinyl-based small molecule monomer building-up reactions equation of cationic charge:
B) agent on crack resistance of concrete mud agent building-up reactions equation:
Effect of the present invention is:
1. the agent on crack resistance of concrete mud agent prepared of the present invention is with positive functional groups's monomer, has and is well preferentially adsorbed ability, polycarboxylate water-reducer can be stoped very well to be adsorbed between montmorillonite layer for smectite-group clay;
2. the agent on crack resistance of concrete mud agent strong adaptability prepared of the present invention, has good adaptability for the larger concrete of sandstone silt content scope fluctuation;
3. the agent on crack resistance of concrete mud agent prepared of the present invention is compared with the anti-mud agent of commercially available general concrete, and raising concrete initial slump that can be larger, has good workability.
Embodiment
For illustrating further content of the present invention, exemplifying following examples especially and the present invention is described in further detail.Embodiment provides by way of illustration, but is never only confined to content of the present invention.Protection scope of the present invention is as the criterion with claim specification sheets.
Based on an agent on crack resistance of concrete mud agent for anti-plug layer design, it is characterized in that, its molecular weight is 8000 ~ 13500, and its general structure is:
Wherein, a=20 ~ 30, b=5 ~ 10, c=10 ~ 15, d=10 ~ 20.
Embodiment proportioning is as shown in table 1, and specific implementation process is as follows:
1) by small molecule monomer, 2-butylene acid, methylpropene sodium sulfonate, hydroxyethyl methylacrylate stirring and dissolving, keep 70 ~ 75 DEG C of temperature, obtain homogeneous solution, then add oxygenant, stir and obtain homogeneous solution;
2) by poly-for step 1) in institute obtain in homogeneous solution, disposable reductive agent and the chain-transfer agent mixture of adding, and continue stirring 2 ~ 4h, regulates pH to 8 ~ 9, adds suitable deionized water, obtain a kind of agent on crack resistance of concrete mud agent based on the design of anti-plug layer.
Wherein, small molecule monomer is the vinyl-based small molecule monomer with cationic charge, and its molecular structure is as follows:
Its preparation method is as follows:
A) maleic anhydride and acetone catalyzer are uniformly mixed in encloses container, are warming up to 5 ~ 7 DEG C, and are incubated 0.5h;
B) keep temperature-resistant, evenly add dimethylethanolamine at 10min, and be incubated 8h;
C) after completion of the reaction by solution for vacuum suction filtration, clean filter cake with acetone, vacuum-drying obtains pressed powder in one day;
D) above-mentioned pressed powder is dissolved in distilled water, regulates pH to 8 ~ 9, add sodium chloroacetate, regulate temperature to 30 ~ 35 DEG C, and be incubated 9h, obtain the vinyl-based small molecule monomer with cationic charge;
Wherein, maleic anhydride used in step a, b, d: dimethylethanolamine: the mass ratio of sodium chloroacetate is 1:1:1, the consumption of acetone is 4 ~ 5 times of maleic anhydride quality.
The agent on crack resistance of concrete mud agent material proportioning that one kind, table 1 designs based on anti-plug layer
Wherein oxygenant is ammonium persulphate, two kinds, hydrogen peroxide mixes, and mol ratio is 1:1;
A1-A4 reductive agent is S-WAT, S-WAT two kinds mixes, and mol ratio is 1:1;
A5-A8 reductive agent is S-WAT, sodium bisulfite, L-AA three kinds mix, and mol ratio is 1:1:1;
Chain-transfer agent is the mixture of mercaptoethanol, thiohydracrylic acid, and mol ratio is 2:1.
To the evaluation of the product of above 8 embodiments
Concrete slump and divergence test are carried out according to GB/T 50080-2002 " Standard for test methods of properties of ordinary concrete mixture standard (attached provision explanation) " regulation, and concrete mix is as shown in table 2, and the effect of anti-mud agent is as shown in table 3.
Table 2 concrete mix
Note: in experiment, cement used is the new P.O 42.5 of China, and sandstone silt content is 9%.
Table 3 agent on crack resistance of concrete mud agent effect
Note: A01 anti-mud agent used is commercially available general anti-mud agent.
As can be seen from above analysis, when not adding anti-mud agent, concrete slump only has about 120mm, and workability is poor; When adding the anti-mud agent of commercially available general concrete, concrete initial slump improves, and does not add compared with anti-mud agent, and increase rate is little; For the agent on crack resistance of concrete mud agent adding A1 ~ A8 embodiment, concrete initial slump, substantially all at more than 205mm, has good workability, and therefore this technological invention product can be widely used in the high concrete of gravel content, improve concrete slump, improve workability.
Claims (7)
1., based on the agent on crack resistance of concrete mud agent of anti-plug layer design, its general structure is:
Wherein, a=20 ~ 30, b=5 ~ 10, c=10 ~ 15, d=10 ~ 20, its molecular weight is 8000 ~ 13500.
