CN101318832A - Concrete surface protecting material and method of manufacturing the same - Google Patents

Concrete surface protecting material and method of manufacturing the same Download PDF

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Publication number
CN101318832A
CN101318832A CNA2008100484875A CN200810048487A CN101318832A CN 101318832 A CN101318832 A CN 101318832A CN A2008100484875 A CNA2008100484875 A CN A2008100484875A CN 200810048487 A CN200810048487 A CN 200810048487A CN 101318832 A CN101318832 A CN 101318832A
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concrete surface
surface protecting
protecting material
component
concrete
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CN101318832B (en
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邹涛
韩炜
李珍
汪在芹
魏涛
邵小妹
蔡胜华
李晓鄂
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Changjiang River Scientific Research Institute Changjiang Water Resources Commission
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Changjiang River Scientific Research Institute Changjiang Water Resources Commission
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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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds
    • C04B41/483—Polyacrylates
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/2038—Resistance against physical degradation
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/26—Corrosion of reinforcement resistance

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

Concrete surface protection material consists of a component A and a component B. The component A comprises poly-aspartate, inorganic nano material, a silane coupler and a reactive diluent. The component B comprises a curative agent. The material overcomes the concrete defects of bad mechanical property, poor capacity of bearing temperature variation, wetting and drying alternation, and freezing and thawing cycle, vulnerability to damage, etc. The concrete surface protection material is easy in construction and convenient in secondary repair with super ageing resistance and excellent mechanical property. The material can not only meet the need of concrete surface protection, but also serve as a metal corrosion prevention material. The invention also discloses a preparation method for the concrete surface protection material.

Description

Concrete surface protecting material and preparation method thereof
Technical field
The present invention relates to a kind of concrete surface protecting material, the invention still further relates to the preparation method of this concrete surface protecting material.
Background technology
Allow Three Gorges Projects and the big storehouse of other high dam engineering can life-time service, do not taking place the volume stability incidents after using over a long time except being used to build the various starting material on dam and mixing and stirring finished product, importantly concrete no longer destroys.Concrete destruction always begins inside expansion from the surface, the outside surface of concrete dam is all wanted withstand temp variation, current scour, alternation of wetting and drying, all tests of freeze-thaw cycle, thereby constantly weathering, degrade, and the carbonization on Steel Concrete top layer is progressively developed, finally jeopardize dam safety.In order to prevent to influence dam work-ing life because of concrete destruction; must carry out correct design to engineering; ensure outstanding construction quality, also need the engineering concrete is carried out special protection (pasting with special protective layer at privileged sites) and (find that surface go wrong on-call maintenance reinforce) safeguarded in meticulous inspection.China's more than 80,000 dam of having built together at present is the maximum country of dam in the world, and large-scale dam accounts for 45% of whole world sum.The Yalongjiang River of State Council approved is built the huge power station of silk screen in addition, the Xi Luodu in Jinsha jiang River, to tame dam engineering, and the voe engineering in the Lancang River, the waterfall ditch engineering in Dadu River is also all in building nervously.Existed now in these Hydraulic and Hydro-Power Engineerings and certainly existed in the future concrete endurance issues, As time goes on, its will inevitably have influence on the Hydraulic and Hydro-Power Engineering function normally, efficiently the performance, this not only can produce influence greatly to flood control safety, water conservancy shipping, the electric power energy of country, more may bring immeasurable loss to national economy, the Study on durability that therefore solves concrete for hydraulic structure is the task of top priority.
By a large amount of investigation and analysis, domestic case history and the research that there is no relevant concrete for hydraulic structure surface protection problem at present, the external report that also rarely has associated problem research and solution.
Because the outside surface of concrete for hydraulic structure is generally wanted withstand temp variation, current scour, alternation of wetting and drying, all tests of freeze-thaw cycle; thereby constantly weathering, degrade, the carbonization on Steel Concrete top layer; so protecting materials not only should have superpower ageing resistance; also will possess outstanding mechanical property simultaneously, so the research and development of material are difficult relatively.Macromolecular material is varied, but has both had superpower ageing resistance, and the macromolecular material that also possesses outstanding mechanical property simultaneously is less relatively.
Summary of the invention
First purpose of the present invention provides a kind of concrete surface protecting material.It not only has ageing resistance but also have outstanding mechanical property, and its ageing resistance can the withstand temp variation, alternation of wetting and drying, freeze-thaw cycle, and its outstanding mechanical property opposing current scour, thereby the protection concrete exempts from destruction.
Second purpose of the present invention provide above-mentioned this concrete surface protecting material the preparation method.
