CN111056765A - Defoaming agent applied to thin-layer self-leveling mortar and preparation method thereof - Google Patents
Defoaming agent applied to thin-layer self-leveling mortar and preparation method thereof Download PDFInfo
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- CN111056765A CN111056765A CN201911237479.XA CN201911237479A CN111056765A CN 111056765 A CN111056765 A CN 111056765A CN 201911237479 A CN201911237479 A CN 201911237479A CN 111056765 A CN111056765 A CN 111056765A
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- defoaming agent
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
Abstract
The invention provides a defoaming agent applied to thin-layer self-leveling mortar and a preparation method thereof, wherein the defoaming agent comprises white carbon black, polyether, fatty alcohol and alkynol silicon polyether; the preparation method comprises (1) mixing fatty alcohol and partial white carbon black to form dispersion M1; (2) preparing alkynol silicon polyether, and then adding the dispersion M1 and polyether to mix to obtain a dispersion M2; (3) slowly spraying the dispersion M2 onto the A2 through a metering pump under certain temperature and rotation speed conditions, and mixing to obtain M3; finally, screening the M3 to obtain the solid defoaming agent. Compared with the traditional defoaming agent, the defoaming agent disclosed by the invention has the advantages of simple preparation method, good defoaming and foam inhibiting performances, no influence on the stability of a self-leveling mortar system, and capability of obviously improving the surface performance of the self-leveling mortar.
Description
Technical Field
The invention relates to a defoaming agent in the field of mortar and a preparation method thereof, and the defoaming agent belongs to a fine chemical preparation, so that the invention belongs to the technical field of fine chemical preparations.
Background
The self-leveling mortar mainly comprises a thick layer and a thin layer, and the construction thickness of the thick layer self-leveling cement mortar is between 5mm and 50 mm. It is composed of ordinary silica cement, aluminate cement, sulphoaluminate cement or gypsum and other cementing materials, fine aggregate, filler and additive. After being stirred with water, the mortar has fluidity and can be leveled automatically or slightly paved. High efficiency, high strength and high flatness. The construction thickness of the thin-layer self-leveling cement mortar is less than 5mm, the requirement on the surface flatness is higher than that of a thick layer, the manual scraping is not depended on, the thickness is relatively small, shrinkage is easy to generate due to changes of hydration heat and environmental temperature, and in actual use, shrinkage cavities and hollows on the surface of the thin-layer self-leveling cement mortar still need to be solved at present.
The defoaming agent can solve the problems of shrinkage cavity and hollowing on the surface of the thin-layer self-leveling mortar, the traditional mineral oil defoaming agent is replaced due to poor dispersibility in water and poor defoaming effect, and the organic silicon defoaming agent generally comprises products such as polydimethylsiloxane and the like, has the characteristics of high defoaming speed, good foam inhibition performance and the like, but has the defects of poor surface floating oil and compatibility, high price and the like, so that the universal application is limited; the alkynol type silicon polyether defoaming agent has the characteristics of good defoaming performance, good dispersion in water, good system stability and the like, and is widely applied to the aspects of industry, food, buildings and the like. The patent No. CN102160939A discloses a preparation method of a self-emulsifying molecular defoaming agent. The defoaming agent comprises a defoaming active substance and a dispersion medium, wherein the defoaming active substance is composed of higher fatty alcohol, alkynol, polyether and silicone oil, the dispersion medium is a graft star polymer, and the compatibility of the defoaming agent needs to be further improved; . Patent No. CN101780383B discloses an aqueous emulsion type non-silicon defoaming agent and a preparation method thereof, wherein the defoaming agent consists of a defoaming active substance, a floating substance and a dispersion medium; wherein the defoaming active substance is composed of alkynol, higher fatty alcohol and glycerol polyether, the dispersion medium is composed of water and glycol, and the defoaming and foam inhibiting performance of the defoaming agent needs to be improved. Patent No. CN109364534A discloses a modified polyether composition, which consists of H-type silicon polyether, linear silicon polyether, alkynol polyether and silicon dioxide, and the internal degassing performance of the defoaming agent disclosed by the invention in an application system needs to be further improved. .
