CN105503012A - Composition used for producing slow release anti-mud polycarboxylate-type water reducing agent - Google Patents
Composition used for producing slow release anti-mud polycarboxylate-type water reducing agent Download PDFInfo
- Publication number
- CN105503012A CN105503012A CN201510947148.0A CN201510947148A CN105503012A CN 105503012 A CN105503012 A CN 105503012A CN 201510947148 A CN201510947148 A CN 201510947148A CN 105503012 A CN105503012 A CN 105503012A
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- China
- Prior art keywords
- linking agent
- composition
- unsaturated
- water reducer
- water reducing
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Classifications
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2688—Copolymers containing at least three different monomers
- C04B24/2694—Copolymers containing at least three different monomers containing polyether side chains
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Abstract
The invention discloses a composition used for producing a slow release anti-mud polycarboxylate-type water reducing agent. The composition is composed of unsaturated ester, a cross-linking agent and a cationic unsaturated monomer. The cross-linking agent contains double unsaturated bonds. The average molecular weight of the cross-linking agent is 400-600 Dalton. The weight ratio of the unsaturated ester to the cross-linking agent to the cationic unsaturated monomer is 35-50:3-7:5-15. The cross-linking agent, with the molecular weight in a specific molecular weight range, containing the double unsaturated bonds is adopted to be matched with the unsaturated ester and the cationic unsaturated monomer, so that the produced water reducing agent achieves net working, the water reducing agent is low in admixture amount, high in water reducing agent, excellent in slump retention ability and insensitive to gravel containing mud.
Description
Technical field:
The invention belongs to concrete admixture field, especially water reducer field, particularly a kind of composition for the production of the anti-mud poly carboxylic acid series water reducer of slowly-releasing.
Background technology
CN104479084A proposes the preparation method of the anti-mud agent of a kind of polycarboxylate, by the Soxylat A 25-7 of unsaturated double-bond, unsaturated ester class, the synthesis such as unsaturated carboxylic acid and initiator high temperature, there is no special Kang Ni functional group, product is more difficult plays anti-mud effect, and will use with other compounding polycarboxylic acids.
CN103253886A proposes a kind of Polycarboxylate superplasticizer synergist, includes low carbon number (C3-C6) the fatty alcohol polyethenoxy ether class monomer with terminal double link and has the quaternaries cation monomer b of terminal double link and have low carbon number (C3-C10) fatty acid ester of terminal double link.Although this synergistic agent proposes the composition concept of unsaturated ester and positively charged ion unsaturated monomer, it does not solve slow-releasing well, and slow release effect is difficult to meet the need of market.
The present invention proposes a kind of composition for the production of the anti-mud poly carboxylic acid series water reducer of slowly-releasing, the water reducer using said composition to produce, the flowability problem of earth and the slump of long period and divergence hold facility problem can be solved.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of composition for the production of the anti-mud poly carboxylic acid series water reducer of slowly-releasing, said composition is made up of unsaturated ester, linking agent and positively charged ion unsaturated monomer, wherein linking agent is the linking agent with two unsaturated link(age), and the molecular-weight average of linking agent is 400-600 dalton, wherein the weight ratio of unsaturated ester, linking agent and positively charged ion unsaturated monomer is 35 ~ 50:3 ~ 7:5 ~ 15.
Preferably, in above-mentioned composition, unsaturated ester is one or more mixtures of Hydroxyethyl acrylate, Propylene glycol monoacrylate, hydroxyethyl methylacrylate, Rocryl 410.
Preferably, in above-mentioned composition, linking agent is the one of polyoxyethylene glycol maleic acid diester, polyethyleneglycol diacrylate, polyethylene glycol dimethacrylate.
Preferably, above-mentioned composition cationic unsaturated monomer is one or more mixtures in dimethyl diallyl ammonium chloride or allyl group trimethyl ammonium chloride.
Present invention also offers the preparation method of above-mentioned composition, it is characterized in that taking described raw material according to weight ratio, carry out stirring 10-20 minute at normal temperatures.
