CN109133697A - A kind of Compositional type polycarboxylate water-reducer and the preparation method for preparing polycarboxylate water-reducer in the Compositional type polycarboxylate water-reducer - Google Patents
A kind of Compositional type polycarboxylate water-reducer and the preparation method for preparing polycarboxylate water-reducer in the Compositional type polycarboxylate water-reducer Download PDFInfo
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- CN109133697A CN109133697A CN201810878549.9A CN201810878549A CN109133697A CN 109133697 A CN109133697 A CN 109133697A CN 201810878549 A CN201810878549 A CN 201810878549A CN 109133697 A CN109133697 A CN 109133697A
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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
- C04B24/16—Sulfur-containing compounds
- C04B24/161—Macromolecular compounds comprising sulfonate or sulfate groups
- C04B24/163—Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/165—Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds containing polyether side chains
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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
- 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
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
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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
- C08F8/00—Chemical modification by after-treatment
- C08F8/14—Esterification
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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
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Abstract
The present invention relates to a kind of Compositional type polycarboxylate water-reducer, including 8-20 parts of polycarboxylate water-reducer, 3-7 parts of methacrylate; 1-3 parts of tertiary carbonic ester, 0.2-0.5 parts of N- acyl group sarcosine, 2-6 parts of hydroxypropyl starch ether; 2-3 parts of glycerol, 2-4 parts of neopelex, 20-28 parts of water；The polycarboxylate water-reducer is made of isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxyethylene ether, methyl allyl polyoxyethylene ether, halogenated aliphatic acid, sucrose ester, Sodium Allyl Sulfonate, sodium peroxydisulfate, maleic anhydride, tartaric acid, cinnamic acid, sodium hydroxide, thioglycolic acid, triethanolamine and thiocarbamide.The present invention also provides a kind of preparation methods for preparing polycarboxylate water-reducer in above-mentioned Compositional type polycarboxylate water-reducer.The present invention not only superior performance；And workability is good.
Description
Technical field
The present invention relates to the technical field of water-reducing agent, specifically a kind of Compositional type polycarboxylate water-reducer and the compounding is prepared
The preparation method of polycarboxylate water-reducer in type polycarboxylate water-reducer.
Background technique
With the development of concrete technology, high-performance water reducing agent has become component indispensable in concrete use process
One of.Poly carboxylic acid series water reducer is since the 1980s, with the low water-reducing rate of its volume is high, slump retaining is good, can assign coagulation
The various benefit performances of soil material, MOLECULE DESIGN be strong, the advantages such as environmentally protective, gets the favour of people, becomes diminishing in recent years
The Hot spots for development of agent technology and direction.
There is polyethers poly carboxylic acid series water reducer very high water-reducing rate and guarantor to collapse ability, and in China, high-speed rail and highway are built
The reference built in engineering is more and more extensive.After decades of development, occurred in the market it is a variety of have different molecular structures and
The poly carboxylic acid series water reducer of performance characteristics is widely used in each engineering.But as polycarboxylate water-reducer is answered
With the expansion in face, some problems are also gradually displayed, such as: it is not strong to certain special cement adaptabilities, to clay content, mountain flour
Easily there is the problem of function of slump protection deficiency in the higher concrete of content, bleeding easily occurs, especially in the concrete of middle low grade,
Workability is bad.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of superior performance, the good Compositional type polycarboxylate water-reducer of workability.
The technical scheme of the invention to solve the technical problem is:
A kind of Compositional type polycarboxylate water-reducer, including 8-20 parts of polycarboxylate water-reducer, 3-7 parts of methacrylate, tertiary carbonic ester
1-3 parts, 0.2-0.5 parts of N- acyl group sarcosine, 2-6 parts of hydroxypropyl starch ether, 2-3 parts of glycerol, neopelex 2-4
Part, 20-28 parts of water；The polycarboxylate water-reducer is by isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxy
Vinethene, methyl allyl polyoxyethylene ether, halogenated aliphatic acid, sucrose ester, Sodium Allyl Sulfonate, sodium peroxydisulfate, maleic anhydride,
Tartaric acid, cinnamic acid, sodium hydroxide, thioglycolic acid, triethanolamine and thiocarbamide composition.