In summary, the compatibility of the defoamer with the cement, controlling surface and internal foaming of the thin-layer self-leveling mortar are particularly important.
Disclosure of Invention
The invention aims to provide a defoaming agent suitable for thin-layer self-leveling mortar and a preparation method thereof, which are specially used for solving the problems of surface cracking and hollowing of the thin-layer self-leveling mortar.
The object of the invention can be achieved by the following measures:
A. the white carbon black is classified into precipitation white carbon black and gas phase white carbon black according to the manufacturing method, and is classified into hydrophilic white carbon black and hydrophobic white carbon black according to surface properties. The hydrophilic white carbon black is preferably selected, and comprises gas-phase hydrophilic white carbon black and precipitation hydrophilic white carbon black, and the specific surface area of the hydrophilic white carbon black is 50-500 m2(ii) in terms of/g. The amount of the white carbon black accounts for 20-40% of the total mass of the defoaming agent.
The white carbon black is divided into two parts: firstly, the A1 accounts for 20-40% of the total mass of the white carbon black when the white carbon black is mixed with fatty alcohol, and secondly, the A2 accounts for 60-80% of the total mass of the white carbon black when the white carbon black is used as a carrier.
B. And the polyether is a nonionic surfactant selected from nonylphenol polyoxyethylene ether, octylphenol polyoxyethylene ether, lauric acid polyoxyethylene ether, oleic acid polyoxyethylene ether, sorbitan monostearate, sorbitan monooleate, sorbitan tristearate, sorbitan trioleate, sorbitan monostearate polyoxyethylene ether ester, sorbitan monooleate polyoxyethylene ether ester, sorbitan tristearate polyoxyethylene ether ester and castor oil polyoxyethylene ether. The using amount accounts for 15-30% of the total mass of the defoaming agent.
C. The fatty alcohol is a saturated fatty alcohol with 1-30 carbon atoms, is available on the market, is preferably a fatty alcohol with 12-30 carbon atoms, and is specifically selected from 2-octyldodecanol, tetradecanol, hexadecanol, octadecanol, behenyl alcohol and hexacosanol. The using amount accounts for 10-25% of the total mass of the defoaming agent.
D. The alkynol silicon polyether is mainly prepared from hydrogen-containing silicone oil and alkynol polyether under the action of a catalyst, the hydrogen-containing silicone oil D1 can be hydrogen-terminated silicone oil, side hydrogen silicone oil or end hydrogen-terminated silicone oil, and the mass fraction of active hydrogen is 0.1-0.3%. The alkynol polyether D2 is selected from acetylene alcohol ether, propiolic alcohol ether, butynol ether, butynediol ether, pentynol ether and hexynol ether. The molecular weight range is 600-1500, wherein the molar ratio of the alkynol polyether to the hydrogen-containing silicone oil is 1: 1-1.2: 1, wherein the catalyst D3 is a noble metal catalyst for promoting hydrosilylation, and is selected from platinum-alcohol complex, platinum-olefin complex, platinum-alkoxide complex, platinum-ether complex, platinum-ketone complex, chloroplatinic acid isopropanol solution with the mass concentration of 1-20%, preferably chloroplatinic acid isopropanol solution with the mass concentration of 1%, the dosage of the catalyst is 3-50 ppm (calculated by Pt mass/(total mass of alkyne polyether and hydrogen-containing silicone oil), the preparation principle is the known hydrosilylation, and the dosage of the alkynol silicon polyether accounts for 10-30% of the total mass of the defoaming agent.
The preparation method of the defoaming agent comprises the following specific operation steps:
(1) taking fatty alcohol C and white carbon black A1 according to parts by weight, stirring for 2-3 hours at the temperature of 120-180 ℃, and ensuring that the particle size of the white carbon black is less than 20um, namely, the dispersion M1.
(2) D1 and D2 are mixed and heated, a catalyst D3 is added at the temperature of 50-80 ℃, the reaction time is 0.5-3 hours at the temperature of 100-160 ℃, alkynol silicon polyether D is obtained, the dispersion M1 and polyether B are added, the temperature is reduced to 80-100 ℃, the heat preservation is carried out for 0.5-1 hour, and the mixture is M2.
(3) And (3) spraying M2 onto A2 through a metering pump under the conditions that the temperature is kept at 60-100 ℃, the rotating speed is 500-1000 rpm, and the time is 10-30 s, and mixing to obtain M3.
(4) And screening the mixture M3 to obtain the prepared solid defoaming agent.
The invention has the following advantages:
(1) the alkynol silicon polyether has the advantages of low dynamic surface tension, low foamability, high stability, super wettability and the like, and effectively solves the problem of foaming in a system.
(2) In the preparation process of the thin-layer self-leveling mortar, the alkynol silicon polyether macromolecule system aims at surface shrinkage cavities of the self-leveling mortar, the synergistic effect of the fatty alcohol system and the alkynol silicon polyether aims at the internal hollowing phenomenon of the thin-layer self-leveling mortar, the defoaming and foam inhibiting performance is further enhanced, and the follow-up carrier coats an active substance, so that the storage stability of the defoaming agent is improved.
(3) Due to the existence of hydrophilic groups of the polyether and the alkynol silicon polyether of the product and the emulsifying and dispersing effects of the polyether, the compatibility of the product in mortar is improved, meanwhile, the dispersion of solid powder is caused by high-speed shearing, and the alkynol silicon polyether and the fatty alcohol system of the product further reduce the risk of floating oil, so that the product is suitable for a self-leveling mortar system.
(4) The preparation method is simple, the preparation of the active substance has no high pressure, the product does not need to be dried at high temperature, the preparation method is easy to realize, and the fatty alcohol is adopted to replace the solvent, so that the separation steps are reduced.
Detailed Description
Example 1:
taking 25g of 2-octyl dodecanol and 4g of gas phase method hydrophilic white carbon black (the specific surface area is 50 m) according to the mass portion2And/g) at 120 ℃ for 3 hours, to give dispersion M1-1.
Taking 15.625g of hydrogen-terminated silicone oil (with the hydrogen content of 0.1%) and 9.375g of acetylene alcohol ether (with the molecular weight of 600), mixing and heating, adding 50ppm of a chloroplatinic acid isopropanol solution serving as a catalyst at the temperature of 50 ℃, reacting for 3 hours at the temperature of 100 ℃ to obtain acetylene alcohol silicon polyether D-1, adding dispersion M1-1 and 30g of nonylphenol polyoxyethylene ether, cooling to 80 ℃, and preserving the temperature for 1 hour to obtain M2-1.
Spraying M2-1 to 16g of gas-phase hydrophilic white carbon black (specific surface area 50M) by a metering pump under the conditions of 60 ℃ of temperature, 1000rpm of rotation speed and 30s of time2Mixing the components in the ratio of/g) to obtain M3-1. Subjecting mixture M3-1 toScreening to obtain the prepared solid defoaming agent.
Example 2:
taking 10g of tetradecanol and 16g of precipitation-method hydrophilic white carbon black (the specific surface area is 500 m)2And/g) at 180 ℃ for 2 hours, to give dispersion M1-2.
Taking 4.68g of side hydrogen silicone oil (with the hydrogen content of 0.3 percent and the molecular weight of the side hydrogen silicone oil) and 25.32g of D2 with the molecular weight of 1500, mixing and heating, adding 15ppm of catalyst platinum-alcohol complex at the temperature of 80 ℃, reacting for 0.5 hour at the temperature of 160 ℃ to obtain alkynol silicon polyether D-2, adding dispersion M1-2 and 20g of lauric acid polyoxyethylene ether, cooling at the temperature of 100 ℃, and preserving the heat for 0.5 hour to obtain M2-2.
Spraying M2-2 to 24g hydrophilic precipitated silica (specific surface area 500M) by metering pump at 100 deg.C, 500rpm, and 10s2Mixing the components in the ratio of/g) to obtain M3-2. And screening the mixture M3-2 to obtain the prepared solid defoaming agent.
Example 3:
taking 25g of hexadecanol and 16g of gas-phase hydrophilic white carbon black (the specific surface area is 200 m)2G) at 160 ℃ for 2.5 hours, to give dispersion M1-3.
