CN110526667A - A kind of aqueous ecological inorganic coating and its preparation method and application - Google Patents
A kind of aqueous ecological inorganic coating and its preparation method and application Download PDFInfo
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- 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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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- 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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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- 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
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Abstract
The invention belongs to building coating fields, provide a kind of aqueous ecological inorganic coating, component including following parts by weight: 28~35 parts of water, 3~5 parts of barium sulfate, 3~7 parts of alumina silicate, 5~8 parts of lotion, 10~22 parts of potassium silicate, 0.4~0.7 part of hydroxyethyl cellulose, 0.3~0.45 part of dispersing agent, 23~34 parts of pigments and fillers and 0.6~1.3 part of auxiliary reagent, the problems such as aqueous ecological inorganic coating provided by the invention is able to solve generally existing airtight, inflammable, the mouldy, peeling of interior wall coating, material not environmentally.
Description
Technical field
The present invention relates to building coating technical field more particularly to a kind of aqueous ecological inorganic coating and preparation method thereof and
Using.
Background technique
Existing interior wall coating mainly uses polyester acid vac emulsion, auxiliary reagent, pigment to be dispersed the painting that agent mixes
Material, the beauty of interior wall coating, which will not only see construction quality also, will see whether appearance reaches aesthetic, and the beauty of interior wall coating is right
Extremely important in living environment, mostly there is airtight, inflammable, easy mouldy moisture condensation, peeling, picking, material in existing interior wall coating
The problems such as expecting not environmentally.
Patent CN109294347A discloses a kind of Gao Baose water paint and production method, provides a kind of Gao Baose water
Property coating, not only have the characteristics that high durable, protect color, coating obtained also has good colour retention；Coating can also be enhanced
Weatherability and chemical corrosion resistance, the shortcomings that especially changing poor current emulsion paint exterior coating weatherability, fugitive color, but on
It states coating and is mainly used for exterior walls of buildings, fire protecting performance grade is low, and coating is easy thickening in long-term storage, surely
It is qualitative poor, and exterior wall not can solve the generally existing peeling of existing interior wall coating, inflammable, mouldy, airtight, anti-with paint
Tide, the easily drawbacks such as moisture condensation.
Summary of the invention
In consideration of it, the purpose of the present invention is to provide a kind of aqueous ecological inorganic coating and its preparation and application, the present invention
The aqueous ecological inorganic coating provided has good flame resistance, and gas permeability, mildew resistant moistureproof environmental-protecting performance are significantly improved.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of aqueous ecological inorganic coating, the component including following parts by weight: 28~35 parts of water, sulphur
3~5 parts of sour barium, 3~7 parts of alumina silicate, 5~8 parts of lotion, 10~22 parts of potassium silicate, 0.4~0.7 part of hydroxyethyl cellulose, dispersion
0.3~0.45 part of agent, 23~34 parts of pigments and fillers and 0.6~1.3 part of auxiliary reagent.
Preferably, the lotion includes one of vinegar third, second third, silicon third or styrene-acrylic emulsion or a variety of.
Preferably, the potassium silicate includes pure potassium silicate and/or stable type potassium silicate.
Preferably, the dispersing agent is sodium salt dispersing agent.
Preferably, the pigments and fillers include one of titanium dioxide, kaolin, coarse whiting, talcum powder and wollastonite or a variety of.
Preferably, the granularity of the titanium dioxide is 400 mesh,
The kaolinic granularity is 4000 mesh,
The granularity of the coarse whiting, talcum powder and wollastonite is 1250 mesh.
Preferably, the auxiliary reagent includes one of defoaming agent, wetting agent and stabilizer or a variety of.
Preferably, the wetting agent is organosilicon wetting agent,
The stabilizer is quaternary ammonium salt stabilizing agent,
The defoaming agent is organic silicon defoamer.
The present invention also provides the preparation methods of above-mentioned aqueous ecological inorganic coating, include the following steps:
Water, dispersing agent and auxiliary reagent are subjected to the first mixing, obtain dispersion liquid；
Pigments and fillers, barium sulfate, alumina silicate, hydroxyethyl cellulose are carried out second with the dispersion liquid to mix, mixed
Slurry；
Lotion, potassium silicate are carried out third with the mixed slurry to mix, obtain the aqueous ecological inorganic coating.