Preferably, 8 parts of polycarboxylate water-reducer, 3 parts of methacrylate, 1 part of tertiary carbonic ester, 0 .2 of N- acyl group sarcosine
Part, 2 parts of hydroxypropyl starch ether, 2 parts of glycerol, 2 parts of neopelex, 20 parts of water.
Preferably, the polycarboxylate water-reducer is by 45-60 parts of isobutene alcohol polyoxyethylene ether, prenol polyethylene
30-42 parts of ether, 35-41 parts of alkyl phenol polyoxyethylene ether, 28-35 parts of methyl allyl polyoxyethylene ether, halogenated aliphatic acid
24-38 parts, 15-22 parts of sucrose ester, 1-3 parts of Sodium Allyl Sulfonate, 8-18 parts of sodium peroxydisulfate, 8-12 parts of maleic anhydride, wine
4-6 parts of stone acid, 7-11 parts of cinnamic acid, 8-19 parts of sodium hydroxide, 3-5 parts of thioglycolic acid, 9-23 parts of triethanolamine and sulphur
2-5 parts of urea compositions.
The present invention also provides a kind of preparation method for preparing polycarboxylate water-reducer in above-mentioned Compositional type polycarboxylate water-reducer, packets
Include following steps:
1) 45-60 parts of isobutene alcohol polyoxyethylene ether, 30-42 parts of prenol polyvinylether, alkyl phenol polyoxyethylene ether are taken
35-41 parts, 85-110 parts of feeding blenders of 28-35 parts of methyl allyl polyoxyethylene ether and purified water be stirred mixing,
Mixing time 12-20min obtains the first mixed solution, spare；
2) 15-22 parts of sucrose ester plus purified water 30-60 parts are taken to be mixedly configured into the second mixed solution, it is spare；
3) 24-38 parts of halogenated aliphatic acid, 1-3 parts of Sodium Allyl Sulfonate, 8-18 parts of sodium peroxydisulfate, maleic anhydride 8-12 are taken
Mixing is stirred in part, 4-6 parts of tartaric acid, 7-11 parts of cinnamic acid and 20-35 parts of feeding blenders of purified water, when stirring
Between 15min, obtain third mixed solution, it is spare；
4) the first mixed solution that step 1) obtains is sent into reaction kettle and 3-5 parts of thioglycolic acid, triethanolamine is added
9-23 parts and thiocarbamide 2-5 parts obtain the 4th mixed solution, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and the second mixed solution is dripped in 10-15min
It infuses in reaction kettle and is reacted with the 4th mixed solution, and keep the temperature 1-2h, then Temperature fall；It is dropped to reactor temperature
When to 40-50 DEG C, into reaction kettle, instillation third mixed solution carries out polymerization reaction, constant temperature pressure maintaining 2 hours after instillation,
Semi-finished product diminishing agent solution is obtained, it is spare；
6) sodium hydroxide 8-19 parts is added into the semi-finished product diminishing agent solution obtained by step 5), and stirs evenly, adjusts
PH value is 6-6.5, and the sustained-release polycarboxylic water reducer of finished product can be obtained.
