CN110003403A - A kind of anti-mud early-strength water-reducing agent and preparation method thereof - Google Patents
A kind of anti-mud early-strength water-reducing agent and preparation method thereof Download PDFInfo
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- CN110003403A CN110003403A CN201910330445.9A CN201910330445A CN110003403A CN 110003403 A CN110003403 A CN 110003403A CN 201910330445 A CN201910330445 A CN 201910330445A CN 110003403 A CN110003403 A CN 110003403A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2688—Copolymers containing at least three different monomers
- C04B24/2694—Copolymers containing at least three different monomers containing polyether side chains
-
- 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
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/40—Redox systems
-
- 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)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Structural Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of anti-mud early-strength water-reducing agents, anti- mud early-strength water-reducing agent includes the raw material of following composition by weight: 8-8.2 parts of bottom material, 0.9-1 parts of A material, 0.1-0.2 parts of C material, 0.56-0.64 parts of B material, 0.04-0.05 parts of catalyst and 0.12-0.13 parts of neutralizer, bottom material includes VOPG-2# polyethers slice, bottom water and 32% liquid alkaline, and VOPG-2# polyethers slice, bottom water, the proportion of 32% liquid alkaline are 4.55:5.40:0.05.In the present invention, the anti-mud early-strength water-reducing agent use is in the biggish concrete of some clay contents, compared to traditional water-reducing agent currently used in the market, its water-reducing rate and the enhancing of retentivity significant effect, improving has peptizaiton to cement granules, improves cement work, reduces unit consumption of water, improve the mobility of concrete mix, while the early strength of concrete can be remarkably reinforced in the anti-mud early-strength water-reducing agent.
Description
Technical field
The present invention relates to water-reducing agent technical fields more particularly to a kind of anti-mud early-strength water-reducing agent and preparation method thereof.
Background technique
Water-reducing agent is a kind of under conditions of maintaining concrete slump to be basically unchanged, and can be reduced the coagulation of mixing water amount
Native additive.Belong to anionic surfactant mostly, there is lignosulfonates, naphthalene sulphonate formaldehyde polymer etc..It is added mixed
There is peptizaiton to cement granules after solidifying soil mixture, its workability can be improved, reduce unit consumption of water, improve concrete mixing
The mobility of object；Or unit cement consumption is reduced, save cement.
Water-reducing agent currently used in the market is divided into lignin sulfonate, Ppolynuclear aromatic salt and water-soluble resin more
Sulfonates, but in the biggish concrete of clay content, water-reducing rate and retentivity effect are poor, while can not enhance coagulation
The early strength of soil.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of anti-mud early-strength diminishing proposed
Agent and preparation method thereof.
To achieve the goals above, present invention employs following technical solutions: a kind of anti-mud early-strength water-reducing agent, described anti-
Mud early-strength water-reducing agent includes the raw material of following composition by weight: 8-8.2 parts of bottom material, A expect 0.9-1 parts, 0.1-0.2 parts of C material, B material
0.56-0.64 parts, 0.04-0.05 parts of catalyst and 0.12-0.13 parts of neutralizer.
It is as above-mentioned technical proposal to further describe:
The bottom material includes VOPG-2# polyethers slice, bottom water and 32% liquid alkaline, and VOPG-2# polyethers slice, bottom water,
The proportion of 32% liquid alkaline is 4.55:5.40:0.05；
The VOPG-2# polyethers slice is six carbon unsaturated alcohol polyethers, is a kind of polyethers that double bond Copolymerization activity is high.
It is as above-mentioned technical proposal to further describe:
The A material is formed by water, cis-butenedioic anhydride and propylene acid-mixed, and the proportion of water, cis-butenedioic anhydride and acrylic acid is 0.75:0.03:
0.22；
The cis-butenedioic anhydride, also known as maleic anhydride are orthorhombic system colourless needles or flat crystal, there is intense stimulus gas
Taste, is dissolved in ethyl alcohol, ether and acetone, and the acrylic acid is the very fast vinyl monomer of polymerization speed and simplest unsaturation
Carboxylic acid, and acrylic acid is made of a vinyl and a carboxyl.
It is as above-mentioned technical proposal to further describe:
The C material is mixed by water and 80% mercaptopropionic acid, and water and 80% mercaptopropionic acid are mixed into 1:0.10.
It is as above-mentioned technical proposal to further describe:
The B material is mixed by water and reducing agent 602, and the proportion of water and reducing agent 602 is 1:0.05, the reduction
Agent 602 is sodium hypophosphite.