It is made the present invention also provides aqueous ecological inorganic coating described in above-mentioned technical proposal or as described in above-mentioned technical proposal
Application of the aqueous ecological inorganic coating in inner wall of building made from Preparation Method.
The present invention provides a kind of aqueous ecological inorganic coating, the component including following parts by weight: 28~35 parts of water, sulphur
3~5 parts of sour barium, 3~7 parts of alumina silicate, 5~8 parts of lotion, 10~22 parts of potassium silicate, 0.4~0.7 part of hydroxyethyl cellulose, dispersion
0.3~0.45 part of agent, 23~34 parts of pigments and fillers and 0.6~1.3 part of auxiliary reagent.The present invention in paint matrix component by adding
Add barium sulfate, alumina silicate and potassium silicate, the fire resistance of water paint is improved using the high-melting-point of alumina silicate, barium sulfate is in coating
There is covering power after film forming, generate heat-blocking action, the heat resistance after improving coating film forming, potassium silicate dissolves in wall substrate and wall
It forms that porous, hard is high, good permeability, matt inorganic coating after gel solidification, wall is made to have moisture adsorption and releasing function；Dispersing agent simultaneously
The mobility that coating can be improved guarantees the stability of viscosity of the coating.The experimental results showed that aqueous ecological nothing provided by the invention
Fire protecting performance grade after machine coating film forming reaches A grades, and 0 grade of mould proof grade, moisture-vapor transmission reaches 867V/ [g/m2.d],
Volatile organic compounds (VOC), benzene toluene, ethylbenzene, diethylbenzene, free formaldehyde Testing index be lower than standard requirements.
Detailed description of the invention
Fig. 1 is the surface topography after the aqueous ecological inorganic coating of the embodiment of the present invention 1 film forming；
Fig. 2 is the surface topography after 1 emulsion paint coating of comparative example of the present invention film forming；
Fig. 3 is the shear stress curve graph of aqueous ecological inorganic coating prepared by the embodiment of the present invention 1；
Fig. 4 is the shear stress curve graph of aqueous ecological inorganic coating prepared by the embodiment of the present invention 2.
Specific embodiment
The present invention provides a kind of aqueous ecological inorganic coating, the component including following parts by weight:
28~35 parts of water, 3~5 parts of barium sulfate, 3~7 parts of alumina silicate, 5~8 parts of lotion, 10~22 parts of potassium silicate, ethoxy
0.4~0.7 part of cellulose, 0.3~0.45 part of dispersing agent, 23~34 parts of pigments and fillers and 0.6~1.3 part of auxiliary reagent.
It in the present invention, include 28~35 parts of water, preferably 30~34 parts in the aqueous ecological inorganic coating；In this hair
In bright, the water is preferably any water quality free from foreign meter, dissolves other components mainly as solvent.
It include 3~5 parts of barium sulfate in aqueous ecological inorganic coating of the present invention in terms of the parts by weight of the water, it is excellent
It is selected as 4 parts；In the present invention, the barium sulfate is white amorphous powder, and relative density is 4.5 (15 DEG C), molten point 1580
DEG C, there is very high refractive index (1.63~1.65), after barium sulfate is dissolved in coating, there is covering power after film forming, generate heat-insulated work
With, heat resistance after improving coating film forming, while also to can be further improved the abrasion resistance, heat resistance of film, surface hard for covering power
Degree and impact resistance.
In terms of the parts by weight of the water, including 3~7 parts of alumina silicate, preferably 4 in the aqueous ecological inorganic coating of the present invention
~6 parts；In the present invention, for the alumina silicate as silicate, density is 2.8~2.9g/cm3, it is used as fire proofing material.
It include 5~8 parts of lotion in aqueous ecological inorganic coating of the present invention, preferably in terms of the parts by weight of the water
It is 6~7 parts；In the present invention, the lotion is preferably vinegar third, second third, silicon third or styrene-acrylic emulsion, more preferably silicon third or phenylpropyl alcohol
Lotion.In embodiments of the present invention, the lotion is preferably ROSF5588 type silicone acrylic emulsion or RS-5939 type styrene-acrylic emulsion.In
In the present invention, the ROSF5588 lotion does not damage lotion high-performance, has comprehensive environmental-protecting performance, is free of APE0 and ammonium hydroxide,
Artificially do not add formaldehyde；The RS-5939 type lotion has excellent stain resistance and alkali resistance, and the coating being configured to has
The features such as low bubble, low thixotroping, Gao Fengman film, paint film strong covering power and early stage resistance to chalking.In the present invention, described
The purchase of ROSF5588 lotion is enriched with from Guangzhou Ross husband's new material Science and Technology Ltd., the RS-5939 lotion purchase from Ahmedabad
Co., Ltd, group.
