CN106904867B - Concrete synergist containing chitosan sodium sulfonate and preparation method thereof - Google Patents
Concrete synergist containing chitosan sodium sulfonate and preparation method thereof Download PDFInfo
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- CN106904867B CN106904867B CN201710260451.2A CN201710260451A CN106904867B CN 106904867 B CN106904867 B CN 106904867B CN 201710260451 A CN201710260451 A CN 201710260451A CN 106904867 B CN106904867 B CN 106904867B
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The invention discloses a concrete synergist containing chitosan sodium sulfonate and a preparation method thereof, belonging to the field of concrete additives, wherein the synergist comprises chitosan sodium sulfonate, inorganic base, an epoxy compound, (3-glycidoxypropyl) allyloxy dimethoxysilane, an initiator and water; the initiator is one or a mixture of more than two of sodium persulfate, potassium persulfate or ammonium persulfate, and the method for preparing the concrete synergist containing the chitosan sodium sulfonate comprises the steps of adding weighed chitosan sodium sulfonate, inorganic alkali and water into a reaction kettle; then adding the epoxy compound part and (3-glycidoxypropyl) allyloxydimethoxysilane into the reaction kettle; and then adding an initiator to obtain the concrete reinforcing agent. The synergist stimulates the dispersity of cement particles, stimulates the effect of cement, enables hydration reaction to be more sufficient, improves the comprehensive performance of concrete, simultaneously improves the strength grade of the concrete, saves about 10 percent of the cement consumption and reduces the production cost of the concrete.
Description
Technical field
The present invention relates to class concrete additive field, in particular to a kind of Concrete synergists of chitosan-containing sodium sulfonate
And preparation method thereof.
Background technique
Concrete because have the advantages that it is a series of, as superior plasticity, good water-resistance, excellent durability with
And great competitiveness economy and become current whole world dosage maximum and the most wide material of use scope.In decades from now on
And foreseeable future, it still will be one of most important structural timber, particularly with the present age for being in the transitional period
For China, industrialization accelerates propulsion, urbanization in the ascendant, and the scale of capital construction will be sent out with the speed to surpass the world average level
Exhibition.Ready-mixed concrete is concrete production form main so far, wherein 70% or more ready-mixed concrete strength grade
For C25~C35.The improvement of the concrete performance of this strength grade and the progress of construction technology, to entire Concrete Industry
Development has extensively and far-reaching influence.Concrete admixture based on water-reducing agent has become the important component of concrete,
The features such as with reducing cement consumption, improving fresh concrete workability.Hydrated cementitious degree research data is shown both at home and abroad
There is the cement there are about 20%~30% to be not engaged in hydration reaction in concrete under conventional environment, only serves fine filling of gathering materials
Effect, cannot effectively play strength of cement, cause the significant wastage of resource.On the other hand, since different water-reducing agents is to water
The Influencing Mechanism of mud absorption etc. is different, after adding to a certain extent, is difficult to work again to concrete, economy and applies
Work is difficult to be protected.New concrete admixture how to be developed to solve the above problems, cement more than needed is saved
While can ensure the basic performance and intensity of concrete again, be of great practical significance to Concrete Enterprises.
The present invention provides a kind of Concrete synergists of chitosan-containing sodium sulfonate.This Concrete synergist is a kind of novel
Concrete admixture, for not only can be reduced cement consumption for Medium and low intensity grade concrete, but also can guarantee its work
Property, intensity and durability, there is a wide range of application prospect.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of concrete synergy of chitosan-containing sodium sulfonate
Agent, which is a kind of novel concrete admixture, for both can be reduced for Medium and low intensity grade concrete
Cement consumption, while can guarantee its workability and intensity again, there is a wide range of application prospect.
It is a still further object of the present invention to provide a kind of preparation methods of the Concrete synergist of chitosan-containing sodium sulfonate.
The present invention is achieved through the following technical solutions: a kind of Concrete synergist of chitosan-containing sodium sulfonate, by weight
Meter, the synergist are made of following raw materials, and chitosan sodium sulfonate is 15~24 parts, inorganic base is 6~14 parts, epoxide is
10~20 parts, (3- glycidoxypropyl group) allyloxy dimethoxysilane be 5~15 parts, initiator be 0.05~1 part with
And water is 40~55 parts；The initiator is the mixed of one or more of sodium peroxydisulfate, potassium peroxydisulfate or ammonium persulfate
Close object.
