CN110590293A - Water-imitation concrete coating and preparation method thereof - Google Patents
Water-imitation concrete coating and preparation method thereof Download PDFInfo
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- CN110590293A CN110590293A CN201911019700.4A CN201911019700A CN110590293A CN 110590293 A CN110590293 A CN 110590293A CN 201911019700 A CN201911019700 A CN 201911019700A CN 110590293 A CN110590293 A CN 110590293A
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- 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
- C04B2111/00508—Cement paints
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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
- 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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- Chemical & Material Sciences (AREA)
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- Structural Engineering (AREA)
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Abstract
The invention discloses a fair-faced concrete imitation coating, which has the technical scheme that the coating comprises a component A, a component B and a component C; the component A comprises the following components in parts by weight: 40-50 parts of acrylic polymer emulsion, 5-10 parts of functional auxiliary agent, 0.5-1 part of hydroxyethyl cellulose ether, 1-3 parts of gray colorant, 1-5 parts of covering agent, 1-3 parts of anti-settling agent, 3-5 parts of coupling agent, 1-3 parts of flame retardant, 0.5-0.8 part of defoaming agent and 25-35 parts of deionized water; the component B is a curing agent; the component C is a mixture of EPDM powder and EPS particles; before use, the weight ratio of 100 (4-6): (40-50) uniformly mixing the component A, the component B and the component C, and applying the mixture to a construction base surface. The coating has the advantage of convenient construction, and the preferred scheme is doped with the gray colorant prepared by taking cement and polylactic acid as main raw materials, so that the coating does not contain toxic dye, is more environment-friendly, greatly reduces the construction operation difficulty, and ensures that the decorative effect of the clear concrete is easily reproduced. The invention also correspondingly discloses a preparation method of the as-cast finish concrete coating.
Description
Technical Field
The invention relates to the technical field of architectural decoration coatings, in particular to an imitation fair-faced concrete coating and a preparation method thereof.
Background
The fair-faced concrete is also called as decorative concrete because of the extremely good decorative effect. After the concrete is poured, no material such as coating, tile sticking, stone sticking and the like is needed, and the decorative effect of plain and industrial style is achieved. However, as the surface of the wall body decorated by the fair-faced concrete is not basically coated with other materials after the construction of the fair-faced concrete, the problem of dusting is very easy to occur in the use process of the wall body decorated by the fair-faced concrete.
In order to solve the problem of ash formation of fair-faced concrete, the existing solutions mainly comprise the following two types:
1. the transparent waterproof protective film is sprayed on the surface of the fair-faced concrete, so that the construction cost is increased, and the problems of bonding fastness between the waterproof film and the fair-faced concrete layer, VOC (volatile organic compounds) release and the like need to be considered;
2. the bare concrete imitating coating is used to replace bare concrete layer and the coating layer is used to imitate the decoration effect of bare concrete. For example, the Chinese patent with the publication number of CN102153949B discloses a clear water concrete imitation coating which consists of a base coat, a middle coat and a top coat, wherein the base coat is an organic silicon polymer; the middle coating is a composition consisting of a self-crosslinking polymer, a filler, a pigment, other auxiliary agents and water; the surface coating is a fluorosilicone resin polymer; the bottom coating is a sealing layer and can play a role in sealing pores of the base material; the middle coating is a coloring layer and can play a role of approaching the effect of the required fair-faced concrete; the surface coating is a cover coat and plays a role in resisting weather and contamination.