It include 10~22 parts of potassium silicate in aqueous ecological inorganic coating of the present invention in terms of the parts by weight of the water,
Preferably 12~20 parts；In the present invention, the potassium silicate is preferably colourless or yellowish, can dissolve in wall substrate and wall is solidifying
It forms that porous, hard is high, good permeability, matt inorganic coating after adhesive curing, wall is made to have moisture adsorption and releasing function.In the present invention,
The modulus of the potassium silicate is preferably 3.5~4；In the present invention, the modulus of potassium silicate is higher, and the pH value of lotion is lower.Silicic acid
There is very big influence, the slow drying speed of coating when modulus is too low, water-fast anti-scratch to the physical and chemical performance of coating in the modulus of potassium
It is poor to wash performance；The cohesive force of coating is inadequate when modulus is excessively high, and dry shrinkage stress is big, cracking dusting easily occurs, therefore optimal
Modulus range is 3.5~4.
In the present invention, the potassium silicate is preferably pure potassium silicate or stable type potassium silicate, in the present invention, further excellent
It is selected as stable type potassium silicate；Potassium silicate has pure potassium silicate (unstable type) and stable type potassium silicate two major classes, compared to pure silicon acid
Potassium, using stable type potassium silicate production the aqueous ecological inorganic coating of silicate after thicken it is less, have preferably storage stablize
Property, and the potassium silicate of stable type is a kind of good film forming matter, can replace lotion, solves to add in existing coating a large amount of
Lotion makes wall close, is airtight, causes the drawbacks problem such as peeling, mouldy, picking, realizes ventilative, moisture-proof, mould proof and anti-algae
Purpose.
It include hydroxyethyl cellulose 0.4 in aqueous ecological inorganic coating of the present invention in terms of the parts by weight of the water
~0.7 part, preferably 0.5 part；In the present invention, the molecular weight of the hydroxyethyl cellulose is preferably 1.5 ten thousand, above-mentioned molecular weight
Hydroxyethylcellulose viscosity it is low, can be avoided the thickening of coating in storage, improve the stability of coating.
It include dispersing agent 0.3~0.45 in aqueous ecological inorganic coating of the present invention in terms of the parts by weight of the water
Part, preferably 0.4 part；In the present invention, the dispersing agent is preferably sodium salt dispersing agent, and sodium salt dispersing agent is a kind of unsaturated carboxylic
The sodium-salt aqueous solution of acid copolymer has good dispersibility to pigments and fillers, and dosage is few, and effect is big, is stored with the slurries of its dispersion
Property it is good, the mobility of coating can be improved, long term storage does not precipitate, and has and stablizes the excellent properties of viscosity of the coating.In the present invention
In, the anion-content of the sodium salt dispersing agent is preferably 43~46wt%, and specific gravity is preferably 1.2 (25 DEG C), and viscosity is preferably
200~600MPas.In embodiments of the present invention, the model of the sodium salt dispersing agent is preferably SN5040.
It include 23~34 parts of pigments and fillers in aqueous ecological inorganic coating of the present invention in terms of the parts by weight of the water,
Preferably 25~30 parts.In the present invention, the pigments and fillers preferably include titanium dioxide, kaolin, coarse whiting, talcum powder and wollastonite
One of or it is a variety of.It is highly preferred that the pigments and fillers include 6~8 parts of titanium dioxide, 8~12 parts of kaolin, 2~3 parts of coarse whiting,
5~7 parts and 2~4 parts of wollastonite of talcum powder.In the present invention, the granularity of the titanium dioxide is preferably 400 mesh, the kaolin
Granularity be preferably 4000 mesh, the granularity of the coarse whiting, talcum powder and wollastonite is independently preferably 1250 mesh.In the present invention
In, the kaolin is preferably calcined kaolin, plays resistance to fire action, while improving tensile bond strength.
