CN109879623A - It is a kind of to protect the anti-chamotte mould polycarboxylic acids and preparation method thereof that collapses - Google Patents
It is a kind of to protect the anti-chamotte mould polycarboxylic acids and preparation method thereof that collapses Download PDFInfo
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- CN109879623A CN109879623A CN201910231000.5A CN201910231000A CN109879623A CN 109879623 A CN109879623 A CN 109879623A CN 201910231000 A CN201910231000 A CN 201910231000A CN 109879623 A CN109879623 A CN 109879623A
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Abstract
The anti-chamotte mould polycarboxylic acids and preparation method thereof that collapses is protected the invention proposes a kind of, its raw material includes following components by weight: 250.0-300.0 parts of polymeric monomer, 5.0-10.0 parts of acrylic acid, 10.0-20.0 parts of hydroxypropyl acrylate, 7.5-15.0 parts of dimethyl diallyl ammonium chloride, 1.0-1.5 parts of sodium hydrogensulfite, 3.0-4.0 parts of mercaptopropionic acid, 4.0-7.0 parts of initiator, 400.0-500.0 parts of pure water, 30% 10.0-20.0 parts of sodium hydroxide, 10.0-20.0 parts of desulfurized gypsum, 5.0-10.0 parts of air entraining agent, 10.0-15.0 parts of water-reducing agent, the guarantor is collapsed anti-chamotte mould polycarboxylic acids and preparation method thereof, whole process is without heating, energy conservation and environmental protection, with higher initial stage diminishing Rate protects ability of collapsing with better, with there is stronger cement granules dispersibility holding capacity, having concrete, volume is low, water-reducing rate is high, reinforcing effect is good, durability is strong, preferably to cement dispersibility, and do not influence concrete coagulating time and air content, the mobility and plasticity that concrete can be improved reduce the bleeding and isolation of concrete.
Description
Technical field
The present invention relates to technical field of concrete, specially a kind of to protect the anti-chamotte mould polycarboxylic acids and preparation method thereof that collapses.
Background technique
With flourishing for infrastructure construction in china, the various aspects of performance of concrete necessary to infrastructure construction
Also it is being continuously improved, also higher and higher to the requirement of concrete slump retaining agent at the same time, polycarboxylic-acid slump retaining agent is third generation height
Performance slump retaining agent has the features such as volume is low, water-reducing rate is big, loss of slump is small, good with cement adaptability, but current coagulation
The anti-mud agent of soil and slump retaining agent water-reducing rate are lower, and guarantor is collapsed, and ability is bad, and the use of preparation process and raw material does not accomplish that energy conservation and environmental protection is wanted
It asks, insufficient to cement granules dispersibility holding capacity, having concrete, volume is high, water-reducing rate is low, reinforcing effect is bad, durable
Inadequate, the water-reducing rate low drawback poor to cement dispersibility of property, also directly affects concrete coagulating time and air content, coagulation
The big heavy discount of mobility and plasticity of soil, increases the bleeding and isolation of concrete, therefore be able to solve the one of problems
The realization that kind protects the anti-chamotte mould polycarboxylic acids and preparation method thereof that collapses is imperative.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of guarantor and collapses anti-chamotte mould polycarboxylic acids and its system
There is Preparation Method high water reducing rate and good guarantor to collapse ability, and whole process has higher initial stage without heating, energy conservation and environmental protection
Water-reducing rate and preferably guarantor is collapsed ability, there is stronger cement granules dispersibility holding capacity, make concrete it is low with volume,
Water-reducing rate is high, reinforcing effect is good, durability is strong, preferably to cement dispersibility, and does not influence concrete coagulating time and air content,
The mobility and plasticity that concrete can be improved reduce the bleeding and isolation of concrete, can effectively solve in background technique
The problem of.