In order to which method of the invention is better achieved, further, by weight, the synergist is by following raw material groups
At chitosan sodium sulfonate is 18 parts, inorganic base is 8 parts, epoxide is 17 parts, (3- glycidoxypropyl group) allyloxy
Dimethoxysilane is 7 parts, initiator is 0.3 part and water is 50.7 parts.
In order to which method of the invention is better achieved, further, the inorganic base is in sodium hydroxide or potassium hydroxide
One or two kinds of mixtures.
In order to which method of the invention is better achieved, further, the epoxide be allyl glycidyl ester,
Allyl polyethenoxy epoxy group ether, allyl polyethenoxy polyoxypropylene epoxy group ether, glycidyl acrylate, methyl-prop
Olefin(e) acid ethylene oxidic ester one of which or two or more mixtures.
The method for preparing the Concrete synergist of chitosan-containing sodium sulfonate, comprising the following steps:
(a1) by weight, 15~24 parts of load weighted chitosan sodium sulfonate, inorganic base 6~14 are added into reaction kettle
Part and water, reaction temperature are maintained at 90~105 DEG C, react 1~5 hour, obtain mixture A；
(a2) by weight, then toward 10~20 parts of epoxide and (3-rings are added in reaction kettle in mixture A
Oxygen propoxypropyl) 5~15 parts of allyloxy dimethoxysilane, obtain mixture B；
(a3) initiator solution that mass percent concentration is 1~10%, the initiator are then added into mixture B
Solution is dissolved in water by 0.05~1 part of initiator in parts by weight and is formulated；The process that initiator solution is added keeps temperature
It is 105~120 DEG C；After the completion of initiator solution is added, temperature is continually maintained between 105~120 DEG C, is reacted 2~6 hours,
Up to the concrete intensifier；
By weight, prepare the total water consumption of the synergist be 40~55 parts, including chitosan sodium sulfonate, inorganic base and
The reaction system water phase water consumption and preparation initiator water consumption of water.
In order to which method of the invention is better achieved, further, the Concrete synergist of chitosan-containing sodium sulfonate is prepared
Method, comprising the following steps:
(b1) by weight, 18 parts of load weighted chitosan sodium sulfonate, 8 parts of inorganic base and water are added into reaction kettle,
Reaction temperature is maintained at 101 DEG C, reacts 3.5 hours, obtains mixture A；
(b2) by weight, then toward 17 parts of epoxide and (3-epoxies third are added in reaction kettle in mixture A
Oxygroup propyl) 7 parts of allyloxy dimethoxysilane, obtain mixture B；
(b3) initiator solution that mass percent concentration is 6%, the initiator solution are then added into mixture B
Water is dissolved in by 0.3 part of initiator in parts by weight to be formulated；It is 112 DEG C that the process that initiator solution is added, which keeps temperature,；
After the completion of initiator solution is added, temperature is continually maintained in 112 DEG C, reacts 4.5 hours to get the concrete intensifier；
By weight, preparing the total water consumption of the synergist is 50.7 parts, including chitosan sodium sulfonate, inorganic base and water
Reaction system water phase water consumption and prepare initiator water consumption.
In order to which method of the invention is better achieved, further, the Concrete synergist of chitosan-containing sodium sulfonate is prepared
Method, in the step (b3), the adding manner of the initiator solution be 2.5~4 small the time for being added dropwise, and being added dropwise
When.
In order to which method of the invention is better achieved, further, the Concrete synergist of chitosan-containing sodium sulfonate is prepared
Method, and be added dropwise time be 3.5 hours.
In order to which method of the invention is better achieved, further, the Concrete synergist of chitosan-containing sodium sulfonate is prepared
Method, the inorganic base is the mixture of one or both of sodium hydroxide or potassium hydroxide.
In order to which method of the invention is better achieved, further, the Concrete synergist of chitosan-containing sodium sulfonate is prepared
Method, the epoxide be allyl glycidyl ester, allyl polyethenoxy epoxy group ether, allyl polyethenoxy
Polyoxypropylene epoxy group ether, glycidyl acrylate, glycidyl methacrylate are one of or two or more
Mixture.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
One, Concrete synergist of the invention passes through the dispersion degree of efficient excited cement particle, excites water to the maximum extent
The effect of mud keeps hydration reaction more abundant, so as to improve the comprehensive performance of concrete；
Two, Concrete synergist of the invention can be improved the strength grade of concrete, and save in concrete 10%
The cement consumption of left and right reduces production cost；
Three, Concrete synergist of the invention and other concrete admixture compatibilities are good；
Four, Concrete synergist of the invention is using chitosan sodium sulfonate as raw material, to effective synthesis of chitosan sodium sulfonate
Using providing a kind of novel approach；
Five, Concrete synergist simple production process of the invention, mild condition, production process charging, condition are all easy
Control, entire technical process are discharged without " three wastes ", are a kind of environmental type, pollution-free cleanly production technique.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto,
Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, various replace is made
It changes and changes, should all be included within the scope of the invention.