However, the fair-faced concrete coating of the above patent still has the following defects:
1) the construction is divided into a bottom layer, a middle layer and a surface layer, and the construction of the next layer can be carried out only after the maintenance and the drying are carried out after the construction of one layer is finished, so that the complexity of construction steps and the construction period are increased;
2) iron oxide pigments, phthalocyanine pigments and the like are used as coloring agents, the iron oxide pigments are mainly divided into four coloring pigments of iron oxide red, iron yellow, iron black and iron brown, the phthalocyanine pigments are most commonly blue pigments and green pigments, all the pigments with strong colors are used, the gray similar to that of fair-faced concrete is difficult to prepare by using the oxide pigments and the phthalocyanine pigments, hue or color deviation is easy to occur, the pigment proportion needs to be strictly controlled even if the preparation is successful, and otherwise, the problems of greenish, bluish, reddish and even blackened colors are easy to occur. Therefore, the coating has high construction requirements, extremely high requirements on coating proportioning control, batch scraping thickness during construction, bottom layer covering performance and the like, and otherwise, the gray visual effect of cement cannot be reproduced;
3) phthalocyanine pigments are often present in the form of complexes of phthalocyanine with metals such as copper, cobalt, and nickel, and the introduction of heavy metals such as copper into paints also presents certain environmental and health risks.
Therefore, how to develop a fair-faced concrete imitation coating with simpler and more efficient construction is a problem to be solved in the industry.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the as-cast finish concrete coating which has the advantages of convenience in construction, environmental friendliness and safety.
In order to achieve the purpose, the invention provides the following technical scheme:
an as-cast finish concrete-imitating coating comprises a component A, a component B and a component C;
the component A comprises the following components in parts by weight,
40-50 parts of acrylic polymer emulsion
5-10 parts of functional auxiliary agent
0.5-1 part of hydroxyethyl cellulose ether
1-3 parts of gray colorant
1-5 parts of covering agent
1-3 parts of anti-settling agent
3-5 parts of coupling agent
1-3 parts of flame retardant
0.5 to 0.8 portion of defoaming agent
25-35 parts of deionized water;
the component B is a curing agent;
the component C is a mixture of EPDM powder and EPS particles;
before use, the mass ratio of (4-6) to (100): (40-50) uniformly mixing the component A, the component B and the component C, and applying the mixture to a construction base surface.
By adopting the technical scheme, the component A, the component B and the component C are uniformly mixed according to the proportion during construction, and then the mixture is directly applied to a pretreated construction base surface, and the decorative effect of the fair-faced concrete style is obtained after curing to drying. Before construction, the construction base surface can be cleaned by clear water to remove oil stains, dust and the like, so that the adhesion fastness of the fair-faced concrete simulating coating is improved.
In the component A of the coating, the acrylic polymer emulsion is mixed with the component B, and a coating film is formed after reaction and solidification, so that the coating has good adhesion fastness and toughness, and the formed coating does not have the problems of dusting and the like; the functional auxiliary agent and the hydroxyethyl cellulose ether are used for improving the water resistance of the coating, and the hydroxyethyl cellulose ether also has the function of adjusting the viscosity of the coating; the grey colorant and the covering agent are used for reproducing the color of the fair-faced concrete in a matching way and reducing the plain grey visual effect of the fair-faced concrete; the anti-settling agent is used for increasing the dispersion uniformity and dispersion stability of components such as a coloring agent, a covering agent and the like, so that the color of a coating formed after the coating is coated is uniform; the coupling agent is used for improving the bonding fastness between the coating and a construction base surface, so that the coating is not easy to crack and bubble after construction, and the service durability of the coating is improved; the flame retardant is used for improving the flame retardant property of the coating, so that the as-cast finish concrete coating is suitable for wall decoration construction in general occasions; the defoaming agent is used for breaking bubbles generated in the coating mixing process, and reducing the problems of water seepage, bubbling, cracking and the like caused by the existence of cavities in the coating. The component B is a curing agent, and a conventional amine curing agent can be selected. The component C is a mixture of granular EPDM powder and EPS granules, and mainly has three functions: the thickness and the compactness of the coating are increased, the diffuse reflection degree of the surface of the coating is increased, and the granular feeling and the rough wind decoration effect of the fair-faced concrete are restored; secondly, the impact absorption capacity of the coating is improved, so that the coating is not easy to damage due to impact, collision and the like; and thirdly, the heat insulation and sound insulation effects of the coating are improved.
