CN109879628A - A kind of water-resistant type building mortar plasticizer and preparation method thereof - Google Patents
A kind of water-resistant type building mortar plasticizer and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of water-resistant type building mortar plasticizers and preparation method thereof, belong to additives for building materials technical field.The present invention solves the problems, such as that the water resistant barrier performance of current plasticiser, endurance quality are poor.The present invention is improved the workability of mortar, is then preferably plasticized by the hydrophilic interaction of carboxyl, hydroxyl isopolarity group in polymer, so that building mortar keeps preferable mobile performance, reduces flow losses rate.The hydrophobic group of Long carbon chain is introduced, so that it thickens mortar, there is shear restoration, so that mortar keeps preferable viscosity in plasticizing process, so that the mechanical property of mortar and consistency improve, to further increase mortar strength.Utilize the groups such as its good dispersion performance and the hydramine that hydration process can be participated in, polar group polyhydroxy, phosphate group for being had etc. can form complex compound with calcium hydroxide, and plasticizing forming is promoted to increase the Frost Resistance energy that plasticiser uses rear mortar.
Description
Technical field
The invention belongs to additives for building materials technical fields, and in particular to a kind of water-resistant type building mortar plasticizer and its
Preparation method.
Background technique
It masonry in construction projects, plastering and pastes in the mortar of decorative encasing material, for many years always with tradition
Quick lime as mortar plasticizer.Quick lime is in production, storing and use process, and due to complex procedures, operating technology is difficult
Degree is big, is easy pollution environment, influences people's health, the packed pulverized limestone used in recent years, since there are price height, volume is huge
Greatly, the deficiencies of technical difficulty is big, and construction quality is difficult to ensure, so either packed pulverized limestone or quick lime, are generally difficult to
It promotes.
In recent years, energy saving with the development of society, people focus on environmental protection, it successively develops instead of lime
Organic plasticizer.Such as mortar plasticizing powder of the colloid foaming agent of Shanxi Province Wanrong County production, Hunan.Their appearance is China
Environmental protection and energy saving, Building material innovation reform cause opens frontier, but from the point of view of total development angle, they are common to be lacked
Point is exactly unstable quality, and such as with foaming agent (saponification rosin), when use is dissolved with boiled water, construction inconvenience, and quality is not easily-controllable
System, some foaming agent mortar strengths generate modeling phenomenon, have caused the concern of relevant expert scholar, for this purpose, new " masonry project
Construction and acceptance specification GB5203-98 " eliminate former specification allow using " saponification rosin foaming agent " printed words.There is " mortar again
Plasticizing powder " Chinese patent 98112486.0, main feature are as follows: be made of water, rosin, compound three ethyl alcohol of sodium carbonate saponification
Then mother liquor is mixed into pulvis with sepiolite powder and forms.Though the technology overcomes the shortcomings that with liquid foaming agent, plasticization mechanism
Still continued to use saponification rosin technology, though plus triethanolamine early strength agent, use quality or unstable, especially stable foam bubble
Effect is bad, and the shelf-life is short.Mortar plasticizer is that one kind acts in cementitious matter (cement), to improve cement mortar performance
Substance belongs to concrete admixture scope.Main function is workability, the water-retaining property for improving mortar, improves to build and smears efficiency, reduces
Landing ash saves cement and lime paste.It masonry in construction projects, plastering and pastes in the mortar of decorative encasing material,
Use traditional quick lime as mortar plasticizer always for many years.Diffusion cement, emulsion foam etc. is primarily served in mortar to make
With.The common faults such as flake, crack can be overcome, on the ground of inflation concrete, ordinary concrete, bottoming or surface layer use best, the sand in masonry
It is high to starch plumpness, has the effects that freeze proof, diminishing, antiseepage, durable, cracking resistance, heat preservation, heat-insulated after hardening.The bag used in recent years
Pulverized limestone is filled, since there are price height, bulky, the deficiencies of technical difficulty is big, and construction quality is difficult to ensure, so either
Packed pulverized limestone or quick lime are generally difficult to promote.
