CN113998970A - Foaming thermal insulation mortar material and manufacturing method thereof - Google Patents
Foaming thermal insulation mortar material and manufacturing method thereof Download PDFInfo
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- CN113998970A CN113998970A CN202111229015.1A CN202111229015A CN113998970A CN 113998970 A CN113998970 A CN 113998970A CN 202111229015 A CN202111229015 A CN 202111229015A CN 113998970 A CN113998970 A CN 113998970A
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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
- C04B28/14—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 calcium sulfate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
A foaming thermal insulation mortar material comprises the following raw materials: the foaming agent comprises tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:0.5-1, and the mass ratio of the foaming agent to the foam stabilizer is 1:0.2-0.4, and the chitosan is grafted with tetradecyl dimethyl tertiary amine, so that the chitosan has better hydrophilicity and water solubility; can prevent the liquid film flowing back, improve the liquid phase viscosity to can form the bubble membrane of high strength, make the interior active matter molecular structure of bubble membrane inseparabler, thereby make the foam have stronger resistance to deformation performance and rich in elasticity, and be favorable to the maintenance of intramembranous moisture and hinder the gas seepage in the bubble.
Description
Technical Field
The invention relates to a foaming thermal insulation mortar material and a manufacturing method thereof, belonging to the field of thermal insulation mortar materials.
Background
The inorganic thermal mortar is used as an indispensable thermal insulation material for building energy conservation, and is mainly used for leveling staircases and wall surfaces. The foaming agent has the advantages of light weight, heat preservation, heat insulation, sound insulation, good anti-seismic performance and the like, plays an important role in developing heat preservation and heat insulation technologies and materials of novel energy-saving wall surfaces and roofs, and after the foaming agent is added, the unconsumed foaming agent can be continuously decomposed in the later period due to the slow decomposition rate of the foaming agent, so that the foam mortar is collapsed or the air holes are unevenly distributed.
Disclosure of Invention
In order to overcome the defects that the foaming effect of the foaming agent in the prior art is unstable, the foam is easy to break and fade, the internal gap distribution of the mortar is uneven and the like, the invention provides the high-performance foaming stable thermal insulation mortar,
a foaming thermal insulation mortar material comprises the following raw materials: cement, sand, slag, gypsum, a water reducing agent, a foaming agent, a foam stabilizer and water, wherein the foaming agent consists of tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:0.5-1, the mass ratio of the foaming agent to the foam stabilizer is 1:0.2-0.4,
the preparation method of the foam stabilizer comprises the following steps: (A) weighing tetradecyl dimethyl tertiary amine, adding into ethyl acetate, and stirring at high speed to form a dropping liquid A, wherein the mass ratio of the tetradecyl dimethyl tertiary amine to the ethyl acetate is 1-2: 20;
(B) dispersing chitosan into methanol, adding pH regulator to regulate pH to 8-8.5, controlling temperature at 40-50 deg.C, and maintaining for 30-40 min to form chitosan alkali dispersion;
(C) slowly dripping the dripping solution A into the chitosan alkali dispersion liquid at the dripping speed of 3-5 ml/min, continuously reacting for 2-3 hours at the reaction temperature of 60-75 ℃, and then adding the sec-octanol polyoxyethylene ether into the reaction liquid; cooling to 30-40 deg.C, and stirring for 3-4 hr; the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 5-10 percent of secondary octanol polyoxyethylene ether, wherein the addition amount of the secondary octanol polyoxyethylene ether is 10-20 percent of the mass of the chitosan alkali dispersion liquid;
(D) adding the reaction liquid into a reaction kettle, cooling to room temperature, adding methacrolein, pressurizing to 0.4-0.5MPa, maintaining the pressure for 20-40 minutes, then decompressing, filtering to remove precipitates, and obtaining the foam stabilizer.
In a preferred embodiment, the foaming thermal mortar material is characterized in that the mass ratio of the foaming agent to the foam stabilizer is 1: 0.3.
The foaming thermal mortar material is characterized in that the mass ratio of the tea saponin to the sodium lauroyl sarcosine is 1: 0.5.
As a preferable embodiment, the foaming thermal mortar material is characterized in that 1 part of chitosan in the step (B) is dispersed in 15-30 parts of methanol.
In a preferred embodiment, the foaming thermal mortar material is characterized in that the pH regulator is selected from sodium hydroxide.
As a preferred embodiment, the foaming thermal mortar material is characterized in that the mass ratio of the dropping liquid a to the chitosan alkali dispersion liquid is 1: 5,
as a preferable embodiment, the foaming thermal mortar material is characterized in that the amount of the methacrolein added in the step (D) is 10-15% of the mass of the chitosan alkali dispersion liquid,
the preparation method of the foaming thermal insulation mortar material comprises the following steps: it is characterized in that the preparation method is characterized in that,
(1) weighing 15-20 parts of cement, 10-30 parts of sand, 3-5 parts of slag, 1-2 parts of gypsum, 0.1-0.2 part of water reducing agent, 1 part of foaming agent, 0.2-0.4 part of foam stabilizer and 6-10 parts of water,
(2) firstly, uniformly mixing tea saponin and sodium lauroyl sarcosinate, adding water, raising the temperature to 50-60 ℃, stirring for 10-15 minutes at the stirring speed of 200 plus materials and 300 r/min, then adding the foam stabilizer, continuously stirring for 5 minutes to obtain a foaming solution,
(3) sequentially adding cement, sand, slag, gypsum and a water reducing agent into a mortar stirrer and uniformly stirring;
(4) and adding the foaming liquid into a mortar stirrer, and stirring for 5 minutes to obtain the foaming thermal insulation mortar material.
