CN105503012B - It is a kind of to be used to produce the composition for being sustained anti-mud poly carboxylic acid series water reducer - Google Patents
It is a kind of to be used to produce the composition for being sustained anti-mud poly carboxylic acid series water reducer Download PDFInfo
- Publication number
- CN105503012B CN105503012B CN201510947148.0A CN201510947148A CN105503012B CN 105503012 B CN105503012 B CN 105503012B CN 201510947148 A CN201510947148 A CN 201510947148A CN 105503012 B CN105503012 B CN 105503012B
- Authority
- CN
- China
- Prior art keywords
- crosslinking agent
- composition
- water reducer
- unsaturated
- beta
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
It is used to produce the composition for being sustained anti-mud poly carboxylic acid series water reducer the invention discloses a kind of, said composition is made up of beta-unsaturated esters, crosslinking agent and cation unsaturated monomer, wherein crosslinking agent is the crosslinking agent with double unsaturated bonds, and the mean molecule quantity of crosslinking agent is 400 600 dalton, wherein the weight ratio of beta-unsaturated esters, crosslinking agent and cation unsaturated monomer is 35~50：3~7：5~15.Molecular weight is used to coordinate beta-unsaturated esters and cation unsaturated monomer for the crosslinking agent of double unsaturated bonds of specified molecular weight scope, so that the water reducer cross-linked network of production, the water reducer volume is low, and water-reducing rate is high, it is insensitive containing mud to sandstone with excellent slump holding capacity.
Description
Technical field：
It is more particularly to a kind of to be used to produce sustained release the invention belongs to concrete admixture field, especially water reducer field
The composition of anti-mud poly carboxylic acid series water reducer.
Background technology
CN104479084A proposes a kind of preparation method of the anti-mud agent of polycarboxylate, by the polyoxyethylene of unsaturated double-bond
Ether, unsaturated esters, unsaturated carboxylic acid and initiator high temperature etc. are synthesized, and without special Kang Ni functional groups, product is more difficult to be played
Anti- mud effect, and to be used with other compounding polycarboxylic acids.
CN103253886A proposes a kind of Polycarboxylate superplasticizer synergist, includes the low carbon number with terminal double bond
(C3-C6) fatty alcohol polyethenoxy ether class monomer and quaternaries cation monomer b with terminal double bond and double with end
Low carbon number (C3-C10) fatty acid ester of key.Although the synergist proposes the combination of beta-unsaturated esters and cation unsaturated monomer
Thing concept, but it does not solve slow release well, slow release effect is difficult to meet the market demand.
The present invention proposes a kind of composition for being used to produce the anti-mud poly carboxylic acid series water reducer of sustained release, is given birth to using said composition
The water reducer of production, can solve the problems, such as the flowability problem of soil and the slump of long period and divergence holding capacity.
The content of the invention
Present invention aims in view of the shortcomings of the prior art, there is provided one kind is used for the anti-mud polycarboxylic-acid of production sustained release and subtracted
The composition of aqua, said composition are made up of beta-unsaturated esters, crosslinking agent and cation unsaturated monomer, wherein crosslinking agent be with
The crosslinking agent of double unsaturated bonds, and the mean molecule quantity of crosslinking agent is 400-600 dalton, wherein beta-unsaturated esters, crosslinking agent and
The weight ratio of cation unsaturated monomer is 35~50：3~7：5~15.
Preferably, beta-unsaturated esters are hydroxy-ethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate second in above-mentioned composition
One or more kinds of mixtures of ester, hydroxy propyl methacrylate.
Preferably, crosslinking agent is polyethylene glycol maleic acid diester, polyethyleneglycol diacrylate, poly- second in above-mentioned composition
One kind of diol dimethacrylate.
Preferably, above-mentioned composition cationic unsaturated monomer is dimethyl diallyl ammonium chloride or pi-allyl front three
One or more kinds of mixtures in ammonium chloride.
Present invention also offers the preparation method of above-mentioned composition, it is characterised in that the raw material is weighed according to weight ratio,
10-20 minutes are stirred at normal temperatures.
Present invention also offers the purposes of above-mentioned composition, it is characterised in that can extend cement paste stream for producing
Water reducer that is dynamic, improving the cement slump and compression strength.
In such use, application above-mentioned composition production water reducer during, it is necessary to addition other materials into
Be divided into conventional can use into component selections, such as unsaturated carboxylic acid, polyether macromonomer, chain-transferring agent, reducing agent, oxidant etc.
Composition commonly used in the art, it can't influence the performance for the water reducer that above-mentioned composition is produced.