Mixing and heating 6.25g of end-side hydrogen silicone oil (with the hydrogen content of 0.2%) and 13.75g of butynol ether (with the molecular weight of 1000), adding 3ppm of catalyst platinum-olefin complex at the temperature of 70 ℃, reacting for 2 hours at the temperature of 140 ℃ to obtain alkynol silicon polyether D-3, adding dispersion M1-3 and 15g of sorbitan monostearate, cooling to 90 ℃, and preserving the temperature for 1 hour to obtain M2-3.
Spraying M2-3 to 24g of gas-phase hydrophilic white carbon black (specific surface area 200M) by a metering pump under the conditions of 80 ℃, 800rpm and 20s2And/g) to obtain M3-3. And screening the mixture M3-3 to obtain the prepared solid defoaming agent.
Example 4:
taking 25g of octadecanol and 10.5 g of hydrophilic white carbon black (the specific surface area is 300 m) by precipitation method according to the parts by weight2In terms of a unit of reaction, at a temperature of 120 ℃,stirring for 3 hours to obtain a dispersion M1-4.
1.56g of terminal hydrogen silicone oil with the hydrogen content of 0.3 percent and 8.44g of pentanol ether (with the molecular weight of 1500) are mixed and heated, 5ppm of catalyst platinum-ether complex is added at the temperature of 80 ℃, the reaction time is 3 hours at the temperature of 100 ℃, thereby obtaining alkynol silicon polyether D-4, dispersion M1-4 and 30g of sorbitan monostearate polyoxyethylene ether ester are added, the temperature is reduced at 80 ℃, and the heat preservation is carried out for 0.5 hour, thereby obtaining M2-4.
Spraying M2-4 to 24.5g hydrophilic precipitated silica (specific surface area 300M) by metering pump at 60 deg.C, 1000rpm, and time of 10s2Mixing the components in the ratio of/g) to obtain M3-4. And screening the mixture M3-4 to obtain the prepared solid defoaming agent.
Example 5:
in a reaction vessel, 25g of behenyl alcohol and 4g of gas phase method hydrophilic white carbon black (specific surface area 50 m) are taken according to the mass portion2And/g) at 180 ℃ for 3 hours, to give dispersion M1-5.
Mixing and heating 15.625g of side hydrogen silicone oil (with the hydrogen content of 0.1%) and 9.375g of hexynol ether (with the molecular weight of 600), adding 30ppm of catalyst platinum-ether complex at the temperature of 60 ℃, reacting for 1.5 hours at the temperature of 150 ℃ to obtain alkynol silicon polyether D-5, adding dispersion M1-5 and 30g of castor oil polyoxyethylene ether, cooling to 100 ℃, and preserving the temperature for 1 hour to obtain M2-5.
Spraying M2-5 to 16g of gas-phase hydrophilic white carbon black (specific surface area 50M) by a metering pump under the conditions of 100 ℃ of temperature, 1000rpm of rotation speed and 15s of time2Mixing the components in the ratio of/g) to obtain M3-5. And screening the mixture M3-5 to obtain the prepared solid defoaming agent.
Example 6:
taking 15g of octadecanol and 9g of precipitation-method hydrophilic white carbon black (the specific surface area is 500 m) in a reaction vessel according to parts by mass2And/g) at 120 ℃ for 2 hours, to give dispersion M1-6.
Taking 4.68g of end side hydrogen silicone oil (with the hydrogen content of 0.3 percent) and 25.32g of butynediol ether (with the molecular weight of 1500), mixing and heating, adding a 10 percent chloroplatinic acid isopropanol solution of 15ppm of catalyst at the temperature of 50 ℃, reacting for 2.5 hours at the temperature of 120 ℃ to obtain alkynol silicon polyether D-6, adding dispersion M1-6 and 20g of sorbitan trioleate, cooling to 90 ℃, and preserving the temperature for 0.5 hours to obtain M2-6.
Spraying M2-6 to 26g of precipitation-process hydrophilic white carbon black (specific surface area 500M) through a metering pump under the conditions that the temperature is 60 ℃, the rotating speed is 500rpm and the time is 25s2The mixture is mixed to obtain M3-6. And screening the mixture M3-6 to obtain the prepared solid defoaming agent.