Further, the acrylic polymer emulsion is formed by mixing an elastic emulsion and a rigid emulsion according to the mass ratio of (0.4-0.6) to 1.
By adopting the technical scheme, the mixed emulsion has better film forming property, and the prepared coating has good adhesion fastness, good water resistance and good aging resistance on a construction base surface.
Further, the functional auxiliary agent is an acrylic acid functionalized organic silicon prepolymer.
Through adopting above-mentioned technical scheme, can effectively promote the waterproof nature of coating.
Further, the gray colorant is prepared by the following process,
p1, dissolving 100 parts by weight of dried polylactic acid in 500 parts by weight of organic solvent, adding 50 parts by weight of cement dry powder, and performing ultrasonic dispersion for 15-20min to obtain uniform suspension;
p2, spraying and granulating the suspension obtained in the step P1 at the temperature of 100 ℃ and 120 ℃ to obtain coarse coloring particles;
p3, grinding the coarse coloring particles obtained in the step P2, and sieving the coarse coloring particles with a 60-mesh sieve to obtain the gray coloring agent.
By adopting the technical scheme, the obtained gray colorant is basically consistent with the gray hue of concrete, and when the gray colorant is used for coloring the paint, even if small-amplitude configuration deviation occurs in the operation process, the integral coloring effect is not influenced, so that the paint disclosed by the invention is easier to construct. Meanwhile, as cement and polylactic acid are adopted as main raw materials for preparing the gray colorant, the cost is low, and the cement and the polylactic acid do not contain heavy metal elements, so that the cement is better green and environment-friendly. The polylactic acid has a sealing effect after being attached to the surface of cement particles, so that the gray colorant cannot react with water in a coating formula immediately after being doped into the coating, and sufficient time is provided for coating configuration and construction. The organic solvents used in the preparation of the gray colorant are also substantially removed during the spray granulation process, so that the coating produced is free of VOCs.
Further, the covering agent is silicon dioxide or titanium dioxide.
By adopting the technical scheme, the silicon dioxide and the titanium dioxide are both inorganic powder or particles with good covering property, which is beneficial to covering the defects of the base layer and the like and ensures that the gray texture of the fair-faced concrete is easily reproduced. Meanwhile, the silicon dioxide and the titanium dioxide also have the effect of improving the bonding fastness between the coating and a construction base surface, and also have the promotion effect of improving the aging resistance of the coating.
Further, the anti-settling agent is fumed silica.
By adopting the technical scheme, the dispersion stability of the solid components in the coating system is favorably improved, and the coating can obtain uniform and consistent decorative effect after being applied to a construction base surface.
Further, the coupling agent is a silane coupling agent.
By adopting the technical scheme, the bonding fastness between the coating and the construction base surface can be effectively improved, so that the coating is not easy to bubble, crack or peel after construction.
Further, the flame retardant is prepared by the following process:
adding 30 parts by weight of diphenyl phosphoric acid, 30 parts by weight of propylene glycol and 30 parts by weight of ethylene glycol into a reactor, and heating to 60-70 ℃ under the condition of stirring until the diphenyl phosphoric acid is completely dissolved; preserving heat, dropwise adding 200 parts by weight of N, N-dimethylacetamide while stirring, and reacting for 1-1.5 h; adding water, stirring, standing for layering, and taking oil phase to obtain the flame retardant.
By adopting the technical scheme, the prepared flame retardant can greatly improve the flame retardance of the coating, so that the coating can meet the flame retardant requirement of conventional architectural decoration.
Further, the defoaming agent is a silicone defoaming agent.
Through adopting above-mentioned technical scheme, difficult bubble that produces in the configuration coating process, the cavity is difficult for remaining in the coating after the construction, has promoted the waterproof nature of coating, also makes the coating be difficult for fracture, tympanic bulla.