Masonry mortar and wall coating mortar are also the very important component part of wall, the direct shadow of the quality of mortar
Ring the quality level and cost of construction efficiency and whole building.Now the yield of annual common brick just up to 500,000,000,000 pieces with
On, it only builds these clay bricks and just needs about 2.5 hundred million m of mortar3.Clay brick is the stronger porous material of water imbibition, therefore just
It is required that masonry mortar has good workability.The common practice is that a large amount of lime paste is mixed in cement mortar, according to rough
Calculating estimation, prepare 2.5 hundred million m3Cement and lime mixed mortar about need lime paste 0.39 ~ 0.48 hundred million ton.It produces so more
Lime paste can bring a series of problem: consume a large amount of limestone mine data, destroy the ecological balance；Consume a large amount of energy
Source, and cause serious environmental pollution；Adverse effect is brought to urban transportation and environmental sanitation；Occupy the construction field of larger area
Ground, and increase the labor intensity of worker.In cement mortar, the mortar workability that incorporation mortar plasticizer is prepared is good, mortar
Frost resistance, impermeability and intensity all improve.And it is easy to operate, and lime, cement can be saved etc..So using sand
Starching plasticiser replaces lime paste to prepare mortar with huge economic benefit and social benefit.
Summary of the invention
The technical problems to be solved by the invention: for current plasticiser water resistant barrier performance, endurance quality difference ask
Topic provides a kind of water-resistant type building mortar plasticizer and preparation method thereof.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of water-resistant type water-resistant type building mortar plasticizer, including diminishing additive, stress shearing elevator, disperse and grind aid addition
Agent, foaming additive.
The diminishing additive the preparation method comprises the following steps: take allyl polyethenoxy ether 2 ~ 5:10 in mass ratio ~ 15 be added water
It is stirred, obtains mixture, according to the mass fraction, take 5 ~ 10 parts of acrylic acid, 2 ~ 5 parts of hydroxypropyl acrylates, 3 ~ 6 parts of acrylic acid hydroxyls
Propyl ester, 5 ~ 15 parts of mixtures are stirred to get diminishing additive.
Stress shearing elevator the preparation method comprises the following steps:
(1) it takes epoxychloropropane 1 ~ 3:10 in mass ratio ~ 20 that deionized water is added to be stirred, epoxychloropropane quality 70 is added dropwise
~ 90% activated monomer, is stirred, and obtains stirring mixture, takes stirring mixture 3 ~ 5:100 in mass ratio ~ 150 that hydrogen-oxygen is added
Change sodium solution to be stirred, obtain mixed liquor, take mixed liquor 5 ~ 10:2 in mass ratio ~ 5 that water is added, stand, upper liquid decompression is taken to steam
It evaporates, obtains vacuum distillation object；
(2) it takes starch raw material 1 ~ 3:7 in mass ratio ~ 10 that deionized water is added to be stirred, starch raw material quality 30 ~ 40% is added
Sodium hydroxide solution be stirred, then the vacuum distillation object of starch raw material quality 30 ~ 60% is added dropwise, is stirred, is cooled to room
Temperature adjusts pH to 6.8 ~ 7, obtains cooled material, takes cooled material 20 ~ 30:3 in mass ratio ~ 7 that acetone is added, and filtering takes filter residue and drying,
Elevator is sheared up to stress.
Activated monomer in the step (1) are as follows: taking dicyclohexyl amine, diisopropanolamine (DIPA), di-n-butylamine, di-n-propylamine, two just
Any one in octylame, diethylamine to get.
Starch raw material in the step (1) are as follows: two starch of hydroxypropyl is added in extracting corn starch 5 ~ 10:2 in mass ratio ~ 5
Phosphate mixing to get.