The present invention is further elaborated on reference to embodiments.
The Concrete synergist of a kind of chitosan-containing sodium sulfonate of the invention, by weight, by following raw material components
It is made:
Wherein inorganic base is the mixture of one or more of sodium hydroxide, potassium hydroxide；
Epoxide is allyl glycidyl ester, allyl polyethenoxy epoxy group ether, allyl polyethenoxy are poly-
Oxypropylene epoxy group ether, glycidyl acrylate, glycidyl methacrylate one of which or several mixtures；
Initiator is the mixture of one or more of sodium peroxydisulfate, potassium peroxydisulfate and ammonium persulfate.
Total water consumption be the chitosan sodium sulfonate, inorganic base and the water that use early period reaction system water phase water consumption and
Prepare the summation of initiator water consumption.
A kind of preparation method of the Concrete synergist of chitosan-containing sodium sulfonate of the present invention, is achieved by the steps of:
(a1) past that 15~24 parts of load weighted chitosan sodium sulfonate, inorganic base 6~14 are added by weight, in reaction kettle
Part and water, be then turned on stirring, stirring while, begins to warm up heating, and temperature is maintained at 90~105 DEG C, reaction 1~5 hour,
Obtain mixture A；
(a2) toward 10~20 parts of epoxide and (3-glycidoxypropyl group) alkene is added in reaction kettle in mixture A
5~15 parts of propoxyl group dimethoxysilane, obtain mixture B；
(a3) initiator solution that mass percent concentration is 1~10%, the initiator are then added dropwise into mixture B
Solution is dissolved in water by 0.05~1 part of initiator by weight and is formulated；The initiator solution time for adding be 2.5~
4 hours, temperature was 105~120 DEG C when dropwise addition；After initiator solution drips, temperature is maintained between 105~120 DEG C, is continued
Reaction 2~6 hours, cooling discharge is to get the concrete intensifier；
By weight, preparing the total water consumption of the synergist is 50.7 parts, including chitosan sodium sulfonate, inorganic base and water
Reaction system water phase water consumption and prepare initiator water consumption.
With specific embodiment, the present invention is described in detail below, but the present invention is not limited only to this.
Embodiment 1
Chitosan derivative species Concrete synergist in the present embodiment is made of following raw material components by weight:
The specific preparation method of above-mentioned synergist, is achieved by the steps of:
(c1) stirring is opened after 16 parts of chitosan sodium sulfonates, 7 parts of sodium hydroxides and 48 parts of water are added into reaction kettle, and is opened
Beginning heat temperature raising, until temperature is reacted 2 hours after reaching 95 DEG C；
(c2) 18 parts of allyl glycidyl esters and 6 parts of (3-glycidoxypropyl group) allyl oxygen are added into reaction kettle
Base dimethoxysilane starts that the sodium peroxydisulfate solution that mass percent concentration is 2%, this sodium peroxydisulfate solution is added dropwise after adding
It is formulated by 0.1 part of sodium peroxydisulfate and 4.9 parts of water；Time for adding control temperature at 3 hours, dropwise addition is controlled at 108 DEG C；Drop
Temperature is kept after adding, and the reaction was continued 3 hours, and cooling discharge is to get the concrete intensifier.
Embodiment 2
The Concrete synergist of a kind of chitosan-containing sodium sulfonate of the invention, by weight, by following raw material components
It is made:
A kind of preparation method of the Concrete synergist of chitosan-containing sodium sulfonate of the present invention, is achieved by the steps of:
(d1) stirring is opened after 17 parts of chitosan sodium sulfonates, 8 parts of sodium hydroxides and 41 parts of water are added into reaction kettle, and is opened
Beginning heat temperature raising, until temperature is reacted 2.5 hours after reaching 98 DEG C；
(d2) 17 parts of allyl polyethenoxy epoxy group ethers and 7 parts (3-glycidoxypropyl group) are added into reaction kettle
Allyloxy dimethoxysilane starts that the sodium peroxydisulfate solution that mass percent concentration is 3%, this persulfuric acid is added dropwise after adding
Sodium solution is formulated by 0.3 part of sodium peroxydisulfate and 9.7 parts of water；Time for adding control temperature control at 3 hours, dropwise addition exists
110℃；Temperature is kept after dripping, and the reaction was continued 4 hours, and cooling discharge is to get the concrete intensifier.
