CN104448156B - A kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer - Google Patents
A kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer Download PDFInfo
- Publication number
- CN104448156B CN104448156B CN201410673602.3A CN201410673602A CN104448156B CN 104448156 B CN104448156 B CN 104448156B CN 201410673602 A CN201410673602 A CN 201410673602A CN 104448156 B CN104448156 B CN 104448156B
- Authority
- CN
- China
- Prior art keywords
- solution
- room temperature
- water reducer
- polycarboxylic acid
- parts
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 48
- 239000002253 acid Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000243 solution Substances 0.000 claims abstract description 34
- 239000008367 deionised water Substances 0.000 claims abstract description 24
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 24
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 12
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 12
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000178 monomer Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000007800 oxidant agent Substances 0.000 claims abstract description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 26
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 11
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 235000019260 propionic acid Nutrition 0.000 claims description 9
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 9
- 238000010526 radical polymerization reaction Methods 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- 230000001603 reducing effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 238000010189 synthetic method Methods 0.000 abstract 1
- 229920005646 polycarboxylate Polymers 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003599 detergent Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920005551 calcium lignosulfonate Polymers 0.000 description 1
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The present invention relates to additive for building material technical field, more particularly, to a kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer.This method is using methyl allyl polyoxyethylene ether, acrylic acid as reaction monomers, the redox system set up by oxidants hydrogen peroxide, reducing agent rongalite, and specific synthetic method is：Using methyl allyl polyoxyethylene ether, hydrogen peroxide and deionized water as bottom liquid, the water solution A and rongalite aqueous solution B of acrylic acid and chain-transferring agent is added dropwise, Raolical polymerizable is carried out at room temperature.This method can be synthesized at room temperature, and energy consumption is small, economic and environment-friendly.Preparation technology of the present invention is simple, and the water reducer of synthesis has high water reducing rate, and fluidity, function of slump protection are good.
Description
Technical field
The present invention relates to additive for building material technical field, more particularly, to a kind of room temperature of high-efficiency polycarboxylic acid water reducer
Preparation method.
Background technology
With the development of building trade, the requirement in engineer applied to water reducer is stepped up.Grew up in recent years
Poly carboxylic acid series water reducer is known as after the first generation water reducer using calcium lignosulfonate as representative and using naphthalene system as the second of representative both at home and abroad
For the third generation high-performance water reducing agent grown up after water reducer.Polycarboxylate water-reducer because its water-reducing rate is high, adaptability compared with
Good the advantages of, great popularization and application are obtained.
Chinese patent（CN103275280A）A kind of normal temperature synthesis method of polyocarboxy acid type high-thin arch dam water reducer is disclosed, is led to
Unsaturated polyether, unsaturated carboxylic acid are crossed for raw material, by the foundation of redox system, polyocarboxy acid type diminishing has been synthesized at room temperature
Agent, but the conversion ratio of this method product is low, and the reaction time is long.Therefore, seek it is a kind of at room temperature can synthesize, technique is simple
Controllable and efficiently high-efficiency polycarboxylic acid water reducer preparation method is extremely urgent.
The content of the invention
In view of the above-mentioned problems, the invention provides a kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer, this water reducer
It can synthesize at room temperature, short the time required to reaction, products obtained therefrom water-reducing rate is high, function of slump protection is good, properties of product are stable.
The technical scheme is that：
The invention provides a kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer, reaction monomers pass through radical polymerization
Carry out according to the following steps：
A. monomer methyl allyl polyoxyethylene ether, the hydrogen peroxide of oxidant 30% and deionized water are put into as bed material
In reactor, stirring is to being completely dissolved；
B. configured in advance good solution A and solution B are added dropwise simultaneously after bed material dissolving, solution A was added dropwise to complete through 1 hour, molten
Liquid B was added dropwise to complete through 1.5 hours, after solution B completion of dropwise addition, continued stirring reaction 30 minutes；
C. it is 6-7 the liquid caustic soda that above-mentioned mixed solution is 32% with mass concentration to be adjusted into pH value, rear to continue to stir 20 minutes,
Produce described high-efficiency polycarboxylic acid water reducer；
Described solution A is monomeric acrylic, the thin base propionic acid of chain-transferring agent and deionized water；
Described solution B is reducing agent rongalite and deionized water.