It is as above-mentioned technical proposal to further describe:
The catalyst mixes for reducing agent 601 and 35% hydrogen peroxide, and between reducing agent 601 and 35% hydrogen peroxide
Proportion be 1:0.78, the reducing agent 601 be azodiisobutyronitrile, the neutralizer be 32% liquid alkaline
A kind of preparation method of anti-mud early-strength water-reducing agent, comprising the following steps:
(1): configuration A material, B material and C material, the mixing for taking 730kg water, 37.5kg cis-butenedioic anhydride and 194kg acrylic acid to be added first
It is carried out in agitator tank and No.1 is mixed and A material is made；Then it takes 570kg water and 29.3kg reducing agent 602 to be added to No. two to mix
It closes and carries out being sufficiently mixed the obtained B material of stirring in agitator tank；It takes 154kg water and 15.4kg80% mercaptopropionic acid to be added to No. three again to mix
It closes and carries out being sufficiently stirred obtained C material in agitator tank, the A material, B material and C material of preparation are injected separately into three dropping tanks and are carried out
It is spare；
(2): 3700kgVOPG-2# polyethers slice, 4390lg bottom water and 38kg32% liquid alkaline are put into 10 by configuration bottom material
In vertical enamel still, stirring and dissolving is opened, the complete molten rear unlatching enamel still main circulation pump of materials is waited, opens heat exchanger cooling water, give bottom
Material cooling；
(3): A material and C material is added dropwise, when bottom material is cooled to 23 ± 3 DEG C, opens enamel still stirring, then 450Kg is added into kettle
A material and 79Kg C expect, with PH test paper observe material pH value, Testing index PH (5%) be 4~7；
(4): A material, B material and C material is added dropwise, then bottom material temperature is controlled 23 ± 3 DEG C, while A, B, C material is added dropwise, control A material
Flow velocity is 18.6Kg/min, control B stream speed is 13.6Kg/min, control C stream speed is 3.3Kg/min, control A material and C material
Drip off within 25~30 minutes, A material and C drop it is complete after, B material 375Kg is added altogether, 225 ± 10Kg of residue is preferable, and A drop is complete, B expect after
Continuation of insurance, which is held speed and is added dropwise to, to be dripped off, and B material control drips off preferably for 42~47 minutes；
(5): after adding from man-hole opening 26.9kg reducing agent 601 and 21kg is added in addition catalyst, A material, B material, C drop
35% hydrogen peroxide；
(6): addition neutralizer after B material adds, is added at one time the 32% liquid alkaline stirring of 122Kg neutralization 10 minutes, out
Material, is made anti-mud early-strength water-reducing agent.
Beneficial effect
The present invention provides a kind of anti-mud early-strength water-reducing agents and preparation method thereof.Have it is following the utility model has the advantages that
The anti-mud early-strength water-reducing agent use is in the biggish concrete of some clay contents, compared to using currently on the market
Traditional water-reducing agent, water-reducing rate and the enhancing of retentivity significant effect, improving has a peptizaiton to cement granules, improves cement
Workability reduces unit consumption of water, improves the mobility of concrete mix, while the anti-mud early-strength water-reducing agent can be obvious
Enhance the early strength of concrete.
Detailed description of the invention
Fig. 1 is a kind of preparation method flow diagram of anti-mud early-strength water-reducing agent proposed by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1, a kind of anti-mud early-strength water-reducing agent, anti-mud early-strength water-reducing agent includes the raw material of following composition by weight:
8-8.2 parts of bottom material, 0.9-1 parts of A material, 0.1-0.2 parts of C material, 0.56-0.64 parts of B material, 0.04-0.05 parts of catalyst and neutralizer
0.12-0.13 parts.
Bottom material includes VOPG-2# polyethers slice, bottom water and 32% liquid alkaline, and VOPG-2# polyethers slice, bottom water, 32% liquid
The proportion of alkali is 4.55:5.40:0.05, and it is a kind of double bond Copolymerization activity that VOPG-2# polyethers slice, which is six carbon unsaturated alcohol polyethers,
High polyethers.
VOPG-2# polyethers is sliced double bond Copolymerization activity height, is the oxygen atom tool since the carbon atom of double bond is connected with oxygen atom
There is sucting electronic effect, double bond electron cloud is made to shift, under this mechanism for being known as " inhaling electric inductive effect ", double bond
Reactivity ratio is general, and straight chain enol is much greater, different double bond activity mechanisms, so that six carbene alcohol double bond reactivities.
A material is formed by water, cis-butenedioic anhydride and propylene acid-mixed, and the proportion of water, cis-butenedioic anhydride and acrylic acid is 0.75:0.03:0.22, suitable
Acid anhydride, also known as maleic anhydride are orthorhombic system colourless needles or flat crystal, have intense stimulus smell, be dissolved in ethyl alcohol, ether
And acetone, acrylic acid is the very fast vinyl monomer of polymerization speed and simplest unsaturated carboxylic acid, and acrylic acid is by one
Vinyl and a carboxyl composition.
C material is mixed by water and 80% mercaptopropionic acid, and water and 80% mercaptopropionic acid are mixed into 1:0.10.