Concrete surface protecting material of the present invention is that the contriver sums up out through the contrast screening by a large amount of experiments.At first react the preparation polyaspartate with two functional group's primary amine and maleic acid ester or fumarate.In polyaspartate, add inorganic nano material, silane coupling agent and reactive thinner then, stir, as the A component of concrete surface protecting material.Choose solidifying agent with different structure B component as concrete surface protecting material.
Concrete surface protecting material, it is made up of A component and B component, it is characterized in that described A component comprises polyaspartate, inorganic nano material, silane coupling agent and reactive thinner, and described B component is a solidifying agent.
In technique scheme, the mass parts content of described feed composition is: 60～120 parts of polyaspartates, 1～50 part of inorganic nano material, 0.001～10 part of silane coupling agent, 5～100 parts of reactive thinners, 30～250 parts in solidifying agent.
In technique scheme, described polyaspartate reacts with two functional group's primary amine and maleic acid ester and makes, and the preparation method is: 1. 40～100 part of two functional group's primary amine joined in the reactor; 2. slowly add 40～100 parts of maleic acid esters or fumarate while stirring, and maintain the temperature at about 30-40 ℃; 3. vacuumize, make reacting kettle inner pressure be-0.1MPa, charge into nitrogen then in reactor, making reacting kettle inner pressure is zero, so operates 2～3 times; 4. continuation is stirred, and is warming up to 90～100 ℃, reacts to obtain polyaspartate in 8-18 hour.
In technique scheme, described two functional group's primary amine are one or more in following two functional group's primary amine: 1. low-molecular-weight two functional group's primary amine: hexanediamine, isophorone diamine, dicyclohexyl methyl hydride diamines, 3,3 '-dimethyl 4,4 '-dicyclohexyl methyl hydride diamines etc.; 2. two functional group's polyetheramines comprise polypropylene glycol diamine or polyethylene glycol diamines: polypropylene glycol diamine (molecular weight 230), polypropylene glycol diamine (molecular weight 400), polypropylene glycol diamine (molecular weight 2000), polypropylene glycol diamine (molecular weight 4000), polyethylene glycol diamines (molecular weight 148), polyethylene glycol diamines (molecular weight 192), polyethylene glycol diamines (molecular weight 600), polyethylene glycol diamines (molecular weight 900), polyethylene glycol diamines (molecular weight 2000); 3. two functional group's heterocyclic diamines: 4,7-dioxadecane-1,10-diamines, 4,9-two oxa-dodecanes-1,12-diamines, 4,7,10-trioxa three decane-1,13-diamines.
In technique scheme, described solidifying agent is multiple solidifying agent with different structure, described solidifying agent is tolylene diisocyanate, polymeric polyisocyanate, polyisocyanates, sec.-propyl vulcabond, 1, the uniform mixture under one or more room temperatures in 6-hexamethylene diisocyanate, PPDI, xylylene diisocyanate, isophorone-vulcabond or the diphenylmethanediisocyanate.
In technique scheme, described inorganic nano material is one or more in inorganic nanometer oxide, inorganic nano carbonate or the inorganic nano silicate.
In technique scheme, described silane coupling agent is one or more among KH550 (γ-An Bingjisanyiyangjiguiwan), KH570 (γ-methacryloxypropyl trimethoxy silane), KH151 (vinyltriethoxysilane), KH171 (vinyltrimethoxy silane), the KH792 (N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan).
In technique scheme, described reactive thinner is one or more uniform mixtures at room temperature in ethanol, ethylene glycol, propylene glycol, polyoxyethylene glycol, the polypropylene glycol.
The preparation method of concrete surface protecting material is characterized in that it comprises the steps: to react with two functional group's primary amine and maleic acid ester or fumarate, obtains polyaspartate.In polyaspartate, add inorganic nano material, silane coupling agent and reactive thinner then, stir, as the A component of concrete surface protecting material.Choose solidifying agent with different structure B component as concrete surface protecting material.
1., it had both had superpower ageing resistance, also possessed outstanding mechanical property simultaneously concrete surface protecting material of the present invention has following advantage:.Because the effect of inorganic nano material and silane coupling agent, the weather resistance of material and be further enhanced with concrete tack.2., abandoned traditional non-activated thinner such as toluene, dimethylbenzene and acetone etc., improved solid content, reduced VOC, more help environmental protection.3., the adding of reactive thinner, reduced the viscosity of material, for construction is provided convenience.4., utilize inorganic nano material and organic poly aspartic acid ester material compound, prepared an a kind of inorganic organic composite material of novel environment friendly, help improving the weather resistance of poly aspartic acid ester material.5., by adding silane coupling agent, as the bridge between inorganic materials and organic materials, strengthened the reactive force between matrix material and the concrete, further improved the water resistance of matrix material simultaneously.6., the secondary reparation is easily constructed, is convenient to concrete surface protecting material of the present invention.