Described radical polymerization system is composed of the following raw materials by weight：Methyl allyl polyoxyethylene ether 280-330,
30% hydrogen peroxide（30%H2O2）2.5-4.5 part, acrylic acid（AA）40-52 parts, dredge base propionic acid 1.2-2.0, rongalite
1.2-2；
The deionized water quality is 1.5-2.5 times of each raw material gross mass.
The molecular weight of described methyl allyl polyoxyethylene ether is 2000-2400.
Described liquid caustic soda is sodium hydrate aqueous solution.
30% described hydrogen peroxide is the aqueous hydrogen peroxide solution that mass concentration is 30%.
The present invention triggers radical polymerization, reaction is carried out at room temperature, formaldehyde by using redox system
Sodium bisulphite has strong reducing property, can prevent hydroxyl excessive in water reducer from causing cement to be adsorbed by moment, improves coagulation
The slump holding capacity of soil, by adjusting proportion relation of the oxidant with reducing agent, determines each monomer consumption, improves conversion
Rate, prevents the waste of raw material and is effectively controlled the generation of high temperature side reaction.The water reducer has high water reducing rate, function of slump protection
It is good, it is applied widely, it is adapted to industrialization large-scale production.
Advantages of the present invention and beneficial effect：
1. the present invention is by the foundation of redox system, strong reducing property rongalite is added, is at room temperature
It can be synthesized, energy consumption is small, it is economic and environment-friendly.
2. preparation technology of the present invention is simple, the water reducer of synthesis has high water reducing rate, and fluidity, function of slump protection are good.
Embodiment
Below by embodiment, the present invention will be further elaborated, and the description below is only for explaining the present invention, not
Its content is defined.
Embodiment 1
A kind of high-efficiency polycarboxylic acid water reducer, is made up of the raw material of following parts by weight：
Bed material：Methyl allyl polyoxyethylene ether：280、30%H2O2：2.6th, deionized water：280；
Solution A：AA：40th, base propionic acid is dredged：1.2nd, deionized water：65；
Solution B：Rongalite：1.25, deionized water：165.
A kind of preparation method of high-efficiency polycarboxylic acid water reducer：Under room temperature condition, solution A, time for adding are added dropwise into bottom liquid
For 1 hour, while solution B is added dropwise into bottom liquid, time for adding was 1.5 hours；After being added dropwise to complete, insulation continues to react 30 points
Clock, the sodium hydrate aqueous solution regulation pH value that the mass concentration for then adding 22-30 parts by weight is 32% is 6-7, continues to stir 20
Minute, both the heavy duty detergent polycarboxylate water-reducer.
Embodiment 2
A kind of high-efficiency polycarboxylic acid water reducer, is made up of the raw material of following parts by weight：
Bed material：Methyl allyl polyoxyethylene ether：293、30%H2O2：3.0th, deionized water：300；
Solution A：AA：43.5th, base propionic acid is dredged：1.45, deionized water：75；
Solution B：Rongalite：1.5th, deionized water：170.
A kind of preparation method of high-efficiency polycarboxylic acid water reducer：Under room temperature condition, solution A, time for adding are added dropwise into bottom liquid
For 1 hour, while solution B is added dropwise into bottom liquid, time for adding was 1.5 hours；After being added dropwise to complete, insulation continues to react 30 points
Clock, the sodium hydrate aqueous solution regulation pH value that the mass concentration for then adding 22-30 parts by weight is 32% is 6-7, continues to stir 20
Minute, both the heavy duty detergent polycarboxylate water-reducer.
Embodiment 3
A kind of high-efficiency polycarboxylic acid water reducer, is made up of the raw material of following parts by weight：
Bed material：Methyl allyl polyoxyethylene ether：306、30%H2O2：3.56, deionized water：315；
Solution A：AA：46.8th, base propionic acid is dredged：1.7th, deionized water：88；
Solution B：Rongalite：1.63, deionized water：182.
A kind of preparation method of high-efficiency polycarboxylic acid water reducer：Under room temperature condition, solution A, time for adding are added dropwise into bottom liquid
For 1 hour, while solution B is added dropwise into bottom liquid, time for adding was 1.5 hours；After being added dropwise to complete, insulation continues to react 30 points
Clock, the sodium hydrate aqueous solution regulation pH value that the mass concentration for then adding 22-30 parts by weight is 32% is 6-7, continues to stir 20
Minute, both the heavy duty detergent polycarboxylate water-reducer.