Embodiment 3
The Concrete synergist of a kind of chitosan-containing sodium sulfonate of the invention, by weight, by following raw material components
It is made:
A kind of preparation method of the Concrete synergist of chitosan-containing sodium sulfonate of the present invention, is achieved by the steps of:
(e1) stirring is opened after 18 parts of chitosan sodium sulfonates, 8 parts of sodium hydroxides and 46 parts of water are added into reaction kettle, and is opened
Beginning heat temperature raising, until temperature is reacted 3.5 hours after reaching 101 DEG C；
(e2) 17 parts of allyl polyethenoxy polyoxypropylene epoxy group ethers and 7 parts of (3-third oxygen of epoxy are added into reaction kettle
Base propyl) allyloxy dimethoxysilane, start that the potassium persulfate solution that mass percent concentration is 6% is added dropwise after adding,
This potassium persulfate solution is formulated by 0.3 part of potassium peroxydisulfate and 4.7 parts of water；Time for adding control temperature at 3.5 hours, dropwise addition
Degree control is at 112 DEG C；Temperature is kept after dripping, and the reaction was continued 4.5 hours, and cooling discharge is to get the concrete intensifier.
Embodiment 4
The Concrete synergist of a kind of chitosan-containing sodium sulfonate of the invention, by weight, by following raw material components
It is made:
A kind of preparation method of the Concrete synergist of chitosan-containing sodium sulfonate of the present invention, is achieved by the steps of:
(f1) stirring is opened after 19 parts of chitosan sodium sulfonates, 10 parts of potassium hydroxide and 37 parts of water are added into reaction kettle, and
Heating is begun to warm up, until temperature is reacted 4.5 hours after reaching 102 DEG C；
(f2) 15 parts of glycidyl acrylates and 9 parts of (3-glycidoxypropyl group) allyl oxygen are added into reaction kettle
Base dimethoxysilane starts that the ammonium persulfate solution that mass percent concentration is 7%, this ammonium persulfate solution is added dropwise after adding
It is formulated by 0.7 part of ammonium persulfate and 9.3 parts of water；Time for adding control temperature at 3 hours, dropwise addition is controlled at 116 DEG C；Drop
Temperature is kept after adding, and the reaction was continued 5.5 hours, and cooling discharge is to get the concrete intensifier.
Embodiment 5
The Concrete synergist of a kind of chitosan-containing sodium sulfonate of the invention, by weight, by following raw material components
It is made:
A kind of preparation method of the Concrete synergist of chitosan-containing sodium sulfonate of the present invention, is achieved by the steps of:
(g1) stirring is opened after 20 parts of chitosan sodium sulfonates, 11 parts of potassium hydroxide and 36 parts of water are added into reaction kettle, and
Heating is begun to warm up, until temperature is reacted 4 hours after reaching 101 DEG C；
(g2) 13 parts of glycidyl methacrylate and 10 parts of (3-glycidoxypropyl group) alkene are added into reaction kettle
Propoxyl group dimethoxysilane starts that the ammonium persulfate solution that mass percent concentration is 8%, this ammonium persulfate is added dropwise after adding
Solution is formulated by 0.8 part of ammonium persulfate and 9.2 parts of water；Time for adding control temperature at 3 hours, dropwise addition is controlled 118
℃；Temperature is kept after dripping, and the reaction was continued 5 hours, and cooling discharge is to get the concrete intensifier.
Embodiment 6
The Concrete synergist of a kind of chitosan-containing sodium sulfonate of the invention, by weight, by following raw material components
It is made:
Wherein, initiator uses the mixture of sodium peroxydisulfate and potassium peroxydisulfate, and the quality of sodium peroxydisulfate and potassium peroxydisulfate
Than for 1:1, that is, the dosage of sodium peroxydisulfate and potassium peroxydisulfate is 0.45 part.