The invention also aims to provide a preparation method of the fair-faced concrete coating, and the fair-faced concrete coating prepared by the method has the advantages of capability of replacing fair-faced concrete cement mortar, convenience in construction, environmental friendliness and no dust.
In order to achieve the purpose, the invention provides the following technical scheme:
the preparation method of the as-cast finish concrete coating,
the preparation of the component A comprises the following steps:
s1, adding the hydroxyethyl cellulose ether, the coupling agent and the defoaming agent which are weighed in proportion into deionized water, and uniformly stirring;
s2, adding the functional auxiliary agent, the acrylic polymer emulsion and the flame retardant into the mixture obtained in the step S1, and stirring and dispersing the mixture evenly;
s3, adding the gray colorant, the covering agent and the anti-settling agent into the mixture obtained in the step S2, and uniformly stirring to obtain a component A;
the component B is a curing agent;
preparation of component C: EPDM powder and EPS particles are mixed according to the mass ratio of 1: (0.5-0.8) and mixing uniformly.
In conclusion, the invention has the following beneficial effects:
1. during construction, the component A, the component B and the component C are uniformly mixed according to the proportion and then directly applied to a pretreated construction base surface, and the fair-faced concrete is cured to be dried to obtain the decorative effect of the style of the fair-faced concrete, has simple construction steps and short construction period, and is suitable for various common building decoration constructions;
2. the gray colorant is prepared by taking cement and polylactic acid as main raw materials, has low cost, no toxicity and harm, does not contain heavy metal, has natural color, does not influence the whole hue even if small-amplitude proportion deviation occurs during construction, is beneficial to reappearing the decorative effect of the fair-faced concrete, and reduces the difficulty of coating preparation and construction operation;
3. the flame retardant is prepared by taking diphenyl phosphate, an organic solvent and N, N-dimethylacetamide as raw materials, so that the flame retardant property of the coating is greatly improved, and the coating is suitable for building wall decoration in general occasions;
4. the component C is mixed with EPDM powder and EPS particles, and is mixed with the A, B component in proportion before coating construction, so that the coating is easy to disperse uniformly, the coating has excellent impact-resistant absorption capacity, and the heat-insulating, sound-insulating and flame-retardant properties of the coating are further improved.
Drawings
FIG. 1 is a flow chart of the process for preparing the gray colorant of the example;
FIG. 2 is a flow chart of a process for preparing a flame retardant in the examples;
FIG. 3 is a flow chart of a preparation process of the imitation fair-faced concrete in the embodiment; .
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A source of material
TABLE 1 raw materials Source Table
Preparation of Gray colorants
1) Preparation of gray colorant a, see fig. 1, includes the following steps:
p1, dissolving 10 kg of dry polylactic acid in 50 kg of tetrahydrofuran, adding 5 kg of cement dry powder, and ultrasonically dispersing for 15min to obtain a uniform suspension; the cement is P.O42.5R portland cement; wherein tetrahydrofuran can be replaced by organic solvents such as acetone and ethyl acetate;
p2, spraying and granulating the suspension obtained in the step P1 at the temperature of 100 ℃ to obtain coarse colored particles;
p3, grinding the coarse coloring particles obtained in the step P2, and sieving the coarse coloring particles with a 60-mesh sieve to obtain the gray colorant A.
2) Preparation of the grey colorant B, see fig. 1, includes the following steps:
p1, dissolving 10 kg of dry polylactic acid in 50 kg of tetrahydrofuran, adding 5 kg of cement dry powder, and ultrasonically dispersing for 20min to obtain a uniform suspension; wherein tetrahydrofuran can be replaced by organic solvents such as acetone and ethyl acetate;
p2, spraying and granulating the suspension obtained in the step P1 at the temperature of 120 ℃ to obtain coarse colored particles;
p3, grinding the coarse coloring particles obtained in the step P2, and sieving the coarse coloring particles with a 60-mesh sieve to obtain a gray colorant B.