Embodiment 4
A kind of high-efficiency polycarboxylic acid water reducer, is made up of the raw material of following parts by weight：
Bed material：Methyl allyl polyoxyethylene ether：319、30%H2O2：4.2nd, deionized water：335；
Solution A：AA：49.2nd, base propionic acid is dredged：1.85, deionized water：95；
Solution B：Rongalite：1.79, deionized water：200.
A kind of preparation method of high-efficiency polycarboxylic acid water reducer：Under room temperature condition, solution A, time for adding are added dropwise into bottom liquid
For 1 hour, while solution B is added dropwise into bottom liquid, time for adding was 1.5 hours；After being added dropwise to complete, insulation continues to react 30 points
Clock, the sodium hydrate aqueous solution regulation pH value that the mass concentration for then adding 22-30 parts by weight is 32% is 6-7, continues to stir 20
Minute, both the heavy duty detergent polycarboxylate water-reducer.
Embodiment 5
A kind of high-efficiency polycarboxylic acid water reducer, is made up of the raw material of following parts by weight：
Bed material：Methyl allyl polyoxyethylene ether：330、30%H2O2：4.45, deionized water：350；
Solution A：AA：52nd, base propionic acid is dredged：1.9th, deionized water：110；
Solution B：Rongalite：2.0th, deionized water：210.
A kind of preparation method of high-efficiency polycarboxylic acid water reducer：Under room temperature condition, solution A, time for adding are added dropwise into bottom liquid
For 1 hour, while solution B is added dropwise into bottom liquid, time for adding was 1.5 hours；After being added dropwise to complete, insulation continues to react 30 points
Clock, it is 6-7 then to add the sodium hydrate aqueous solution regulation pH value that mass concentration is 32%, continues to stir 20 minutes, had both obtained described
Heavy duty detergent polycarboxylate water-reducer.
Comparative example 1：The polycarboxylate water-reducer is using ferrous sulfate as reducing agent, and other step be the same as Examples 3 are identical.
Comparative example 2：Contrast product is commercially available polycarboxylate water-reducer
Found through Experimental Comparison, the reaction time needed for comparative example 1 than the present invention long 3 hours or so, product income rate is low.
Application Example
Using reference cement, according to《Concrete admixture》（GB8076-2008）In test request, compare the present invention
The high-efficiency polycarboxylic acid water reducer of preparation（Embodiment 1-5）With comparative example 1, the water-reducing rate of comparative example 2, fluidity, the slump, as a result
It is shown in Table 1.
Table 1
As can be seen from the table, the high-efficiency polycarboxylic acid water reducer for preparing of the present invention has that fluidity is big, water-reducing rate is high, and guarantor is collapsed
The excellent feature of performance.
Above-described embodiment is not limited for the present invention preferably embodiment, but embodiments of the present invention by embodiment
System, other any Spirit Essences and the change made under principle, modifications without departing from the present invention, combines, substitutes, simplifying and should be
Equivalence replacement mode, is included within protection scope of the present invention.
Claims (3)
1. the room temperature preparation method of a kind of high-efficiency polycarboxylic acid water reducer, it is characterised in that by radical polymerization according to the following steps
Carry out：
A. monomer methyl allyl polyoxyethylene ether, the hydrogen peroxide of oxidant 30% and deionized water are put into as bed material and reacted
In kettle, stirring is to being completely dissolved；
B. configured in advance good solution A and solution B are added dropwise simultaneously after bed material dissolving, solution A was added dropwise to complete through 1 hour, solution B warp
It is added dropwise to complete within 1.5 hours, after solution B completion of dropwise addition, continues stirring reaction 30 minutes；
C. it is 6-7 the liquid caustic soda that above-mentioned mixed solution is 32% with mass concentration to be adjusted into pH value, rear to continue to stir 20 minutes, is produced
Described high-efficiency polycarboxylic acid water reducer；
Described solution A is monomeric acrylic, the thin base propionic acid of chain-transferring agent and deionized water；
Described solution B is reducing agent rongalite and deionized water；
Described radical polymerization system is made up of the raw material of following parts by weight：280-330 parts of methyl allyl polyoxyethylene ether,
30% 2.5-4.5 parts of hydrogen peroxide, 40-52 parts of acrylic acid, thin 1.2-2.0 parts of base propionic acid, 1.2-2 parts of rongalite；
The deionized water quality is 1.5-2.5 times of each raw material gross mass.