Present invention also offers the purposes of above-mentioned composition, it is characterized in that for the production of extending pulp flowage, improve the water reducer of the cement slump and ultimate compression strength.
In such use, produce in the process of water reducer at application above-mentioned composition, other the material composition added is needed to be conventional one-tenth component selections, the composition that such as unsaturated carboxylic acid, polyether macromonomer, chain-transfer agent, reductive agent, oxygenant etc. all can adopt this area conventional, it can't affect the performance of the water reducer that above-mentioned composition is produced.
The present invention, compared with other techniques, has significant beneficial effect:
Composition of the present invention adopts the unsaturated ester of specified proportion, linking agent and positively charged ion unsaturated monomer, and adopt molecular weight to be the daltonian linking agent of 400-600, ensure that the water reducer using said composition to produce has good fluidity, the slump and the divergence hold facility of long period are strong.
Embodiment
Composition prepares embodiment
Take each raw material according to the proportioning of such as following table 1, stir at normal temperatures, stir and obtain each composition in 15 minutes.In table 1 raw materials used all can market buy.
Water reducer composition prepared by table 1
Embodiment prepared by water reducer
According to the raw material be described in table 2 below and raw material weight, prepare water reducer by the following method.
Step 1: reductive agent and water mixing are fully stirred, obtained solution A;
Step 2: the composition in unsaturated carboxylic acid, chain-transfer agent, composition embodiment, water are fully stirred obtained solution B;
Step 3: add polyether macromonomer and water in the reactor with temperature detector and electric mixer, be stirred to whole dissolving, add oxygenant, stir, obtained solution C;
Step 4: drip solution A and solution B in solution C, solution A is 1.5 hours at time for adding, and solution B time for adding is 1 hour, after solution A and solution B all dropwise, is incubated 1 hour, and reconciling pH value of solution with alkali lye is between 6-7, obtains water reducer.
Raw material in table 2 and table 3 adopts the composition in composition embodiment except composition, and all the other raw materials are market and buy and obtain.
By preparing 7 kinds of water reducers with kind of the composition of 7 in table 1, be respectively water reducer 1-7.
The raw materials of the water reducer 1-3 of table 2 composition 1 and use scale
The raw materials of table 3 water reducer 4-7 and use scale
Effect embodiment
Paste flowing degree is tested:
Cement paste test is carried out according to GB/T8077-2012 " Methods for testing uniformity of concrete admixture ".The earth adopting China Resources PII42.5 cement and sodium bentonite to simulate in sandstone is tested; Cement consumption is 300g, and water consumption is 70g.
By mixing the flowing degree of net paste of cement of the water reducer 1-7 in the sodium bentonite of different amount and above-mentioned water reducer embodiment outward, testing data is in table 4:
Table 4 cement paste correlation data
As can be seen from Table 4, utilize the cement prepared by water reducer 1-7 prepared by composition 1-7, it is initial, 90min paste flowing degree aspect, composition 1-4 prepares cement Example 1-1 to 1-4 prepared by water reducer 1-4 and water reducer, embodiment 2-1 to 2-4, embodiment 3-1 to 3-4, water reducer 5-7 prepared by composition 5-7 and cement Example 1-5 to 1-7 is better than in paste flowing degree, embodiment 2-5 to 2-7, embodiment 3-5 to 3-7, especially composition 4 is distinguished with the paste flowing degree of composition 5-7, the difference of composition is unsaturated ester, the ratio difference of linking agent and positively charged ion unsaturated monomer, be exactly the difference of cross-linker molecules amount in addition, this for composition to prepare the performance in water reducer and cement very crucial, the present invention passes through unsaturated ester, the ratio setting of linking agent and positively charged ion unsaturated monomer and cross-linker molecules amount select to achieve the effect that the water reducer of preparation and cement thereof have excellence.
Concrete slump is tested:
This experiment cement is China Resources PII42.5R; Breeze is Shoudu Iron and Steel Co S95 level breeze; Flyash is Nanning secondary ash; Sand is river sand, and silt content is 2.5%, the medium sand of fineness modulus 2.6; Stone, the stone of particle diameter 5 ~ 25.Proportioning is cement: breeze: flyash: sand: stone: water=170:90:80:810:1070:150.Proportionally add water reducer, churning time is 180 seconds, vibrating time 15 seconds.