Compared with prior art, the invention has the following advantages:
Using isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxyethylene ether, methacrylic polyoxy second
Alkene ether and purified water carry out mixing and form stable comb shape molecule knot under the uniform stirring that blender carries out 15-20min
Structure, can be adsorbed on cement granules makes cement granules display electrical property, mutual due to band identical charges between cement granules
Repel and disperse, and discharge the excessive moisture between cement granules, and generates water-reduction；And it is equipped with tartaric acid, cinnamic acid and horse
Carry out solution made of acid anhydrides isoreactivity monomer and sucrose ester, halogenated aliphatic acid, Sodium Allyl Sulfonate, sodium peroxydisulfate and pure water,
It is sent into reaction kettle and polymerization reaction is carried out with 40-95 DEG C of temperature, and by the mixing speed of reaction kettle 150-300r/min, from
And activated monomer and ether can be made, which preferably to carry out copolyreaction, to be made and grafts in it on side shoot of main chain, so that polycarboxylic acids point
The steric hindrance of son is larger, and the dispersion for the comb structure cement flexed outward for supporting branch provides sufficient space row
Column effect forms solid netted structure by the attraction of the various groups of branch, to prevent concrete disintegration, because from making to mix
The slump loss for coagulating soil is small, and higher water-reducing rate and adaptability can be kept under different concrete proportionings.
Specific embodiment
The present invention is described more detail below, illustrative examples of the invention and explanation are used to explain the present invention herein,
But it is not as a limitation of the invention.
Embodiment one
A kind of Compositional type polycarboxylate water-reducer includes 8 parts of polycarboxylate water-reducer, and 3 parts of methacrylate, 1 part of tertiary carbonic ester, N-
0.2 part of acyl group sarcosine, 2 parts of hydroxypropyl starch ether, 2 parts of glycerol, 2 parts of neopelex, 20 parts of water；The polycarboxylic acids
Water-reducing agent is by isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxyethylene ether, methacrylic polyoxy second
Alkene ether, halogenated aliphatic acid, sucrose ester, Sodium Allyl Sulfonate, sodium peroxydisulfate, maleic anhydride, tartaric acid, cinnamic acid, sodium hydroxide,
Thioglycolic acid, triethanolamine and thiocarbamide composition.
The polycarboxylate water-reducer is by 45 parts of isobutene alcohol polyoxyethylene ether, 30 parts of prenol polyvinylether, alkyl phenol
35 parts of polyoxyethylene ether, 28 parts of methyl allyl polyoxyethylene ether, 24 parts of halogenated aliphatic acid, 15 parts of sucrose ester, allyl sulphonic acid
1 part of sodium, 8 parts of sodium peroxydisulfate, 8 parts of maleic anhydride, 4 parts of tartaric acid, 7 parts of cinnamic acid, 8 parts of sodium hydroxide, 3 parts of thioglycolic acid,
9 parts and 2 parts of thiocarbamide compositions of triethanolamine.
When preparing polycarboxylate water-reducer in the Compositional type polycarboxylate water-reducer, 1) take isobutene alcohol polyoxyethylene ether 45
Part, 30 parts of prenol polyvinylether, 35 parts of alkyl phenol polyoxyethylene ether, 28 parts of methyl allyl polyoxyethylene ether and purified water
85 parts of feeding blenders are stirred mixing, and mixing time 12min obtains the first mixed solution, spare；
2) 15 parts of sucrose ester plus 30 parts of purified water are taken to be mixedly configured into the second mixed solution, it is spare；
3) 24 parts of halogenated aliphatic acid, 1 part of Sodium Allyl Sulfonate, 8 parts of sodium peroxydisulfate, 8 parts of maleic anhydride, 4 parts of tartaric acid, cortex cinnamomi are taken
It is stirred mixing in 7 parts of acid and 20 parts of feeding blenders of purified water, mixing time 15min obtains third mixed solution, standby
With；
4) by the first mixed solution that step 1) obtains be sent into reaction kettle and be added 3 parts of thioglycolic acid, 9 parts of triethanolamine and
2 parts of thiocarbamide obtain the 4th mixed solution, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and the second mixed solution is instilled into 10min
It is reacted in reaction kettle with the 4th mixed solution, and keeps the temperature 1h, then Temperature fall；40 DEG C are down to reactor temperature
When, into reaction kettle, instillation third mixed solution carries out polymerization reaction, and constant temperature pressure maintaining 2 hours, obtain semi-finished product after instillation
Diminishing agent solution, it is spare；
6) 8 parts of sodium hydroxide are added into the semi-finished product diminishing agent solution obtained by step 5), and stirs evenly, adjusts pH value
It is 6, the sustained-release polycarboxylic water reducer of finished product can be obtained.
