CN110484134A - A kind of waterproof ventilating type clear-water concrete protective agent and preparation method thereof - Google Patents
A kind of waterproof ventilating type clear-water concrete protective agent and preparation method thereof Download PDFInfo
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- CN110484134A CN110484134A CN201910742099.5A CN201910742099A CN110484134A CN 110484134 A CN110484134 A CN 110484134A CN 201910742099 A CN201910742099 A CN 201910742099A CN 110484134 A CN110484134 A CN 110484134A
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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
- C04B41/50—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 inorganic materials
- C04B41/5025—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 inorganic materials with ceramic materials
- C04B41/5041—Titanium oxide or titanates
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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
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
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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
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
- C04B41/68—Silicic acid; Silicates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of waterproof ventilating type clear-water concrete protective agents and preparation method thereof; the protective agent includes the raw material of following parts by weight: 25-35 parts of organosilan, 2-3 parts of emulsifier, 15-20 parts of dispersing agent, coal 3-5 parts of light touching, 8-12 parts of inorganic salts, 6-10 parts of thickener and 50-70 parts of deionized water.The processes such as silane emulsion is first made, then mixes, stir with other compositions to be made.Protective agent good permeability produced by the present invention, good weatherability, binding force are strong, are worthy of popularization.
Description
Technical field
The present invention relates to Concrete Protective Agent and preparation method thereof, in particular to a kind of waterproof ventilating type clear-water concrete is protected
Protect agent and preparation method thereof.
Background technique
Concrete is formed by cement, aggregate and part of auxiliary mixing after-pouring, when concrete is exposed to atmosphere dirt for a long time
In the adverse circumstances such as dye, ultraviolet light, acid rain, the protective layer of concrete is carbonized, chloride corrosion, then generates crack, is influenced
Presentation quality and durability.It therefore is usually that the durable of clear-water concrete is improved using the method for later period repairing and coating protection agent
Property.
The Chinese patent of Publication No. CN 103922800A discloses a kind of protective agent for clear-water concrete, including
Priming paint, mid-term and finishing coat, priming paint are organosilicon polymer, it is middle paint by self-crosslinking polymer, water, pigment, filler and other help
Agent composition, finishing coat are fluorine silicon resin polymer, by the synergy of three level paints, assign concrete water-proof anticorrosion weatherability
Automatically cleaning and other effects.The Chinese patent of Publication No. CN 103214265B discloses a kind of water base permeable concrete protective agent
Preparation method, which includes that Potassium aluminum sulfate dodecahydrate, sodium hydroxide, citric acid, silane are even
Join agent, sodium silicate aqueous solution and deionized water, the protective agent of preparation does not form a film in concrete surface, but directly penetrates into coagulation
It is native internal, the complicated and confused shape crystal of production is reacted with the free alkali of inside concrete, fills capillary porosity and the micro chink of concrete,
The waterproof and anticorrosion effect of concrete is improved, durability is improved.One kind disclosed in the Chinese patent of Publication No. CN 102633462B
Concrete Protective Agent and its preparation method and application, the Concrete Protective Agent include vinyl acetate polymer dispersable adhesive powder,
Propylene glycol Ricinate, ammonium persulfate stabilizer, natrium carbonicum calcinatum, tartaric acid and water, in the Concrete Protective Agent of preparation
Polymer penetrates into inside concrete by Ricinate, improves the toughness of concrete, and water in inorganic salts and concrete
Change product calcium hydroxide reaction, generates the internal void of crystalline solid fill concrete, improve erosion resistance, the anticracking of concrete
Ability and durability, and it is nontoxic and pollution-free.
By the above-mentioned prior art it is found that Concrete Protective Agent is osmosis type and two kinds of film-type, osmosis type protective agent influences
The permeability of concrete, and weatherability is poor, film-type weatherability and good permeability, but film is easy bubble and falls off, in conjunction with
Power is weak.
Summary of the invention
Goal of the invention: it is an object of the present invention to provide a kind of good air permeability, the clear-water concrete protection that weatherability is strong, binding force is strong
Agent.