The disperse and grind aid additive are as follows: take calgon, odium stearate, sodium tripolyphosphate, triisopropanolamine, the third three
Alcohol, diethylene glycol, any one in ethylene glycol or it is any it is several by any mass ratio mix to get.
The foaming additive are as follows: it takes surfactant additive 3 ~ 7:2 in mass ratio ~ 5 that triethanolamine is added and is stirred,
Mixture a, take mixture a 3 ~ 9:1 in mass ratio ~ 3:3 ~ 7 be added hydroxyethyl cellulose, the mixing of carbomer 940 to get.
The surfactant additive are as follows: take neopelex 3 ~ 5:1 in mass ratio ~ 3 that fatty alcohol polyoxy is added
Vinethene mixing to get.
The preparation method includes the following steps: to take diminishing additive 100 ~ 150:1 in mass ratio ~ 3 that ammonium persulfate is added, then
The methylpropene sodium sulfonate of diminishing additive quality 3 ~ 5% is added, is warming up to 60 ~ 70 DEG C of heat preservations, is cooled to room temperature, obtains cooled material,
It takes cooled material 80 ~ 100:3 in mass ratio ~ 7 that sodium hydroxide is added to be stirred, mixture a must be stirred, according to the mass fraction, taken
15 ~ 20 parts of stirring mixture a, 20 ~ 30 parts of stress shear elevator, 3 ~ 7 parts of disperse and grind aid additives, 2 ~ 6 parts of foaming additives
It is stirred to get water-resistant type building mortar plasticizer.
The present invention is compared with other methods, and advantageous effects are:
(1) diminishing additive prepared by the present invention is to be gathered with allyl polyethenoxy ether, hydroxypropyl acrylate etc. for raw material
It closes, then carries out chain tra nsfer through methylpropene sodium sulfonate, carry out molecular-weight adjusting, so that building mortar keeps preferable mobility
Can, reduce flow losses rate, can be combined with mortar aquation by introducing the hydrophilic radicals such as carboxyl, pass through side chain and cement
The space steric effect of grain so that its dispersion performance is improved, and passes through the parent of carboxyl, hydroxyl isopolarity group in polymer
Water effect after being adsorbed on cement particle surface, can form the hydration shell with mechanical strength in cement particle surface, deposit
In the flocculent structure that can destroy cement granules, the Free water being wrapped in flocculent structure is released, and formed between particle
Lubricating action improves the workability of mortar, is then preferably plasticized；
(2) stress shearing elevator prepared by the present invention is to be reacted to obtain using epoxychloropropane and activated monomer as raw material
The cationic reagent of amine, starch is etherified, then is reacted with cationic reagent, is formed modified having and is improved
The substance of mortar shearing force introduces the hydrophobic group of Long carbon chain, so that it thickens mortar, has shear restoration, thus
So that mortar keeps preferable viscosity in plasticizing process, there is stronger interaction force between cement granules and form particle and pile up
Network forms early stage cement-hydrate on contact point between cement granules in network structure, fills up the hole of building mortar, so that
The mechanical property and consistency of mortar improve, to further increase mortar strength；
(3) disperse and grind aid additive prepared by the present invention is with calgon, triisopropanolamine, ethylene glycol isoreactivity agent for original
Material is added in plasticiser system, using the groups such as its good dispersion performance and the hydramine that can participate in hydration process, promotes
The crystal transfer of cement promotes crystallization, and polar group polyhydroxy, phosphate group for being had etc. can be formed with calcium hydroxide
Complex compound improves the activity of calcium ion, accelerates the Crystallisation process of hydrated product, so that into the plasticiser after mortar to sand
Slurry structure is modified, and promotes plasticizing forming, is finally reduced cement granules interfacial surface tension using foaming additive, is stablized
Emulsion foam, air bubble that is tiny and not penetrating through can be formed, destroy the continuity of capillary, by open hole
The hole for becoming occlusion, makes the evaporation approach of Free water become tiny dispersion so that blocking, this adds increased the impermeability of structure,
A large amount of equally distributed minute bubbles simultaneously, making can not be full of moisture in stomata, therefore can play to the expansion of icing good slow
Punching effect increases the Frost Resistance energy that plasticiser uses rear mortar.