It include auxiliary reagent 0.6~1.3 in aqueous ecological inorganic coating of the present invention in terms of the parts by weight of the water
Part, preferably 0.8~1.0 part；In the present invention, the auxiliary reagent preferably includes in defoaming agent, wetting agent and stabilizer
It is one or more；In the present invention, the auxiliary reagent more preferably includes 0.1~0.3 part of defoaming agent, 0.2~0.4 part of wetting agent
With 0.3~0.6 part of stabilizer.In the present invention, the wetting agent is preferably organosilicon wetting agent, the organosilicon wetting agent
Viscosity is preferably (25 DEG C): 30~100MPas, organosilicon wetting agent are nonionic surfactants, and surface tension is low, has
Excellent substrate wetting, ductility and permeability.In the present invention, the stabilizer is preferably quaternary ammonium salt stabilizing agent, described
Viscosity stability when quaternary ammonium salt stabilizing agent can be improved storage reduces thickening behavior.In the present invention, the defoaming agent is preferably
Organic silicon defoamer, the organic silicon defoamer are thick white lotion, and viscosity reaches 1.5~200,000, is able to maintain at room temperature
Liquid has brokenly bubble, deaeration and foam inhibition triple functions.
Unless otherwise specified, the present invention does not have special restriction to the source of above-mentioned cited raw material, using this field skill
Commercial goods known to art personnel.
The present invention also provides a kind of preparation methods of aqueous ecological inorganic coating, include the following steps:
Water, dispersing agent and auxiliary reagent are subjected to the first mixing, obtain dispersion liquid；
Pigments and fillers, barium sulfate, alumina silicate, hydroxyethyl cellulose are carried out second with the dispersion liquid to mix, mixed
Slurry；
Lotion, potassium silicate are carried out third with the mixed slurry to mix, obtain aqueous ecological inorganic coating.
Water, dispersing agent and auxiliary reagent are carried out the first mixing by the present invention, obtain dispersion liquid.
The order by merging of the present invention hybrid mode mixed for described first and raw material is not particularly limited；In the present invention
In, first mixing preferably carries out under agitation, and the revolving speed of the stirring is preferably 800~1200r/min, more preferably
For 1000r/min；The time of the stirring is preferably 5~10min.
After obtaining dispersion liquid, the present invention by pigments and fillers, barium sulfate, alumina silicate, hydroxyethyl cellulose and the dispersion liquid into
Row second mixes, and obtains mixed slurry.
The order by merging of the present invention hybrid mode mixed for described second and raw material is not particularly limited；In the present invention
In, second mixing preferably carries out under agitation, and the revolving speed of the stirring is preferably 1400~1600r/min, more excellent
It is selected as 1500r/min；The time of the stirring is preferably 20~30min, more preferably 25min.
After obtaining mixed slurry, lotion, potassium silicate are carried out third with the mixed slurry and mixed by the present invention, are obtained described
Aqueous ecological inorganic coating.The third mixing preferably carries out under agitation in the present invention, and the revolving speed of the stirring is excellent
It is selected as 600~800r/min, more preferably 700r/min；The time of the stirring is preferably 35~45min, more preferably
40min。
In the present invention, the potassium silicate is preferably mixed in two times, and the present invention is preferably first by part potassium silicate and mixed
After conjunction slurry, lotion are mixed, remaining potassium silicate is added；In the present invention, the addition matter before and after the potassium silicate twice
Amount is than being preferably 1:4；In the present invention, the potassium silicate is added in two times, be due to potassium silicate is overbased material, if
Impact can be generated to lotion by being added at one time, and influence the quality of aqueous ecological inorganic coating, and substep is added and can further increase
The stability of coating.
Liquid material (water, dispersing agent and auxiliary reagent) is first carried out the first mixing by the present invention, then adds solid-state original
Expect that (pigments and fillers, barium sulfate, alumina silicate, hydroxyethyl cellulose) carries out the second mixing, solid-liquid raw material be subjected to homogeneous classification mixing,
It can be realized more preferably solute effect, guarantee the stability of aqueous ecological inorganic coating.
The application that the present invention also provides above-mentioned aqueous ecological inorganic coating in inner wall of building is in the present invention, described
Aqueous ecological inorganic coating is preferred for the decoration of inner wall of building.