Preparation of flame retardant
1) Preparation of flame retardant a, referring to fig. 2, comprises the following steps:
adding 3 kg of diphenyl phosphoric acid, 3 kg of propylene glycol and 3 kg of ethylene glycol into a reactor, purging nitrogen, and heating to 70 ℃ under stirring until the diphenyl phosphoric acid is completely dissolved; keeping the temperature, dropwise adding 20 kg of N, N-dimethylacetamide while stirring, and reacting for 1 h; adding 25 kg of water, stirring, standing and demixing, and taking an oil phase to obtain the flame retardant A.
2) Preparation of flame retardant B, referring to fig. 2, comprising the following steps:
adding 3 kg of diphenyl phosphoric acid, 3 kg of propylene glycol and 3 kg of ethylene glycol into a reactor, purging nitrogen, and heating to 60 ℃ under stirring until the diphenyl phosphoric acid is completely dissolved; keeping the temperature, dropwise adding 20 kg of N, N-dimethylacetamide while stirring, and reacting for 1.5 h; adding 25 kg of water, stirring, standing and demixing, and taking an oil phase to obtain the flame retardant B.
Example 1:
the as-cast finish concrete coating comprises a component A, a component B and a component C, and is prepared by referring to the process flow shown in figure 3:
the preparation of the component A comprises the following steps:
s1, adding 0.5 kg of hydroxyethyl cellulose ether, 3 kg of silane coupling agent a-1100, and 0.5 kg of silicone defoamer D-10X to 25 kg of deionized water, and uniformly stirring;
s2, continuing to add 5 kg of Silmer ACR D208, 40 kg of acrylic polymer emulsion and 1 kg of flame retardant A to the mixture obtained in the step S1, and stirring to disperse uniformly; the acrylic polymer emulsion is formed by mixing pure acrylic elastic emulsion PRIML ™ AC-855 and acrylic polymer emulsion APR-968LO according to the mass ratio of 0.4: 1;
s3, adding 1 kg of gray colorant a, 1 kg of silica and 1 kg of fumed silica QS-20 to the mixture from step S2, and stirring to obtain a component a;
the component B is an amine curing agent, and 2-methylpentamethylenediamine is selected in the embodiment;
preparation of component C: EPDM powder and EPS particles are mixed according to the mass ratio of 1: 0.5, and mixing uniformly.
Before construction, the component A, the component B and the component C are uniformly mixed according to the mass ratio of 100:4:50, then scraped on a construction base surface in batch, and cured to be dried. The batch scraping thickness can be adjusted according to the requirement, and the batch scraping can be carried out for a single time or in batches in a way that the total thickness meets the design requirement.
Example 2:
the as-cast finish concrete coating comprises a component A, a component B and a component C, and is prepared by referring to the process flow shown in figure 3:
the preparation of the component A comprises the following steps:
s1, adding 0.6 kg of hydroxyethyl cellulose ether, 4 kg of silane coupling agent a-1100, and 0.6 kg of silicone defoamer D-10X to 28 kg of deionized water, and uniformly stirring;
s2, continuing to add 6 kg of Silmer ACR D208, 45 kg of acrylic polymer emulsion and 2 kg of flame retardant A into the mixture obtained in the step S1, and stirring to disperse uniformly; the acrylic polymer emulsion is formed by mixing pure acrylic elastic emulsion PRIML ™ AC-855 and acrylic polymer emulsion APR-968LO according to the mass ratio of 0.5: 1;
s3, adding 2 kg of gray colorant a, 2 kg of silica and 2 kg of fumed silica QS-20 to the mixture from step S2, and stirring to obtain a component a;
the component B is an amine curing agent, and 2-methylpentamethylenediamine is selected in the embodiment;
preparation of component C: EPDM powder and EPS particles are mixed according to the mass ratio of 1: 0.6, and mixing uniformly.