Technical solution: the present invention provides a kind of waterproof ventilating type clear-water concrete protective agent, including following parts by weight
Raw material: 25-35 parts of organosilan, 2-3 parts of emulsifier, 15-20 parts of dispersing agent, light touch coal 3-5 parts, 8-12 parts of inorganic salts, thickening
6-10 parts and deionized water 50-70 parts of agent.
Further, the synthesis technology of the organosilan are as follows: add vinyltrimethoxysilane, Lactic acid
Enter into the flask that blender, thermometer, condenser pipe are housed and react, and is stirred at a temperature of 80 DEG C of thermostatical oil bath,
Dibutyl tin dilaurate and water are added in the process, are stirred 4h at 110 DEG C, are cooled to room temperature, addition HDI stirring 3~
5min vacuum defoamation.
The organosilan is the modified vinyltrimethoxysilane of 2 hydroxy propanoic acid, and molecular formula is as follows:
The organosilan is the modified vinyltrimethoxysilane of 2 hydroxy propanoic acid.The modified ethylene of 2 hydroxy propanoic acid
When base trimethoxy silane product is sprayed on concrete surface, inside concrete can be penetrated into, the silicon with active group
Oxygen alkane forms hydrophobic net structure by the interaction between group and is evenly distributed on concrete, forms water-repellent layer, has
Prevent the corrosive mediums such as outside moisture from entering inside to effect.Again since capillary channel is unclosed, the disengaging of air is not interfered, thus
Superior gas permeability is embodied again.The addition of vinyltrimethoxysilane increases the parent of organic material and inorganic material simultaneously
And power, cohesive force is stronger, is conducive to the raising of adhesion strength.Vinyl trimethoxy meets water and is dehydrated contracting under conditions of catalyst
Conjunction is attached with 2 hydroxy propanoic acid, generates hydrophobic type ester group, is conducive to the waterproofness and antipollution that improve concrete
Ability.
Further, the emulsifier is sorbester p17 or paregal O.Silane emulsion can be made using sorbester p17 and paregal O
Preferable stability is presented.
Further, the photocatalyst is nano-titanium dioxide.It is easy to absorb in concrete curing agent hydration process and receives
Rice titanium dioxide, effectively degradation nitrogen oxides.Nano-titanium dioxide has the function of stopping ultraviolet light simultaneously, effectively extends building
The service life of decoration of exterior wall realizes that guarantor's color is weather-proof.The partial impurities for being attached to faced concrete surface can be carried out simultaneously
Catalytic decomposition, reaches self-cleaning purpose.
Further, the dispersing agent is polyethylene glycol.The addition of polyethylene glycol can make the active group of silane emulsion temporary
When be passivated, be conducive to the stabilization of lotion, play the role of stabilizer.
Further, the inorganic salts are sodium hydroxide or waterglass.Waterglass has good film-formation result, on a small quantity
It is incorporated in concrete surface and forms fluid-tight film, it is excessive to mix the infiltration that will cause waterglass, capillary channel is blocked, from
And the gas permeability of concrete is influenced, therefore additive amount of the invention is preferably 8-12 parts.Addition (the 8-12 of suitable sodium hydroxide
Part), it can effectively improve the solution rate of thickener.
Further, the waterglass is the industrial sodium silicate that modulus is 1.9~2.1.
Further, the thickener is hydroxypropyl methyl cellulose or methylcellulose.The hydroxypropyl methyl fiber
The viscosity of element is 100000~200000mPas.This hair can be improved in the addition of hydroxypropyl methyl cellulose or methylcellulose
Bright smear extends operable time.
Further, application method are as follows: after the completion of concreting, waterproof ventilating type clear-water concrete protective agent is sprayed
It is spread across the surface of concrete, until concrete surface is all soaked, standing is mixed completely to waterproof ventilating type Concrete Protective Agent
Solidifying soil absorbs, and fountain height is 0.125~0.25kg/m2.
A kind of preparation method of waterproof ventilating type clear-water concrete protective agent, includes the following steps:
(1) prepare raw material: 25-35 parts of organosilan, 2-3 parts of emulsifier, 15-20 parts of dispersing agent, light touch coal 3-5 parts, nothing
8-12 parts of machine salt, 6-10 parts of thickener and 50-70 parts of deionized water；
(2) it prepares silane emulsion: emulsifier is mixed with deionized water, stir to being completely dissolved, then at 40~50 DEG C
At a temperature of organosilan is added dropwise, later carry out constant temperature stirring, finally obtain silane emulsion；
(3) it prepares product: dispersing agent, inorganic salts and deionized water being added into silane emulsion, is sufficiently stirred, is eventually adding
Photocatalyst and thickener, high-speed stirred, stand to get.
A kind of preparation method of waterproof ventilating type clear-water concrete protective agent, characterized by the following steps:
(1) prepare raw material: 25-35 parts of organosilan, 2-3 parts of emulsifier, 15-20 parts of dispersing agent, light touch coal 3-5 parts, nothing
8-12 parts of machine salt, 6-10 parts of thickener and 50-70 parts of deionized water；
(2) it prepares silane emulsion: emulsifier is mixed with deionized water, stir to being completely dissolved, then at 40~50 DEG C
At a temperature of organosilan is added dropwise, later carry out constant temperature stirring, finally obtain silane emulsion；
(3) it prepares product: dispersing agent, inorganic salts and deionized water being added into silane emulsion, is sufficiently stirred, is eventually adding
Photocatalyst and thickener, high-speed stirred, stand to get.
Protective agent of the invention uses organosilan for primary raw material, touches coal, dispersing agent, inorganic salts, thickener in conjunction with light
Waterproof ventilating type Concrete Protective Agent is prepared with water.Siloxanes in the protective agent with active group passes through between group
Interaction forms hydrophobic net structure and is evenly distributed on concrete, forms water-repellent layer, is effectively prevented outside moisture
Equal corrosive mediums enter inside, at the same a small amount of inorganic salts (such as waterglass) be incorporated in concrete surface formed it is fluid-tight thin
The binding force of film, film and concrete enhances, it is not easy to and fall off bubble, and since inside concrete capillary channel is unclosed,
The disengaging for not influencing air, because and embody the superior gas permeability of the product.The protective agent contain hydrophobic ingredient and it is hydrophilic at
Point, therefore part protective agent is deep into inside concrete, part protective agent forms film in concrete surface, and the film is not easy
Bubble falls off, therefore has both osmosis type and the protectant advantage of film-type.
The utility model has the advantages that protective agent of the invention has ventilative, weatherability performance, it effectively prevent the corrosion of clear-water concrete
And carbonization, the durability of concrete is improved, and again strong with concrete binding force.
Specific embodiment
Embodiment 1
(1) 3 parts of sorbester p17s are mixed with deionized water, to being uniformly mixed, be then added 25 parts has heating stirring at 25 DEG C
Machine silane, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 3min vacuum defoamation；
(2) by weight, by silane emulsion be added 15 parts of polyethylene glycol dispersing agent, 8 parts of waterglass, 50 parts go
It in ionized water, is sufficiently stirred, is eventually adding 3 parts of nano-titania photocatalyst and the thickening of 6 parts of hydroxypropyl methyl cellulose
Agent, high-speed stirred, standing obtain waterproof ventilating type Concrete Protective Agent；
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, is sprayed 2 times repeatedly.
Embodiment 2
(1) 2 parts of sorbester p17s are mixed with deionized water, to being uniformly mixed, be then added 35 parts has heating stirring at 25 DEG C
Machine silane, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 5min vacuum defoamation；
(2) by weight, 20 parts of polyethylene glycol dispersing agent, 12 parts of sodium hydroxide, 70 parts is added in silane emulsion
Deionized water in, be sufficiently stirred, be eventually adding 5 parts of nano-titania photocatalyst and 10 parts of hydroxypropyl methyl cellulose
Thickener, high-speed stirred, standing obtain waterproof ventilating type Concrete Protective Agent.
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, can be sprayed 3 repeatedly
It is secondary.