2. the room temperature preparation method of high-efficiency polycarboxylic acid water reducer according to claim 1, it is characterised in that：Described methyl
The molecular weight of allyl polyethenoxy ether is 2000-2400.
3. the room temperature preparation method of high-efficiency polycarboxylic acid water reducer according to claim 1, it is characterised in that：Described liquid caustic soda
For sodium hydrate aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673602.3A CN104448156B (en) | 2014-11-22 | 2014-11-22 | A kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673602.3A CN104448156B (en) | 2014-11-22 | 2014-11-22 | A kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104448156A CN104448156A (en) | 2015-03-25 |
| CN104448156B true CN104448156B (en) | 2017-09-29 |
Family
ID=52894955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673602.3A Active CN104448156B (en) | 2014-11-22 | 2014-11-22 | A kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104448156B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105037648B (en) * | 2015-08-25 | 2019-01-15 | 科之杰新材料集团有限公司 | It is a kind of to protect collapse water reducing type polycarboxylate water-reducer and its low-temperature rapid preparation method |
| CN105330193B (en) * | 2015-11-24 | 2017-12-26 | 同济大学 | Nuclear power ultra dense real concrete polycarboxylate water-reducer and preparation method thereof |
| CN105542091B (en) * | 2015-12-16 | 2019-02-01 | 广东复特新型材料科技有限公司 | A kind of anti-mud polycarboxylate high performance water-reducing agent of sustained release cationic and preparation method thereof |
| CN105418856B (en) * | 2015-12-18 | 2017-10-24 | 中建商品混凝土有限公司 | A kind of wide temperature range of normal temperature synthesizes the preparation method of polycarboxylate water-reducer |
| CN105524230B (en) * | 2015-12-24 | 2018-07-06 | 湖南铭煌科技发展有限公司 | A kind of preparation method of high-efficiency water-reducing agent of poly-carboxylic acid |
| CN105622862A (en) * | 2015-12-28 | 2016-06-01 | 沈阳华盈环保材料有限公司 | Concrete polycarboxylate water reducing agent and preparing method thereof |
| CN106380552A (en) * | 2016-09-29 | 2017-02-08 | 湖北工业大学 | High-adaptability polycarboxylic acid water reducing agent master batch |
| CN106632742A (en) * | 2016-12-30 | 2017-05-10 | 长沙加美乐素化工有限公司 | Composite activator system and method for preparing concrete water-reducing admixture from same |
| CN108586674A (en) * | 2018-05-18 | 2018-09-28 | 萧县沃德化工科技有限公司 | A method of preparing polycarboxylate water-reducer using itaconic acid waste liquid |
| CN108585595A (en) * | 2018-06-26 | 2018-09-28 | 云南圣比奥建材有限公司 | High performance water reducing agent of polyocarboxy acid and preparation method thereof |
| CN109336448B (en) * | 2018-12-07 | 2021-07-13 | 临沂海螺新材料科技有限公司 | Liquid cement chromium-removing grinding aid and preparation method thereof |
| CN113072317A (en) * | 2021-02-24 | 2021-07-06 | 山西佳维新材料股份有限公司 | Polycarboxylate superplasticizer and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775107A (en) * | 2010-02-03 | 2010-07-14 | 北京冶建特种材料有限公司 | Preparation method of concrete polycarboxylate water-reducer at normal temperature |
| CN101928114A (en) * | 2010-08-30 | 2010-12-29 | 大连建科北方化学有限公司 | High water reduction high collapse protection type polycarboxylate high-performance water reducer and pyrogen-free preparation method thereof |
| CN102060466A (en) * | 2010-12-01 | 2011-05-18 | 镇江市百瑞吉混凝土外加剂有限公司 | Antisepsis type polycarboxylate high-performance water reducing agent and preparation method thereof |
-
2014
- 2014-11-22 CN CN201410673602.3A patent/CN104448156B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775107A (en) * | 2010-02-03 | 2010-07-14 | 北京冶建特种材料有限公司 | Preparation method of concrete polycarboxylate water-reducer at normal temperature |
| CN101928114A (en) * | 2010-08-30 | 2010-12-29 | 大连建科北方化学有限公司 | High water reduction high collapse protection type polycarboxylate high-performance water reducer and pyrogen-free preparation method thereof |
| CN102060466A (en) * | 2010-12-01 | 2011-05-18 | 镇江市百瑞吉混凝土外加剂有限公司 | Antisepsis type polycarboxylate high-performance water reducing agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104448156A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104448156B (en) | A kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer | |
| CN105367720B (en) | A kind of diminishing collapse protective poly-carboxylic acid water reducing agent and preparation method thereof | |
| CN102358768B (en) | Modified ether polycarboxylic acid water reducing agent and preparation method thereof | |
| CN103980432B (en) | Containing polycarboxylate water-reducer and its preparation method of modified soluble acrylate | |
| CN109705282A (en) | A kind of preparation method of novel polyether synthesis superelevation water reducing type polycarboxylate water-reducer | |
| CN102936109A (en) | Polycarboxylic acid water reducing agent, preparation method and application thereof | |
| CN105174783B (en) | A kind of Xu puts type poly carboxylic acid series water reducer and its preparation method and application | |
| WO2016026346A1 (en) | Low-temperature method for preparing high-adaptability ether polycarboxylic acid water reducer | |
| CN106277899A (en) | A kind of polycarboxylate water-reducer and preparation method thereof | |
| CN104356316B (en) | Polycarboxylic acid water reducer prepared from running water and preparation method of polycarboxylic acid water reducer | |
| CN104356314A (en) | Normal-temperature synthetizing method for slow release type polycarboxylate water-reducer and product produced by same | |
| CN103864338A (en) | Oxydative degradation starch grafted polycarboxylate superplasticizer and preparation method thereof | |
| CN104479082B (en) | A kind of sustained-release polycarboxylic water reducer and preparation method thereof | |
| CN102603223A (en) | Polycarboxylic acid water reducer with solid raw materials and preparing process of the polycarboxylic acid water reducer | |
| CN106188423A (en) | A kind of sustained-release polycarboxylic super plasticizer and preparation method thereof | |
| CN109134785A (en) | A kind of preparation method and applications based on butylene glycol polyoxyethylene ether and copolymers of unsaturated carboxylic acids | |
| CN102627744B (en) | Preparation method of ether amphoteric polycarboxylic acid water reducing agent | |
| CN105130269A (en) | High-water-reduction high-early-strength type polycarboxylic acid water reducing agent and pyrogen-free preparation method thereof | |
| CN104371074A (en) | Low-temperature high-concentration polycarboxylic acid water reducing agent and preparation method thereof | |
| CN103708759A (en) | Modified efficient aliphatic water reducer and preparation method thereof | |
| CN104371075B (en) | A kind of preparation method of the polycarboxylate water-reducer of room temperature synthesis | |
| CN102504135B (en) | Preparation method of retarding and efficient water reducing agent for silicate cement and calcined gypsum | |
| CN105175740A (en) | Preparation method of polycarboxylic acid water reducer with high workability | |
| CN103723944B (en) | Efficient concrete water reducer and preparation method thereof | |
| CN105036596A (en) | Low-temperature synthesis polycarboxylate superplasticizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 235200 Anhui city of Suzhou province Xiaoxian Shengquan Township Industrial Park Applicant after: ANHUI XIN SOLID ENVIRONMENTAL CO., LTD. Address before: 235200 Anhui city of Suzhou province Xiaoxian Shengquan Township Industrial Park Applicant before: Xiao County Xingu Concrete Admixture Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Haoyu Inventor after: Ma Litao Inventor after: Liu Jiwei Inventor after: Yang Daoshun Inventor after: Li Ning Inventor before: Liu Jiwei Inventor before: Ma Litao Inventor before: Wang Haoyu |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Room-temperature preparation method for high-efficiency polycarboxylic acid water reducing agent Effective date of registration: 20190108 Granted publication date: 20170929 Pledgee: Xiaoxian finance Company limited by guarantee Pledgor: ANHUI XIN SOLID ENVIRONMENTAL CO., LTD. Registration number: 2019340000024 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210304 Granted publication date: 20170929 Pledgee: Xiaoxian finance Company limited by guarantee Pledgor: ANHUI XIN SOLID ENVIRONMENTAL Co.,Ltd. Registration number: 2019340000024 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |