CN105504185A - Polycarboxylate water reducing agent and preparation technology thereof - Google Patents
Polycarboxylate water reducing agent and preparation technology thereof Download PDFInfo
- Publication number
- CN105504185A CN105504185A CN201610058703.9A CN201610058703A CN105504185A CN 105504185 A CN105504185 A CN 105504185A CN 201610058703 A CN201610058703 A CN 201610058703A CN 105504185 A CN105504185 A CN 105504185A
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- polycarboxylate water
- weight part
- reducer
- reducing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
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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
- C04B24/2605—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a polycarboxylate water reducing agent. The polycarboxylate water reducing agent is characterized by being prepared from, by mass, 1800-2200 parts of methyl alkenyl polyoxyethylene ether, 2800-3500 parts of water, 18-22 parts of hydrogen peroxide, 100-180 parts of acrylic acid, 8-12 parts of ascorbic acid, 8-12 parts of mercaptopropionic acid, 100-120 parts of sodium hydroxide and 50-100 parts of silane. Compared with the cost of the adopted materials such as methyl alkenyl polyoxyethylene ether macromonomers, unsaturated carboxylic acid, amide or anhydride and unsaturated sulfonate monomers in the prior art, the cost of the raw materials adopted in preparation of the polycarboxylate water reducing agent is much lower, the whole preparation process does not need higher temperature, the fuel cost is low, the dangerousness is little, and no other harmful gas cannot be generated in the preparation process; when the polycarboxylate water reducing agent is added into cement, both the waterproofness and the anti-sloughing property are achieved.
Description
Technical field
The present invention relates to the manufacture technology field of polycarboxylate water-reducer, be specially a kind of polycarboxylate water-reducer and manufacture craft thereof
Background technology
Concrete admixture adds in concrete-agitating process, and in order to improve the material newly mixing and stirring properties of hardened concrete, its volume is less than 5% of cement weight.The volume of high performance water reducing agent of polyocarboxy acid in concrete is generally 0.18% (cement weight), is to use admixture that is large, applied range in concrete admixture.It can realize following purpose for concrete: when concrete workability is identical, reduces the reinforcement of concrete water yield significantly, can improve concrete strength; When concrete water-cement ratio is identical, concrete workability can be improved significantly; When concrete workability is identical with intensity, the 20-30% of cement consumption can be saved.High performance water reducing agent of polyocarboxy acid can be directly used in concrete, and the composite raw material also can making various difference in functionality admixture uses.
Summary of the invention
The object of the present invention is to provide a kind of polycarboxylate water-reducer, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme: a kind of polycarboxylate water-reducer, is characterized in that: by mass parts, comprise following component:
Preferably, mass parts is according to methyl thiazolinyl Soxylat A 25-7 2000 parts, and 3000 parts, water, 20 parts, hydrogen peroxide, 130 parts, vinylformic acid, 10 parts, xitix, thiohydracrylic acid 10 parts, the polycarboxylate water-reducer performance that 110 parts, sodium hydroxide and silane 80 parts of proportionings go out is best.
The manufacture craft of polycarboxylate water-reducer is as follows:
S1: adopt weight part to be the silane of 50-100 part and weight part to be the methyl thiazolinyl Soxylat A 25-7 of 1800-2200 part mixed and modified, the methyl thiazolinyl Soxylat A 25-7 of modification drops in polymerization reaction kettle in 45 DEG C-55 DEG C time, to drop into weight part be the water of 2800-3500 part and weight part is simultaneously the hydrogen peroxide of 18-22 part, is warming up to 60 DEG C-65 DEG C;
S2: drip the thiohydracrylic acid that weight part is the vinylformic acid of 100-180 part, weight part is 8-12 part xitix and weight part are 8-12 part, starts holding temperature 60-65 DEG C amount to 5 hours, polymerization reaction take place from dripping, generate poly carboxylic acid;
S3: be cooled to temperature lower than 50 DEG C, add-on part is that to be neutralized to pH value be 4-6 to the sodium hydroxide of 100-120 part, and reaction completes, and obtains polycarboxylate water-reducer.
Compared with prior art, the invention has the beneficial effects as follows: the methyl thiazolinyl Soxylat A 25-7 polymeric monomer that the starting material of employing prepared by this polycarboxylate water-reducer and prior art adopt, unsaturated carboxylic acid, acid amides or acid anhydrides, the cost of the materials such as unsaturated sulfonic acid salt monomer is low many, do not need too high temperature in the process of whole preparation, fuel cost is low, dangerous little, and other obnoxious flavoures can not be produced in the process of preparation, add in cement and not only there is water-repellancy but also have anti-collapse.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of technical scheme: a kind of polycarboxylate water-reducer, is characterized in that: by mass parts, comprise following component:
Embodiment 1
A manufacture craft for polycarboxylate water-reducer, the manufacture craft of polycarboxylate water-reducer is as follows:
S1: adopt weight part to be the silane of 60 parts and weight part to be the methyl thiazolinyl Soxylat A 25-7 of 1800 parts mixed and modified, the methyl thiazolinyl Soxylat A 25-7 of modification drops in polymerization reaction kettle in 50 DEG C time, to drop into weight part be the water of 3000 parts and weight part is simultaneously the hydrogen peroxide of 20 parts, is warming up to 62 DEG C;
S2: to drip weight part be vinylformic acid, the weight part of 110 parts to be the xitix of 10 parts and weight part the be thiohydracrylic acid of 10 parts, starts holding temperature 62 DEG C amount to 5 hours, polymerization reaction take place from dripping, generate poly carboxylic acid;
S3: be cooled to temperature lower than 50 DEG C, add-on part is that to be neutralized to pH value be 5 to the sodium hydroxide of 110 parts, and reaction completes, and obtains polycarboxylate water-reducer.
Embodiment 2
A manufacture craft for polycarboxylate water-reducer, the manufacture craft of polycarboxylate water-reducer is as follows:
S1: adopt weight part to be the silane of 70 parts and weight part to be the methyl thiazolinyl Soxylat A 25-7 of 1900 parts mixed and modified, the methyl thiazolinyl Soxylat A 25-7 of modification drops in polymerization reaction kettle in 55 DEG C time, to drop into weight part be the water of 3100 parts and weight part is simultaneously the hydrogen peroxide of 21 parts, is warming up to 62 DEG C;
S2: to drip weight part be vinylformic acid, the weight part of 130 parts to be the xitix of 10 parts and weight part the be thiohydracrylic acid of 11 parts, starts holding temperature 63 DEG C amount to 5 hours, polymerization reaction take place from dripping, generate poly carboxylic acid;
S3: be cooled to temperature lower than 50 DEG C, add-on part is that to be neutralized to pH value be 6 to the sodium hydroxide of 110 parts, and reaction completes, and obtains polycarboxylate water-reducer.
Embodiment 3
A manufacture craft for polycarboxylate water-reducer, the manufacture craft of polycarboxylate water-reducer is as follows:
S1: adopt weight part to be the silane of 90 parts and weight part to be the methyl thiazolinyl Soxylat A 25-7 of 2100 parts mixed and modified, the methyl thiazolinyl Soxylat A 25-7 of modification drops in polymerization reaction kettle in 48 DEG C time, to drop into weight part be the water of 3200 parts and weight part is simultaneously the hydrogen peroxide of 21 parts, is warming up to 64 DEG C;
S2: to drip weight part be vinylformic acid, the weight part of 170 parts to be the xitix of 12 parts and weight part the be thiohydracrylic acid of 10 parts, starts holding temperature 64 DEG C amount to 5 hours, polymerization reaction take place from dripping, generate poly carboxylic acid;
S3: be cooled to temperature lower than 50 DEG C, add-on part is that to be neutralized to pH value be 4 to the sodium hydroxide of 110 parts, and reaction completes, and obtains polycarboxylate water-reducer.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (3)
1. a polycarboxylate water-reducer, is characterized in that: by mass parts, comprises following component:
2. a kind of polycarboxylate water-reducer according to claim 1, it is characterized in that: mass parts is according to methyl thiazolinyl Soxylat A 25-7 2000 parts, 3000 parts, water, 20 parts, hydrogen peroxide, 130 parts, vinylformic acid, 10 parts, xitix, thiohydracrylic acid 10 parts, the polycarboxylate water-reducer performance that 110 parts, sodium hydroxide and silane 80 parts of proportionings go out is best.