To achieve the above object, the present invention proposes: a kind of to protect the anti-chamotte mould polycarboxylic acids that collapses, raw material includes following by weight
Component: its raw material includes following components by weight: 250.0-300.0 parts of polymeric monomer, 5.0-10.0 parts of acrylic acid, acrylic acid hydroxyl
10.0-20.0 parts of propyl ester, 7.5-15.0 parts of dimethyl diallyl ammonium chloride, 1.0-1.5 parts of sodium hydrogensulfite, mercaptopropionic acid
3.0-4.0 parts, 4.0-7.0 parts of initiator, 400.0-500.0 parts of pure water, 10.0-20.0 parts of 30% sodium hydroxide, desulfurized gypsum
10.0-20.0 parts, 5.0-10.0 parts of air entraining agent, 10.0-15.0 parts of water-reducing agent.
As a preferred technical solution of the present invention: the polymeric monomer is methyl allyl alcohol polyoxyethylene ether and iso-amylene
Mixture of the alcohol polyoxyethylene ether by weight 1.0:1.0.
As a preferred technical solution of the present invention: the acrylic acid, hydroxypropyl acrylate, dimethyl diallyl chlorine
Change ammonium is 1.0:2.0:1.5 by weight.
As a preferred technical solution of the present invention: the air entraining agent is alkylsulfonate and alkylbenzene sulfonate by weight
Measure the mixture than 1.0:1.0.
As a preferred technical solution of the present invention: the initiator is that sodium sulphate, ammonium persulfate and potassium peroxydisulfate are pressed
The mixture of weight ratio 1.0:1.0:1.0.
As a preferred technical solution of the present invention: the water-reducing agent is that sulfonated melamine resin and sulfonation Gu code are grand
One or both of resin.
The present invention also provides a kind of preparation methods for protecting the anti-chamotte mould polycarboxylic acids that collapses: the following steps are included:
Step 1: polymeric monomer is put into the pure water of 0.7-1.0 times of weight, it is stirred at room temperature molten to being completely dissolved to obtain
It is placed after liquid stand-by；
Step 2: initiator addition pure water is tuned into initiator solution, put into large monomer solution made from step 1
Initiator solution simultaneously stirs 10.0-25.0 minutes；
Step 3: being by weight 1.0:2.0 by acrylic acid, hydroxypropyl acrylate and dimethyl diallyl ammonium chloride:
1.5 ratio mixing, and pure water stirring is added, addition pure water stirring after sodium hydrogensulfite and mercaptopropionic acid are mixed, to step
Solution produced above is added dropwise and ceaselessly stirs simultaneously in solution made from two, until heat preservation terminates, by alkylsulfonate and
Mixture, desulfurized gypsum and water-reducing agent are added in solution by alkylbenzene sulfonate later by weight the mixing of 1.0:1.0,
Until being thoroughly mixed dissolution, system temperature is observed during liquid is added dropwise, if temperature is more than 40 DEG C, cooling system need to be opened
System cools down, and system temperature is down to 38-40 DEG C；
Step 4: mixed liquor made from step 3 is cured 1.0-2.0 hours, curing temperature is 30-40 DEG C, maturing process
It is kept stirring, being neutralized to PH with 30% sodium hydrate aqueous solution is 6.0-7.0, and then adding pure water to solid content is 40% i.e.
Finished product.
Compared with prior art, the beneficial effects of the present invention are: poly-carboxylic high-performance slump retaining agent of the invention subtracts with height
Water rate and good guarantor are collapsed ability, and whole process has higher initial stage water-reducing rate and preferably protect without heating, energy conservation and environmental protection
It collapses ability, there is stronger cement granules dispersibility holding capacity, having concrete, volume is low, water-reducing rate is high, enhancing effect
Fruit is good, durability is strong, preferably to cement dispersibility, and does not influence concrete coagulating time and air content, concrete can be improved
Mobility and plasticity, reduce the bleeding and isolation of concrete.