Embodiment two
A kind of Compositional type polycarboxylate water-reducer includes 20 parts of polycarboxylate water-reducer, and 7 parts of methacrylate, 3 parts of tertiary carbonic ester, N-
0.5 part of acyl group sarcosine, 6 parts of hydroxypropyl starch ether, 3 parts of glycerol, 4 parts of neopelex, 28 parts of water；The polycarboxylic acids
Water-reducing agent is by isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxyethylene ether, methacrylic polyoxy second
Alkene ether, halogenated aliphatic acid, sucrose ester, Sodium Allyl Sulfonate, sodium peroxydisulfate, maleic anhydride, tartaric acid, cinnamic acid, sodium hydroxide,
Thioglycolic acid, triethanolamine and thiocarbamide composition.
The polycarboxylate water-reducer is by 60 parts of isobutene alcohol polyoxyethylene ether, 42 parts of prenol polyvinylether, alkyl phenol
41 parts of polyoxyethylene ether, 35 parts of methyl allyl polyoxyethylene ether, 38 parts of halogenated aliphatic acid, 22 parts of sucrose ester, allyl sulphonic acid
3 parts of sodium, 18 parts of sodium peroxydisulfate, 12 parts of maleic anhydride, 6 parts of tartaric acid, 11 parts of cinnamic acid, 19 parts of sodium hydroxide, thioglycolic acid 5
Part, 23 parts of triethanolamine and 5 parts of thiocarbamide compositions.
When preparing polycarboxylate water-reducer in the Compositional type polycarboxylate water-reducer, 1) take isobutene alcohol polyoxyethylene ether 60
Part, 42 parts of prenol polyvinylether, 41 parts of alkyl phenol polyoxyethylene ether, 35 parts of methyl allyl polyoxyethylene ether and purified water
110 parts of feeding blenders are stirred mixing, and mixing time 20min obtains the first mixed solution, spare；
2) 22 parts of sucrose ester plus 60 parts of purified water are taken to be mixedly configured into the second mixed solution, it is spare；
3) 38 parts of halogenated aliphatic acid, 3 parts of Sodium Allyl Sulfonate, 18 parts of sodium peroxydisulfate, 12 parts of maleic anhydride, 6 parts of tartaric acid, meat are taken
It is stirred mixing in 11 parts of cinnamic acid and 35 parts of feeding blenders of purified water, mixing time 15min obtains third mixed solution,
It is spare；
4) the first mixed solution that step 1) obtains is sent into reaction kettle and 5 parts of thioglycolic acid, 23 parts of triethanolamine is added
The 4th mixed solution is obtained with 5 parts of thiocarbamide, it is spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and the second mixed solution is instilled into 15min
It is reacted in reaction kettle with the 4th mixed solution, and keeps the temperature 2h, then Temperature fall；50 DEG C are down to reactor temperature
When, into reaction kettle, instillation third mixed solution carries out polymerization reaction, and constant temperature pressure maintaining 2 hours, obtain semi-finished product after instillation
Diminishing agent solution, it is spare；
6) 19 parts of sodium hydroxide are added into the semi-finished product diminishing agent solution obtained by step 5), and stirs evenly, adjusts PH
Value is 6.5, and the sustained-release polycarboxylic water reducer of finished product can be obtained.
