CN112010622B - Silicate latex inorganic coating - Google Patents
Silicate latex inorganic coating Download PDFInfo
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- CN112010622B CN112010622B CN202010854832.5A CN202010854832A CN112010622B CN 112010622 B CN112010622 B CN 112010622B CN 202010854832 A CN202010854832 A CN 202010854832A CN 112010622 B CN112010622 B CN 112010622B
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a silicate latex inorganic coating, which is prepared by skillfully adding redispersible latex powder, quartz sand and cement-based permeable crystallization master batch into silicate to establish a main body system of an inorganic coating formula, and then combining an active agent, a defoaming agent, bentonite, a dispersing agent, dodecyl alcohol ester and n-octadecyl beta- (4-hydroxy-3, 5-di-tert-butylphenyl) propionate, wherein the dodecyl alcohol ester is absorbed on emulsion particles when being added into the latex paint, softens the particles and causes better fusion when the paint is coated, the dodecyl alcohol ester cannot be absorbed into permeable matrixes, but can effectively coalesce the emulsion particles, and meanwhile, the dodecyl alcohol ester has a low freezing point and does not need special treatment in winter, beta- (4-hydroxy-3), the 5-di-tert-butylphenyl) propionic acid n-octadecyl ester has the characteristics of good compatibility, small volatility, high antioxidant efficiency, no coloring, no pollution and washing resistance.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a silicate latex inorganic coating.
Background
The coating construction is used as an important working link in building construction, which not only relates to the aesthetic property of buildings, but also relates to the safety of the buildings, especially along with the gradual change of the current building design, no matter public buildings or private buildings, the functions of the coating are more and more endowed, the safety problems needing to be considered are more and more, for example, the problems of fire prevention, mildew prevention, moisture prevention and the like, and most of the coatings sold in the market at present have the use limitations of weak weather resistance, easy bacterial breeding in a humid environment, inconvenient construction, odor stimulation and the like.
Disclosure of Invention
Aiming at the condition of the prior art, the invention aims to provide the silicate latex inorganic coating which has high cost performance, is convenient to construct, has good weather resistance and good flame retardant property and is environment-friendly.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the silicate latex inorganic coating comprises the following components in parts by weight:
the silicate comprises more than one of sodium silicate, potassium silicate or lithium silicate.
As a possible embodiment, further, the active agent is sodium tripolyphosphate.
As a possible implementation mode, the re-dispersible latex powder is vinyl acetate and ethylene copolymer rubber (Vac/E), ethylene, vinyl chloride and vinyl laurate ternary copolymer rubber powder (E/Vc/VL), vinyl acetate, ethylene and higher fatty acid vinyl ester ternary copolymer rubber powder (Vac/E/VeoVa), vinyl acetate and higher fatty acid vinyl ester copolymer rubber powder (Vac/VeoVa), acrylate and styrene copolymer rubber powder (A/S) or vinyl acetate, acrylate and higher fatty acid vinyl ester ternary copolymer rubber powder.
As a possible embodiment, further, the dispersant is one of triethylhexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, guar gum and fatty acid polyglycol ester.
As a possible implementation mode, the coating further comprises 0.1-0.5 part of dilauryl thiodipropionate (DLTP).
As a possible implementation manner, furthermore, half of the quartz sand is 100-mesh quartz sand, and half of the quartz sand is 200-mesh quartz sand.
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing silicate, redispersible latex powder, a cement-based permeable crystallization master batch, an active agent, a defoaming agent, bentonite, a dispersing agent, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 50-80 r/min for 2-5 min to prepare a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at a stirring speed of 50-80 r/min for 2-5 min, then adding the remaining half of quartz sand, and then continuing to stir at a stirring speed of 80-120 r/min for 1-2 min to prepare a mixed system B;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
As a possible embodiment, further, the quartz sand added in step (2) is 200 mesh quartz sand, and the quartz sand added later is 100 mesh quartz sand.
An architectural coating, which comprises the silicate latex inorganic coating.