Specific embodiment
Below in conjunction with embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
The present invention the following technical schemes are provided:
Embodiment one: 250.0 parts of methyl allyl alcohol polyoxyethylene ethers and isoamyl are added in the four-hole boiling flask of certain capacity
Enol polyoxyethylene ether adds 175.0 parts of pure water by weight the mixture of 1.0:1.0, stirs at low speed to being completely dissolved, will
4.0 parts of sodium sulphate, ammonium persulfate and potassium peroxydisulfate are mixed with 60.0 parts of pure water to complete by weight the mixture of 1.0:1.0:1.0
Cheng Xie, by 7.5 parts and 30.0 parts 5.0 parts of acrylic acid, 10.0 parts of hydroxypropyl acrylate, dimethyl diallyl ammonium chloride pure water
It mixes to completing to solve, is mixed by 3.0 parts and 70.0 parts 1.0 parts of sodium hydrogensulfite, mercaptopropionic acid pure water to completing to solve, to step
Solution produced above is added dropwise and ceaselessly stirs simultaneously in solution made from two, until heat preservation terminates, by 5.0 parts of alkyl sulfonic acids
10.0 parts of mixture, the desulfurized gypsum and sulfonated melamine resin 10.0 of salt and alkylbenzene sulfonate by weight 1.0:1.0
Part is added in solution, until being thoroughly mixed dissolution, system temperature is observed during liquid is added dropwise, if temperature is more than 40
DEG C, cooling system need to be opened and cooled down, system temperature is down to 38-40 DEG C, mixed liquor made from step 3 is cured into 1.0-
2.0 hours, curing temperature was 30-40 DEG C, and maturing process is kept stirring, and is neutralized to 10.0 part 30% of sodium hydrate aqueous solution
PH is 6.0-7.0, then adds 75.0 parts of pure water to solid content and obtains finished product for 40%.
Methyl allyl alcohol polyoxyethylene ether and isoamyl alcohol polyoxyethylene ether have stronger cement granules dispersibility to protect
Ability is held, having concrete, volume is low, water-reducing rate is high, reinforcing effect is good, durability is strong, not Corrosion Reinforcement and environmentally friendly
The features such as, sulfonated melamine resin and the grand resin of sulfonation Gu code disperse cement during the blending with concrete material
Property it is preferable, water-reducing rate is high, and does not influence concrete coagulating time and air content, and the mobility of concrete and plastic can be improved
Property, reduce the bleeding and isolation of concrete, alkylsulfonate and alkylbenzene sulfonate substantially increase concrete frost resistance and
Salt-freezing resistance.
Embodiment two: 280.0 parts of methyl allyl alcohol polyoxyethylene ethers and isoamyl are added in the four-hole boiling flask of certain capacity
Enol polyoxyethylene ether adds 210.0 parts of pure water by weight the mixture of 1.0:1.0, stirs at low speed to being completely dissolved, will
6.0 parts of sodium sulphate, ammonium persulfate and potassium peroxydisulfate are mixed with 70.0 parts of pure water to complete by weight the mixture of 1.0:1.0:1.0
Cheng Xie, by 7.0 parts of acrylic acid, 14.0 parts of hydroxypropyl acrylate, 10.5 parts and 40.0 parts of dimethyl diallyl ammonium chloride it is pure
Water is mixed to completing to solve, and is mixed by 3.5 parts and 80.0 parts 1.2 parts of sodium hydrogensulfite, mercaptopropionic acid pure water to completion and is solved, Xiang Bu
Solution produced above is added dropwise and ceaselessly stirs simultaneously in solution made from rapid two, until heat preservation terminates, by 8.0 parts of alkyl sulphurs
15.0 parts of mixture, the desulfurized gypsum and sulfonated melamine resin of hydrochlorate and alkylbenzene sulfonate by weight 1.0:1.0
15.0 parts are added in solution, until being thoroughly mixed dissolution, observe system temperature during liquid is added dropwise, if temperature is super
40 DEG C are crossed, cooling system need to be opened and cooled down, system temperature is down to 38-40 DEG C, mixed liquor made from step 3 is cured
1.0-2.0 hours, curing temperature was 30-40 DEG C, and maturing process is kept stirring, in 15.0 part 30% of sodium hydrate aqueous solution
Be 6.0-7.0 to PH, then adding 80.0 parts of pure water to solid content is 40% to obtain finished product.