Embodiment 3
(1) 2 parts of peregals 0 are mixed with deionized water, to being uniformly mixed, be then added 35 parts has heating stirring at 25 DEG C
Machine silane, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 4min vacuum defoamation；
(2) by weight, by silane emulsion be added 17 parts of polyethylene glycol dispersing agent, 9 parts of sodium hydroxide inorganic salts,
It in 70 parts of deionized water, is sufficiently stirred, is eventually adding 5 parts of nano-titania photocatalyst and 8 parts of hydroxypropyl methyl is fine
Plain thickener, high-speed stirred are tieed up, standing obtains waterproof ventilating type Concrete Protective Agent.
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, can be sprayed 2 repeatedly
It is secondary.
Embodiment 4
(1) 2 parts of peregals 0 are mixed with deionized water, to being uniformly mixed, be then added 30 parts has heating stirring at 25 DEG C
Machine silane, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 4min vacuum defoamation；
(2) by weight, 18 parts of polyethylene glycol dispersing agent, 8 parts of sodium hydroxide inorganic salts is added in silane emulsion
It in 50 parts of deionized water, is sufficiently stirred, is eventually adding 3 parts of nano-titania photocatalyst and 8 parts of hydroxypropyl methyl
Cellulose thickener, high-speed stirred, standing obtain waterproof ventilating type Concrete Protective Agent.
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, can be sprayed 2 repeatedly
It is secondary.
Embodiment 5
(1) 3 parts of sorbester p17s are mixed with deionized water, to being uniformly mixed, be then added 30 parts has heating stirring at 25 DEG C
Machine silane, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 3min vacuum defoamation；
(2) by weight, 19 parts of polyethylene glycol dispersing agent, 11 parts of sodium hydroxide inorganic salts is added in silane emulsion
It in 60 parts of deionized water, is sufficiently stirred, is eventually adding 4 parts of nano-titania photocatalyst and 7 parts of hydroxypropyl methyl
Cellulose thickener, high-speed stirred, standing obtain waterproof ventilating type Concrete Protective Agent.
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, can be sprayed 3 repeatedly
It is secondary.
Embodiment 6
(1) 2 parts of peregals 0 are mixed with deionized water, to being uniformly mixed, be then added 25 parts has heating stirring at 25 DEG C
Machine silane, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 5min vacuum defoamation；
(2) by weight, 20 parts of polyethylene glycol dispersing agent, 8 parts of waterglass and 70 parts is added in silane emulsion
It in deionized water, is sufficiently stirred, is eventually adding 5 parts of nano-titania photocatalyst and 6 parts of hydroxypropyl methyl cellulose increases
Thick dose, high-speed stirred, standing obtains waterproof ventilating type Concrete Protective Agent.
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, can be sprayed 2 repeatedly
It is secondary.
Embodiment 7
(1) 3 parts of paregal Os of emulsifier are mixed with deionized water, heating stirring is then added to being uniformly mixed at 25 DEG C
25 parts of organosilans, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 5min vacuum defoamation；
(2) by weight, 15 parts of polyethylene glycol dispersing agent, 8 parts of sodium hydroxide inorganic salts is added in silane emulsion
It in 50 parts of deionized water, is sufficiently stirred, is eventually adding 3 parts of nano-titania photocatalyst and 7 parts of hydroxypropyl methyl
Cellulose thickener, high-speed stirred, standing obtain waterproof ventilating type Concrete Protective Agent.
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, is sprayed 2 times repeatedly.
Embodiment 8
(1) 3 parts of sorbester p17s are mixed with deionized water, to being uniformly mixed, be then added 35 parts has heating stirring at 25 DEG C
Machine silane, high-speed stirred 30min obtains silane emulsion to being uniformly mixed at 45 DEG C.
Wherein, the synthesis technology of organosilan are as follows: by vinyltrimethoxysilane, Lactic acid according to weight ratio
2.7: 5 prepare and be added to equipped with blender, thermometer, condenser pipe 250mL three-necked flask in reacted, and in constant temperature
30min is stirred in 80 DEG C of oil bath pan, the dibutyl tin dilaurate and water that weight ratio 0.4 and 0.8 is added stir at 110 DEG C
4h is mixed, is cooled to room temperature, the HDI that 0.6 parts by weight are added stirs 5min vacuum defoamation；
(2) by weight, 20 parts of polyethylene glycol dispersing agent, 8 parts of waterglass and 70 parts is added in silane emulsion
It in deionized water, is sufficiently stirred, is eventually adding 5 parts of nano-titania photocatalyst and 10 parts of hydroxypropyl methyl cellulose increases
Thick dose, high-speed stirred, standing obtains waterproof ventilating type Concrete Protective Agent.