Specific embodiment
Diminishing additive the preparation method comprises the following steps: take allyl polyethenoxy ether 2 ~ 5:10 in mass ratio ~ 15 be added water, in 40
~ 50 DEG C are stirred 20 ~ 40min, obtain mixture, according to the mass fraction, take 5 ~ 10 parts of acrylic acid, 2 ~ 5 parts of hydroxypropyl acrylates,
3 ~ 6 parts of hydroxypropyl acrylates, 5 ~ 15 parts of mixtures are stirred 20 ~ 30min in 50 ~ 60 DEG C to get diminishing additive.
Activated monomer are as follows: take dicyclohexyl amine, diisopropanolamine (DIPA), di-n-butylamine, di-n-propylamine, two n-octyl amines, in diethylamine
Any one to get.
Starch raw material are as follows: take starch raw material 5 ~ 10:2 in mass ratio ~ 5 that the mixing of hydroxypropyl PASELLI EASYGEL is added, i.e.,
?.
Stress shear elevator the preparation method comprises the following steps:
(1) it takes epoxychloropropane 1 ~ 3:10 in mass ratio ~ 20 that deionized water is added, is stirred 20 ~ 30min in 0 ~ 4 DEG C, be added dropwise
The activated monomer of epoxychloropropane quality 70 ~ 90%, it is stirred 18 in 10 ~ 15 DEG C ~ for 24 hours, stirring mixture is obtained, takes stirring mixed
It closes object 3 ~ 5:100 in mass ratio ~ 150 and the sodium hydroxide solution that mass fraction is 40% is added, it is stirred 30 in 15 ~ 20 DEG C ~
40min obtains mixed liquor, takes mixed liquor 5 ~ 10:2 in mass ratio ~ 5 that water is added, and stands 30 ~ 40min, upper liquid is taken to be evaporated under reduced pressure,
Object must be evaporated under reduced pressure；
(2) it takes starch raw material 1 ~ 3:7 in mass ratio ~ 10 that deionized water is added, is stirred 30 ~ 50min in 50 ~ 60 DEG C, be added
The sodium hydroxide solution that the mass fraction of starch raw material quality 30 ~ 40% is 40%, is stirred 50 ~ 60min in 60 ~ 70 DEG C, then
The vacuum distillation object of starch raw material quality 30 ~ 60% is added dropwise, is warming up to 80 ~ 90 DEG C and is stirred 10 ~ 12h, be cooled to room temperature, adjusts
PH to 6.8 ~ 7 is saved, cooled material is obtained, takes cooled material 20 ~ 30:3 in mass ratio ~ 7 that acetone is added, filtering takes filter residue and drying to get answering
Power shears elevator.
Disperse and grind aid additive are as follows: take calgon, odium stearate, sodium tripolyphosphate, triisopropanolamine, glycerine,
Any one in diethylene glycol, ethylene glycol or it is any it is several by any mass ratio mix to get.
Surfactant additive are as follows: take neopelex 3 ~ 5:1 in mass ratio ~ 3 that aliphatic alcohol polyethenoxy is added
Ether mixing to get.
Foaming additive are as follows: take surfactant additive 3 ~ 7:2 in mass ratio ~ 5 that triethanolamine is added, stirred in 30 ~ 40 DEG C
30 ~ 60min of mixing is mixed, mixture a is obtained, takes mixture a 3 ~ 9:1 in mass ratio ~ 3:3 ~ 7 that hydroxyethyl cellulose, Ka Boshu is added
Rouge 940 mixing to get.