Before construction, the component A, the component B and the component C are uniformly mixed according to the mass ratio of 100:5:45, then scraped on a construction base surface in batch, and cured to be dry. The batch scraping thickness can be adjusted according to the requirement, and the batch scraping can be carried out for a single time or in batches in a way that the total thickness meets the design requirement.
Example 3:
the as-cast finish concrete coating comprises a component A, a component B and a component C, and is prepared by referring to the process flow shown in figure 3:
the preparation of the component A comprises the following steps:
s1, adding 0.8 kg of hydroxyethyl cellulose ether, 4 kg of silane coupling agent a-1100, and 0.7 kg of silicone defoamer D-10X to 32 kg of deionized water, and uniformly stirring;
s2, continuing to add 8 kg of Silmer ACR D208, 45 kg of acrylic polymer emulsion and 2 kg of flame retardant B into the mixture obtained in the step S1, and stirring to disperse uniformly; the acrylic polymer emulsion is formed by mixing pure acrylic elastic emulsion PRIML ™ AC-855 and acrylic polymer emulsion APR-968LO according to the mass ratio of 0.5: 1;
s3, adding 2 kg of gray colorant a, 2 kg of titanium dioxide and 2 kg of fumed silica QS-20 to the mixture from step S2, and stirring to obtain a component a;
the component B is an amine curing agent, and 2-methylpentamethylenediamine is selected in the embodiment;
preparation of component C: and uniformly mixing the EPDM powder and the EPS particles according to the mass ratio of 1: 0.7.
Before construction, the component A, the component B and the component C are uniformly mixed according to the mass ratio of 100:5:45, then scraped on a construction base surface in batch, and cured to be dry. The batch scraping thickness can be adjusted according to the requirement, and the batch scraping can be carried out for a single time or in batches in a way that the total thickness meets the design requirement.
Example 4:
the as-cast finish concrete coating comprises a component A, a component B and a component C, and is prepared by referring to the process flow shown in figure 3:
the preparation of the component A comprises the following steps:
s1, adding 1 kg of hydroxyethyl cellulose ether, 5 kg of silane coupling agent a-1100, and 0.8 kg of organosilicon antifoaming agent D-10X to 35 kg of deionized water, and stirring uniformly;
s2, continuing to add 10 kg of the Silmer ACR D208, 50 kg of the acrylic polymer emulsion, and 3 kg of the flame retardant B to the mixture obtained in step S1, and stirring to disperse them uniformly; the acrylic polymer emulsion is formed by mixing pure acrylic elastic emulsion PRIML ™ AC-855 and acrylic polymer emulsion APR-968LO according to the mass ratio of 0.6: 1;
s3, adding 3 kg of gray colorant a, 5 kg of titanium dioxide and 3 kg of fumed silica QS-20 to the mixture from step S2, and stirring to obtain a component a;
the component B is an amine curing agent, and 2-methylpentamethylenediamine is selected in the embodiment;
preparation of component C: and uniformly mixing the EPDM powder and the EPS particles according to the mass ratio of 1: 0.8.
Before construction, the component A, the component B and the component C are uniformly mixed according to the mass ratio of 100:6:40, then the mixture is scraped on a construction base surface, and the construction is maintained until the mixture is dried. The batch scraping thickness can be adjusted according to the requirement, and the batch scraping can be carried out for a single time or in batches in a way that the total thickness meets the design requirement.
Example 5:
an imitation fair-faced concrete coating is based on example 1 and is different from example 1 only in that: the gray colorant used is gray colorant B.
Example 6:
a kind of imitative fair-faced concrete coating, based on example 2, the difference with example 2 is only: the gray colorant used is gray colorant B.
Example 7:
a kind of imitative fair-faced concrete coating, based on example 3, the difference with example 3 is only: the gray colorant used is gray colorant B.
Example 8:
a kind of imitative fair-faced concrete coating, based on example 4, the difference with example 4 is only: the gray colorant used is gray colorant B.