Table 5 concrete performance experimental result
As can be seen from Table 5, composition 1-4 prepares concrete prepared by water reducer and water reducer, in the slump, divergence, ultimate compression strength aspect is better than composition 5-7, especially the slump of composition 4 and composition 5-7, ultimate compression strength is distinguished, unsaturated ester is from the difference of composition, the ratio difference of linking agent and positively charged ion unsaturated monomer, be exactly the difference of cross-linker molecules amount in addition, this is preparing water reducer for composition, cement, the performance of concrete aspect is very crucial, as can be seen from Table 5, composition of the present invention is preparing water reducer, cement, concrete water-reducing effect is good, concrete strength is higher, excellent combination property, achieve the high diminishing of water reducer, high-thin arch dam, the functions such as anti-mud is effective.
Claims (6)
1. the composition for the production of the anti-mud poly carboxylic acid series water reducer of slowly-releasing, said composition is made up of unsaturated ester, linking agent and positively charged ion unsaturated monomer, wherein linking agent is the linking agent with two unsaturated link(age), and the molecular-weight average of linking agent is 400-600 dalton, wherein the weight ratio of unsaturated ester, linking agent and positively charged ion unsaturated monomer is 35 ~ 50:3 ~ 7:5 ~ 15.
2. composition according to claim 1, wherein unsaturated ester is one or more mixtures of Hydroxyethyl acrylate, Propylene glycol monoacrylate, hydroxyethyl methylacrylate, Rocryl 410.
3. the composition according to any one of claim 1-2, wherein linking agent is the one of polyoxyethylene glycol maleic acid diester, polyethyleneglycol diacrylate, polyethylene glycol dimethacrylate.
4. the composition according to any one of claim 1-3, its cationic unsaturated monomer is one or more mixtures in dimethyl diallyl ammonium chloride or allyl group trimethyl ammonium chloride.
5. the preparation method of composition described in any one of claim 1-4, is characterized in that carrying out stirring at normal temperature according to weight ratio.
6. the purposes of composition described in any one of claim 1-4, is characterized in that for the production of improving water-reducing rate, anti-mud, protect and collapse and the poly carboxylic acid series water reducer of enhancing aspect performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947148.0A CN105503012B (en) | 2015-12-16 | 2015-12-16 | It is a kind of to be used to produce the composition for being sustained anti-mud poly carboxylic acid series water reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947148.0A CN105503012B (en) | 2015-12-16 | 2015-12-16 | It is a kind of to be used to produce the composition for being sustained anti-mud poly carboxylic acid series water reducer |
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| CN105503012A true CN105503012A (en) | 2016-04-20 |
| CN105503012B CN105503012B (en) | 2017-12-05 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906247A (en) * | 2016-05-02 | 2016-08-31 | 唐岁寒 | Constructional baking-free brick |
| CN105924044A (en) * | 2016-04-30 | 2016-09-07 | 李程 | Building material mortar |
| CN105924043A (en) * | 2016-04-29 | 2016-09-07 | 尹超 | Hydraulic cementing material |
| CN105924045A (en) * | 2016-05-02 | 2016-09-07 | 李逸博 | Preparation method for building pouring material |
| CN105948604A (en) * | 2016-04-28 | 2016-09-21 | 吴成继 | Method for preparing ground plaster |
| CN105948562A (en) * | 2016-04-30 | 2016-09-21 | 李程 | Additive material for manufacturing cement-base plate |