The preparation method of chitosan derivative species Concrete synergist of the invention, is achieved by the steps of:
(h1) stirring is opened after 21 parts of chitosan sodium sulfonates, 12 parts of inorganic bases and water are added into reaction kettle, and starts to add
Heat heating, until temperature is reacted 3.5 hours after reaching 96 DEG C；
(h2) 11 parts of epoxides and 10 parts of (3-glycidoxypropyl group) allyloxy diformazans are added into reaction kettle
Oxysilane starts that the initiator solution that mass percent concentration is 9% is added dropwise after adding, this initiator solution is by 0.45 part of mistake
Sodium sulphate, 0.45 part of potassium peroxydisulfate and 9.1 parts of water are formulated；Time for adding control temperature control at 3 hours, dropwise addition exists
118℃；Temperature is kept after dripping, and the reaction was continued 2.5 hours, and cooling discharge is to get the concrete intensifier.
Following tests compares inspection using the common concrete grade C30 of Concrete Enterprises as benchmark match ratio.It uses
The concrete application test that Concrete synergist of the invention carries out, illustrates its effect.
1 C30 concrete mix kg/m3 of table
| Match ratio | Cement | Water | Flyash | Slag | River sand | 5~31.5mm rubble |
| Benchmark | 210 | 150 | 98 | 54 | 790 | 1038 |
| After adjustment | 189 | 150 | 98 | 54 | 790 | 1059 |
Remarks:
1, the cement of cement selection PO42.5；
2, using fineness for the flyash of (45 μm) is 10%, water demand ratio 94%, water content 0.3%, and loss on ignition is
1.8%；
3, slag selects 95 grades of slags, specific surface area 420m2/kg, and fluidity ratio is that 102%, 7d compression strength is
77MPa, 28d compression strength are 98MPa；
4, the river sand selected, fineness modulus 2.6, clay content 1.5, clod content are 0%；
5, the gradation of rubble is the rubble of 5~31.5mm, elongated particles 8.2%, crush index 11.1%, clay content
0.5%, clod content 0%；
6, water-reducing agent uses low dense polycarboxylate water-reducer JSS, water-reducing rate 20%.
A kind of Concrete synergist provided by the invention has reinforcing effect to cement, improves workability；Concrete is in benchmark
In the case that formulation condition is constant, the concrete workability of preparation is good, is easy to construct, and loss of slump is smaller, and 7d and 28d is anti-
Compressive Strength is obviously improved effect, and the experimental results are shown inthe following table for concrete strength:
The application effect of the Concrete synergist of 2 embodiment of the present invention 1~6 of table preparation
Remarks:
1, match ratio selects benchmark match ratio；
2, water-reducing agent is polycarboxylate water-reducer, dosage 9.7kg/m3；
2, the dosage of synergist is 3/10000ths of cement consumption.
A kind of Concrete synergist provided by the invention has reinforcing effect to cement, improves workability；Concrete is adjusting
Under the conditions of match ratio afterwards (cement consumption reduces 10%), experiment is compared with benchmark match ratio, finds 7d and 28d pressure resistance
Degree will not decline, or even also increase, it is known that, Concrete synergist provided by the invention is reduced the effect of cement consumption.
The experimental results are shown inthe following table for concrete strength:
The application effect of the Concrete synergist of 3 embodiment of the present invention 1~6 of table preparation
Remarks:
1, benchmark match ratio is selected in comparative sample experiment, and Examples 1 to 6 selects match ratio adjusted；
2, the dosage of polycarboxylate water-reducer is 9.7kg/m3；
3, the dosage of synergist is 3/10000ths of cement consumption.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments by being detached under the principle of the present invention and objective, of the invention
Range is defined by the claims and their equivalents.
Claims (8)
1. a kind of Concrete synergist of chitosan-containing sodium sulfonate, it is characterised in that: by weight, the synergist is by following originals
Material composition, chitosan sodium sulfonate is 15~24 parts, inorganic base is 6~14 parts, epoxide is 10~20 parts, (3- epoxy third
Oxygroup propyl) allyloxy dimethoxysilane is 5~15 parts, initiator is 0.05~1 part and water is 40~55 parts；It is described
Initiator is the mixture of one or more of sodium peroxydisulfate, potassium peroxydisulfate or ammonium persulfate, the epoxide
For allyl glycidyl ester, allyl polyethenoxy epoxy group ether, allyl polyethenoxy polyoxypropylene epoxy group ether, propylene
Acid glycidyl ester, glycidyl methacrylate one of which or two or more mixtures.
2. the Concrete synergist of chitosan-containing sodium sulfonate according to claim 1, it is characterised in that: by weight,
The synergist is made of following raw materials, and chitosan sodium sulfonate is 18 parts, inorganic base is 8 parts, epoxide is 17 parts, (3- ring
Oxygen propoxypropyl) allyloxy dimethoxysilane is 7 parts, initiator is 0.3 part and water is 50.7 parts.