The construction method of the building coating comprises the steps of uniformly mixing the building coating and water according to a preset metering ratio, and coating the mixture on the surface of a building material.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: according to the scheme, redispersible latex powder, quartz sand and cement-based permeable crystallization master batch are ingeniously added into silicate to establish a main body system of an inorganic coating formula, and then an active agent, a defoaming agent, bentonite, a dispersing agent, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate are combined to prepare the organic coating which is good in stability, flame retardance and weather resistance and environment-friendly, wherein the dodecyl alcohol ester is very good in hydrolysis stability and compatibility and can be used together with various types of latex including pure propionic acid emulsion with high pH value, and in addition, when the dodecyl alcohol ester is added into the latex paint, the dodecyl alcohol ester is absorbed on emulsion particles, the particles are softened and better fusion is caused during paint. It can not be absorbed into permeable matrix, but can effectively coalesce emulsion particles, at the same time, the freezing point of dodecyl alcohol ester is very low, it has no need of special treatment in winter, and the dodecyl alcohol ester can be easily mixed into the emulsion, and under the condition of higher content it does not affect stability of coating material, and the n-octadecyl beta- (4-hydroxy-3, 5-di-tert-butylphenyl) propionate has the characteristics of good compatibility, small volatility, high antioxidant efficiency, no coloration, no pollution and washing resistance, and its auxiliary antioxidant dilauryl thiodipropionate (DLTP) can be matched, also can be used together with UV absorber so as to further raise its ageing resistance.
Detailed Description
The silicate latex inorganic coating comprises the following components in parts by weight:
as a possible embodiment, further, the silicate comprises one or more of sodium silicate, potassium silicate, or lithium silicate.
As a possible embodiment, further, the active agent is sodium tripolyphosphate.
As a possible implementation mode, the re-dispersible latex powder is vinyl acetate and ethylene copolymer rubber (Vac/E), ethylene, vinyl chloride and vinyl laurate ternary copolymer rubber powder (E/Vc/VL), vinyl acetate, ethylene and higher fatty acid vinyl ester ternary copolymer rubber powder (Vac/E/VeoVa), vinyl acetate and higher fatty acid vinyl ester copolymer rubber powder (Vac/VeoVa), acrylate and styrene copolymer rubber powder (A/S) or vinyl acetate, acrylate and higher fatty acid vinyl ester ternary copolymer rubber powder.
As a possible embodiment, further, the dispersant is one of triethylhexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, guar gum and fatty acid polyglycol ester.
As a possible implementation mode, the coating further comprises 0.1-0.5 part of dilauryl thiodipropionate (DLTP).
As a possible implementation manner, furthermore, half of the quartz sand is 100-mesh quartz sand, and half of the quartz sand is 200-mesh quartz sand.
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing silicate, redispersible latex powder, a cement-based permeable crystallization master batch, an active agent, a defoaming agent, bentonite, a dispersing agent, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 50-80 r/min for 2-5 min to prepare a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at a stirring speed of 50-80 r/min for 2-5 min, then adding the remaining half of quartz sand, and then continuing to stir at a stirring speed of 80-120 r/min for 1-2 min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
Example 1
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing sodium silicate, redispersible latex powder, a cement-based permeable crystallization master batch, sodium tripolyphosphate, a defoaming agent, bentonite, triethylhexylphosphoric acid, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 50r/min for 5min to prepare a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at a stirring speed of 50r/min for 5min, then adding the remaining half of quartz sand, and then continuing to stir at a stirring speed of 80r/min for 2min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
Wherein the addition amount of the components in each step is as follows:
the re-dispersible latex powder is vinyl acetate and ethylene copolymer gel (Vac/E).
Example 2
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing silicate, redispersible latex powder, cement-based permeable crystallization master batch, sodium tripolyphosphate, a defoaming agent, bentonite, sodium dodecyl sulfate, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 80r/min for 2min to obtain a mixed system A;
(2) adding half of quartz sand into the mixed system A, continuing to stir at the stirring speed of 80r/min for 2min, then adding the remaining half of quartz sand, and continuing to stir at the stirring speed of 120r/min for 1min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
Wherein the addition amount of the components in each step is as follows:
the re-dispersible latex powder is ethylene, vinyl chloride and vinyl laurate terpolymer rubber powder (E/Vc/VL).