A kind of preparation method of water-resistant type building mortar plasticizer, includes the following steps: to take diminishing additive in mass ratio
Ammonium persulfate is added in 100 ~ 150:1 ~ 3, adds the methylpropene sodium sulfonate of diminishing additive quality 3 ~ 5%, is warming up to 60 ~ 70
DEG C heat preservation 60 ~ 70min, be cooled to room temperature, obtain cooled material, take cooled material 80 ~ 100:3 in mass ratio ~ 7 be added sodium hydroxide, stir
20 ~ 40min of mixing is mixed, mixture a must be stirred, according to the mass fraction, 15 ~ 20 parts of stirring mixture a, 20 ~ 30 parts of stress is taken to cut
Elevator, 3 ~ 7 parts of disperse and grind aid additives, 2 ~ 6 parts of foaming additives are cut, are stirred 30 ~ 50min to get water-resistant type building
Mortar plasticizer.
Embodiment 1
Diminishing additive the preparation method comprises the following steps: take allyl polyethenoxy ether 2:10 in mass ratio that water is added, it is mixed in 40 DEG C of stirrings
20min is closed, mixture is obtained, according to the mass fraction, takes 5 parts of acrylic acid, 2 parts of hydroxypropyl acrylates, 3 parts of hydroxypropyl acrylates, 5 parts
Mixture is stirred 20min in 50 DEG C to get diminishing additive.
Activated monomer are as follows: dicyclohexyl amine.
Starch raw material are as follows: take starch raw material 5:2 in mass ratio be added hydroxypropyl PASELLI EASYGEL mixing to get.
Stress shear elevator the preparation method comprises the following steps:
(1) it takes epoxychloropropane 1:10 in mass ratio that deionized water is added, 20min is stirred in 0 DEG C, epoxychloropropane is added dropwise
The activated monomer of quality 70% is stirred 18h in 10 DEG C, obtains stirring mixture, and stirring mixture 3:100 in mass ratio is taken to add
Enter the sodium hydroxide solution that mass fraction is 40%, be stirred 30min in 15 DEG C, obtain mixed liquor, take mixed liquor in mass ratio 5:
2 are added water, stand 30min, take upper liquid to be evaporated under reduced pressure, obtain vacuum distillation object；
(2) it takes starch raw material 1:7 in mass ratio that deionized water is added, 30min is stirred in 50 DEG C, starch raw material quality is added
The sodium hydroxide solution that 30% mass fraction is 40%, is stirred 50min in 60 DEG C, then starch raw material quality 30% is added dropwise
It is evaporated under reduced pressure object, 80 DEG C is warming up to and is stirred 10h, be cooled to room temperature, pH to 6.8 is adjusted, obtains cooled material, take cooled material by matter
Acetone is added than 20:3 in amount, and filtering takes filter residue and drying to shear elevator to get stress.
Disperse and grind aid additive are as follows: take calgon, odium stearate by any mass ratio mix to get.
Surfactant additive are as follows: take neopelex 3:1 in mass ratio that fatty alcohol polyoxyethylene ether is added mixed
Close to get.
Foaming additive are as follows: take surfactant additive 3:2 in mass ratio that triethanolamine is added, be stirred in 30 DEG C
30min obtains mixture a, take mixture a 3:1:3 in mass ratio be added hydroxyethyl cellulose, carbomer 940 mixing to get.
A kind of preparation method of water-resistant type building mortar plasticizer, includes the following steps: to take diminishing additive in mass ratio
Ammonium persulfate is added in 100:1, adds the methylpropene sodium sulfonate of diminishing additive quality 3%, is warming up to 60 DEG C of heat preservation 60min,
It is cooled to room temperature, obtains cooled material, take cooled material 80:3 in mass ratio that sodium hydroxide is added, be stirred 20min, must be stirred
Object a takes 15 parts of stirring mixture a, 20 parts of stress shearing elevators, 3 parts of disperse and grind aid additives, 2 parts of hairs according to the mass fraction
Additive is steeped, is stirred 30min to get water-resistant type building mortar plasticizer.