Methyl allyl alcohol polyoxyethylene ether and isoamyl alcohol polyoxyethylene ether have stronger cement granules dispersibility to protect
Ability is held, having concrete, volume is low, water-reducing rate is high, reinforcing effect is good, durability is strong, not Corrosion Reinforcement and environmentally friendly
The features such as, sulfonated melamine resin and the grand resin of sulfonation Gu code disperse cement during the blending with concrete material
Property it is preferable, water-reducing rate is high, and does not influence concrete coagulating time and air content, and the mobility of concrete and plastic can be improved
Property, bleeding and isolation are reduced, alkylsulfonate and alkylbenzene sulfonate substantially increase the frost resistance and salt-freezing resistance of concrete.
Embodiment three: 300.0 parts of methyl allyl alcohol polyoxyethylene ethers and isoamyl are added in the four-hole boiling flask of certain capacity
Enol polyoxyethylene ether adds 210.0 parts of pure water by weight the mixture of 1.0:1.0, stirs at low speed to being completely dissolved, will
7.0 parts of sodium sulphate, ammonium persulfate and potassium peroxydisulfate are mixed with 75.0 parts of pure water to complete by weight the mixture of 1.0:1.0:1.0
Cheng Xie, by 10.0 parts of acrylic acid, 20.0 parts of hydroxypropyl acrylate, 15.0 parts and 45.0 parts of dimethyl diallyl ammonium chloride it is pure
Water is mixed to completing to solve, and is mixed by 4.0 parts and 85.0 parts 1.5 parts of sodium hydrogensulfite, mercaptopropionic acid pure water to completion and is solved, Xiang Bu
Solution produced above is added dropwise and ceaselessly stirs simultaneously in solution made from rapid two, until heat preservation terminates, by 10.0 parts of alkyl
20.0 parts of mixture, the desulfurized gypsum and the grand resin of sulfonation Gu code of sulfonate and alkylbenzene sulfonate by weight 1.0:1.0
15.0 parts are added in solution, until being thoroughly mixed dissolution, observe system temperature during liquid is added dropwise, if temperature is super
40 DEG C are crossed, cooling system need to be opened and cooled down, system temperature is down to 38-40 DEG C, mixed liquor made from step 3 is cured
1.0-2.0 hours, curing temperature was 30-40 DEG C, and maturing process is kept stirring, in 20.0 part 30% of sodium hydrate aqueous solution
Be 6.0-7.0 to PH, then adding 85.0 parts of pure water to solid content is 40% to obtain finished product.
Methyl allyl alcohol polyoxyethylene ether and isoamyl alcohol polyoxyethylene ether have stronger cement granules dispersibility to protect
Ability is held, having concrete, volume is low, water-reducing rate is high, reinforcing effect is good, durability is strong, not Corrosion Reinforcement and environmentally friendly
The features such as, sulfonated melamine resin and the grand resin of sulfonation Gu code disperse cement during the blending with concrete material
Property it is preferable, water-reducing rate is high, and does not influence concrete coagulating time and air content, and the mobility of concrete and plastic can be improved
Property, bleeding and isolation are reduced, alkylsulfonate and alkylbenzene sulfonate substantially increase the frost resistance and salt-freezing resistance of concrete.