B material is mixed by water and reducing agent 602, and the proportion of water and reducing agent 602 is 1:0.05, and reducing agent 602 is
Sodium hypophosphite.
Catalyst mixes for reducing agent 601 and 35% hydrogen peroxide, and matching between reducing agent 601 and 35% hydrogen peroxide
Than for 1:0.78, reducing agent 601 is azodiisobutyronitrile, neutralizer is 32% liquid alkaline.
A kind of preparation method of anti-mud early-strength water-reducing agent, comprising the following steps:
(1): configuration A material, B material and C material, the mixing for taking 730kg water, 37.5kg cis-butenedioic anhydride and 194kg acrylic acid to be added first
It is carried out in agitator tank and No.1 is mixed and A material is made；Then it takes 570kg water and 29.3kg reducing agent 602 to be added to No. two to mix
It closes and carries out being sufficiently mixed the obtained B material of stirring in agitator tank；It takes 154kg water and 15.4kg80% mercaptopropionic acid to be added to No. three again to mix
It closes and carries out being sufficiently stirred obtained C material in agitator tank, the A material, B material and C material of preparation are injected separately into three dropping tanks and are carried out
It is spare；
(2): 3700kgVOPG-2# polyethers slice, 4390lg bottom water and 38kg32% liquid alkaline are put into 10 by configuration bottom material
In vertical enamel still, stirring and dissolving is opened, the complete molten rear unlatching enamel still main circulation pump of materials is waited, opens heat exchanger cooling water, give bottom
Material cooling；
(3): A material and C material is added dropwise, when bottom material is cooled to 23 ± 3 DEG C, opens enamel still stirring, then 450Kg is added into kettle
A material and 79Kg C expect, with PH test paper observe material pH value, Testing index PH (5%) be 4~7；
(4): A material, B material and C material is added dropwise, then bottom material temperature is controlled 23 ± 3 DEG C, while A, B, C material is added dropwise, control A material
Flow velocity is 18.6Kg/min, control B stream speed is 13.6Kg/min, control C stream speed is 3.3Kg/min, control A material and C material
Drip off within 25~30 minutes, A material and C drop it is complete after, B material 375Kg is added altogether, 225 ± 10Kg of residue is preferable, and A drop is complete, B expect after
Continuation of insurance, which is held speed and is added dropwise to, to be dripped off, and B material control drips off preferably for 42~47 minutes；
(5): after adding from man-hole opening 26.9kg reducing agent 601 and 21kg is added in addition catalyst, A material, B material, C drop
35% hydrogen peroxide；
(6): addition neutralizer after B material adds, is added at one time the 32% liquid alkaline stirring of 122Kg neutralization 10 minutes, out
Material, is made anti-mud early-strength water-reducing agent.
35% 2 months or so hydrogen peroxide shelf-life, storage temperature is higher, and the shelf-life accordingly shortens, and storage is isolated, such as lets out
It drains on organic matter (such as cotton, grease), can make organic matter that oxidation and spontaneous combustion occur；Acid and alkali-resistance gloves are worn when operation, contact skin
It is rinsed immediately with a large amount of water afterwards.
Acrylic acid will strictly be protected from light and be sealed, in long-time exposure air, heating or direct sunlight can polymerize, lead
Cause cannot use, and the shelf-life 2 months, high-temperature storage can shorten the shelf-life, and material temperature is conveniently 35~40 after winter solidification
It is slowly melted in DEG C hot water, repeated multiple times material is easy to happen rotten.
80% mercaptopropionic acid and 602 shelf-life of reducing agent are 6 months, and 601 shelf-life of reducing agent is 3 months, and when use answers
Otherwise control will cause quality fluctuation within the shelf-life, bucket bottom might have a small amount of sediment, and when use will shake up, and place yin
The cool place of being protected from light is sealed, will be far from oxidant when storage.
80% mercaptopropionic acid, reducing agent 601 are toxic, there is skin compared with strong corrosive, and when operation wears acid and alkali-resistance gloves, contact
It is rinsed immediately with a large amount of water after skin.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Specific features described in conjunction with this embodiment or example, structure, material live feature and are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of anti-mud early-strength water-reducing agent, it is characterised in that, the anti-mud early-strength water-reducing agent include following composition by weight
Raw material: 8-8.2 parts of bottom material, A expect 0.9-1 part, C expect 0.1-0.2 parts, B material 0.56-0.64 parts, 0.04-0.05 parts of catalyst and in
With 0.12-0.13 parts of agent.
2. a kind of anti-mud early-strength water-reducing agent according to claim 1, which is characterized in that the bottom material includes VOPG-2#
Polyethers slice, bottom water and 32% liquid alkaline, and VOPG-2# polyethers slice, bottom water, the proportion of 32% liquid alkaline are 4.55:5.40:
0.05；
The VOPG-2# polyethers slice is six carbon unsaturated alcohol polyethers, is a kind of polyethers that double bond Copolymerization activity is high.