The concrete surface protecting material of the present invention's preparation not only can satisfy the needs of concrete surface protecting, also can be used as the anti-corrosion of metal material.
The material construction technology
1, concrete surface is handled: it is significantly damaged to repair good surface before using, and hollowing, phenomenon such as loose must not be arranged.Should remove dust that concrete surface exists, spot etc. before the construction, wash with water blast gun then, make its cleaning surfaces.
2, concrete surface protecting material construction: A, the B component of concrete surface protecting material are mixed by a certain percentage and stir.In concrete surface brushing, roller coating or spraying, every square meter is coated with the 0.8-1 kilogram.
Precaution:
A. the concrete surface protecting material engineering time that once prepares is within 2 hours;
B. concrete surface protecting material suits to construct under 5～40 ℃ envrionment temperature.Exceed this scope as envrionment temperature, should adjust material and proportioning according to practical situation;
C. meet cold wave or sleet and should stop construction, should the take insulation or the anti-rainwater of having constructed wash away measure.
3, maintenance: the concrete surface protecting material surface gets final product natural curing after touching and doing, and can come into operation after 7 days.
Description of drawings
Fig. 1 is a photo after the concrete sample freeze thawing 150 times of not brushing concrete surface protecting material.
Fig. 2 is photo after the concrete sample freeze thawing of brushing concrete surface protecting material 150 times.
Fig. 3 is 28 days carbonization tests of concrete sample photo as a result of not brushing concrete surface protecting material.
Fig. 4 is 28 days carbonization tests of the concrete sample of brushing concrete surface protecting material photo as a result.
Fig. 5 is the concrete sample anti-impact mill test-results photo of not brushing concrete surface protecting material.
Fig. 6 is the concrete sample anti-impact mill test-results photo of brushing concrete surface protecting material.
Embodiment
Describe performance of the present invention in detail below in conjunction with accompanying drawing, but they do not constitute limitation of the invention, only do for example.Simultaneously by illustrating that advantage of the present invention will become clear more and understanding easily.
Concrete surface protecting material of the present invention; it is made up of A component and B component; it is characterized in that described A component comprises polyaspartate, inorganic nano material, silane coupling agent, reactive thinner; the mass parts content that described B component is the described feed composition of solidifying agent is: polyaspartate 60-120 part; 1～50 part of inorganic nano material; 0.001～10 part of silane coupling agent, 5～100 parts of reactive thinners, 30～250 parts in solidifying agent.The preparation method of described polyaspartate comprises the steps: 1. 40～100 part of two functional group's primary amine to be joined in the reactor; 2. slowly add 40～100 parts of maleic acid esters or fumarate while stirring, and maintain the temperature at about 30-40 ℃; 3. vacuumize, make reacting kettle inner pressure be-0.1MPa, charge into nitrogen then in reactor, making reacting kettle inner pressure is zero, so operates 2～3 times; 4. continuation is stirred, and is warming up to 90～100 ℃, reacts to obtain polyaspartate in 8-18 hour.Described two functional group's primary amine are one or more in following two functional group's primary amine: 1. low-molecular-weight two functional group's primary amine: hexanediamine, isophorone diamine, dicyclohexyl methyl hydride diamines or 3,3 '-dimethyl 4,4 '-dicyclohexyl methyl hydride diamines; 2. two functional group's polyetheramines: polypropylene glycol diamine or polyethylene glycol diamines; 3. two functional group's heterocyclic diamines: 4,7-dioxadecane-1,10-diamines, 4,9-two oxa-dodecanes-1,12-diamines or 4,7,10-trioxa three decane-1,13-diamines.The maleic acid ester of described preparation polyaspartate is one or more in ethyl maleate, dimethyl maleate, dipropyl maleate, dibutyl maleinate or the toxilic acid methyl-propyl ester.Described solidifying agent is multiple solidifying agent with different structure, described solidifying agent is tolylene diisocyanate, polymeric polyisocyanate, polyisocyanates, sec.-propyl vulcabond, 1, the uniform mixture at room temperature of one or more in 6-hexamethylene diisocyanate, PPDI, xylylene diisocyanate, isophorone-vulcabond or the diphenylmethanediisocyanate.Described inorganic nano material is one or more in inorganic nanometer oxide, inorganic nano carbonate or the inorganic nano silicate.Described silane coupling agent is one or more in γ-An Bingjisanyiyangjiguiwan, γ-methacryloxypropyl trimethoxy silane, vinyltriethoxysilane, vinyltrimethoxy silane or the N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan.Described reactive thinner is one or more uniform mixtures at room temperature in ethanol, ethylene glycol, propylene glycol, polyoxyethylene glycol or the polypropylene glycol.