Comparative example 1:
taking 25g of 2-octyl dodecanol and 4g of gas phase method hydrophilic white carbon black (the specific surface area is 50 m) according to the mass portion2And/g) at 120 ℃ for 3 hours, to give dispersion M1-1.
Preparing 25g of polyether modified polysiloxane according to the preparation method in the patent CN104130879A, adding dispersion M1-1 and 30g of nonylphenol polyoxyethylene ether, cooling to 80 ℃, and preserving the temperature for 1 hour to obtain M2-7.
Spraying M2-7 to 16g of gas-phase hydrophilic white carbon black (specific surface area 50M) by a metering pump under the conditions of 60 ℃ of temperature, 1000rpm of rotation speed and 30s of time2The mixture is mixed to obtain M3-7. And screening the mixture M3-7 to obtain the prepared solid defoaming agent.
Comparative example 2:
taking 10g of tetradecanol and 16g of precipitation-method hydrophilic white carbon black (the specific surface area is 500 m)2And/g) at 180 ℃ for 2 hours, to give dispersion M1-2.
30g of polyether modified polysiloxane is prepared according to the preparation method in the patent CN101298027A, dispersion M1-2 and 20g of lauric acid polyoxyethylene ether are added, the temperature is reduced at 100 ℃, and the temperature is kept for 0.5 hour, so that M2-8 is obtained.
Spraying M2-8 to 24g hydrophilic precipitated silica (specific surface area 500M) by metering pump at 100 deg.C, 500rpm, and 10s2Mixing the components in the ratio of/g) to obtain M3-8. And screening the mixture M3-8 to obtain the prepared solid defoaming agent.
Comparative example 3:
taking 25g of sorbitan monostearate and 16g of gas-phase hydrophilic white carbon black (the specific surface area is 200 m)2G) was stirred at 160 ℃ for 2.5 hours to give dispersion M1-7.
Mixing and heating 6.25g of end-side hydrogen silicone oil (with the hydrogen content of 0.2%) and 13.75g of butynol ether (with the molecular weight of 1000), adding 3ppm of catalyst platinum-olefin complex at the temperature of 70 ℃, reacting for 2 hours at the temperature of 140 ℃ to obtain alkynol silicon polyether D-3, adding dispersion M1-7 and 15g of sorbitan monostearate, cooling to 90 ℃, and preserving the temperature for 1 hour to obtain M2-9.
Spraying M2-9 to 24g of gas-phase hydrophilic white carbon black (specific surface area 200M) by a metering pump under the conditions of 80 ℃, 800rpm and 20s2Mixing the components in the ratio of/g) to obtain M3-9. And screening the mixture M3-9 to obtain the prepared solid defoaming agent.
Comparative example 4
Mixing 6.81g of hydrogen-containing end-hydrogen silicone oil with 0.3 percent of hydrogen content and 28.19g of pentanol ether (with the molecular weight of 1500), heating, adding 5ppm of catalyst platinum-ether complex at the temperature of 80 ℃, reacting for 3 hours at the temperature of 100 ℃ to obtain alkynol silicon polyether D-4, and adding 10.5 precipitation-method hydrophilic white carbon black (the specific surface area is 300 m)2Per gram), 30 grams of sorbitan monostearate polyoxyethylene ether ester, and the M2-10 is obtained after the temperature is reduced to 80 ℃ and the heat is preserved for 0.5 hour.
Spraying M2-10 to 24.5g hydrophilic precipitated silica (specific surface area 300M) by metering pump at 60 deg.C, 1000rpm, and time of 10s2Mixing the components in the ratio of/g) to obtain M3-10. And sieving the mixture M3-10 to obtain the prepared solid defoaming agent.
Comparative example 5
Mixing and heating 15.625g of side hydrogen silicone oil (with the hydrogen content of 0.1%) and 9.375g of hexynol ether (with the molecular weight of 600), adding 30ppm of catalyst platinum-ether complex at the temperature of 60 ℃, reacting for 1.5 hours at the temperature of 150 ℃ to obtain alkynol silicon polyether D-5, adding 25g of behenyl alcohol and 30g of castor oil polyoxyethylene ether, cooling to 100 ℃, and preserving the temperature for 1 hour to obtain M2-11.