Embodiment 2
Diminishing additive the preparation method comprises the following steps: take allyl polyethenoxy ether 4:12 in mass ratio that water is added, it is mixed in 45 DEG C of stirrings
30min is closed, mixture is obtained, according to the mass fraction, takes 7 parts of acrylic acid, 3 parts of hydroxypropyl acrylates, 5 parts of hydroxypropyl acrylates, 10
Part mixture, is stirred 25min in 5 DEG C to get diminishing additive.
Activated monomer are as follows: diisopropanolamine (DIPA).
Starch raw material are as follows: take starch raw material 8:4 in mass ratio be added hydroxypropyl PASELLI EASYGEL mixing to get.
Stress shear elevator the preparation method comprises the following steps:
(1) it takes epoxychloropropane 2:15 in mass ratio that deionized water is added, 25min is stirred in 3 DEG C, epoxychloropropane is added dropwise
The activated monomer of quality 80% is stirred 21h in 12 DEG C, obtains stirring mixture, and stirring mixture 4:125 in mass ratio is taken to add
Enter the sodium hydroxide solution that mass fraction is 40%, be stirred 35min in 18 DEG C, obtain mixed liquor, take mixed liquor in mass ratio 7:
3 are added water, stand 35min, take upper liquid to be evaporated under reduced pressure, obtain vacuum distillation object；
(2) it takes starch raw material 2:9 in mass ratio that deionized water is added, 40min is stirred in 55 DEG C, starch raw material quality is added
The sodium hydroxide solution that 35% mass fraction is 40%, is stirred 55min in 65 DEG C, then starch raw material quality 45% is added dropwise
It is evaporated under reduced pressure object, 85 DEG C is warming up to and is stirred 11h, be cooled to room temperature, pH to 6.9 is adjusted, obtains cooled material, take cooled material by matter
Acetone is added than 25:5 in amount, and filtering takes filter residue and drying to shear elevator to get stress.
Disperse and grind aid additive are as follows: take sodium tripolyphosphate, triisopropanolamine by any mass ratio mix to get.
Surfactant additive are as follows: take neopelex 4:2 in mass ratio that fatty alcohol polyoxyethylene ether is added mixed
Close to get.
Foaming additive are as follows: take surfactant additive 5:3 in mass ratio that triethanolamine is added, be stirred in 35 DEG C
45min obtains mixture a, take mixture a 6:2:5 in mass ratio be added hydroxyethyl cellulose, carbomer 940 mixing to get.
A kind of preparation method of water-resistant type building mortar plasticizer, includes the following steps: to take diminishing additive in mass ratio
Ammonium persulfate is added in 125:2, adds the methylpropene sodium sulfonate of diminishing additive quality 4%, is warming up to 65 DEG C of heat preservation 65min,
It is cooled to room temperature, obtains cooled material, take cooled material 90:5 in mass ratio that sodium hydroxide is added, be stirred 30min, must be stirred
Object a takes 17 parts of stirring mixture a, 25 parts of stress shearing elevators, 5 parts of disperse and grind aid additives, 4 parts of hairs according to the mass fraction
Additive is steeped, is stirred 40min to get water-resistant type building mortar plasticizer.
Embodiment 3
Diminishing additive the preparation method comprises the following steps: take allyl polyethenoxy ether 5:15 in mass ratio that water is added, it is mixed in 50 DEG C of stirrings
40min is closed, mixture is obtained, according to the mass fraction, takes 10 parts of acrylic acid, 5 parts of hydroxypropyl acrylates, 6 parts of hydroxypropyl acrylates, 15
Part mixture, is stirred 30min in 60 DEG C to get diminishing additive.
Activated monomer are as follows: di-n-butylamine.
Starch raw material are as follows: take starch raw material 10:5 in mass ratio be added hydroxypropyl PASELLI EASYGEL mixing to get.