3. the Concrete synergist of chitosan-containing sodium sulfonate according to claim 1 or 2, it is characterised in that: described inorganic
Alkali is the mixture of one or both of sodium hydroxide or potassium hydroxide.
4. the method for preparing the Concrete synergist of chitosan-containing sodium sulfonate, which comprises the following steps:
(a1) by weight, be added into reaction kettle 15~24 parts of load weighted chitosan sodium sulfonate, 6~14 parts of inorganic base and
Water, reaction temperature are maintained at 90~105 DEG C, react 1~5 hour, obtain mixture A；
(a2) by weight, then toward 10~20 parts of epoxide and (3-epoxies third are added in reaction kettle in mixture A
Oxygroup propyl) 5~15 parts of allyloxy dimethoxysilane, obtain mixture B；The epoxide is that allyl glycidyl is sweet
Grease, allyl polyethenoxy epoxy group ether, allyl polyethenoxy polyoxypropylene epoxy group ether, glycidyl acrylate,
Glycidyl methacrylate one of which or two or more mixtures；
(a3) initiator solution that mass percent concentration is 1~10%, the initiator solution are then added into mixture B
Water is dissolved in by 0.05~1 part of initiator in parts by weight to be formulated；It is 105 that the process that initiator solution is added, which keeps temperature,
~120 DEG C；After the completion of initiator solution is added, temperature is continually maintained between 105~120 DEG C, reacts 2~6 hours to get institute
State concrete intensifier；
By weight, preparing the total water consumption of the synergist is 40~55 parts, including chitosan sodium sulfonate, inorganic base and water
Reaction system water phase water consumption and preparation initiator water consumption.
5. the method for the Concrete synergist according to claim 4 for preparing chitosan-containing sodium sulfonate, it is characterised in that: packet
Include following steps:
(b1) by weight, 18 parts of load weighted chitosan sodium sulfonate, 8 parts of inorganic base and water are added into reaction kettle, reacts
Temperature is maintained at 101 DEG C, reacts 3.5 hours, obtains mixture A；
(b2) by weight, then toward 17 parts of epoxide and (3-glycidoxies are added in reaction kettle in mixture A
Propyl) 7 parts of allyloxy dimethoxysilane, obtain mixture B；
(b3) then into mixture B be added mass percent concentration for 6% initiator solution, the initiator solution by with
0.3 part of initiator of parts by weight meter is dissolved in water and is formulated；It is 112 DEG C that the process that initiator solution is added, which keeps temperature,；Cause
After the completion of agent solution is added, temperature is continually maintained in 112 DEG C, reacts 4.5 hours to get the concrete intensifier；
By weight, preparing the total water consumption of the synergist is 50.7 parts, including the anti-of chitosan sodium sulfonate, inorganic base and water
It answers system water phase water consumption and prepares initiator water consumption.
6. the method for the Concrete synergist according to claim 5 for preparing chitosan-containing sodium sulfonate, it is characterised in that: institute
It states in step (b3), it is 2.5~4 hours that the adding manner of the initiator solution, which is the time for being added dropwise, and being added dropwise,.
7. the method for the Concrete synergist according to claim 6 for preparing chitosan-containing sodium sulfonate, it is characterised in that: drop
The time added is 3.5 hours.
8. the method for the Concrete synergist according to claim 4 or 5 for preparing chitosan-containing sodium sulfonate, feature exist
In: the inorganic base is the mixture of one or both of sodium hydroxide or potassium hydroxide.
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| CN108585582A (en) * | 2018-06-17 | 2018-09-28 | 李达峰 | A kind of Concrete synergist and preparation method thereof |
| CN111518240B (en) * | 2018-06-17 | 2022-05-06 | 山西康特尔精细化工有限责任公司 | Preparation method of concrete synergist containing amide group |
| CN109929455A (en) * | 2019-03-27 | 2019-06-25 | 常州天瑞新材料科技有限公司 | A kind of ceramic coating being sprayed on SMC plate |
| CN111454015B (en) * | 2020-05-07 | 2022-04-26 | 山西康瑞建材新技术有限责任公司 | Preparation and application of concrete anti-cracking reinforcing agent |
| CN112062494A (en) * | 2020-09-16 | 2020-12-11 | 天津炬实科技发展股份有限公司 | Inorganic mineral reinforcing agent |
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