Aqueous ecological inorganic coating provided by the invention and its application are described in detail below with reference to embodiment, but
It is that they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
By parts by weight shown in table 1, following components: water, sodium salt dispersing agent SN5040, hydroxyethyl cellulose, organosilicon is weighed
Wetting agent, quaternary ammonium salt stabilizing agent, organic silicon defoamer, titanium dioxide, calcined kaolin, barium sulfate, alumina silicate, talcum powder, silicon ash
Stone, coarse whiting, ROSF5588 silicone acrylic emulsion, stable type potassium silicate；
1) water, sodium salt dispersing agent, organosilicon wetting agent, quaternary ammonium salt stabilizing agent, organosilicon are first added into coating dispersion machine
Defoaming agent is stirred with dispersion machine, stirring rate 1000r/min, mixing time 5min；
2) talcum powder, wollastonite, titanium dioxide, calcined kaolin, barium sulfate, coarse whiting, alumina silicate, hydroxyethyl cellulose is added
Continue to stir, stirring rate 1500r/min, mixing time 20min；
3) lotion, organic silicon defoamer, partially stabilized type potassium silicate (1/5) is added to continue to stir, stirring rate 700r/
Min, mixing time 8min；
4) remaining stable type potassium silicate (4/5) is added to continue to stir, stirring rate 700r/min, mixing time 30min is obtained
To the aqueous ecological inorganic coating of finished product, packing.
The performance parameter of aqueous ecological inorganic coating obtained is referring to table 2.
Embodiment 2
The scheme of the present embodiment and embodiment 1 is essentially identical, and difference is only that potassium silicate is pure potassium silicate (unstable type).
The performance parameter of aqueous ecological inorganic coating obtained is referring to table 2.
Embodiment 3
By parts by weight shown in table 1, following components: water, sodium salt dispersing agent SN5040, hydroxyethyl cellulose, organosilicon is weighed
Wetting agent, quaternary ammonium salt stabilizing agent, organic silicon defoamer, titanium dioxide, calcined kaolin, barium sulfate, alumina silicate, talcum powder, silicon ash
Stone, coarse whiting, RS5939 styrene-acrylic emulsion, stable type potassium silicate；
1) water, sodium salt dispersing agent, organosilicon wetting agent, quaternary ammonium salt stabilizing agent, organosilicon are first added into coating dispersion machine
Defoaming agent is stirred with dispersion machine, stirring rate 1000r/min, mixing time 5min；
2) talcum powder, wollastonite, titanium dioxide, calcined kaolin, barium sulfate, coarse whiting, alumina silicate, hydroxyethyl cellulose is added
Continue to stir, stirring rate 1500r/min, mixing time 20min；
3) lotion is added, organic silicon defoamer, stable type potassium silicate continue to stir, stirring rate 700r/min, when stirring
Between 40min, obtain the aqueous ecological inorganic coating of finished product, dispense.
The performance parameter of aqueous ecological inorganic coating obtained is referring to table 2.
Embodiment 4
By parts by weight shown in table 1, following components: water, sodium salt dispersing agent SN5040, hydroxyethyl cellulose, organosilicon is weighed
Wetting agent, quaternary ammonium salt stabilizing agent, organic silicon defoamer, titanium dioxide, calcined kaolin, barium sulfate, alumina silicate, talcum powder, silicon ash
Stone, coarse whiting, RS5939 styrene-acrylic emulsion, stable type potassium silicate；
1) water, sodium salt dispersing agent, organosilicon wetting agent, quaternary ammonium salt stabilizing agent, organosilicon are first added into coating dispersion machine
Defoaming agent is stirred with dispersion machine, stirring rate 1000r/min, mixing time 5min；
2) talcum powder, wollastonite, titanium dioxide, calcined kaolin, barium sulfate, coarse whiting, alumina silicate, hydroxyethyl cellulose is added
Continue to stir, stirring rate 1500r/min, mixing time 20min；
3) lotion, organic silicon defoamer, partially stabilized type potassium silicate (1/5) is added to continue to stir, stirring rate 700r/
Min, mixing time 8min；
4) remaining stable type potassium silicate (4/5) is added to continue to stir, stirring rate 700r/min, mixing time 30min
The aqueous ecological inorganic coating of finished product is obtained, is dispensed.
The performance parameter of aqueous ecological inorganic coating obtained is referring to table 2.
