CN109761576A - A kind of functional seal curing agent and preparation method thereof - Google Patents
A kind of functional seal curing agent and preparation method thereof Download PDFInfo
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- CN109761576A CN109761576A CN201910213153.7A CN201910213153A CN109761576A CN 109761576 A CN109761576 A CN 109761576A CN 201910213153 A CN201910213153 A CN 201910213153A CN 109761576 A CN109761576 A CN 109761576A
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- titanium dioxide
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Abstract
The present invention provides a kind of functional seal curing agent and preparation method thereof, improve the component that functional seal curing agent includes following weight percent: the silicate of 3 ~ 30wt%, the double shell type core-shell structure nanometer particle of 0.1 ~ 10wt%, the auxiliary agent of 0.05 ~ 0.5wt%, surplus water；The present invention also provides a kind of preparation methods including specific steps.Preparation process of the invention is simple, and product stability is good, colourless, nontoxic, environment-friendly type is splendid；After concrete surface application, the correlated performances such as wear-resisting, automatically cleaning or antibacterial have splendid durability；The intensity, hardness, compactness etc. of concrete surface can be substantially improved.
Description
Technical field
The invention belongs to building material technical fields more particularly to a kind of functional seal curing agent and preparation method thereof.
Background technique
Currently, concrete floor has been widely used in building field, although concrete floor itself is finer and close,
Also has the inherent shortcoming of concrete structure, terrace is to carry out construction processing to original ground using concrete and show certain
The ground of strength and stiffness, silicon that intensity is mainly derived from concrete in cement composition, calcium generate under the action of hydration
Calcium silicate compound.Still carrying out slow hydration reaction inside concrete floor always after initial set, this reaction exists
It can not be carried out completely under natural situation, always there is largely free calcium ion not react generation calcium silicate compound, so coagulation
There are also very big potentiality for the raising of native hardness, while also resulting in concrete floor and being easy ash, and durability is not all right.
For problem above existing for concrete floor, the prior art generallys use concrete dense curing agent and comes to coagulation
Soil structure object is handled.Currently, the combination of the one-component curing sealing agent and cement floor polishing technology of concrete surface,
Ground can be made to reach graceful glossiness and practical function, have become the Developing mainstream in concrete floor market.But people
The requirement of aspect functional to ground is higher and higher, and the concept of multi-functional terrace has been brought into schedule, as high abrasion, automatically cleaning,
The special concrete earth material of the functions such as antibacterial will have broad application prospects.Although having there is some companies both domestic and external
The sealing and curing agent material of some specific functions is reported, but all there is stability is bad, effect durability is bad etc. mostly
Shortcoming.
Summary of the invention
The invention is intended to overcome the deficiencies of the prior art and provide a kind of functional seal curing agent and preparation method thereof.
In order to achieve the above object, technical solution provided by the invention are as follows:
The present invention provides a kind of functional seal curing agent, the component including following weight percent: the silicon of 3~30wt%
Hydrochlorate, the double shell type core-shell structure nanometer particle of 0.1~10wt%, the auxiliary agent of 0.05~0.5wt%, surplus water.
Wherein, the silicate is one of lithium metasilicate, sodium metasilicate, potassium silicate or more than one mixtures.If silicon
Phosphate content is excessively high, and the stability of curing sealing agent is poor, is unfavorable for storing and transport, if silicate content is too low, curing agent
Using rear dried slow, construction efficiency is low, while the transportation cost of curing agent is excessively high.
Wherein, the double shell type core-shell structure nanometer particle is with nano aluminium oxide, nano zircite, nano oxidized
One of silicon, nano-titanium dioxide, doped nano titanium dioxide, nano zine oxide or nano silver are stratum nucleare, and silica is
Hypostracum, the composite nanoparticle that silane clad is outer shell, the partial size of nanoparticle are 1~100nm.Nano material due to
Its distinctive skin effect, dimensional effect are widely used as the function addition of numerous materials.If double shell type core-shell structure nanometer particle
Content in curing sealing agent is too low, and efficacy is unobvious, if double shell type core-shell structure nanometer particle is in sealing and curing
Too high levels in agent, may influence whether dispersion of the nanoparticle in curing sealing agent, can also reduce curing sealing agent with
The integral adhesive power of concrete substrate.The particle size of nanoparticle cannot be excessive, oversized, and it is mixed to influence nanoparticle infiltration
Solidifying soil is internal.