Comparative examples 1 to 3:
examples 1-3 of the chinese patent with publication No. CN 102153949B.
Performance testing
The following tests were carried out using examples 1 to 8 and comparative examples 1 to 3 as samples, respectively
1) Water resistance: measured according to GB/T1733 + 1993 'determination method for measuring water resistance of coating film';
2) alkali resistance: the alkali resistance of the coating of the architectural coating is measured according to GB 9265-1988;
3) washing and brushing resistance: measured according to GB/T9266-2009 'determination of washability of architectural coating coatings';
4) resistance to artificial weather aging: according to GB/T14522-:
drying for 8h in the exposure stage
Fluorescent UV lamp type UVA-340
Irradiance of 0.76 +/-0.02W/m2╳nm
Control wavelength of 340nm
The temperature of a blackboard thermometer is 60 +/-3 ℃;
5) impact absorption: reference to BS EN14808-2005 assay;
6) VOC: measured with reference to ASTM D2369;
7) coefficient of thermal conductivity: reference is made to GB/T10295.
The results of the experiments are reported in the following table:
TABLE 2 Experimental results of water resistance, alkali resistance, scrub resistance and artificial weather aging resistance
TABLE 3 table of impact absorption, VOC, thermal conductivity experiment results
As can be seen from the experimental data in Table 2, the as-cast finish concrete coating has excellent water resistance, alkali resistance, washing resistance and artificial climate aging resistance, and is suitable for directly replacing as-cast finish concrete for building veneer construction.
As can be seen from the data in Table 3, the water-imitation concrete coating disclosed by the invention has no VOC detected and has the advantage of environmental protection. Meanwhile, on the premise of equal thickness, the coating obtained by the construction of the as-cast finish concrete coating has higher impact absorption capacity, so that the coating is not easy to crack due to mechanical impact after construction and is more durable in use. Moreover, the data show that the water-imitation concrete coating also has extremely low thermal conductivity coefficient, and can play an excellent heat insulation effect after being applied to a base surface.
The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading this specification, but only fall within the scope of the claims of the present invention.
Claims (10)
1. An as-cast finish-imitated concrete coating is characterized in that: comprises a component A, a component B and a component C;
the component A comprises the following components in parts by weight,
40-50 parts of acrylic polymer emulsion
5-10 parts of functional auxiliary agent
0.5-1 part of hydroxyethyl cellulose ether
1-3 parts of gray colorant
1-5 parts of covering agent
1-3 parts of anti-settling agent
3-5 parts of coupling agent
1-3 parts of flame retardant
0.5 to 0.8 portion of defoaming agent
25-35 parts of deionized water;
the component B is a curing agent;
the component C is a mixture of EPDM powder and EPS particles;
before use, the mass ratio of (4-6) to (100): (40-50) uniformly mixing the component A, the component B and the component C, and applying the mixture to a construction base surface.
2. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the acrylic polymer emulsion is formed by mixing an elastic emulsion and a rigid emulsion according to the mass ratio of (0.4-0.6) to 1.
3. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the functional auxiliary agent is an acrylic acid functionalized organic silicon prepolymer.
4. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the grey colorant is prepared by a process,
p1, dissolving 100 parts by weight of dried polylactic acid in 500 parts by weight of organic solvent, adding 50 parts by weight of cement dry powder, and performing ultrasonic dispersion for 15-20min to obtain uniform suspension;
p2, spraying and granulating the suspension obtained in the step P1 at the temperature of 100 ℃ and 120 ℃ to obtain coarse coloring particles;
p3, grinding the coarse coloring particles obtained in the step P2, and sieving the coarse coloring particles with a 60-mesh sieve to obtain the gray coloring agent.
5. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the covering agent is silicon dioxide or titanium dioxide.
6. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the anti-settling agent is fumed silica.
7. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the coupling agent is a silane coupling agent.
8. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the flame retardant is prepared by the following process:
adding 30 parts by weight of diphenyl phosphoric acid, 30 parts by weight of propylene glycol and 30 parts by weight of ethylene glycol into a reactor, and heating to 60-70 ℃ under the condition of stirring until the diphenyl phosphoric acid is completely dissolved; preserving heat, dropwise adding 200 parts by weight of N, N-dimethylacetamide while stirring, and reacting for 1-1.5 h; adding water, stirring, standing for layering, and taking oil phase to obtain the flame retardant.
9. The imitation fair-faced concrete coating of claim 1, which is characterized in that: the defoaming agent is an organic silicon defoaming agent.
10. The method for preparing the as-cast finish concrete coating as recited in any one of claims 1 to 9,
the preparation of the component A comprises the following steps:
s1, adding the hydroxyethyl cellulose ether, the coupling agent and the defoaming agent which are weighed in proportion into deionized water, and uniformly stirring;
s2, adding the functional auxiliary agent, the acrylic polymer emulsion and the flame retardant into the mixture obtained in the step S1, and stirring and dispersing the mixture evenly;
s3, adding the gray colorant, the covering agent and the anti-settling agent into the mixture obtained in the step S2, and uniformly stirring to obtain a component A;
the component B is a curing agent;
preparation of component C: EPDM powder and EPS particles are mixed according to the mass ratio of 1: (0.5-0.8) and mixing uniformly.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149710A (en) * | 2021-04-14 | 2021-07-23 | 石家庄市长安育才建材有限公司 | Concrete surface modifier and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575351A (en) * | 2009-05-30 | 2009-11-11 | 山东天一化学有限公司 | Method for preparing phosphorus-nitrogen expanding fire retardant |
| CN102329112A (en) * | 2011-06-27 | 2012-01-25 | 浙江鲁班建筑防水有限公司 | Colored polymer cement underwater paint |
| EP3004028A1 (en) * | 2013-05-28 | 2016-04-13 | Zavod za Gradbenistvo Slovenije | Method for reinforcing porous construction materials and use of calcium acetoacetate solution to this aim |
| CN108795202A (en) * | 2018-07-10 | 2018-11-13 | 太仓市美航涂料有限公司 | A kind of sound-insulating and heat-insulating elasticity stone paint |
| CN109400012A (en) * | 2018-10-30 | 2019-03-01 | 河北晨阳工贸集团有限公司 | A kind of priming paint and the middle imitative clear-water concrete and preparation method thereof for applying unification |
-
2019
- 2019-10-24 CN CN201911019700.4A patent/CN110590293B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575351A (en) * | 2009-05-30 | 2009-11-11 | 山东天一化学有限公司 | Method for preparing phosphorus-nitrogen expanding fire retardant |
| CN102329112A (en) * | 2011-06-27 | 2012-01-25 | 浙江鲁班建筑防水有限公司 | Colored polymer cement underwater paint |
| EP3004028A1 (en) * | 2013-05-28 | 2016-04-13 | Zavod za Gradbenistvo Slovenije | Method for reinforcing porous construction materials and use of calcium acetoacetate solution to this aim |
| CN108795202A (en) * | 2018-07-10 | 2018-11-13 | 太仓市美航涂料有限公司 | A kind of sound-insulating and heat-insulating elasticity stone paint |
| CN109400012A (en) * | 2018-10-30 | 2019-03-01 | 河北晨阳工贸集团有限公司 | A kind of priming paint and the middle imitative clear-water concrete and preparation method thereof for applying unification |
Non-Patent Citations (1)
| Title |
|---|
| 鲍治宇: "《膨胀阻燃技术及应用》", 28 February 2005, 哈尔滨工业大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149710A (en) * | 2021-04-14 | 2021-07-23 | 石家庄市长安育才建材有限公司 | Concrete surface modifier and preparation method thereof |
| CN113149710B (en) * | 2021-04-14 | 2022-04-01 | 石家庄市长安育才建材有限公司 | Concrete surface modifier and preparation method thereof |
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