Embodiment 5
By parts by weight shown in table 1, following components: water, sodium salt dispersing agent SN5040, hydroxyethyl cellulose, organosilicon is weighed
Wetting agent, titanium dioxide, calcined kaolin, barium sulfate, alumina silicate, talcum powder, wollastonite, coarse whiting, RS5939 styrene-acrylic emulsion, stabilization
Type potassium silicate；
1) water, sodium salt dispersing agent, organosilicon wetting agent are first added into coating dispersion machine, is stirred, is stirred with dispersion machine
Mix rate 1000r/min, mixing time 5min；
2) talcum powder, wollastonite, titanium dioxide, calcined kaolin, barium sulfate, coarse whiting, alumina silicate, hydroxyethyl cellulose is added
Continue to stir, stirring rate 1500r/min, mixing time 20min；
3) lotion, organic silicon defoamer, partially stabilized type potassium silicate (1/5) is added to continue to stir, stirring rate 700r/
Min, mixing time 8min；
4) remaining stable type potassium silicate (4/5) is added to continue to stir, stirring rate 700r/min, mixing time 30min is obtained
To the aqueous ecological inorganic coating of finished product, packing.
The performance parameter of aqueous ecological inorganic coating obtained is referring to table 2.
Embodiment 6
By parts by weight shown in table 1, following components: water, sodium salt dispersing agent SN5040, hydroxyethyl cellulose, organosilicon is weighed
Wetting agent, quaternary ammonium salt stabilizing agent, titanium dioxide, calcined kaolin, barium sulfate, alumina silicate, talcum powder, wollastonite, coarse whiting, lotion
RS5939, stable type potassium silicate；
1) water, sodium salt dispersing agent, organosilicon wetting agent, quaternary ammonium salt stabilizing agent are first added into coating dispersion machine, with dispersion
Machine is stirred, stirring rate 1000r/min, mixing time 5min；
2) talcum powder, wollastonite, titanium dioxide, calcined kaolin, barium sulfate, coarse whiting, alumina silicate, hydroxyethyl cellulose is added
Continue to stir, stirring rate 1500r/min, mixing time 20min；
3) lotion, organic silicon defoamer, partially stabilized type potassium silicate (1/5) is added to continue to stir, stirring rate 700r/
Min, mixing time 8min；
4) remaining stable type potassium silicate (4/5) is added to continue to stir, stirring rate 700r/min, mixing time 30min is obtained
To the aqueous ecological inorganic coating of finished product, packing.
The performance parameter of aqueous ecological inorganic coating obtained is referring to table 2.
Comparative example 1 (emulsion paint coating)
By parts by weight shown in table 1, following components: water, sodium salt dispersing agent SN5040, hydroxyethyl cellulose, quaternary ammonium salt is weighed
Stabilizer, titanium dioxide, calcined kaolin, barium sulfate, alumina silicate, talcum powder, wollastonite, coarse whiting, polyester acid vac emulsion, stabilization
Type potassium silicate；
1) water, sodium salt dispersing agent, quaternary ammonium salt stabilizing agent are first added into coating dispersion machine, is stirred, is stirred with dispersion machine
Mix rate 1000r/min, mixing time 5min；
2) talcum powder, wollastonite, titanium dioxide, calcined kaolin, barium sulfate, coarse whiting, alumina silicate, hydroxyethyl cellulose is added
Continue to stir, stirring rate 1500r/min, mixing time 20min；
3) lotion, organic silicon defoamer, partially stabilized type potassium silicate (1/5) is added to continue to stir, stirring rate 700r/
Min, mixing time 8min；
4) remaining stable type potassium silicate (4/5) is added to continue to stir, stirring rate 700r/min, mixing time 30min is obtained
To the aqueous ecological inorganic coating of finished product, packing.
The performance parameter of aqueous ecological inorganic coating obtained is referring to table 2.
Comparative example 2
Comparative example 2 and the difference of embodiment 1 are only that, do not add barium sulfate and alumina silicate.
The weight of 1~2 each component of 1 Examples 1 to 6 of table and comparative example
1~2 coating properties Testing index of 2 Examples 1 to 6 of table and comparative example
Table 2 is 1~2 coating performance indexes testing result of Examples 1 to 6 and comparative example, as shown in Table 2, the present invention
The fire protecting performance for the aqueous ecological inorganic coating being prepared reaches A grades, and mould proof grade reaches 0 grade, and moisture-vapor transmission reaches
867V/[g/m2D], volatile organic compounds (VOC), benzene, toluene, ethylbenzene, diethylbenzene, free formaldehyde testing result are low
In standard requirements.