| CN108239237A (en) * | 2016-12-23 | 2018-07-03 | 上海东大化学有限公司 | Poly carboxylic acid series water reducer and preparation method thereof and application method |
| CN109232830A (en) * | 2018-09-18 | 2019-01-18 | 科之杰新材料集团有限公司 | A kind of preparation method of concrete slump retaining type reinforcing agent |
| CN109879623A (en) * | 2019-03-26 | 2019-06-14 | 江苏百瑞吉新材料有限公司 | It is a kind of to protect the anti-chamotte mould polycarboxylic acids and preparation method thereof that collapses |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69620832T2 (en) * | 1995-07-13 | 2002-11-07 | Mbt Holding Ag Zuerich | Cement dispersant, process for its preparation and cement composition containing this dispersant |
| CN1600736A (en) * | 2003-09-22 | 2005-03-30 | 北京绿色前缘技术创新中心有限公司 | Water reducing agent for highly active concrete in copolymerization carboxylic acids |
| CN102643042A (en) * | 2012-04-20 | 2012-08-22 | 株洲加美乐素建材有限公司 | Cross-linked polycarboxylic acid water reducing agent and preparation method thereof |
| CN103253886A (en) * | 2013-04-12 | 2013-08-21 | 奥克化学扬州有限公司 | Polycarboxylate superplasticizer synergist and preparation method thereof |
| CN104479084A (en) * | 2014-12-05 | 2015-04-01 | 山西科腾环保科技有限公司 | Polycarboxylate based anti-mud agent and preparation method thereof |
-
2015
- 2015-12-16 CN CN201510947148.0A patent/CN105503012B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69620832T2 (en) * | 1995-07-13 | 2002-11-07 | Mbt Holding Ag Zuerich | Cement dispersant, process for its preparation and cement composition containing this dispersant |
| CN1600736A (en) * | 2003-09-22 | 2005-03-30 | 北京绿色前缘技术创新中心有限公司 | Water reducing agent for highly active concrete in copolymerization carboxylic acids |
| CN102643042A (en) * | 2012-04-20 | 2012-08-22 | 株洲加美乐素建材有限公司 | Cross-linked polycarboxylic acid water reducing agent and preparation method thereof |
| CN103253886A (en) * | 2013-04-12 | 2013-08-21 | 奥克化学扬州有限公司 | Polycarboxylate superplasticizer synergist and preparation method thereof |
| CN104479084A (en) * | 2014-12-05 | 2015-04-01 | 山西科腾环保科技有限公司 | Polycarboxylate based anti-mud agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘海露等: "聚羧酸减水剂的合成及性能（II）以马来酸双酯为交联剂的缓释型减水剂", 《绿色建筑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948604A (en) * | 2016-04-28 | 2016-09-21 | 吴成继 | Method for preparing ground plaster |
| CN105924043A (en) * | 2016-04-29 | 2016-09-07 | 尹超 | Hydraulic cementing material |
| CN105924044A (en) * | 2016-04-30 | 2016-09-07 | 李程 | Building material mortar |
| CN105948562A (en) * | 2016-04-30 | 2016-09-21 | 李程 | Additive material for manufacturing cement-base plate |
| CN105906247A (en) * | 2016-05-02 | 2016-08-31 | 唐岁寒 | Constructional baking-free brick |
| CN105924045A (en) * | 2016-05-02 | 2016-09-07 | 李逸博 | Preparation method for building pouring material |
| CN108239237A (en) * | 2016-12-23 | 2018-07-03 | 上海东大化学有限公司 | Poly carboxylic acid series water reducer and preparation method thereof and application method |
| CN108239237B (en) * | 2016-12-23 | 2020-12-25 | 上海东大化学有限公司 | Polycarboxylic acid water reducing agent, and preparation method and use method thereof |
| CN109232830A (en) * | 2018-09-18 | 2019-01-18 | 科之杰新材料集团有限公司 | A kind of preparation method of concrete slump retaining type reinforcing agent |
| CN109232830B (en) * | 2018-09-18 | 2022-01-04 | 科之杰新材料集团有限公司 | Preparation method of concrete slump-retaining reinforcing agent |
| CN109879623A (en) * | 2019-03-26 | 2019-06-14 | 江苏百瑞吉新材料有限公司 | It is a kind of to protect the anti-chamotte mould polycarboxylic acids and preparation method thereof that collapses |
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| CN105503012B (en) | 2017-12-05 |
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