2. the preparation method of the agent on crack resistance of concrete mud agent based on the design of anti-plug layer according to claim 1, includes following steps:
A) starting material are chosen: by the chain-transfer agent of 40 ~ 60wt% small molecule monomer, 20 ~ 35wt%2-butenoic acid, 10 ~ 25% methylpropene sodium sulfonates, 8 ~ 24wt% hydroxyethyl methylacrylate, the oxygenant of 0.5 ~ 1.5wt%, the reductive agent of 1.0 ~ 1.5wt% and 0.5 ~ 1.0wt%, each component total amount is 100% above, chooses starting material;
B) by described small molecule monomer, 2-butylene acid, methylpropene sodium sulfonate, hydroxyethyl methylacrylate stirring and dissolving, keep 70 ~ 75 DEG C of temperature, obtain homogeneous solution, then add oxygenant, stir and obtain homogeneous solution;
C) by poly-for step 2) in institute obtain in homogeneous solution, disposable reductive agent and the chain-transfer agent mixture of adding, and continue stirring 2 ~ 4h, regulates pH to 8 ~ 9, adds suitable deionized water, obtain the agent on crack resistance of concrete mud agent based on the design of anti-plug layer.
3. the preparation method of the agent on crack resistance of concrete mud agent based on the design of anti-plug layer according to claim 2, is characterized in that: described small molecule monomer is the vinyl-based small molecule monomer with cationic charge, and its molecular structure is as follows:
4. the preparation method of the agent on crack resistance of concrete mud agent based on the design of anti-plug layer according to claim 3, is characterized in that: the preparation method of the described vinyl-based small molecule monomer with cationic charge is as follows:
A) maleic anhydride and acetone catalyzer are uniformly mixed in encloses container, are warming up to 5 ~ 7 DEG C, and are incubated 0.5h;
B) keep temperature-resistant, evenly add dimethylethanolamine at 10min, and be incubated 8h;
C) after completion of the reaction by solution for vacuum suction filtration, clean filter cake with acetone, vacuum-drying obtains pressed powder;
D) above-mentioned pressed powder is dissolved in distilled water, regulates pH to 8 ~ 9, add sodium chloroacetate, regulate temperature to 30 ~ 35 DEG C, and be incubated 9h, obtain the vinyl-based small molecule monomer with cationic charge;
Wherein, step a), b), d) in used maleic anhydride: dimethylethanolamine: the mass ratio of sodium chloroacetate is 1:1:1, the consumption of acetone is 4 ~ 5 times of maleic anhydride quality.
5. the preparation method of agent on crack resistance of concrete mud agent based on the design of anti-plug layer according to claim 2, is characterized in that: described oxygenant is ammonium persulphate, any one or two kinds in hydrogen peroxide, Potassium Persulphate mix, and its mol ratio is 1:1.
6. the preparation method of agent on crack resistance of concrete mud agent based on the design of anti-plug layer according to claim 2, is characterized in that: described reductive agent is the Sulfothiorine of equimolar ratio, any two or three in S-WAT, L-AA mixes.
7. the preparation method of agent on crack resistance of concrete mud agent based on the design of anti-plug layer according to claim 2, is characterized in that: described chain-transfer agent is mercaptoethanol, one or both in thiohydracrylic acid mix, and during two kinds of mixing, mol ratio is 2:1.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519121A (en) * | 2016-11-21 | 2017-03-22 | 山东交通学院 | Enhanced anti-mud agent and preparing method thereof |
| CN111302721A (en) * | 2020-03-27 | 2020-06-19 | 浙江广天构件股份有限公司 | Preparation method of concrete slurry and pattern concrete prefabricated part |
| CN116553857A (en) * | 2023-05-15 | 2023-08-08 | 山东恒丰天利新材料科技有限公司 | Small molecule anti-mud agent |
-
2015
- 2015-08-07 CN CN201510484284.0A patent/CN105016645A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 巨浩波: ""砂石含泥量对聚羧酸系减水剂性能的影响及抗泥剂的合成研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519121A (en) * | 2016-11-21 | 2017-03-22 | 山东交通学院 | Enhanced anti-mud agent and preparing method thereof |
| CN111302721A (en) * | 2020-03-27 | 2020-06-19 | 浙江广天构件股份有限公司 | Preparation method of concrete slurry and pattern concrete prefabricated part |
| CN111302721B (en) * | 2020-03-27 | 2022-04-08 | 浙江广天构件股份有限公司 | Preparation method of concrete slurry and pattern concrete prefabricated part |
| CN116553857A (en) * | 2023-05-15 | 2023-08-08 | 山东恒丰天利新材料科技有限公司 | Small molecule anti-mud agent |
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Application publication date: 20151104 |