Fig. 1 is the appearance structure after aqueous ecological inorganic coating film forming prepared by the embodiment of the present invention 1, can be seen by Fig. 1
Film is open vapor-permeable type out, there is moisture absorption and moisture releasing function, surface of wall film forming after will not peeling mildew and fall off.
Fig. 2 is the appearance structure after the poly- vinyl acetate emulsion paint film forming of comparative example 1, and film is closing as seen from Figure 2
Type causes film airtight, and film peeling mildew is caused to fall off.
Fig. 3 is shear stress figure of the aqueous ecological inorganic coating of the preparation of embodiment 1 under room temperature and 60 DEG C of high temperature；By scheming
3 as can be seen that under the high temperature conditions, using for stable type potassium silicate makes the shear stress of coating lower than Fig. 4, viscosity of the coating drop
Low, stability is improved, and problem is thickened during subsequent storage and is effectively reduced.
Fig. 4 is shear stress figure of the aqueous ecological inorganic coating of the preparation of embodiment 2 under room temperature and 60 DEG C of high temperature；By scheming
4 as can be seen that under the high temperature conditions, and the use of pure potassium silicate causes shear stress to increase, and viscosity increases, then stability is relatively
Difference can generate thickening behavior after storing for a long time.
Comparative result it is found that shear stress of the coating under 60 DEG C of hot conditions of embodiment 1 (Fig. 3) preparation lower than implementing
Coating in example 2 (Fig. 4), shear stress variation degree of the coating that embodiment 1 provides in one week is low, is not easy to thicken, have
Better storage-stable.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of aqueous ecological inorganic coating, which is characterized in that the component including following parts by weight: 28~35 parts of water, sulfuric acid
3~5 parts of barium, 3~7 parts of alumina silicate, 5~8 parts of lotion, 10~22 parts of potassium silicate, 0.4~0.7 part of hydroxyethyl cellulose, dispersing agent
0.3~0.45 part, 23~34 parts of pigments and fillers and 0.6~1.3 part of auxiliary reagent.
2. aqueous ecological inorganic coating according to claim 1, which is characterized in that the lotion includes vinegar third, second third, silicon
One of third or styrene-acrylic emulsion are a variety of.
3. aqueous ecological inorganic coating according to claim 1, which is characterized in that the potassium silicate includes pure potassium silicate
And/or stable type potassium silicate.
4. aqueous ecological inorganic coating according to claim 1, which is characterized in that the dispersing agent is sodium salt dispersing agent.
5. aqueous ecological inorganic coating according to claim 1, which is characterized in that the pigments and fillers include titanium dioxide, height
One of ridge soil, coarse whiting, talcum powder and wollastonite are a variety of.
6. aqueous ecological inorganic coating according to claim 5, which is characterized in that
The granularity of the titanium dioxide is 400 mesh,
The kaolinic granularity is 4000 mesh,
The granularity of the coarse whiting, talcum powder and wollastonite is 1250 mesh.
7. aqueous ecological inorganic coating according to claim 1, which is characterized in that the auxiliary reagent include defoaming agent,
One of wetting agent and stabilizer are a variety of.
8. aqueous ecological inorganic coating according to claim 7, which is characterized in that
The wetting agent is organosilicon wetting agent,
The stabilizer is quaternary ammonium salt stabilizing agent,
The defoaming agent is organic silicon defoamer.
9. the preparation method of aqueous ecological inorganic coating described in claim 1~8 any one, which is characterized in that including as follows
Step:
Water, dispersing agent and auxiliary reagent are subjected to the first mixing, obtain dispersion liquid；
Pigments and fillers, barium sulfate, alumina silicate, hydroxyethyl cellulose are carried out second with the dispersion liquid to mix, obtain mixed slurry；
Lotion, potassium silicate are carried out third with the mixed slurry to mix, obtain the aqueous ecological inorganic coating.
10. aqueous ecological inorganic coating or the preparation method as described in claim 9 described in claim 1~8 any one obtain
Application of the aqueous ecological inorganic coating in inner wall of building.
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| CN113004733A (en) * | 2021-03-04 | 2021-06-22 | 纽沃得复合建材（上海）有限公司 | Antibacterial, mildewproof and flame-retardant silicate interior wall coating and preparation method thereof |
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| CN114773887A (en) * | 2022-04-22 | 2022-07-22 | 广西经正涂料有限公司 | Inorganic exterior wall heat insulation coating and preparation method thereof |
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