The preparation method of concrete surface protecting material, it is characterized in that it comprises the steps: to react with two functional group's primary amine and maleic acid ester or fumarate, obtain polyaspartate, in polyaspartate, add inorganic nano material, silane coupling agent and reactive thinner then, stir, as the A component of concrete surface protecting material; Choose solidifying agent with different structure B component as concrete surface protecting material.
Concrete durability performance experiment behind the brushing concrete surface protecting material
Antifreezing test
For the relatively brushing and the concrete antifreezing of not brushing concrete surface protecting material melt circulation ability, selected concrete should have certain intensity, and the freezing tolerance of normal concrete is lower again simultaneously, and the concrete mix of selecting for use sees Table 1.
Table 1 normal concrete proportioning
Figure A20081004848700091
Annotate *: the actual used water amount is that every cubic meter of concrete water consumption is removed the water yield in the admixture solution.
Concrete raw material that this test is adopted is the Qingjian River, Hubei Shui Buya hydro project toe board, barrier sheet first phase construction starting material, has prepared the concrete test specimen as a comparison that hangs down freeze proof label by adjusting the air entrapment agent volume.The anti-freezing property test of concrete sheath coat is undertaken by the method for " concrete for hydraulic structure testing regulation " DL/T5150-2001.Freezing and thawing test is carried out with the quick-freeze method, and the standard specimen of fast freeze-thaw test is the prism of 100mm * 100mm * 400mm, and the concrete substrate maintenance that will hang down freeze proof label (F50) is to 28d length of time., clean then each face bristle with wire brush, remove ponding, make test specimen be in saturated surface dry condition.With the even brushing concrete surface protecting material of brush to treated side.After being coated with test specimen put into standard curing room to regulation length of time, the coating test specimen is maintenance 7d at least.
4d will not brush and will be coated with the test specimen to be measured that is brushed with concrete surface protecting material to be immersed in temperature be in 15 ℃～20 ℃ the water before freezing and thawing test; test initial dynamic modulus of elasticity of Pretesting and weight; each freeze-thaw cycle should be finished in 2～4h; the time that wherein is used to melt must not be less than 1/4 of the whole freeze thawing time, does dynamic modulus of elasticity and weight test every 50 circulations.The core temperature of test specimen is-15 ℃～-19 ℃ when freezing, during thawing, 6 ℃～10 ℃ of the core temperatures of test specimen, test specimen freeze with thaw process in all be in full flooded condition (that is full water state).
Carbonization test
The carbonization test of concrete sheath coat is undertaken by the method for " concrete for hydraulic structure testing regulation " DL/T5150-2001.This carbonization test adopts cube specimen; normal curing is after 10 days behind the specimen molding; the external coating concrete surface protecting material continues maintenance, and 2d takes out coating test specimen and contrast test specimen from curing room before test, dries by the fire 48h then under 60 ℃ ± 2 ℃ temperature.Test specimen after oven dry handled requires the surface with the paraffin sealing, carries out the carbonization test of 28d in the carbonization case respectively, and carbonization is during to 28d, the taking-up test specimen, and the type that breaks is to measure its carbonation depth.
Anti-impact mill test (steel ball method under water)
The anti-impact mill test of concrete sheath coat is undertaken by the method for " concrete for hydraulic structure testing regulation " DL/T5150-2001.The disk test specimen is adopted in this anti-impact mill test, and normal curing is after 28 days behind the specimen molding, and the external coating concrete surface protecting material continues more than the maintenance 7d.
2d will not brush and will be coated with the test specimen to be measured that is brushed with concrete surface protecting material to be immersed in temperature be in 15 ℃～20 ℃ the water, to test the Pretesting initial weight before anti-impact mill test.Accumulative total is dashed mill 72h, weighs.
Test-results
Antifreezing test
Do not brush and be coated with the concrete sample freezing and thawing test that is brushed with concrete surface protecting material and the results are shown in Table 1.
Table 2 is not brushed and the concrete sample antifreezing test result of brushing concrete surface protecting material
Figure A20081004848700111
Find that through the anti-freezing property test the concrete of brushing concrete surface protecting material is not behind 150 freeze-thaw cycle of experience, test specimen is damaged by frost, and relative dynamic elastic modulus can't be measured; And the concrete sample of brushing concrete surface protecting material is behind 150 freeze-thaw cycle of experience, and test specimen relative dynamic elastic modulus and weight are slightly lost.Fig. 1 is that brushing concrete surface protecting material and Fig. 2 are not the photo after the concrete sample freeze thawing of brushing concrete surface protecting material 150 times.Concrete antifreezing test explanation concrete surface protecting material can significantly improve concrete freeze-thaw-ability.
Carbonization test
The concrete sample 28d carbonization test of the concrete sample of brushing concrete surface protecting material and brushing concrete surface protecting material not the results are shown in Table 3 and Fig. 3, Fig. 4.
Table 3 concrete surface protecting material carbonization test result (carbonation depth: mm)
Test the length of time Blank test specimen The brushing test specimen
28d 8.5 0
From table 3 and Fig. 3, Fig. 4 as can be seen, the blank concrete sample 28d carbonation depth of brushing concrete surface protecting material has not reached 8.5mm; But the concrete sample carbonization of external coating concrete surface protecting material is during to 28d, and carbonation depth is 0 still, illustrates that concrete surface protecting material can significantly increase concrete anti-carbonization ability.
The test of anti-impact mill
The test specimen anti-impact of the test specimen of brushing concrete surface protecting material and brushing concrete surface protecting material mill test-results does not see Table 4 and Fig. 5, Fig. 6.
Table 4 is not brushed and the concrete sample anti-impact of brushing concrete surface protecting material is ground test-results
Test the length of time Blank test specimen The brushing test specimen
72h 1.5 kg ≤0.01 kg
From table 4 and Fig. 4, Fig. 5 as can be seen, the blank concrete sample of brushing concrete surface protecting material dashes mill 72h mass loss and has not reached 1.5kg; But when external coating had the concrete sample of concrete surface protecting material to dash mill 72h, mass loss illustrated that less than 0.01kg concrete surface protecting material can significantly improve concrete anti-impact mill ability.
Embodiment 1:
The preparation of concrete surface protecting material CKT-A.
With 40 part 3,3 '-dimethyl 4,4 '-dicyclohexyl methyl hydride diamines joins in the reactor, slowly adds 57.8 parts of ethyl maleates while stirring, and maintains the temperature at about 30 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 90 ℃, obtain polyaspartate about reaction 12h.
Choose solidifying agent 2,4-, 2,6-tolylene diisocyanate mixture (TDI) and diphenylmethanediisocyanate (MDI) are in even with the stirrer thorough mixing under 1: 10 the ratio room temperature.
Choose reactive thinner ethylene glycol and propylene glycol in even under 1: 10 the ratio room temperature with the stirrer thorough mixing.
In 60 parts of polyaspartates, add 15 parts of nanometer SiO 2, 2 portions of silane coupling agent KH550 and 20 portions of reactive thinners, stir (A component).Add 60 parts of solidifying agent then and be cured reaction (B component).
The fundamental property of concrete surface protecting material CKT-A is as follows:
Figure A20081004848700131
Embodiment 2:
The preparation of concrete surface protecting material CKT-B.
58.4 parts of dicyclohexyl methyl hydride diamines are joined in the reactor, slowly add 80 parts of dimethyl maleates while stirring, and maintain the temperature at about 40 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 100 ℃, obtain polyaspartate about reaction 10h.
Choose solidifying agent isophorone-vulcabond (IPDI) and 1,6-hexamethylene diisocyanate (HDI) is in even with the stirrer thorough mixing under 10: 1 the ratio room temperature.
Choose reactive thinner ethylene glycol and polyoxyethylene glycol in even under 10: 1 the ratio room temperature with the stirrer thorough mixing.
In 80 parts of polyaspartates, add 20 parts of nanometer CaCO 3, 2 portions of silane coupling agent KH151 and 50 portions of reactive thinners, stir (A component).Add 160 parts of solidifying agent then and be cured reaction (B component).
The fundamental property of concrete surface protecting material CKT-B is as follows:
Figure A20081004848700141
Figure A20081004848700151
Embodiment 3
The preparation of concrete surface protecting material CKT-C.
78.9 parts of polypropylene glycol diamine (molecular weight 400) are joined in the reactor, slowly add 90 parts of dibutyl maleinates while stirring, and maintain the temperature at about 35 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 95 ℃, obtain polyaspartate about reaction 14h.
Choose solidifying agent PPDI and xylylene diisocyanate in even under 5: 5 the ratio room temperature with the stirrer thorough mixing.
Choose reactive thinner propylene glycol and polypropylene glycol in even under 5: 5 the ratio room temperature with the stirrer thorough mixing.
In 90 parts of polyaspartates, add 15 parts of nanometer MgSiO 3, 1.5 portions of silane coupling agent KH792 and 20 portions of reactive thinners, stir (A component).Add 40 parts of solidifying agent then and be cured reaction (B component).
The fundamental property of concrete surface protecting material CKT-C is as follows:
Figure A20081004848700161
Embodiment 4
The preparation of concrete surface protecting material CKT-D.
25 parts of isophorone diamines and 25 parts of dicyclohexyl methyl hydride diamines are joined in the reactor, slowly add 76.6 parts of dimethyl fumarates while stirring, and maintain the temperature at about 30 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 100 ℃, obtain polyaspartate about reaction 8h.
Choose solidifying agent polymeric polyisocyanate and polyisocyanates in even under 2: 8 the ratio room temperature with the stirrer thorough mixing.
Choose reactive thinner ethylene glycol and ethanol in even under 3: 7 the ratio room temperature with the stirrer thorough mixing.
In 70 parts of polyaspartates, add nanometer SiO 2And CaCO 3Totally 1 part, 0.001 part silane coupling agent γ-An Bingjisanyiyangjiguiwan and 5 portions of reactive thinners stir (A component).Add 30 parts of solidifying agent then and be cured reaction (B component).
Embodiment 5
The preparation of concrete surface protecting material CKT-E.
With polyethylene glycol diamines and 4,9-two oxa-dodecanes-1,12-diamines totally 100 parts join in the reactor, slowly add totally 100 parts of dibutyl maleinate and ethyl maleates while stirring, and maintain the temperature at about 40 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 100 ℃, obtain polyaspartate about reaction 18h.
Choose solidifying agent sec.-propyl vulcabond and 1, the 6-hexamethylene diisocyanate is in even with the stirrer thorough mixing under 4: 6 the ratio room temperature.
Choose reactive thinner ethanol, ethylene glycol and propylene glycol in even under 2: 3: 5 the ratio room temperature with the stirrer thorough mixing.
In 100 parts of polyaspartates, add 30 parts of nanometer SiO 2, 1 portion of γ-methacryloxypropyl trimethoxy silane and 30 portions of reactive thinners, stir (A component).Add 200 parts of solidifying agent then and be cured reaction (B component).
Embodiment 6
The preparation of concrete surface protecting material CKT-F.
With 4,7,10-trioxa three decane-1,13-diamines and polypropylene glycol diamine totally 50 parts join in the reactor, slowly add totally 50 parts of dibutyl fumarate and DEF while stirring, and maintain the temperature at about 35 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 95 ℃, obtain polyaspartate about reaction 16h.
Choose solidifying agent PPDI and xylylene diisocyanate in even under 4: 6 the ratio room temperature with the stirrer thorough mixing.
Choose reactive thinner propylene glycol and polyoxyethylene glycol in even under 8: 2 the ratio room temperature with the stirrer thorough mixing.
In 70 parts of polyaspartates, add nanometer MgSiO 3And CaCO 3Totally 20 parts, 2 parts silane coupling agent KH550 and 20 portions of reactive thinners stir (A component).Add 80 parts of solidifying agent then and be cured reaction (B component).
Embodiment 7
The preparation of concrete surface protecting material CKT-G.
With 4,7-dioxadecane-1,10-diamines, dicyclohexyl methyl hydride diamines and polyethylene glycol diamines totally 60 parts join in the reactor, slowly add totally 60 parts of ethyl maleate, dimethyl maleate, dipropyl maleate and dibutyl maleinates while stirring, and maintain the temperature at about 33 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 92 ℃, obtain polyaspartate about reaction 17h.
Choose curing agent toluene vulcabond, polymeric polyisocyanate, polyisocyanates, sec.-propyl vulcabond, 1,6-hexamethylene diisocyanate, PPDI, xylylene diisocyanate, isophorone-vulcabond and diphenylmethanediisocyanate were in 1: 1: 1: 1: 1: 1: even with the stirrer thorough mixing under 1: 1: 1 the ratio room temperature.
Choose reactive thinner ethanol, ethylene glycol, propylene glycol, polyoxyethylene glycol and polypropylene glycol in 1: 1: 1: even under 1: 1 the ratio room temperature with the stirrer thorough mixing.
In 80 parts of polyaspartates, add nanometer SiO 2, MgSiO 3And CaCO 3Totally 20 parts, γ-An Bingjisanyiyangjiguiwan, γ-methacryloxypropyl trimethoxy silane, vinyltriethoxysilane, vinyltrimethoxy silane or N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan be totally 20 parts of totally 0.5 part and ethanol, ethylene glycol, propylene glycol, polyoxyethylene glycol and polypropylene glycols, stirs (A component).Add 80 parts of solidifying agent then and be cured reaction (B component).
Embodiment 8
The preparation of concrete surface protecting material CKT-H.
With hexanediamine, isophorone diamine, dicyclohexyl methyl hydride diamines or 3,3 '-dimethyl 4,4 '-dicyclohexyl methyl hydride diamines totally 70 parts join in the reactor, slowly add totally 70 parts of DEF, dimethyl fumarate, fumaric acid dipropyl and dibutyl fumarates while stirring, and maintain the temperature at about 30 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 90 ℃, obtain polyaspartate about reaction 16h.
Choose solidifying agent isophorone-vulcabond and diphenylmethanediisocyanate in even under 1: 10 the ratio room temperature with the stirrer thorough mixing.
Choose reactive thinner ethylene glycol and propylene glycol in even under 1: 10 the ratio room temperature with the stirrer thorough mixing.
In 90 parts of polyaspartates, add 40 parts of nanometer MgSiO 3, 1 portion of silane coupling agent KH550 and 20 portions of reactive thinners, stir (A component).Add 80 parts of solidifying agent then and be cured reaction (B component).
Embodiment 9
The preparation of concrete surface protecting material CKT-I.
With 80 part 3,3 '-dimethyl 4,4 '-dicyclohexyl methyl hydride diamines joins in the reactor, slowly adds 80 parts of ethyl maleates while stirring, and maintains the temperature at about 30 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 90 ℃, obtain polyaspartate about reaction 15h.
Choose solidifying agent 2,4-, 2,6-tolylene diisocyanate mixture (TDI) and diphenylmethanediisocyanate (MDI) are in even with the stirrer thorough mixing under 1: 10 the ratio room temperature.
Choose reactive thinner ethylene glycol and propylene glycol in even under 1: 10 the ratio room temperature with the stirrer thorough mixing.
In 100 parts of polyaspartates, add 30 parts of nanometer SiO 2, totally 5 parts of vinyltriethoxysilane and vinyltrimethoxy silanes, 20 portions of reactive thinners stir (A component).Add 80 parts of solidifying agent then and be cured reaction (B component).
Embodiment 10
The preparation of concrete surface protecting material CKT-J.
With 90 part 3,3 '-dimethyl 4,4 '-dicyclohexyl methyl hydride diamines joins in the reactor, slowly adds 90 parts of ethyl maleates while stirring, and maintains the temperature at about 30 ℃.Vacuumize, make the interior pressure of reactor be-0.1MPa, charge into nitrogen then in reactor, making the interior pressure of reactor is zero, so operates 2～3 times.Continue to stir, be warming up to 90 ℃, obtain polyaspartate about reaction 14h.
Choose solidifying agent 2,4-, 2,6-tolylene diisocyanate mixture (TDI) and diphenylmethanediisocyanate (MDI) are in even with the stirrer thorough mixing under 1: 10 the ratio room temperature.
Choose reactive thinner ethylene glycol and propylene glycol in even under 1: 10 the ratio room temperature with the stirrer thorough mixing.
In 110 parts of polyaspartates, add 10 parts of nanometer MgSiO 3, totally 2 parts of vinyltrimethoxy silane and N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwans, 20 portions of reactive thinners stir (A component).Add 80 parts of solidifying agent then and be cured reaction (B component).

Claims (9)

1, concrete surface protecting material, it is made up of A component and B component, it is characterized in that described A component comprises polyaspartate, inorganic nano material, silane coupling agent, reactive thinner, and described B component is a solidifying agent.
2, concrete surface protecting material according to claim 1; the mass parts content that it is characterized in that described feed composition is: polyaspartate 60-120 part, 1～50 part of inorganic nano material, 0.001～10 part of silane coupling agent; 5～100 parts of reactive thinners, 30～250 parts in solidifying agent.
3, concrete surface protecting material according to claim 1 and 2 is characterized in that the preparation method of described polyaspartate comprises the steps: 1. 40～100 part of two functional group's primary amine to be joined in the reactor; 2. slowly add 40～100 parts of maleic acid esters or fumarate while stirring, and maintain the temperature at about 30-40 ℃; 3. vacuumize, make reacting kettle inner pressure be-0.1MPa, charge into nitrogen then in reactor, making reacting kettle inner pressure is zero, so operates 2～3 times; 4. continuation is stirred, and is warming up to 90～100 ℃, reacts to obtain polyaspartate in 8-18 hour.
4, concrete surface protecting material according to claim 3, it is characterized in that described two functional group's primary amine are one or more in following two functional group's primary amine: 1. low-molecular-weight two functional group's primary amine: hexanediamine, isophorone diamine, dicyclohexyl methyl hydride diamines or 3,3 '-dimethyl 4,4 '-dicyclohexyl methyl hydride diamines; 2. two functional group's polyetheramines: polypropylene glycol diamine or polyethylene glycol diamines; 3. two functional group's heterocyclic diamines: 4,7-dioxadecane-1,10-diamines, 4,9-two oxa-dodecanes-1,12-diamines or 4,7,10-trioxa three decane-1,13-diamines.
5, concrete surface protecting material according to claim 1 and 2; it is characterized in that described solidifying agent is multiple solidifying agent with different structure; described solidifying agent is tolylene diisocyanate, polymeric polyisocyanate, polyisocyanates, sec.-propyl vulcabond, 1, the uniform mixture at room temperature of one or more in 6-hexamethylene diisocyanate, PPDI, xylylene diisocyanate, isophorone-vulcabond or the diphenylmethanediisocyanate.
6, concrete surface protecting material according to claim 1 and 2 is characterized in that described inorganic nano material is one or more in inorganic nanometer oxide, inorganic nano carbonate or the inorganic nano silicate.
7, concrete surface protecting material according to claim 1 and 2 is characterized in that described silane coupling agent is one or more in γ-An Bingjisanyiyangjiguiwan, γ-methacryloxypropyl trimethoxy silane, vinyltriethoxysilane, vinyltrimethoxy silane or the N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan.
8, concrete surface protecting material according to claim 1 and 2 is characterized in that described reactive thinner is one or more uniform mixtures at room temperature in ethanol, ethylene glycol, propylene glycol, polyoxyethylene glycol or the polypropylene glycol.
9, the preparation method of concrete surface protecting material, it is characterized in that it comprises the steps: to react with two functional group's primary amine and maleic acid ester or fumarate, obtain polyaspartate, in polyaspartate, add inorganic nano material, silane coupling agent and reactive thinner then, stir, as the A component of concrete surface protecting material; Choose solidifying agent with different structure B component as concrete surface protecting material.
CN 200810048487 2008-07-23 2008-07-23 Concrete surface protecting material and method of manufacturing the same Expired - Fee Related CN101318832B (en)

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CN102399091A (en) * 2010-09-07 2012-04-04 上海法赫桥梁隧道养护工程技术有限公司 Water-resistant salt-resistant concrete protecting agent and preparation method thereof
CN102898813A (en) * 2012-09-29 2013-01-30 长江水利委员会长江科学院 Hydraulic cavitation-resistant material and preparation method thereof
CN104387114A (en) * 2014-10-22 2015-03-04 武汉长江科创科技发展有限公司 Water-immune nanometer polyurea hydraulic concrete repairing material and preparation method thereof
CN109456684A (en) * 2018-11-14 2019-03-12 四川嘉宝莉涂料有限公司 A kind of Polyaspartic Polyurea protective coating, preparation method, application method and application with good corrosion resistance
CN109468037A (en) * 2018-11-12 2019-03-15 上海海隆赛能新材料有限公司 Cement-based penetrant type Polyaspartic Ester-Based Coatings
CN109486383A (en) * 2018-11-12 2019-03-19 上海海隆赛能新材料有限公司 High osmosis low prepared surface anticorrosive paint
CN110423452A (en) * 2019-08-02 2019-11-08 长安大学 A kind of road high-strength durable material for quickly repairing and preparation method
WO2020226962A1 (en) * 2019-05-06 2020-11-12 Covestro Llc Catalysis of polyaspartic coatings
CN115491113A (en) * 2022-09-19 2022-12-20 华南理工大学 Fast-seepage and fast-setting high polymer material and preparation method and application thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102399091A (en) * 2010-09-07 2012-04-04 上海法赫桥梁隧道养护工程技术有限公司 Water-resistant salt-resistant concrete protecting agent and preparation method thereof
CN102399091B (en) * 2010-09-07 2013-06-05 上海法赫桥梁隧道养护工程技术有限公司 Water-resistant salt-resistant concrete protecting agent and preparation method thereof
CN102898813A (en) * 2012-09-29 2013-01-30 长江水利委员会长江科学院 Hydraulic cavitation-resistant material and preparation method thereof
WO2014048264A1 (en) * 2012-09-29 2014-04-03 长江水利委员会长江科学院 Hydraulic cavitation-resistant material and preparation method therefor
CN104387114A (en) * 2014-10-22 2015-03-04 武汉长江科创科技发展有限公司 Water-immune nanometer polyurea hydraulic concrete repairing material and preparation method thereof
CN104387114B (en) * 2014-10-22 2016-07-20 武汉长江科创科技发展有限公司 Water immune nano polyureas concrete for hydraulic structure material for repairing and preparation method thereof
CN109468037A (en) * 2018-11-12 2019-03-15 上海海隆赛能新材料有限公司 Cement-based penetrant type Polyaspartic Ester-Based Coatings
CN109486383A (en) * 2018-11-12 2019-03-19 上海海隆赛能新材料有限公司 High osmosis low prepared surface anticorrosive paint
CN109456684A (en) * 2018-11-14 2019-03-12 四川嘉宝莉涂料有限公司 A kind of Polyaspartic Polyurea protective coating, preparation method, application method and application with good corrosion resistance
WO2020226962A1 (en) * 2019-05-06 2020-11-12 Covestro Llc Catalysis of polyaspartic coatings
CN110423452A (en) * 2019-08-02 2019-11-08 长安大学 A kind of road high-strength durable material for quickly repairing and preparation method
CN115491113A (en) * 2022-09-19 2022-12-20 华南理工大学 Fast-seepage and fast-setting high polymer material and preparation method and application thereof

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