The present invention has significant beneficial effect compared with other techniques：
The composition of the present invention uses beta-unsaturated esters, crosslinking agent and the cation unsaturated monomer of special ratios, and adopts
With the crosslinking agent that molecular weight is 400-600 dalton, it ensure that the water reducer produced using said composition has good fluidity, compared with
The prolonged slump and divergence holding capacity are strong.
Embodiment
Composition prepares embodiment
Proportioning according to such as table 1 below weighs each raw material, is stirred at normal temperatures, and stirring obtains each composition in 15 minutes.
In table 1 it is raw materials used can market purchase.
Table 1 prepares water reducer composition
Water reducer prepares embodiment
According to the raw material and raw material weight being described in table 2 below, water reducer is prepared via a method which.
Step 1：Reducing agent and water are mixed and are sufficiently stirred, obtained solution A；
Step 2：Composition in unsaturated carboxylic acid, chain-transferring agent, composition embodiment, water are sufficiently stirred obtained solution
B；
Step 3：Polyether macromonomer and water are added into the reactor with temperature detector and electric mixer, stirring is extremely
All dissolvings, oxidant is added, is stirred, obtained solution C；
Step 4：Solution A and solution B are added dropwise into solution C, solution A is 1.5 hours in time for adding, when solution B is added dropwise
Between be 1 hour, after solution A and solution B are added dropwise, be incubated 1 hour, reconciled between pH value of solution is 6-7, subtracted with alkali lye
Aqua.
For raw material in table 2 and table 3 except composition is using the composition in composition embodiment, remaining raw material is market
It is commercially available.
7 kinds of water reducers, respectively water reducer 1-7 are prepared by using 7 kinds of compositions in table 1.
The water reducer 1-3 of the composition 1 of table 2 preparing raw material and its use scale
The water reducer 4-7 of table 3 preparing raw material and its use scale
Application effect embodiment
Paste flowing degree is tested：
Cement paste is tested according to GB/T8077-2012《Methods for testing uniformity of concrete admixture》Carry out.Using China
Profit PII42.5 cement and sodium bentonite are tested come the soil simulated in sandstone；Cement consumption is 300g, and water consumption is
70g。
By the cement paste stream for mixing the water reducer 1-7 in different amounts of sodium bentonite and above-mentioned water reducer embodiment outside
Dynamic degree, test data are shown in Table 4：
The cement paste correction data of table 4
From table 4, it can be seen that the cement prepared by using the water reducer 1-7 of composition 1-7 preparations, its is initial, 90min is net
In terms of starching fluidity, composition 1-4 prepares cement Example 1-1 to 1-4, embodiment 2-1 prepared by water reducer 1-4 and water reducer
To 2-4, embodiment 3-1 to 3-4, the water reducer 5-7 and cement Example prepared in terms of paste flowing degree better than composition 5-7
1-5 to 1-7, embodiment 2-5 to 2-7, embodiment 3-5 to 3-7, especially composition 4 and composition 5-7 paste flowing degree area
Not, the difference of composition is the ratio difference of beta-unsaturated esters, crosslinking agent and cation unsaturated monomer, is also exactly crosslinking agent
The difference of molecular weight, this performance for composition in terms of water reducer and cement is prepared is very crucial, and the present invention passes through insatiable hunger
With the setting of the ratio of ester, crosslinking agent and cation unsaturated monomer and the selection of cross-linker molecules amount realize preparation water reducer and
Its cement has excellent effect.
Concrete slump is tested：
This experiment cement is China Resources PII42.5R；Miberal powder is Shoudu Iron and Steel Co S95 level miberal powders；Flyash is Nanning second-level ash；Sand is
River sand, clay content 2.5%, the middle sand of modulus of fineness 2.6；Stone, the stone of particle diameter 5~25.Match ratio is cement：Miberal powder：
Flyash：Sand：Stone：Water=170：90：80：810：1070：150.Water reducer is proportionally added, mixing time is 180 seconds,
Vibrating time 15 seconds.
The concrete performance experimental result of table 5
As can be seen from Table 5, composition 1-4 prepares concrete prepared by water reducer and water reducer, in the slump, extension
It is better than the slump, the compression strength difference of composition 5-7, especially composition 4 and composition 5-7 in terms of degree, compression strength, from
The ratio for being beta-unsaturated esters, the crosslinking agent and cation unsaturated monomer difference of the difference of composition, is also exactly crosslinking agent
The difference of molecular weight, this performance for composition in terms of water reducer, cement, concrete is prepared is very crucial, can be with from table 5
Find out, water reducer, cement, concrete water-reducing effect are good, and concrete strength is higher, combination property preparing for composition of the invention
It is excellent, realize the function such as high diminishing, high-thin arch dam, anti-mud effect be good of water reducer.