The nanoparticle that the present invention refers to has double shell type core-shell structure, and hypostracum is silicon dioxide layer, by means of the layer,
The change between nanoparticle and curing sealing agent entirety, concrete substrate can be realized using the activated silica of silica layer surface
Key connection is learned, the durability of effect can be substantially improved, outer shell can be improved nanoparticle by means of the layer for silane clad
Dispersion performance of the son in curing sealing agent, while can also be introduced using the silane of the non-complete hydrolysis in part in nanoparticle surface
More activated silicas further increase the surface bond activity of nanoparticle.Just because of the double shell type structure of nanoparticle
In the presence of dispersion stabilization of the nanoparticle in curing agent product on the one hand can be greatly improved, and still further aspect can also have
Effect prevent curing agent after coagulation great soil group substrate applications the abrasion of the function nano particle as caused by extraneous physics chemical action,
It falls off, and then the durability of nanoparticle effect during service can be greatly improved.
Preferably, the auxiliary agent is cationic surfactant, anionic surfactant, non-ionic surfactant
One of agent or more than one mixtures.
It is further preferred that the cationic surfactant is long chain alkyl primary amine salt, in secondary amine salt, tertiary ammonium salt
One or more kinds of mixtures, the anionic surfactant are stearic acid, neopelex, dodecyl
One of sodium sulphate or more than one mixtures, the nonionic surfactant be polysorbate60, Tween 80, sorbester p18,
One of sorbester p17 or more than one mixtures.
Preferably, the doped nano titanium dioxide is nitrogen-doped titanium dioxide, Fe2O3 doping titanium dioxide, vanadium doping two
One of titanium oxide, chromium doped titanium dioxide or more than one mixtures.
Meanwhile the present invention also provides the preparation method of the curing sealing agent, specifically comprises the following steps:
The preparation of double shell type core-shell structure nanometer particle: S1 by nano aluminium oxide, nano zircite, nano silicon oxide, receives
Rice titanium dioxide, doped nano titanium dioxide, nano zine oxide or nano silver are added in solvent, add ethyl orthosilicate,
Catalyst, water are added silane coupling agent and are further continued for instead after 40~120 degrees Celsius of following ultrasonic sides are stirred to react 6~18 hours
It answers 2~10 hours, obtains double shell type core-shell structure nanometer particle after removing solvent washing, wherein nano aluminium oxide, nano oxidized
Zirconium, nano silicon oxide, nano-titanium dioxide, doped nano titanium dioxide, nano zine oxide or nano silver concentration be 1~
10wt%, ethyl orthosilicate concentration be 0.5~15wt%, catalyst concn be 0.001~0.1wt%, water concentration be 0.5~
5wt%, silane coupling agent concentration are 0.1~2.5wt%；
S2, each component it is compound: proportionally double shell type core-shell structure nanometer particle is added in water, ultrasonic disperse
It 2~4 hours, adds auxiliary agent after adding silicate dispersion and stirs evenly, obtain functional seal curing agent.
Preferably, the solvent be methanol, ethyl alcohol, propyl alcohol, isopropanol, butanol, hexanol, tetrahydrofuran, ethyl acetate,
One of butyl acetate, MIBK, propylene glycol monomethyl ether, propylene glycol methyl ether acetate or more than one mixtures.
Preferably, the catalyst is ammonium hydroxide, sodium hydroxide, potassium hydroxide, tetramethylammonium hydroxide, tetrabutyl hydrogen-oxygen
Change one of ammonium, nitric acid, sulfuric acid, hydrochloric acid, acetic acid.
Preferably, the silane coupling agent be kh131, kh132, kh330, kh580, kh222, kh1631, kh560,
One of kh561, kh902, kh554, kh602, kh792, kh550, kh540 or more than one mixtures.
For compared with prior art, the beneficial effects of the present invention are:
(1) curing sealing agent of the invention is after concrete surface application, the correlated performances such as wear-resisting, automatically cleaning or antibacterial
With splendid durability；
(2) curing sealing agent preparation process of the invention is simple, and obtained curing sealing agent stability is good；
(3) present invention is that a kind of product colourless, nontoxic, environment-friendly type is splendid can be substantially after concrete surface application
Promote intensity, hardness, the compactness etc. of concrete surface.
Specific embodiment
The present invention is explained combined with specific embodiments below, the examples of the embodiments are intended for explaining this
Invention, and be not considered as limiting the invention.
Embodiment 1
Functional seal curing agent of the invention by following parts by weight material composition: the sodium metasilicate of 20wt%, 3wt%
Double shell type nuclear shell structure nano titanium dioxide, the dodecyl sodium sulfate of 0.5wt%, surplus water.Preparation step includes:
(1) preparation of core-shell structure nanometer particle: nano-titanium dioxide is added to the mixed solvent of ethyl alcohol and butyl acetate
In, ethyl orthosilicate, catalyst ammonia water, water are added, after 90 degrees Celsius of following ultrasonic sides are stirred to react 8 hours, is added
Kh131, kh550 are further continued for reaction 5 hours, obtain double shell type core-shell structure nanometer particle after removing solvent washing, wherein nanometer
Particle concentration is 5wt%, and ethyl orthosilicate concentration is 0.5wt%, catalyst concn 0.1wt%, water concentration 5wt%, silicon
Alkane coupling agent concentrations are 0.5wt%.