Benefit of the present invention: under conditions of identical solid volume, poly-carboxylic high-performance slump retaining agent of the invention has higher
Initial stage water-reducing rate protects ability of collapsing with better, there is stronger cement granules dispersibility holding capacity, has concrete and mixes
Measure that low, water-reducing rate is high, reinforcing effect is good, durability, preferably to cement dispersibility, water-reducing rate is high, and does not influence concrete coagulation
The mobility and plasticity of concrete can be improved in time and air content, reduces bleeding and isolation.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
- The anti-chamotte mould polycarboxylic acids 1. a kind of guarantor is collapsed, it is characterised in that: its raw material includes following components by weight: polymeric monomer 250.0- 300.0 parts, 5.0-10.0 parts of acrylic acid, 10.0-20.0 parts of hydroxypropyl acrylate, dimethyl diallyl ammonium chloride 7.5-15.0 Part, 1.0-1.5 parts of sodium hydrogensulfite, 3.0-4.0 parts of mercaptopropionic acid, 4.0-7.0 parts of initiator, 400.0-500.0 parts of pure water, 30% 10.0-20.0 parts of sodium hydroxide, 10.0-20.0 parts of desulfurized gypsum, 5.0-10.0 parts of air entraining agent, water-reducing agent 10.0-15.0 Part.
- The anti-chamotte mould polycarboxylic acids 2. a kind of guarantor according to claim 1 is collapsed, it is characterised in that: the polymeric monomer is methallyl The mixture of alcohol polyoxyethylene ether and isoamyl alcohol polyoxyethylene ether by weight 1.0:1.0.
- The anti-chamotte mould polycarboxylic acids 3. a kind of guarantor according to claim 1 is collapsed, it is characterised in that: the acrylic acid, acrylic acid hydroxyl Propyl ester, dimethyl diallyl ammonium chloride are 1.0:2.0:1.5 by weight.
- The anti-chamotte mould polycarboxylic acids 4. a kind of guarantor according to claim 1 is collapsed, it is characterised in that: the air entraining agent is alkyl sulfonic acid The mixture of salt and alkylbenzene sulfonate by weight 1.0:1.0.
- 5. a kind of guarantor according to claim 1 is collapsed anti-chamotte mould polycarboxylic acids, it is characterised in that: the initiator be sodium sulphate, The mixture of ammonium persulfate and potassium peroxydisulfate by weight 1.0:1.0:1.0.
- The anti-chamotte mould polycarboxylic acids 6. a kind of guarantor according to claim 1 is collapsed, it is characterised in that: the water-reducing agent is sulfonation trimerization One or both of melamine resin and the grand resin of sulfonation Gu code.
- The preparation method of anti-chamotte mould polycarboxylic acids 7. a kind of guarantor is collapsed, it is characterised in that: the following steps are included:Step 1: polymeric monomer is put into the pure water of 0.7-1.0 times of weight, it is stirred at room temperature to being completely dissolved after obtaining solution It places stand-by；Step 2: initiator addition pure water is tuned into initiator solution, puts into and cause into large monomer solution made from step 1 Agent solution simultaneously stirs 10.0-25.0 minutes；Step 3: being by weight 1.0:2.0:1.5's by acrylic acid, hydroxypropyl acrylate and dimethyl diallyl ammonium chloride Ratio mixing, and pure water stirring is added, the stirring of addition pure water, is made to step 2 after sodium hydrogensulfite and mercaptopropionic acid are mixed Solution in simultaneously solution produced above is added dropwise and ceaselessly stirs, until heat preservation terminate, by alkylsulfonate and alkylbenzene Mixture, desulfurized gypsum and water-reducing agent are added in solution by sulfonate later by weight the mixing of 1.0:1.0, until complete Full mixed dissolution observes system temperature during liquid is added dropwise, if temperature is more than 40 DEG C, need to open cooling system progress Cooling, is down to 38-40 DEG C for system temperature；Step 4: mixed liquor made from step 3 is cured 1.0-2.0 hours, curing temperature is 30-40 DEG C, and maturing process is kept Stirring, being neutralized to PH with 30% sodium hydrate aqueous solution is 6.0-7.0, then adds pure water and obtains to solid content for 40% Finished product.
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