Embodiment three
A kind of Compositional type polycarboxylate water-reducer includes 10 parts of polycarboxylate water-reducer, and 5 parts of methacrylate, 3 parts of tertiary carbonic ester, N-
0.4 part of acyl group sarcosine, 4 parts of hydroxypropyl starch ether, 4 parts of glycerol, 4 parts of neopelex, 22 parts of water；The polycarboxylic acids
Water-reducing agent is by isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxyethylene ether, methacrylic polyoxy second
Alkene ether, halogenated aliphatic acid, sucrose ester, Sodium Allyl Sulfonate, sodium peroxydisulfate, maleic anhydride, tartaric acid, cinnamic acid, sodium hydroxide,
Thioglycolic acid, triethanolamine and thiocarbamide composition.
The polycarboxylate water-reducer is by 47 parts of isobutene alcohol polyoxyethylene ether, 32 parts of prenol polyvinylether, alkyl phenol
37 parts of polyoxyethylene ether, 30 parts of methyl allyl polyoxyethylene ether, 26 parts of halogenated aliphatic acid, 17 parts of sucrose ester, allyl sulphonic acid
3 parts of sodium, 10 parts of sodium peroxydisulfate, 10 parts of maleic anhydride, 6 parts of tartaric acid, 9 parts of cinnamic acid, 10 parts of sodium hydroxide, thioglycolic acid 5
Part, 11 parts of triethanolamine and 4 parts of thiocarbamide compositions.
When preparing polycarboxylate water-reducer in the Compositional type polycarboxylate water-reducer, 1) take isobutene alcohol polyoxyethylene ether 47
Part, 32 parts of prenol polyvinylether, 37 parts of alkyl phenol polyoxyethylene ether, 30 parts of methyl allyl polyoxyethylene ether and purified water
87 parts of feeding blenders are stirred mixing, and mixing time 14min obtains the first mixed solution, spare；
2) 17 parts of sucrose ester plus 32 parts of purified water are taken to be mixedly configured into the second mixed solution, it is spare；
3) 26 parts of halogenated aliphatic acid, 3 parts of Sodium Allyl Sulfonate, 10 parts of sodium peroxydisulfate, 10 parts of maleic anhydride, 6 parts of tartaric acid, meat are taken
It is stirred mixing in 9 parts of cinnamic acid and 22 parts of feeding blenders of purified water, mixing time 15min obtains third mixed solution, standby
With；
4) the first mixed solution that step 1) obtains is sent into reaction kettle and 5 parts of thioglycolic acid, 11 parts of triethanolamine is added
The 4th mixed solution is obtained with 4 parts of thiocarbamide, it is spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and the second mixed solution is instilled into 12min
It is reacted in reaction kettle with the 4th mixed solution, and keeps the temperature 2h, then Temperature fall；42 DEG C are down to reactor temperature
When, into reaction kettle, instillation third mixed solution carries out polymerization reaction, and constant temperature pressure maintaining 2 hours, obtain semi-finished product after instillation
Diminishing agent solution, it is spare；
6) 10 parts of sodium hydroxide are added into the semi-finished product diminishing agent solution obtained by step 5), and stirs evenly, adjusts PH
Value is 6, and the sustained-release polycarboxylic water reducer of finished product can be obtained.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above embodiments is only applicable to help to understand this
The principle of inventive embodiments；At the same time, for those skilled in the art, according to an embodiment of the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (4)
1. a kind of Compositional type polycarboxylate water-reducer, it is characterised in that:
Including 8-20 parts of polycarboxylate water-reducer, 3-7 parts of methacrylate, 1-3 parts of tertiary carbonic ester, N- acyl group sarcosine 0.2-
0.5 part, 2-6 parts of hydroxypropyl starch ether, 2-3 parts of glycerol, 2-4 parts of neopelex, 20-28 parts of water；The polycarboxylic acids
Water-reducing agent is by isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxyethylene ether, methacrylic polyoxy second
Alkene ether, halogenated aliphatic acid, sucrose ester, Sodium Allyl Sulfonate, sodium peroxydisulfate, maleic anhydride, tartaric acid, cinnamic acid, sodium hydroxide,
Thioglycolic acid, triethanolamine and thiocarbamide composition.