Example 3
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing silicate, redispersible latex powder, cement-based permeable crystallization master batch, sodium tripolyphosphate, a defoaming agent, bentonite, methyl amyl alcohol, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 60r/min for 3min to obtain a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at a stirring speed of 60r/min for 3min, then adding the remaining half of quartz sand, and then continuing to stir at a stirring speed of 100r/min for 2min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
Wherein the addition amount of the components in each step is as follows:
the re-dispersible latex powder is ternary copolymer rubber powder (Vac/E/VeoVa) of vinyl acetate, ethylene and higher fatty acid vinyl ester.
Example 4
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing silicate, redispersible latex powder, cement-based permeable crystallization master batch, sodium tripolyphosphate, a defoaming agent, bentonite, a cellulose derivative, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 80r/min for 2min to obtain a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at a stirring speed of 50r/min for 5min, then adding the remaining half of quartz sand, and then continuing to stir at a stirring speed of 80r/min for 2min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
Wherein the addition amount of the components in each step is as follows:
the re-dispersible latex powder is copolymer rubber powder (Vac/VeoVa) of vinyl acetate and higher fatty acid vinyl ester.
Example 5
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing silicate, redispersible latex powder, cement-based permeable crystallization master batch, sodium tripolyphosphate, a defoaming agent, bentonite, polyacrylamide, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and stirring at the stirring speed of 70r/min for 4min to obtain a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at the stirring speed of 80r/min for 2min, then adding the remaining half of quartz sand, and then continuing to stir at the stirring speed of 100r/min for 2min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
Wherein the addition amount of the components in each step is as follows:
the re-dispersible latex powder is acrylate and styrene copolymerized rubber powder (A/S).
Example 6
A preparation method of silicate latex inorganic paint comprises the following steps:
(1) mixing silicate, redispersible latex powder, cement-based permeable crystallization master batch, sodium tripolyphosphate, a defoaming agent, bentonite, fatty acid polyglycol ester, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 50r/min for 5min to prepare a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at a stirring speed of 50r/min for 5min, then adding the remaining half of quartz sand, and then continuing to stir at a stirring speed of 120r/min for 1min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
Wherein the addition amount of the components in each step is as follows:
the re-dispersible latex powder is ternary copolymer rubber powder of vinyl acetate, acrylic ester and higher fatty acid vinyl ester.
Comparative example 1
A preparation method of the coating comprises the following steps:
(1) mixing silicate, cement-based permeable crystallization master batch, sodium tripolyphosphate, a defoaming agent, bentonite and fatty acid polyglycol ester at the temperature of 20-30 ℃, and stirring at the stirring speed of 50r/min for 5min to prepare a mixed system A;
(2) adding half of quartz sand into the mixed system A, then continuing to stir at a stirring speed of 50r/min for 5min, then adding the remaining half of quartz sand, and then continuing to stir at a stirring speed of 120r/min for 1min to prepare a mixed system B, wherein the quartz sand added in the step is 200 meshes of quartz sand, and the quartz sand added later is 100 meshes of quartz sand;
(3) and (5) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the coating.
Wherein the addition amount of the components in each step is as follows:
performance testing
The coatings prepared in the examples 1-6 are constructed, then combustion gross heating value PCS and SBI monomer combustion tests, smoke generation characteristics and drop/particle tests are carried out on each experimental group, wherein 10 samples in each group are compared with corresponding standards according to the upper limit value measured by the samples, and meanwhile, the samples in the comparative example 1 are synchronously tested, and the following results are obtained:
wherein the combustion test samples were tested according to the specification of 5.2.2a in GB/T20284-2006.
As can be seen from the table above, in the total heat value test of combustion of the coating prepared by the scheme of the invention, the integral product is less than or equal to 3.0MJ/Kg, and the main component is less than or equal to 3.0MJ/m2The external minor component is less than or equal to 4.0MJ/m2(ii) a In SBI monomer burning test, the burning growth rate index FIGRA 0.2MJ W/S is less than or equal to 120, the flame transverse spread LFS is less than the edge of the sample, and the total heat release THR is 600S600sLess than or equal to 7.5 MJ; in the smoke generation characteristic, the smoke generation rate index SMOGRA m2/S2Less than or equal to 30, and total smoke output TSP of first 600s600s，≤50m2(ii) a And the sample was free of burning drips/particles within 600 s.