3. the manufacture craft of a claim 1 to described polycarboxylate water-reducer is as follows:
S1: adopt weight part to be the silane of 50-100 part and weight part to be the methyl thiazolinyl Soxylat A 25-7 of 1800-2200 part mixed and modified, the methyl thiazolinyl Soxylat A 25-7 of modification drops in polymerization reaction kettle in 45 DEG C-55 DEG C time, to drop into weight part be the water of 2800-3500 part and weight part is simultaneously the hydrogen peroxide of 18-22 part, is warming up to 60 DEG C-65 DEG C;
S2: drip the thiohydracrylic acid that weight part is the vinylformic acid of 100-180 part, weight part is 8-12 part xitix and weight part are 8-12 part, starts holding temperature 60-65 DEG C amount to 5 hours, polymerization reaction take place from dripping, generate poly carboxylic acid;
S3: be cooled to temperature lower than 50 DEG C, add-on part is that to be neutralized to pH value be 4-6 to the sodium hydroxide of 100-120 part, and reaction completes, and obtains polycarboxylate water-reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610058703.9A CN105504185A (en) | 2016-01-28 | 2016-01-28 | Polycarboxylate water reducing agent and preparation technology thereof |
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| CN201610058703.9A CN105504185A (en) | 2016-01-28 | 2016-01-28 | Polycarboxylate water reducing agent and preparation technology thereof |
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| CN105504185A true CN105504185A (en) | 2016-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348858A (en) * | 2018-12-29 | 2020-06-30 | 江苏苏博特新材料股份有限公司 | Early-strength polycarboxylate superplasticizer and preparation method thereof |
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| CN102731730A (en) * | 2012-06-21 | 2012-10-17 | 马清浩 | Hydrogen peroxide auxiliarily-initiated carboxylic acid water reducer and its preparation method |
| CN102951866A (en) * | 2012-06-21 | 2013-03-06 | 马清浩 | Ascorbic acid modified carboxylic water reducer and preparation method thereof |
| CN104311753A (en) * | 2014-10-11 | 2015-01-28 | 上海东大化学有限公司 | Silane modified polycarboxylate-type water reducing agent as well as preparation method and use method thereof |
| CN104592460A (en) * | 2015-01-28 | 2015-05-06 | 南京瑞迪高新技术有限公司 | Preparation method of reduction type polycarboxylate superplasticizer |
| CN104788629A (en) * | 2014-12-17 | 2015-07-22 | 厦门路桥翔通建材科技有限公司 | Polycarboxylate water-reducing agent and normal-temperature preparation method thereof |
| CN104945572A (en) * | 2015-05-25 | 2015-09-30 | 江苏奥莱特新材料有限公司 | Low-air-entraining enhanced solid polycarboxylic acid water reducing agent and preparation method thereof |
| CN105037643A (en) * | 2015-06-25 | 2015-11-11 | 贵州省瓮安新源新材料有限公司 | Polycarboxylate water reducing agent and preparation method thereof |
| CN105271885A (en) * | 2015-09-24 | 2016-01-27 | 四川恒泽建材有限公司 | Mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and preparation method thereof |
-
2016
- 2016-01-28 CN CN201610058703.9A patent/CN105504185A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731730A (en) * | 2012-06-21 | 2012-10-17 | 马清浩 | Hydrogen peroxide auxiliarily-initiated carboxylic acid water reducer and its preparation method |
| CN102951866A (en) * | 2012-06-21 | 2013-03-06 | 马清浩 | Ascorbic acid modified carboxylic water reducer and preparation method thereof |
| CN104311753A (en) * | 2014-10-11 | 2015-01-28 | 上海东大化学有限公司 | Silane modified polycarboxylate-type water reducing agent as well as preparation method and use method thereof |
| CN104788629A (en) * | 2014-12-17 | 2015-07-22 | 厦门路桥翔通建材科技有限公司 | Polycarboxylate water-reducing agent and normal-temperature preparation method thereof |
| CN104592460A (en) * | 2015-01-28 | 2015-05-06 | 南京瑞迪高新技术有限公司 | Preparation method of reduction type polycarboxylate superplasticizer |
| CN104945572A (en) * | 2015-05-25 | 2015-09-30 | 江苏奥莱特新材料有限公司 | Low-air-entraining enhanced solid polycarboxylic acid water reducing agent and preparation method thereof |
| CN105037643A (en) * | 2015-06-25 | 2015-11-11 | 贵州省瓮安新源新材料有限公司 | Polycarboxylate water reducing agent and preparation method thereof |
| CN105271885A (en) * | 2015-09-24 | 2016-01-27 | 四川恒泽建材有限公司 | Mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348858A (en) * | 2018-12-29 | 2020-06-30 | 江苏苏博特新材料股份有限公司 | Early-strength polycarboxylate superplasticizer and preparation method thereof |
| CN111348858B (en) * | 2018-12-29 | 2022-03-18 | 江苏苏博特新材料股份有限公司 | Early-strength polycarboxylate superplasticizer and preparation method thereof |
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Application publication date: 20160420 |
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