Spraying M2-11 to 20g of gas-phase hydrophilic white carbon black (specific surface area 50M) by a metering pump under the conditions of 100 ℃ of temperature, 1000rpm of rotation speed and 15s of time2The mixture is mixed to obtain M3-11. And screening the mixture M3-11 to obtain the prepared solid defoaming agent.
Performance testing of solid antifoam agent
Testing of Cement mortar Density
The compressive strength is tested according to the standard JC/T985-2017 'Cement-based self-leveling mortar for ground', and the surface state of the self-leveling cement mortar is observed in the period after the self-leveling cement mortar is hardened; mixing the wet mortar density according to a method specified in JC/T985-2017 standard, vertically and slowly pouring the self-leveling mortar into a container with a specified volume, weighing the mass of the self-leveling mortar under different volumes after the initial and drying, and calculating the surface density.
Surface density test results:
surface phenomena:
remarking: in the above table, 0 indicates no bubble and no precipitation on the surface, "+" indicates more bubbles and precipitation on the surface, and more "+" indicates more bubbles and more precipitation.
The test result shows that the density of the cement paste added with the defoamer prepared by the application example is higher than that of a blank sample and a comparative sample, and the surface has no floating oil or precipitation, so that the solid defoamer prepared by the method has good compatibility and excellent defoaming and foam inhibiting performance in thin-layer self-leveling mortar under the high-speed shearing condition.
Claims (8)
1. The defoaming agent applied to the thin-layer self-leveling cement mortar and the preparation method thereof are characterized in that the defoaming agent comprises the following components:
A. the white carbon black is classified into precipitation-process white carbon black and gas-phase white carbon black according to the manufacturing method, is classified into hydrophilic white carbon black and hydrophobic white carbon black according to surface properties, is preferably hydrophilic white carbon black, is specifically selected from gas-phase hydrophilic white carbon black and precipitation-process hydrophilic white carbon black, and has a specific surface area of 50-500 m2The amount of the white carbon black accounts for 20-40% of the total mass of the defoaming agent, and the white carbon black is divided into two parts, namely A1 and A2;
B. polyether is a nonionic surfactant and is selected from nonylphenol polyoxyethylene ether, octylphenol polyoxyethylene ether, lauric acid polyoxyethylene ether, oleic acid polyoxyethylene ether, sorbitan monostearate, sorbitan monooleate, sorbitan tristearate, sorbitan trioleate, sorbitan monostearate polyoxyethylene ether ester, sorbitan monooleate polyoxyethylene ether ester, sorbitan tristearate polyoxyethylene ether ester and castor oil polyoxyethylene ether, and the using amount of the polyether accounts for 15-30% of the total mass of the defoaming agent;
C. the fatty alcohol is saturated fatty alcohol with 1-30 carbon atoms, and the using amount of the fatty alcohol accounts for 10-25% of the total mass of the defoaming agent;
D. the alkynol silicon polyether is prepared from hydrogen-containing silicone oil D1 and alkynol polyether D2 under the action of a catalyst D3, and the using amount of the alkynol silicon polyether accounts for 10-30% of the total mass of the defoaming agent;
the preparation method of the defoaming agent applied to the thin-layer self-leveling cement mortar comprises the following steps:
(1) taking fatty alcohol C and white carbon black A1 according to parts by weight, stirring for 2-3 hours at the temperature of 120-180 ℃, and ensuring that the particle size of the white carbon black is less than 20um, namely, dispersion M1;
(2) d1 and D2 are mixed and heated, a catalyst D3 is added at the temperature of 50-80 ℃, the reaction time is 0.5-3 hours at the temperature of 100-160 ℃, alkynol silicon polyether D is obtained, a dispersion M1 and polyether B are added, the temperature is reduced to 80-100 ℃, the heat is preserved for 0.5-1 hour, and the mixture is M2;
(3) spraying M2 onto A2 through a metering pump under the conditions that the temperature is kept at 60-100 ℃, the rotating speed is 500-1000 rpm, and the time is 10-30 s, and mixing to obtain M3;
(4) and screening the mixture M3 to obtain the prepared solid defoaming agent.