Stress shear elevator the preparation method comprises the following steps:
(1) it takes epoxychloropropane 3:20 in mass ratio that deionized water is added, 30min is stirred in 4 DEG C, epoxychloropropane is added dropwise
The activated monomer of quality 90% is stirred for 24 hours in 15 DEG C, obtains stirring mixture, and stirring mixture 5:150 in mass ratio is taken to add
Enter the sodium hydroxide solution that mass fraction is 40%, is stirred 40min in 20 DEG C, obtains mixed liquor, take mixed liquor in mass ratio
Water is added in 10:5, stands 40min, takes upper liquid to be evaporated under reduced pressure, obtain vacuum distillation object；
(2) it takes starch raw material 3:10 in mass ratio that deionized water is added, 50min is stirred in 60 DEG C, starch raw material matter is added
The sodium hydroxide solution that the mass fraction of amount 40% is 40%, is stirred 60min in 70 DEG C, then starch raw material quality 60% is added dropwise
Vacuum distillation object, be warming up to 90 DEG C and be stirred 12h, be cooled to room temperature, adjust pH to 7, obtain cooled material, take cooled material by matter
Acetone is added than 30:7 in amount, and filtering takes filter residue and drying to shear elevator to get stress.
Disperse and grind aid additive are as follows: take glycerine, diethylene glycol, ethylene glycol by any mass ratio mix to get.
Surfactant additive are as follows: take neopelex 5:3 in mass ratio that fatty alcohol polyoxyethylene ether is added mixed
Close to get.
Foaming additive are as follows: take surfactant additive mass ratio 7:5 that triethanolamine is added, be stirred in 40 DEG C
60min obtains mixture a, take mixture a 9:3:7 in mass ratio be added hydroxyethyl cellulose, carbomer 940 mixing to get.
A kind of preparation method of water-resistant type building mortar plasticizer, includes the following steps: to take diminishing additive in mass ratio
Ammonium persulfate is added in 150:3, adds the methylpropene sodium sulfonate of diminishing additive quality 5%, is warming up to 70 DEG C of heat preservation 70min,
It is cooled to room temperature, obtains cooled material, take cooled material 100:7 in mass ratio that sodium hydroxide is added, be stirred 40min, must stir mixed
Object a is closed, according to the mass fraction, takes 20 parts of stirring mixture a, 30 parts of stress shearing elevators, 7 parts of disperse and grind aid additives, 6 parts
Foaming additive is stirred 50min to get water-resistant type building mortar plasticizer.
Comparative example 1: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking diminishing additive.
Comparative example 2: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking stress shearing elevator.
Comparative example 3: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking disperse and grind aid additive.
Comparative example 4: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking foaming additive.
Comparative example 5: the water-resistant type building mortar plasticizer of Taizhou City company production.
Embodiment is surveyed with water-resistant type building mortar plasticizer obtained by comparative example according to Q/TJC01-2001SJB standard
Examination, test result are as shown in table 1.
Table 1:
In conclusion the water-resistant type building mortar plasticizer water resistant barrier performance that the present invention is prepared is preferable.Compared to commercially available
Product effect is more preferable, is worth promoting.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of water-resistant type water-resistant type building mortar plasticizer, which is characterized in that promoted including diminishing additive, stress shearing
Agent, disperse and grind aid additive, foaming additive.
2. water-resistant type building mortar plasticizer according to claim 1, which is characterized in that the preparation of the diminishing additive
Method are as follows: take allyl polyethenoxy ether 2 ~ 5:10 in mass ratio ~ 15 that water is added and be stirred, mixture is obtained, by mass fraction
Meter, takes 5 ~ 10 parts of acrylic acid, 2 ~ 5 parts of hydroxypropyl acrylates, 3 ~ 6 parts of hydroxypropyl acrylates, 5 ~ 15 parts of mixtures to be stirred, i.e.,
Obtain diminishing additive.