(3) after the completion of concreting, waterproof ventilating type Concrete Protective Agent is sprayed onto the surface of concrete, until mixed
Solidifying soil surface is all soaked, and is stood, until waterproof ventilating type Concrete Protective Agent is absorbed by concrete completely, can be sprayed 3 repeatedly
It is secondary.
Antifouling, waterproof, ventilative, scaling amount detection are carried out using conventional detection method to embodiment 1-8, and using common
As a comparison case, testing result is shown in Table 1 to clear-water concrete protective agent.
1 performance test results list of table
As seen from the above table, the water proof anti-soil effect of waterproof and breathable clear-water concrete protective agent prepared by the present invention is good, breathes freely
Property it is good, and the scaling amount after freeze thawing treatment is small, and binding force intensity is high, and durability is good.
Claims (10)
1. a kind of waterproof ventilating type clear-water concrete protective agent, it is characterised in that: the raw material including following parts by weight: organosilicon
25-35 parts of alkane, 2-3 parts of emulsifier, 15-20 parts of dispersing agent, light touch coal 3-5 parts, 8-12 parts of inorganic salts, 6-10 parts of thickener and go
50-70 parts of ionized water.
2. waterproof ventilating type clear-water concrete protective agent according to claim 1, it is characterised in that: the organosilan
Synthesis technology are as follows: vinyltrimethoxysilane, Lactic acid are added to equipped with blender, thermometer, condenser pipe
It reacts in flask, and is stirred at a temperature of 80 DEG C of thermostatical oil bath, add dibutyl tin dilaurate and water in the process,
4h is stirred at 110 DEG C, is cooled to room temperature, HDI is added and stirs 3~5min vacuum defoamation.
3. waterproof ventilating type clear-water concrete protective agent according to claim 1, it is characterised in that: the emulsifier is department
Disk 80 or paregal O.
4. waterproof ventilating type clear-water concrete protective agent according to claim 1, it is characterised in that: the light touching coal is to receive
Rice titanium dioxide.
5. waterproof ventilating type clear-water concrete protective agent according to claim 1, it is characterised in that: the dispersing agent is poly-
Ethylene glycol.
6. waterproof ventilating type clear-water concrete protective agent according to claim 1, it is characterised in that: the inorganic salts are hydrogen
Sodium oxide molybdena or waterglass.
7. waterproof ventilating type clear-water concrete protective agent according to claim 6, it is characterised in that: the waterglass is mould
The industrial sodium silicate that number is 1.9~2.1.
8. waterproof ventilating type clear-water concrete protective agent according to claim 1, it is characterised in that: the thickener is hydroxyl
Propyl methocel or methylcellulose.
9. waterproof ventilating type clear-water concrete protective agent according to claim 1, it is characterised in that: application method are as follows: to
After the completion of concreting, waterproof ventilating type clear-water concrete protective agent is sprayed onto the surface of concrete, until concrete surface
It all being soaked, stands to waterproof ventilating type Concrete Protective Agent and absorbed completely by concrete, fountain height is 0.125~
0.25kg/m2。
10. a kind of preparation method of waterproof ventilating type clear-water concrete protective agent, characterized by the following steps:
(1) prepare raw material: 25-35 parts of organosilan, 2-3 parts of emulsifier, 15-20 parts of dispersing agent, light touch coal 3-5 parts, inorganic salts
8-12 parts, 6-10 parts of thickener and 50-70 parts of deionized water；
(2) it prepares silane emulsion: emulsifier is mixed with deionized water, stir to being completely dissolved, then in 40~50 DEG C of temperature
Lower dropwise addition organosilan carries out constant temperature stirring later, finally obtains silane emulsion；
(3) it prepares product: dispersing agent, inorganic salts and deionized water being added into silane emulsion, is sufficiently stirred, be eventually adding light touching
Matchmaker and thickener, high-speed stirred, stand to get.
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