2. The defoaming agent applied to the thin-layer self-leveling cement mortar and the preparation method thereof as claimed in claim 1, wherein the white carbon black A1 is mixed with fatty alcohol for use, and the using amount of the white carbon black A1 accounts for 20-40% of the total mass of the white carbon black; the white carbon black A2 is used as a carrier, and the using amount of the white carbon black A2 accounts for 15-30% of the total mass of the white carbon black.
3. The defoaming agent applied to the thin-layer self-leveling cement mortar and the preparation method thereof as claimed in claim 1, wherein the fatty alcohol is preferably a fatty alcohol with 12-30 carbon atoms, and is specifically selected from 2-octyldodecanol, tetradecanol, hexadecanol, octadecanol, behenyl alcohol and hexacosanol.
4. The defoaming agent for self-leveling thin cement mortar and its preparation method as claimed in claim 1, wherein the hydrogen-containing silicone oil D1 is selected from hydrogen-terminated silicone oil, side hydrogen-terminated silicone oil, and side hydrogen-terminated silicone oil.
5. The defoaming agent for the thin-layer self-leveling cement mortar as claimed in claim 1, wherein the alkynol polyether D2 is selected from the group consisting of acetylene ether, propiolic ether, butynol glycol ether, pentynol ether, hexynol ether, and has a molecular weight range of 600-1500.
6. The defoaming agent applied to the thin-layer self-leveling cement mortar and the preparation method thereof as claimed in claim 1, wherein the molar ratio of the alkynol polyether to the hydrogen-containing silicone oil is 1: 1-1.2: 1.
7. The defoaming agent for self-leveling thin cement mortar as claimed in claim 1, wherein the catalyst D3 is selected from platinum-alcohol complex, platinum-olefin complex, platinum-alkoxide complex, platinum-ether complex, platinum-ketone complex, and chloroplatinic acid isopropanol solution with mass concentration of 1-20%, and the amount is calculated as Pt mass/(total mass of alkyne polyether and hydrogen-containing silicone oil) 3-50 ppm.
8. The defoaming agent for the thin-layer self-leveling cement mortar and the preparation method thereof as claimed in claim 1, wherein the catalyst D3 is preferably a 1% by mass concentration solution of chloroplatinic acid in isopropanol.
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| CN115595160A (en) * | 2022-08-22 | 2023-01-13 | 佛山市南海大田化学有限公司（Cn） | Wetting agent used in fatty alcohol emulsion, fatty alcohol emulsion and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045175A (en) * | 2021-11-19 | 2022-02-15 | 南京林业大学 | Defoaming-type wetting organic silicon surfactant and preparation method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19744834A1 (en) * | 1997-10-10 | 1999-04-15 | Johann Friedrich Passut | Hardwearing and/or decorative inlaid element production for e.g. traffic markings |
| CN1919936A (en) * | 2006-08-31 | 2007-02-28 | 南京四新科技应用研究所有限公司 | Organosilicon defoaming agent for water-based system and preparation method thereof |
| CN101780383A (en) * | 2009-12-07 | 2010-07-21 | 江苏赛欧信越消泡剂有限公司 | Aqueous emulsion non-silicon defoamer and preparation method thereof |
| CN102160939A (en) * | 2011-03-02 | 2011-08-24 | 江苏斯德瑞克化工有限公司 | Self-emulsifying molecular antifoaming agent and preparation method thereof |
| CN109289255A (en) * | 2018-12-10 | 2019-02-01 | 南京瑞思化学技术有限公司 | A kind of Sudo controlling compositions and preparation method thereof |
| CN109316782A (en) * | 2018-10-01 | 2019-02-12 | 南京瑞思化学技术有限公司 | A kind of preparation and application of modified polyorganosiloxane composition |
| CN109364534A (en) * | 2018-10-09 | 2019-02-22 | 南京瑞思化学技术有限公司 | A kind of modified polyether composition |