3. water-resistant type building mortar plasticizer according to claim 1, which is characterized in that the stress shearing elevator
The preparation method comprises the following steps:
(1) it takes epoxychloropropane 1 ~ 3:10 in mass ratio ~ 20 that deionized water is added to be stirred, epoxychloropropane quality 70 is added dropwise
~ 90% activated monomer, is stirred, and obtains stirring mixture, takes stirring mixture 3 ~ 5:100 in mass ratio ~ 150 that hydrogen-oxygen is added
Change sodium solution to be stirred, obtain mixed liquor, take mixed liquor 5 ~ 10:2 in mass ratio ~ 5 that water is added, stand, upper liquid decompression is taken to steam
It evaporates, obtains vacuum distillation object；
(2) it takes starch raw material 1 ~ 3:7 in mass ratio ~ 10 that deionized water is added to be stirred, starch raw material quality 30 ~ 40% is added
Sodium hydroxide solution be stirred, then the vacuum distillation object of starch raw material quality 30 ~ 60% is added dropwise, is stirred, is cooled to room
Temperature adjusts pH to 6.8 ~ 7, obtains cooled material, takes cooled material 20 ~ 30:3 in mass ratio ~ 7 that acetone is added, and filtering takes filter residue and drying,
Elevator is sheared up to stress.
4. water-resistant type building mortar plasticizer according to claim 3, which is characterized in that activity is single in the step (1)
Body are as follows: take dicyclohexyl amine, diisopropanolamine (DIPA), di-n-butylamine, di-n-propylamine, two n-octyl amines, any one in diethylamine to get.
5. water-resistant type building mortar plasticizer according to claim 3, which is characterized in that the starch in the step (1)
Raw material are as follows: extracting corn starch 5 ~ 10:2 in mass ratio ~ 5 be added hydroxypropyl PASELLI EASYGEL mixing to get.
6. water-resistant type building mortar plasticizer according to claim 1, which is characterized in that the disperse and grind aid additive
Are as follows: take calgon, odium stearate, sodium tripolyphosphate, triisopropanolamine, glycerine, diethylene glycol, any one in ethylene glycol
Kind or it is any it is several by any mass ratio mix to get.
7. water-resistant type building mortar plasticizer according to claim 1, which is characterized in that the foaming additive are as follows: take
Surfactant additive 3 ~ 7:2 in mass ratio ~ 5 is added triethanolamine and is stirred, and obtains mixture a, takes mixture a in mass ratio
3 ~ 9:1 ~ 3:3 ~ 7 be added hydroxyethyl cellulose, carbomer 940 mixing to get.
8. water-resistant type building mortar plasticizer according to claim 7, which is characterized in that the surfactant additive
Are as follows: take neopelex 3 ~ 5:1 in mass ratio ~ 3 be added fatty alcohol polyoxyethylene ether mixing to get.
9. a kind of preparation method of the water-resistant type building mortar plasticizer as described in claim 1 ~ 8 any one, feature exist
In the preparation method includes the following steps: to take diminishing additive 100 ~ 150:1 in mass ratio ~ 3 that ammonium persulfate is added, and adds
The methylpropene sodium sulfonate of diminishing additive quality 3 ~ 5% is warming up to 60 ~ 70 DEG C of heat preservations, is cooled to room temperature, obtains cooled material, take cold
But object 80 ~ 100:3 in mass ratio ~ 7 is added sodium hydroxide and is stirred, and must stir mixture a, according to the mass fraction, take 15 ~ 20
Part stirring mixture a, 20 ~ 30 parts of stress shearing elevators, 3 ~ 7 parts of disperse and grind aid additives, 2 ~ 6 parts of foaming additives stirrings are mixed
It closes to get water-resistant type building mortar plasticizer.
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| CN112794671A (en) * | 2021-02-18 | 2021-05-14 | 王允刚 | Preparation process of concrete admixture |
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Application publication date: 20190614 |