The foregoing is directed to embodiments of the present invention, and equivalents, modifications, substitutions and variations such as will occur to those skilled in the art, which fall within the scope and spirit of the appended claims.
Claims (9)
1. A silicate latex inorganic coating is characterized in that: the paint comprises the following components in parts by weight:
the silicate comprises more than one of sodium silicate, potassium silicate or lithium silicate.
2. The silicate latex inorganic paint according to claim 1, wherein: the active agent is sodium tripolyphosphate.
3. The silicate latex inorganic paint according to claim 1, wherein: the redispersible latex powder is vinyl acetate and ethylene copolymer rubber, ethylene, vinyl chloride and vinyl laurate ternary copolymer rubber powder, vinyl acetate and ethylene and higher fatty acid vinyl ester ternary copolymer rubber powder, vinyl acetate and higher fatty acid vinyl ester copolymer rubber powder, acrylic ester and styrene copolymer rubber powder or vinyl acetate and acrylic ester and higher fatty acid vinyl ester ternary copolymer rubber powder.
4. The silicate latex inorganic paint according to claim 1, wherein: the dispersing agent is one of triethyl hexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, Guel gum and fatty acid polyglycol ester.
5. The silicate latex inorganic paint according to claim 1, wherein: half of the quartz sand is 100-mesh quartz sand, and the other half of the quartz sand is 200-mesh quartz sand.
6. The method for preparing a silicate latex inorganic paint according to one of claims 1 to 5, characterized in that: which comprises the following steps:
(1) mixing silicate, redispersible latex powder, a cement-based permeable crystallization master batch, an active agent, a defoaming agent, bentonite, a dispersing agent, dodecyl alcohol ester and beta- (4-hydroxy-3, 5-di-tert-butylphenyl) n-octadecyl propionate at the temperature of 20-30 ℃, and then stirring at the stirring speed of 50-80 r/min for 2-5 min to prepare a mixed system A;
(2) adding half quartz sand into the mixed system A, then continuing to stir at a stirring rotating speed of 50-80 r/min for 2-5 min, then adding the remaining half quartz sand, and then continuing to stir at a stirring rotating speed of 80-120 r/min for 1-2 min to obtain a mixed system B;
(3) and (4) encapsulating the mixed system B in a low-oxygen and light-resistant environment to obtain the silicate latex inorganic coating.
7. The method for preparing the silicate latex inorganic paint according to claim 6, wherein the method comprises the following steps: in the step (2), the quartz sand added firstly is 200 meshes of quartz sand, and then the quartz sand added later is 100 meshes of quartz sand.
8. An architectural coating characterized by: which comprises the silicate latex inorganic paint according to one of claims 1 to 5.
9. The method of constructing an architectural coating according to claim 8, wherein: and uniformly mixing the building coating and water according to a preset metering ratio, and coating the mixture on the surface of a building material.
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| CN202010854832.5A CN112010622B (en) | 2020-08-24 | 2020-08-24 | Silicate latex inorganic coating |
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| US9028605B2 (en) * | 2011-02-25 | 2015-05-12 | J.M. Huber Corporation | Coating compositions comprising spheroid silica or silicate |
| CN102617103B (en) * | 2011-12-28 | 2016-06-08 | 上海墙特节能材料有限公司 | Not containing inorganic dry powder construction paint and the production method thereof of solidifying agent |
| CN104745023A (en) * | 2013-12-30 | 2015-07-01 | 上海墙特节能材料有限公司 | Inorganic dry powder solid color prime coat and application thereof |
| CN104774506A (en) * | 2014-01-10 | 2015-07-15 | 上海墙特节能材料有限公司 | Inorganic dry-powder transparent priming paint, and preparation method and applications thereof |
| CN108996973A (en) * | 2018-09-30 | 2018-12-14 | 中国十七冶集团有限公司 | A kind of penetration crystallization type water proofing paint |
| CN110981374A (en) * | 2019-12-24 | 2020-04-10 | 湖北常林防水科技有限公司 | Cement-based capillary crystalline building waterproof material and preparation method thereof |
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