| CN110272222A (en) * | 2019-05-07 | 2019-09-24 | 江苏四新科技应用研究所股份有限公司 | A kind of gravity flowing levelling mortar solid defoaming agent and preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1809800A (en) * | 1998-10-29 | 2000-05-22 | Sun Drilling Products, Inc. | Antifoaming agents for drilling fluids used in the drilling of subterranean wells |
| WO2005042438A1 (en) * | 2003-11-03 | 2005-05-12 | Mediterránea De Investigación Científica, S.L. | Stain-resistant protector for glazed earthenware ceramic tiles and other similar architectonic substrates, composition, application method and polymerisation (curing) using ultraviolet radiation |
| JP6448111B2 (en) * | 2014-02-13 | 2019-01-09 | 伯東株式会社 | Antifoam for building board manufacturing process |
| CN105153785B (en) * | 2015-09-08 | 2017-06-23 | 江苏四新科技应用研究所股份有限公司 | A kind of water paint emulsion type defoaming agent and preparation method thereof |
| CN105385426B (en) * | 2015-11-20 | 2019-07-26 | 南京云越新材料科技有限公司 | A kind of oil-well cement high efficiency composition defoaming agent and preparation method thereof |
| CN107117851B (en) * | 2017-05-09 | 2019-07-02 | 江苏四新科技应用研究所股份有限公司 | A kind of preparation method of oil-well cement powder defoaming agent |
| CN109851276A (en) * | 2018-12-26 | 2019-06-07 | 上海东大化学有限公司 | A kind of organic silicon defoamer and preparation method thereof |
-
2019
- 2019-12-06 CN CN201911237479.XA patent/CN111056765B/en active Active
- 2019-12-29 WO PCT/CN2019/129655 patent/WO2021109299A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19744834A1 (en) * | 1997-10-10 | 1999-04-15 | Johann Friedrich Passut | Hardwearing and/or decorative inlaid element production for e.g. traffic markings |
| CN1919936A (en) * | 2006-08-31 | 2007-02-28 | 南京四新科技应用研究所有限公司 | Organosilicon defoaming agent for water-based system and preparation method thereof |
| CN101780383A (en) * | 2009-12-07 | 2010-07-21 | 江苏赛欧信越消泡剂有限公司 | Aqueous emulsion non-silicon defoamer and preparation method thereof |
| CN102160939A (en) * | 2011-03-02 | 2011-08-24 | 江苏斯德瑞克化工有限公司 | Self-emulsifying molecular antifoaming agent and preparation method thereof |
| CN109316782A (en) * | 2018-10-01 | 2019-02-12 | 南京瑞思化学技术有限公司 | A kind of preparation and application of modified polyorganosiloxane composition |
| CN109364534A (en) * | 2018-10-09 | 2019-02-22 | 南京瑞思化学技术有限公司 | A kind of modified polyether composition |
| CN109289255A (en) * | 2018-12-10 | 2019-02-01 | 南京瑞思化学技术有限公司 | A kind of Sudo controlling compositions and preparation method thereof |
| CN110272222A (en) * | 2019-05-07 | 2019-09-24 | 江苏四新科技应用研究所股份有限公司 | A kind of gravity flowing levelling mortar solid defoaming agent and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577835A (en) * | 2020-04-30 | 2021-11-02 | 江苏四新科技应用研究所股份有限公司 | Organic silicon composition |
| CN113577835B (en) * | 2020-04-30 | 2024-03-29 | 江苏四新科技应用研究所股份有限公司 | Organic silicon composition |
| CN114195421A (en) * | 2020-09-17 | 2022-03-18 | 江苏尼高科技有限公司 | Preparation method of polycarboxylic acid admixture for machine-made sand concrete |
| CN114195421B (en) * | 2020-09-17 | 2023-08-29 | 江苏尼高科技有限公司 | Preparation method of polycarboxylic acid additive for machine-made sand concrete |
| CN115595160A (en) * | 2022-08-22 | 2023-01-13 | 佛山市南海大田化学有限公司（Cn） | Wetting agent used in fatty alcohol emulsion, fatty alcohol emulsion and preparation method thereof |
| CN115445251A (en) * | 2022-09-02 | 2022-12-09 | 南京林业大学 | Butynediol ether modified organic silicon defoaming agent and preparation method thereof |
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| CN111056765B (en) | 2021-11-19 |
| WO2021109299A1 (en) | 2021-06-10 |
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