Claims (6)
- Be used to producing the composition for being sustained anti-mud poly carboxylic acid series water reducer 1. a kind of, said composition by beta-unsaturated esters, crosslinking agent and Cation unsaturated monomer forms, and wherein crosslinking agent is the crosslinking agent with double unsaturated bonds, and the mean molecule quantity of crosslinking agent For 400-600 dalton, the wherein weight ratio of beta-unsaturated esters, crosslinking agent and cation unsaturated monomer is 35~50：3~7：5 ~15.
- 2. composition according to claim 1, wherein beta-unsaturated esters are hydroxy-ethyl acrylate, hydroxypropyl acrylate, methyl One or more kinds of mixtures of hydroxy-ethyl acrylate, hydroxy propyl methacrylate.
- 3. according to the composition described in claim any one of 1-2, wherein crosslinking agent is polyethylene glycol maleic acid diester, poly- second two One kind of alcohol diacrylate, polyethylene glycol dimethacrylate.
- 4. according to the composition described in claim any one of 1-2, its cationic unsaturated monomer is dimethyl diallyl The mixture of one or both of ammonium chloride or pi-allyl trimethyl ammonium chloride.
- 5. the preparation method of any one of the claim 1-4 compositions, it is characterised in that according to weight than carrying out stirring at normal temperature.
- 6. the purposes of any one of the claim 1-4 compositions, it is characterised in that can improve water-reducing rate for production, resist Mud, guarantor 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105503012A CN105503012A (en) | 2016-04-20 |
| CN105503012B true CN105503012B (en) | 2017-12-05 |
Family
ID=55711391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510947148.0A Active 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105503012B (en) |
Families Citing this family (9)
| 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 |
| CN105924045A (en) * | 2016-05-02 | 2016-09-07 | 李逸博 | Preparation method for building pouring material |
| CN105906247A (en) * | 2016-05-02 | 2016-08-31 | 唐岁寒 | Constructional baking-free brick |
| 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 |
| 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 |
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 |
|---|
| 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;刘海露等;《绿色建筑》;20140831(第4期);第88-91、94页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105503012A (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105503012B (en) | It is a kind of to be used to produce the composition for being sustained anti-mud poly carboxylic acid series water reducer | |
| CN103553413B (en) | A kind of sticky type polycarboxylate water-reducer and preparation method thereof of adjusting | |
| CN105110687B (en) | A kind of anti-mud collapse protective poly-carboxylic acid water reducing agent and preparation method thereof | |
| CN104261721B (en) | A kind of ethers polycarboxylic acid slump retaining agent and preparation method thereof | |
| CN105754047B (en) | A kind of phosphate ester-containing high-adaptability polycarboxylate water-reducer and preparation method thereof | |
| CN105776933B (en) | A kind of anti-mud polycarboxylic water reducer, its preparation method and application method | |
| CN103183795B (en) | Low air content polycarboxylic acid water reducer and preparation method thereof | |
| TWI787220B (en) | Concrete composition and preparation method thereof | |
| CN104371081B (en) | A kind of preparation method of rapid dispersion viscosity reduction type poly-carboxylic-acid cement dispersant | |
| CN105199054B (en) | A kind of synthesis technique of slump-retaining polycarboxylic acid type water reducing agent | |
| CN109879629A (en) | A kind of high-thin arch dam synergist and its preparation method and application | |
| CN103693881A (en) | Polycarboxylic acid water reducer, application and preparation method of polycarboxylic acid water reducer | |
| CN109134783A (en) | A kind of research work of air entrained type polycarboxylate water-reducer and preparation method thereof | |
| CN105601837B (en) | A kind of polycarboxylate water-reducer and preparation method thereof | |
| CN107176807A (en) | Mortar compositions | |
| CN112778468A (en) | Anti-mud polycarboxylate superplasticizer and preparation method thereof | |
| CN113200703B (en) | Low-air-entraining polycarboxylic acid type water reducing agent and preparation method thereof | |
| CN105601838B (en) | A kind of water-reducing agent prepared by beta-unsaturated esters and cationic unsaturated monomer and preparation method thereof | |
| CN105601154B (en) | A kind of graphene reinforcing agent and preparation method thereof | |
| CN102408526A (en) | Low-air entraining slow-settling polycarboxylate water reducer and preparation method thereof | |
| CN105731863B (en) | Glutinous type poly carboxylic acid series water reducer of one kind drop and preparation method thereof and application method | |
| CN102879299B (en) | Method for judging water demand of cementing material | |
| CN114292367B (en) | Mud-resistant water-retaining polycarboxylate water reducer for machine-made sand concrete and preparation method thereof | |
| CN103183797A (en) | Terminal alkenyl polyether and preparation method and application thereof | |
| KR20110070079A (en) | Manufacturing method of styrene-butadiene latex for very early strength modified concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |