CN105645835B - Boehmite sol type abrasion-proof concrete hardening sealant agent and preparation method thereof - Google Patents
Boehmite sol type abrasion-proof concrete hardening sealant agent and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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Abstract
The invention discloses a kind of boehmite sol type abrasion-proof concrete hardening sealant agent, it is made up of the composition of following weight percentage：Boehmite sol 30~60%, nano-particle 3~8%, silane coupler 5~10%, wax powder 1~5%, surfactant 0.1~0.5%, ethanol 5~11%；Surplus is deionized water.Silane coupler is tetraethyl orthosilicate, 3 aminopropyltriethoxywerene werenes, γ glycidyl ether oxygen propyl trimethoxy silicanes, γ (methacryloxypropyl) propyl trimethoxy silicane, double (trimethoxy-silylpropyl) amine, double (triethoxysilylpropyltetrasulfide) amine, 1,2 pairs of (trimethoxy silicon substrate) ethane etc..The invention also discloses the preparation method of above-mentioned boehmite sol type abrasion-proof concrete hardening sealant agent.
Description
Technical field
The invention belongs to building material field, and in particular to a kind of concrete seal hardener and preparation method thereof.
Background technology
At present, concrete seal hardener mainly has three class products on domestic and international market：
The first kind is the sodium base salt product using sodium metasilicate as main component, and it can improve concrete strength and wear-resisting
Property, but its pH value, easily in precipitations such as concrete surface formation alkaline matter, salts substances, not only influences ground often 12 or so
Face aesthetics, and cause ground hair to slide, have a strong impact on use.In addition, the metal ion of strong basicity is easily and in concrete
Plant ecology reacts, and produces the accessory substance of volumetric expansion, causes surface production fine cracks, or even crack, when serious over the ground
Level ground intensity damages, and triggers safety problem.
Second class is the potassium base product salt using potassium silicate as main component, and its performance nothing compared with sodium base salt significantly improves.
3rd class is the lithium base product salt using lithium metasilicate as main component, and this curing agent hardening sealant effect is preferable, can
The compression strength and wearability of mattess are greatly improved, the common fault that the accumulation of salt in the surface soil that can also avoid preceding two generations product from occurring turns white,
It is the research emphasis of this area.But the technology is mainly rested in American-European countries's hand, although there are some researchs in China, but industry
It is seldom to change product.As CN200910055825.2 is disclosed using lithium metasilicate as Main Ingredients and Appearance, magnesium fluosilicate, silane emulsion, propylene
Acid resin emulsion, paraffin and water are the curing agent preparation method of the second component.Application method is after the first component is used and dried
The second component is brushed again.The patented technology is mainly reacted using lithium metasilicate and concrete, plays humidification.Magnesium fluosilicate, silane
Emulsion plays certain hydrophobic effect, and emulsion acrylic resin, paraffin then play brightener.It is anti-lithium metasilicate hardening to be present in this method
Answer speed slow, the brightener term of validity such as paraffin is shorter, and the miscible effect of various ingredients is bad and the problems such as muddy occurs.In addition,
CN101618956A also describes a kind of aqueous ground hardening agent of bi-component and preparation method thereof, is to prepare the first component first
Lithium metasilicate solution is simultaneously squeegeed onto cement concrete surface, after its drying, brushes the using organic resin as main component
Two components, concrete finish just can be improved after drying maintenance 1-3d, reduce dust and produce.The invention fully utilizes lithium
Its closely knit induration is realized in base salt curing agent and the dual effect of organic resin curing agent, but its construction comparison of getting up is numb
It is tired, and due to being related to two components, it is inconvenient transporting and storing.
In addition to the inorganic hardening sealant agent of silicates, the nothing using Nano silica sol as main component had been risen again in recent years
Secret envelope curing agent, Ludox contain a large amount of silicon oxygen bonds, can be with Ca free in concrete2+And H2O forms the master of concrete
Strength materials afwillite (C-SH) is wanted, so as to improve concrete abrasion-resistant performance.As CN201010543000.8 discloses profit
With nano silicone gel permeation into concrete pore, under potassium metaaluminate catalytic action with calcium hydroxide and unhydrated cement
React, generate the gel of cross-linked structure, reduce concrete abrasion 45~60%.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of boehmite sol type abrasion-proof concrete hardening sealant agent and its
Preparation method.
In order to solve the above-mentioned technical problem, the present invention provides a kind of boehmite sol type abrasion-proof concrete hardening sealant agent,
It is made up of the composition of following weight percentage：Boehmite sol 30~60%, nano-particle 3~8%, silane coupler 5
~10%, wax powder 1~5%, surfactant 0.1~0.5%, ethanol 5~11%；Surplus is deionized water.
Improvement as the boehmite sol type abrasion-proof concrete hardening sealant agent of the present invention：
10~40nm of the boehmite sol particle diameter, pH value 3~5, solid content 20~50%；
The nano-particle is SiO2、Al2O3、ZnO、Si3N4At least one of (be one or more)；Particle diameter is：
20~60nm；
The silane coupler is tetraethyl orthosilicate, APTES, γ-glycidyl ether oxygen propyl
Trimethoxy silane, γ-(methacryloxypropyl) propyl trimethoxy silicane, double-(trimethoxy-silylpropyl) amine,
At least one of double (trimethoxy silicon substrate) ethane of double-(triethoxysilylpropyltetrasulfide) amine, 1,2- (are a kind of or more
Kind)；
The wax powder is polyethylene wax powder or polytetrafluoroethylene (PTFE) wax powder；
The surfactant is nonionic surfactant or anion surfactant.
Improvement as the boehmite sol type abrasion-proof concrete hardening sealant agent of the present invention：
Boehmite sol 10~20nm of particle diameter, pH value 3.5~4.5, solid content 20~40%；
The nano-particle is SiO2、Al2O3At least one of (i.e. one or two kinds of)；
The silane coupler is double-(trimethoxy-silylpropyl) amine, double-(triethoxysilylpropyltetrasulfide)
At least one of double (trimethoxy silicon substrate) ethane of amine, 1,2- (i.e. one or more)；
The wax powder is polytetrafluoroethylene (PTFE) wax powder；
The surfactant is APES (belonging to nonionic surfactant).
The present invention further simultaneously discloses the preparation method (formula of above-mentioned boehmite sol type abrasion-proof concrete hardening sealant agent
As above), comprise the following steps successively：
Deionized water and ethanol are first added in container, adds surfactant and wax powder, it is stirred at room temperature 10~
30min, 1000~2000rpm of stir speed (S.S.)；
Boehmite sol is subsequently added into, continues 10~30min of stirring, 500~800rpm of stir speed (S.S.) at room temperature；
Silane coupler and nano-particle are added, is warming up to 30~50 DEG C, stirs 30~60min, stir speed (S.S.) 500~
800rpm；
Room temperature is subsequently reduced to, obtains the agent of boehmite sol type abrasion-proof concrete hardening sealant (referred to as：Concrete hardening sealant
Agent).
The concrete seal hardener application method of the present invention to be sprayed directly on concrete surface, dosage is about 0.15~
0.30g/m2, room temperature maintenance 5-7 days.
Boehmite sol molecular formula is γ-AlOOH, and its particle diameter is small, and reactivity is high, can be with Free Ca in concrete2+With
And H2O reaction generation calcium aluminate binder materials, and calcium aluminate is alumina cement composition, compact structure, intensity is high.The present invention is exactly
The above-mentioned characteristic of boehmite sol is make use of, so as to develop a kind of new concrete seal hardener.
The present invention utilizes boehmite sol and Ca2+And H2O reacts to form compact structure, high rigidity calcium aluminate binder materials
Feature, prepare new concrete hardening sealant agent.The present invention by the addition nano-particle in the sealant (hardening sealant agent), from
And improve concrete hardness and anti-wear performance；The present invention by adding silane coupler in the encapsulant, energy after its hydrolytie polycondensation
Form network-like macromolecular, air-free concrete mesopore, so as to improve concrete hydrophobic performance；The present invention is by the encapsulant
Wax powder is added, so as to improve concrete surface glossiness and hydrophobic performance；The present invention by adding surface-active in the encapsulant
Agent, improve sealant depth of penetration in concrete.
Embodiment
Embodiment 1,
A kind of concrete seal hardener (agent of boehmite sol type abrasion-proof concrete hardening sealant), formula：Boehmite is molten
Glue (particle diameter 20nm, pH value 3.0, solid content 35%) 40%, Nano-meter SiO_22(particle diameter 20nm) 3%, tetraethyl orthosilicate 2%, it is double-
(triethoxysilylpropyltetrasulfide) amine 3%, polyethylene wax powder 1%, APES 0.2%, deionized water 40%,
Ethanol 10.8%.
Remarks：Double-(triethoxysilylpropyltetrasulfide) amine, i.e. double [3- (triethoxysilane) propyl group] amine.
Preparation method is to follow the steps below successively：
(1) deionized water and ethanol are weighed by weight in container, add the alkyl phenol polyoxy as surfactant
Vinethene and wax powder (polyethylene wax powder), are stirred at room temperature 10min, stir speed (S.S.) 1000rpm；
(2) prepared toward step (1) in the solution of gained and add boehmite sol, continue to stir 10min, stirring speed at room temperature
Rate 500rpm；
(3) tetraethyl orthosilicate, double-(three ethoxies added in the solution of gained as silane coupler are prepared toward step (2)
Base silylpropyl) Nano-meter SiO_2 of amine and addition as nano-particle2, 30 DEG C are warming up to, stirs 30min, stir speed (S.S.)
During 500rpm, room temperature is subsequently reduced to, obtains concrete seal hardener.
The concrete seal hardener for preparing gained is sprayed directly on concrete surface, dosage 0.15g/m2, conserve 5 days
Test performance afterwards.Concrete depth 2mm is penetrated into hardening sealant agent；Wearability improves 30% compared with untreated concrete；Hydrophobic performance
30% is improved compared with untreated concrete；Glossiness improves 50% compared with untreated concrete.
Embodiment 2,
A kind of concrete seal hardener, formula：Boehmite sol (particle diameter 10nm, pH value 3.5, solid content 40%)
35%th, nanometer Al2O3Double (trimethoxy silicon substrate) second of (40nm) 5%, double-(triethoxysilylpropyltetrasulfide) amine 3%, 1,2-
Alkane 5%, polytetrafluoroethylene (PTFE) wax powder 2%, APES 0.3%, deionized water 40%, ethanol 9.7%.
Preparation method is equal to embodiment 1.
The concrete seal hardener for preparing gained is sprayed directly on concrete surface, dosage 0.30g/m2, conserve 5 days
Test performance afterwards.Concrete depth 4.5mm is penetrated into hardening sealant agent；Wearability improves 70% compared with untreated concrete；Hydrophobicity
80% can be improved compared with untreated concrete；Glossiness improves 80% compared with untreated concrete.
Embodiment 3,
A kind of concrete seal hardener, formula：Boehmite sol (particle diameter 40nm, pH value 4.5, solid content 50%)
30%th, Nano-meter SiO_22(particle diameter 20nm) 4%, nanometer Al2O3(particle diameter 40nm) 4%, double-(trimethoxy-silylpropyl) amine
2%, double-(triethoxysilylpropyltetrasulfide) amine 2%, 1,2- double (trimethoxy silicon substrate) ethane 6%, polytetrafluoroethylene (PTFE) wax powders
5%, APES 0.5%, deionized water 37%, ethanol 9.5%.
Preparation method is equal to embodiment 1.
The concrete seal hardener for preparing gained is sprayed directly on concrete surface, dosage 0.25g/m2, conserve 5 days
Test performance afterwards.Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 90% compared with untreated concrete；Hydrophobic performance
80% is improved compared with untreated concrete；Glossiness improves 100% compared with untreated concrete.
Embodiment 4,
A kind of concrete seal hardener, formula：Boehmite sol (particle diameter 20nm, pH value 3.8, solid content 20%)
60%th, the double (trimethoxies of nano-ZnO (particle diameter 60nm) 5%, γ-glycidyl ether oxygen propyl trimethoxy silicane 2%, 1,2-
Silicon substrate) ethane 6%, polytetrafluoroethylene (PTFE) wax powder 4%, APES 0.5%, deionized water 17%, ethanol 5.5%.
Preparation method is equal to embodiment 1.
The concrete seal hardener for preparing gained is sprayed directly on concrete surface, dosage 0.20g/m2, conserve 5 days
Test performance afterwards.Concrete depth 3.5mm is penetrated into hardening sealant agent；Wearability improves 50% compared with untreated concrete；Hydrophobicity
50% can be improved compared with untreated concrete；Glossiness improves 80% compared with untreated concrete.
Embodiment 5,
A kind of concrete seal hardener, formula：Boehmite sol (particle diameter 30nm, pH value 4.0, solid content 45%)
50%th, nano Si3N4Double (the trimethoxy silicon of (particle diameter 20nm) 4%, double-(triethoxysilylpropyltetrasulfide) amine 5%, 1,2-
Base) ethane 5%, polytetrafluoroethylene (PTFE) wax powder 2%, APES 0.5%, deionized water 23.5%, ethanol 10%.
Preparation method is equal to embodiment 1.
The concrete seal hardener for preparing gained is sprayed directly on concrete surface, dosage 0.18g/m2, conserve 5 days
Test performance afterwards.Concrete depth 2.5mm is penetrated into hardening sealant agent；Wearability improves 40% compared with untreated concrete；Hydrophobicity
30% can be improved compared with untreated concrete；Glossiness improves 60% compared with untreated concrete.
Comparative example 1, by embodiment 3 " boehmite sol (particle diameter 40nm, pH value 4.5, solid content 50%) 30%, go from
Sub- water 37% ", make into " boehmite sol (particle diameter 40nm, pH value 4.5, solid content 50%) 25%, deionized water 42% ", remaining
It is equal to embodiment 3.As the methods described of embodiment 3 is detected：
Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 30% compared with untreated concrete；Hydrophobic performance is more not
Handle concrete and improve 60%；Glossiness improves 60% compared with untreated concrete.
" Nano-meter SiO_2 in comparative example 2, cancellation embodiment 324% " use, accordingly by nanometer Al2O3Made into by 4%
8%；Remaining is equal to embodiment 3.As the methods described of embodiment 3 is detected：
Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 70% compared with untreated concrete；Hydrophobic performance is more not
Handle concrete and improve 70%；Glossiness improves 90% compared with untreated concrete.
" nanometer Al in comparative example 3, cancellation embodiment 32O34% " use, accordingly by Nano-meter SiO_22Made into by 4%
8%；Remaining is equal to embodiment 3.As the methods described of embodiment 3 is detected：
Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 60% compared with untreated concrete；Hydrophobic performance is more not
Handle concrete and improve 75%；Glossiness improves 90% compared with untreated concrete.
Comparative example 4, by the " Nano-meter SiO_2 in embodiment 324%th, nanometer Al2O34% " makes " Nano-meter SiO_2 into26%th, nanometer
Al2O32% "；Remaining is equal to embodiment 3.As the methods described of embodiment 3 is detected：
Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 70% compared with untreated concrete；Hydrophobic performance is more not
Handle concrete and improve 75%；Glossiness improves 70% compared with untreated concrete.
Comparative example 5, by the " Nano-meter SiO_2 in embodiment 324%th, nanometer Al2O34% " makes " Nano-meter SiO_2 into22%th, nanometer
Al2O36% "；Remaining is equal to embodiment 3.As the methods described of embodiment 3 is detected：
Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 85% compared with untreated concrete；Hydrophobic performance is more not
Handle concrete and improve 75%；Glossiness improves 50% compared with untreated concrete.
Comparative example 6, by " the nanometer Al in embodiment 32O34% " makes " nano-ZnO 4% " into；Remaining is equal to embodiment
3.As the methods described of embodiment 3 is detected：
Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 90% compared with untreated concrete；Hydrophobic performance is more not
Handle concrete and improve 70%；Glossiness improves 40% compared with untreated concrete.
Comparative example 7, by the " Nano-meter SiO_2 in embodiment 324% " makes " nano-ZnO 4% " into；Remaining is equal to embodiment
3.As the methods described of embodiment 3 is detected：
Concrete depth 4mm is penetrated into hardening sealant agent；Wearability improves 70% compared with untreated concrete；Hydrophobic performance is more not
Handle concrete and improve 50%；Glossiness improves 80% compared with untreated concrete.
Finally, it is also necessary to it is noted that listed above is only several specific embodiments of the invention.Obviously, this hair
It is bright to be not limited to above example, there can also be many deformations.One of ordinary skill in the art can be from present disclosure
All deformations for directly exporting or associating, are considered as protection scope of the present invention.