2. a kind of Compositional type polycarboxylate water-reducer according to claim 1, it is characterised in that:
8 parts of polycarboxylate water-reducer, 3 parts of methacrylate, 1 part of tertiary carbonic ester, 0.2 part of N- acyl group sarcosine, hydroxypropul starch
2 parts of ether, 2 parts of glycerol, 2 parts of neopelex, 20 parts of water.
3. a kind of Compositional type polycarboxylate water-reducer according to claim 2, it is characterised in that:
The polycarboxylate water-reducer is by 45-60 parts of isobutene alcohol polyoxyethylene ether, 30-42 parts of prenol polyvinylether, alkane
35-41 parts of base phenol polyethenoxy ether, 28-35 parts of methyl allyl polyoxyethylene ether, 24-38 parts of halogenated aliphatic acid, sucrose ester
15-22 parts, 1-3 parts of Sodium Allyl Sulfonate, 8-18 parts of sodium peroxydisulfate, 8-12 parts of maleic anhydride, 4-6 parts of tartaric acid, cortex cinnamomi
7-11 parts sour, 8-19 parts of sodium hydroxide, 3-5 parts of thioglycolic acid, 9-23 parts of triethanolamine and 2-5 parts of thiocarbamide compositions.
4. the preparation method of polycarboxylate water-reducer in a kind of Compositional type polycarboxylate water-reducer, it is characterised in that:
The following steps are included:
1) 45-60 parts of isobutene alcohol polyoxyethylene ether, 30-42 parts of prenol polyvinylether, alkyl phenol polyoxyethylene ether are taken
35-41 parts, 85-110 parts of feeding blenders of 28-35 parts of methyl allyl polyoxyethylene ether and purified water be stirred mixing,
Mixing time 12-20min obtains the first mixed solution, spare；
2) 15-22 parts of sucrose ester plus purified water 30-60 parts are taken to be mixedly configured into the second mixed solution, it is spare；
3) 24-38 parts of halogenated aliphatic acid, 1-3 parts of Sodium Allyl Sulfonate, 8-18 parts of sodium peroxydisulfate, maleic anhydride 8-12 are taken
Mixing is stirred in part, 4-6 parts of tartaric acid, 7-11 parts of cinnamic acid and 20-35 parts of feeding blenders of purified water, when stirring
Between 15min, obtain third mixed solution, it is spare；
4) the first mixed solution that step 1) obtains is sent into reaction kettle and 3-5 parts of thioglycolic acid, triethanolamine is added
9-23 parts and thiocarbamide 2-5 parts obtain the 4th mixed solution, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and the second mixed solution is dripped in 10-15min
It infuses in reaction kettle and is reacted with the 4th mixed solution, and keep the temperature 1-2h, then Temperature fall；It is dropped to reactor temperature
When to 40-50 DEG C, into reaction kettle, instillation third mixed solution carries out polymerization reaction, constant temperature pressure maintaining 2 hours after instillation,
Semi-finished product diminishing agent solution is obtained, it is spare；
6) sodium hydroxide 8-19 parts is added into the semi-finished product diminishing agent solution obtained by step 5), and stirs evenly, adjusts
PH value is 6-6.5, and the sustained-release polycarboxylic water reducer of finished product can be obtained.
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| CN110467390A (en) * | 2019-07-05 | 2019-11-19 | 台州市宇博建材科技有限公司 | A kind of concrete and preparation method with fine aggregate |
| CN110467390B (en) * | 2019-07-05 | 2021-10-22 | 浙江宇博新材料有限公司 | Concrete with fine aggregate |
| CN111689712A (en) * | 2020-06-09 | 2020-09-22 | 洛阳君江建材科技有限公司 | Polycarboxylate superplasticizer with low sensitivity to environmental temperature and preparation method thereof |
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