3. a kind of anti-mud early-strength water-reducing agent according to claim 1, which is characterized in that the A material is by water, cis-butenedioic anhydride and third
Olefin(e) acid is mixed to be formed, and the proportion of water, cis-butenedioic anhydride and acrylic acid is 0.75:0.03:0.22；
The cis-butenedioic anhydride, also known as maleic anhydride are orthorhombic system colourless needles or flat crystal, there is intense stimulus smell, molten
In ethyl alcohol, ether and acetone, the acrylic acid is the very fast vinyl monomer of polymerization speed and simplest unsaturated carboxylic acid,
And acrylic acid is made of a vinyl and a carboxyl.
4. a kind of anti-mud early-strength water-reducing agent according to claim 1, which is characterized in that the C material is by water and 80% mercapto
Base propionic acid mixes, and water and 80% mercaptopropionic acid are mixed into 1:0.10.
5. a kind of anti-mud early-strength water-reducing agent according to claim 1, which is characterized in that the B material is by water and reducing agent
602 mix, and the proportion of water and reducing agent 602 is 1:0.05, and the reducing agent 602 is sodium hypophosphite.
6. a kind of anti-mud early-strength water-reducing agent according to claim 1, which is characterized in that the catalyst is reducing agent
601 and 35% hydrogen peroxide mix, and the proportion between reducing agent 601 and 35% hydrogen peroxide be 1:0.78, the reducing agent
601 be azodiisobutyronitrile；
The neutralizer is 32% liquid alkaline.
7. a kind of preparation method of anti-mud early-strength water-reducing agent, which comprises the following steps:
(1): configuration A material, B material and C material, the mixing for taking 730kg water, 37.5kg cis-butenedioic anhydride and 194kg acrylic acid to be added first
It is carried out in tank and No.1 is mixed and A material is made；Then it takes 570kg water and 29.3kg reducing agent 602 to be added to No. two mixing to stir
It mixes and carries out being sufficiently mixed the obtained B material of stirring in tank；It takes 154kg water and 15.4kg80% mercaptopropionic acid to be added to No. three mixing again to stir
Mix and carry out being sufficiently stirred obtained C material in tank, the A material, B material and C material of preparation are injected separately into three dropping tanks carry out it is spare；
(2): 3700kgVOPG-2# polyethers slice, 4390lg bottom water and 38kg32% liquid alkaline are put into 10 and vertical warded off by configuration bottom material
In porcelain kettle, stirring and dissolving is opened, the complete molten rear unlatching enamel still main circulation pump of materials is waited, opens heat exchanger cooling water, dropped to bottom material
Temperature；
(3): A material and C material is added dropwise, when bottom material is cooled to 23 ± 3 DEG C, opens enamel still stirring, then the A of 450Kg is added into kettle
The C of material and 79Kg expect, observe material pH value with PH test paper, Testing index PH (5%) is 4~7；
(4): A material, B material and C material is added dropwise, then bottom material temperature is controlled 23 ± 3 DEG C, while A, B, C material is added dropwise, control A stream speed
For 18.6Kg/min, control B stream speed be 13.6Kg/min, control C stream speed be 3.3Kg/min, control A material and C material 25~
It drips off within 30 minutes, after A material and C drop are complete, 375Kg is added in B material altogether, and 225 ± 10Kg of residue is preferable, and A drop is complete, and B expects after continuation of insurance
It holds speed and is added dropwise to and drip off, B material control drips off preferably for 42~47 minutes；
(5): addition catalyst, A material, B material, C drop from man-hole opening are added 35% pair of 26.9kg reducing agent 601 and 21kg after adding
Oxygen water；
(6): addition neutralizer, after B material adds, the 32% liquid alkaline stirring for being added at one time 122Kg is neutralized 10 minutes, is discharged, system
Obtain anti-mud early-strength water-reducing agent.
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| CN201910330445.9A CN110003403A (en) | 2019-04-23 | 2019-04-23 | A kind of anti-mud early-strength water-reducing agent and preparation method thereof |
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| CN108192040A (en) * | 2017-12-28 | 2018-06-22 | 科之杰新材料集团有限公司 | A kind of preparation method of low entraining type solid polycarboxylic acid water reducing agent |
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| CN102060464A (en) * | 2009-11-17 | 2011-05-18 | 山东宏艺科技股份有限公司 | Polycarboxylate water reducing agent by using water as solvent and preparation method thereof |
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| CN107814885A (en) * | 2017-11-01 | 2018-03-20 | 武汉新绿博恩科技有限公司 | One kind resistance chamotte mould polycarboxylate water-reducer, its preparation method and production equipment special |
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