Claims (4)
1. boehmite sol type abrasion-proof concrete hardening sealant agent, it is characterized in that being made up of the composition of following weight percentage：
Boehmite sol 30~60%, nano-particle 3~8%, silane coupler 5~10%, wax powder 1~5%, surfactant 0.1
~0.5%, ethanol 5~11%；Surplus is deionized water；
10~40nm of the boehmite sol particle diameter, pH value 3~5, solid content 20~50%；
The nano-particle is SiO2、Al2O3、ZnO、Si3N4At least one of, particle diameter is 20~60nm；
The silane coupler is tetraethyl orthosilicate, APTES, γ-glycidyl ether oxygen propyl front three
TMOS, γ-(methacryloxypropyl) propyl trimethoxy silicane, double-(trimethoxy-silylpropyl) amine, double-(three
Triethoxysilyl propyl group) amine, at least one of double (trimethoxy silicon substrate) ethane of 1,2-；
The wax powder is polyethylene wax powder or polytetrafluoroethylene (PTFE) wax powder；
The surfactant is nonionic surfactant or anion surfactant.
2. boehmite sol type abrasion-proof concrete hardening sealant agent according to claim 1, it is characterized in that：
Boehmite sol 10~20nm of particle diameter, pH value 3.5~4.5, solid content 20~40%；
The nano-particle is SiO2、Al2O3At least one of；
The silane coupler is double-(trimethoxy-silylpropyl) amine, double-(triethoxysilylpropyltetrasulfide) amine,
At least one of double (trimethoxy silicon substrate) ethane of 1,2-；
The wax powder is polytetrafluoroethylene (PTFE) wax powder；
The surfactant is APES.
3. boehmite sol type abrasion-proof concrete hardening sealant agent according to claim 1 or 2, it is characterized in that by following heavy
Measure the composition composition of percentage composition：
Boehmite sol 30%, Nano-meter SiO_224%th, nanometer Al2O34%th, double-(trimethoxy-silylpropyl) amine 2%,
Double-(triethoxysilylpropyltetrasulfide) amine 2%, 1,2- double (trimethoxy silicon substrate) ethane 6%, polytetrafluoroethylene (PTFE) wax powders 5%,
APES 0.5%, deionized water 37%, ethanol 9.5%；
Boehmite sol particle diameter 40nm, pH value 4.5, solid content 50%；
Nanometer Al2O3Particle diameter 40nm.
4. the preparation method of the boehmite sol type abrasion-proof concrete hardening sealant agent as described in claims 1 to 3 is any, it is special
Sign is to comprise the following steps successively：
Deionized water and ethanol are first added in container, adds surfactant and wax powder, 10~30min is stirred at room temperature, is stirred
Mix 1000~2000rpm of speed；
Boehmite sol is subsequently added into, continues 10~30min of stirring, 500~800rpm of stir speed (S.S.) at room temperature；
Silane coupler and nano-particle are added, is warming up to 30~50 DEG C, stirs 30~60min, stir speed (S.S.) 500~
800rpm；
Room temperature is subsequently reduced to, obtains boehmite sol type abrasion-proof concrete hardening sealant agent.
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| CN106747652B (en) * | 2016-12-13 | 2019-01-11 | 浙江大学自贡创新中心 | Two-component dyes hardening sealant floor material |
| CN107868497B (en) * | 2017-12-12 | 2020-04-24 | 自贡格灵新材料科技有限公司 | Preparation and use methods of colored antistatic anticorrosive paint |
| CN115925353A (en) * | 2022-11-22 | 2023-04-07 | 山东高速工程建设集团有限公司 | Steel slag-based rock-soil curing agent and preparation method thereof |
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| CN103664030B (en) * | 2012-08-31 | 2016-10-19 | 东莞市默诺克实业有限公司 | The firming agent of a kind of concrete surface hardening sealant and preparation, construction method |
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Effective date of registration: 20210115 Address after: Room 302, 3rd floor, building 12, National University Science Park, No.26 Fengnan Road, Ouhai Economic Development Zone, Wenzhou City, Zhejiang Province 325036 Patentee after: Jina (Wenzhou) new material technology Co.,Ltd. Address before: No.99 Jinjihu Avenue, Suzhou Industrial Park, Suzhou, Jiangsu Province Patentee before: SUZHOU NAGU NEW MATERIAL Co.,Ltd. |