(2) each component is compound: proportionally double shell type core-shell structure nanometer particle being added in water, ultrasonic disperse
It 2 hours, adds dodecyl sodium sulfate after adding silicate dispersion and stirs evenly, obtain functional seal curing agent.
By functional seal curing agent after coagulation great soil group substrate surface is applied and conserved, correlated performance is tested.
Embodiment 2
Functional seal curing agent of the invention by following parts by weight material composition: the sodium metasilicate of 10wt%, 5wt%
Potassium silicate, the lithium metasilicate of 2wt%, the double shell type nuclear shell structure nano aluminium oxide of 10wt%, the Tween 80 of 0.05wt%, surplus
Water.
(1) preparation of core-shell structure nanometer particle: nano aluminium oxide is added to the mixing of butyl acetate and propylene glycol monomethyl ether
In solvent, ethyl orthosilicate, catalyst nitric acid, water are added, after 110 degrees Celsius of following ultrasonic sides are stirred to react 6 hours, is added
Enter kh330, kh792 and be further continued for reaction 2 hours, obtains double shell type core-shell structure nanometer particle after removing solvent washing, wherein receive
Rice corpuscles concentration is 1.5wt%, and ethyl orthosilicate concentration is 1wt%, catalyst concn 0.05wt%, and water concentration is
1.5wt%, silane coupling agent concentration are 0.2wt%.
(2) each component is compound: proportionally double shell type core-shell structure nanometer particle being added in water, ultrasonic disperse
It 2 hours, adds Tween 80 after adding silicate dispersion and stirs evenly, obtain functional seal curing agent.
By functional seal curing agent after coagulation great soil group substrate surface is applied and conserved, correlated performance is tested.
Embodiment 3
Functional seal curing agent of the invention by following parts by weight material composition: the sodium metasilicate of 20wt%, 2wt%
Double shell type nuclear shell structure nano zinc oxide, the long chain alkyl primary amine salt of 0.1wt%, surplus water.
(1) preparation of core-shell structure nanometer particle: nano zine oxide is added to the mixed solvent of tetrahydrofuran and isopropanol
In, ethyl orthosilicate, catalyst sodium hydroxide, water are added, after 40 degrees Celsius of following ultrasonic sides are stirred to react 18 hours, is added
Enter kh602 and be further continued for reaction 10 hours, obtains double shell type core-shell structure nanometer particle after removing solvent washing, wherein nanoparticle
Sub- concentration is 5wt%, and ethyl orthosilicate concentration is 9wt%, catalyst concn 0.002wt%, water concentration 5wt%, silane
Coupling agent concentrations are 2wt%.
(2) each component is compound: proportionally double shell type core-shell structure nanometer particle being added in water, ultrasonic disperse
It 2 hours, adds long chain alkyl primary amine salt after adding silicate dispersion and stirs evenly, obtain functional seal curing agent.
By functional seal curing agent after coagulation great soil group substrate surface is applied and conserved, correlated performance is tested.
Comparative example 1
A kind of curing sealing agent, by the material composition of following parts by weight: the water of the sodium metasilicate of 25wt%, surplus.
By this kind of curing sealing agent after coagulation great soil group substrate surface is applied and conserved, correlated performance is tested.
Comparative example 2
A kind of curing sealing agent, by the material composition of following parts by weight: the sodium metasilicate of 25wt%, 2wt% it is nano oxidized
The water of zinc, surplus.By curing sealing agent after coagulation great soil group substrate surface is applied and conserved, correlated performance is tested, the results are shown in Table
1。
Each embodiment sample test data contrast table of table 1
| Blank sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | |
| Mohs' hardness | 5 | 7 | 8 | 7 | 7 | 6 |
| Wear resistance ratio | 100% | 200% | 290% | 230% | 230% | 160% |
| 30 days antibiotic properties | Nothing | Nothing | Nothing | Have | Nothing | Have |
| 30 days self-cleaning properties | Nothing | Have | Nothing | Nothing | Nothing | Nothing |
| 720 days antibiotic properties | Nothing | Nothing | Nothing | Have | Nothing | Nothing |
| 720 days self-cleaning properties | Nothing | Have | Nothing | Nothing | Nothing | Nothing |
It can be seen from Table 1 that the present invention is significant to the improvement effect of the hardness of concrete surface, wear resistance is than excellent
It is good, in two automatically cleaning, antibacterial performances, hence it is evident that be better than comparative example, there is splendid durability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of functional seal curing agent, which is characterized in that the component including following weight percent: the silicic acid of 3 ~ 30wt%
Salt, the double shell type core-shell structure nanometer particle of 0.1 ~ 10wt%, the auxiliary agent of 0.05 ~ 0.5wt%, surplus water, wherein the silicon
Hydrochlorate is one of lithium metasilicate, sodium metasilicate, potassium silicate or more than one mixtures；The double shell type nuclear shell structure nano grain
Son is with nano aluminium oxide, nano zircite, nano silicon oxide, nano-titanium dioxide, doped nano titanium dioxide, nano oxidized
One of zinc or nano silver are stratum nucleare, and silica is hypostracum, the composite nanoparticle that silane clad is outer shell, is received
The partial size of rice corpuscles is 1 ~ 100nm.
2. a kind of functional seal curing agent according to claim 1, which is characterized in that the auxiliary agent is cation form
One of face activating agent, anionic surfactant, nonionic surface active agent or more than one mixtures.
3. a kind of functional seal curing agent according to claim 2, which is characterized in that the cation surface activating
Agent is one of long chain alkyl primary amine salt, secondary amine salt, tertiary ammonium salt or more than one mixtures, the anion surface active
Agent is one of stearic acid, neopelex, lauryl sodium sulfate or more than one mixtures, it is described it is non-from
Sub- surfactant is one of polysorbate60, Tween 80, sorbester p18, sorbester p17 or more than one mixtures.
4. a kind of functional seal curing agent according to claim 1, which is characterized in that the dopen Nano titanium dioxide
Titanium is one of nitrogen-doped titanium dioxide, Fe2O3 doping titanium dioxide, vanadium doping titanium dioxide, chromium doped titanium dioxide or one kind
The above mixture.
5. a kind of a kind of described in any item preparation methods of functional seal curing agent of claim 1-4, which is characterized in that packet
Include following steps:
S1, the preparation of double shell type core-shell structure nanometer particle: by nano aluminium oxide, nano zircite, nano silicon oxide, nanometer two
Titanium oxide, doped nano titanium dioxide, nano zine oxide or nano silver are added in solvent, add ethyl orthosilicate, catalysis
Agent, water are added silane coupling agent and are further continued for reaction 2 ~ 10 after 40 ~ 120 degrees Celsius of following ultrasonic sides are stirred to react 6 ~ 18 hours
Hour, double shell type core-shell structure nanometer particle is obtained after removing solvent washing, wherein nano aluminium oxide, nano zircite, nanometer
Silica, nano-titanium dioxide, doped nano titanium dioxide, nano zine oxide or nano silver concentration be 1 ~ 10wt%, positive silicic acid
Ethyl ester concentration is 0.5 ~ 15wt%, and catalyst concn is 0.001 ~ 0.1wt%, and water concentration is 0.5 ~ 5wt%, silane coupling agent concentration
For 0.1 ~ 2.5wt%；
S2, each component it is compound: proportionally double shell type core-shell structure nanometer particle is added in water, ultrasonic disperse 2 ~ 4
Hour, it adds auxiliary agent after adding silicate dispersion and stirs evenly, obtain functional seal curing agent.
6. a kind of preparation method of functional seal curing agent according to claim 5, which is characterized in that the solvent
For methanol, ethyl alcohol, propyl alcohol, isopropanol, butanol, hexanol, tetrahydrofuran, ethyl acetate, butyl acetate, MIBK, propylene glycol monomethyl ether,
One of propylene glycol methyl ether acetate or more than one mixtures.
7. a kind of preparation method of functional seal curing agent according to claim 5, which is characterized in that described urges
Agent is ammonium hydroxide, sodium hydroxide, potassium hydroxide, tetramethylammonium hydroxide, tetrabutylammonium hydroxide, nitric acid, sulfuric acid, hydrochloric acid, vinegar
One of acid.
8. a kind of preparation method of functional seal curing agent according to claim 5, which is characterized in that the silane
Coupling agent be kh131, kh132, kh330, kh580, kh222, kh1631, kh560, kh561, kh902, kh554, kh602,
One of kh792, kh550, kh540 or more than one mixtures.
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| CN114956733A (en) * | 2022-06-10 | 2022-08-30 | 日照海工研新材料有限公司 | High-strength anti-erosion marine concrete and preparation method thereof |
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| CN114634327A (en) * | 2021-12-27 | 2022-06-17 | 德爱威（中国）有限公司 | Pure lithium-based sealing curing agent and preparation method thereof |
| CN114956733A (en) * | 2022-06-10 | 2022-08-30 | 日照海工研新材料有限公司 | High-strength anti-erosion marine concrete and preparation method thereof |
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