In a preferred embodiment, the preparation method of the foaming thermal mortar material is characterized in that the cement is 42.5 portland cement.
As a preferred embodiment, the preparation method of the foaming thermal mortar material is characterized in that the slag is S95-grade slag powder.
According to the invention, chitosan is grafted with tetradecyl dimethyl tertiary amine, so that the chitosan has better hydrophilicity and water solubility; can prevent the liquid film flowing back, improve the liquid phase viscosity to can form the bubble membrane of high strength, make the interior active matter molecular structure of bubble membrane inseparabler, thereby make the foam have stronger resistance to deformation performance and rich in elasticity, and be favorable to the maintenance of intramembranous moisture and hinder the gas seepage in the bubble. Chitosan is also grafted with methacrolein, which in fact has hydrophobic groups, reducing the surface tension. It replaces the molecules in the surface layer of liquid, so that the concentration of the molecules in the surface layer is greater than that in the solution, the surface free energy is reduced, and the stability of the bubbles is improved.
Detailed Description
Example 1
A foaming thermal insulation mortar material comprises the following raw materials: cement, sand, slag, gypsum, a water reducing agent, a foaming agent, a foam stabilizer and water, wherein the foaming agent is prepared from tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:0.7, the mass ratio of the foaming agent to the foam stabilizer is 1:0.2,
the preparation method of the foam stabilizer comprises the following steps: (A) weighing tetradecyl dimethyl tertiary amine, adding into ethyl acetate, and stirring at high speed to form a dropping liquid A, wherein the mass ratio of the tetradecyl dimethyl tertiary amine to the ethyl acetate is 1: 20;
(B) dispersing chitosan into methanol, adding a pH regulator, regulating the pH value to 8, controlling the temperature to be 50 ℃, and preserving the temperature for 40 minutes to form chitosan alkali dispersion liquid;
(C) slowly dripping the dripping solution A into the chitosan alkali dispersion liquid at the dripping speed of 5 ml/min, continuously reacting for 2 hours at the reaction temperature of 60 ℃, and then adding the sec-octanol polyoxyethylene ether into the reaction liquid; the temperature is reduced to 30 ℃ and the stirring is continued for 3 hours; the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 6, the addition amount of the secondary octanol polyoxyethylene ether is 15 percent of the mass of the chitosan alkali dispersion liquid;
(D) adding the reaction liquid into a reaction kettle, cooling to room temperature, adding methacrolein, pressurizing to 0.4MPa, maintaining the pressure for 30 minutes, then decompressing, filtering to remove precipitates to obtain a foam stabilizer,
the preparation method of the foaming thermal insulation mortar material comprises the following steps: it is characterized in that the preparation method is characterized in that,
(1) weighing 20 parts of cement, 20 parts of sand, 3 parts of slag, 1 part of gypsum, 0.15 part of water reducing agent, 1 part of foaming agent, 0.2 part of foam stabilizer and 10 parts of water,
(2) firstly, uniformly mixing tea saponin and sodium lauroyl sarcosinate, adding water, raising the temperature to 50 ℃, stirring for 10 minutes at the stirring speed of 300 r/min, then adding the foam stabilizer, continuously stirring for 5 minutes to obtain foaming liquid,
(3) sequentially adding cement, sand, slag, gypsum and a water reducing agent into a mortar stirrer and uniformly stirring;
(4) and adding the foaming liquid into a mortar stirrer, and stirring for 5 minutes to obtain the foaming thermal insulation mortar material.
Example 2
A foaming thermal insulation mortar material comprises the following raw materials: cement, sand, slag, gypsum, a water reducing agent, a foaming agent, a foam stabilizer and water, wherein the foaming agent is prepared from tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:0.6, the mass ratio of the foaming agent to the foam stabilizer is 1:0.3,
the preparation method of the foam stabilizer comprises the following steps: (A) weighing tetradecyl dimethyl tertiary amine, adding into ethyl acetate, and stirring at high speed to form a dropping liquid A, wherein the mass ratio of the tetradecyl dimethyl tertiary amine to the ethyl acetate is 1.5: 20;
(B) dispersing chitosan into methanol, adding a pH regulator, adjusting the pH value to 8.5, controlling the temperature at 45 ℃, and preserving the heat for 40 minutes to form chitosan alkali dispersion liquid;
(C) slowly dripping the dripping solution A into the chitosan alkali dispersion liquid at the dripping speed of 5 ml/min, continuously reacting for 2 hours at the reaction temperature of 65 ℃, and then adding the sec-octanol polyoxyethylene ether into the reaction liquid; the temperature is reduced to 35 ℃ and the stirring is continued for 4 hours; the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 8, the addition amount of the secondary octanol polyoxyethylene ether is 10 percent of the mass of the chitosan alkali dispersion liquid;
(D) adding the reaction liquid into a reaction kettle, cooling to room temperature, adding methacrolein, pressurizing to 0.5MPa, maintaining the pressure for 20 minutes, then decompressing, filtering to remove the precipitate to obtain a foam stabilizer,
the preparation method of the foaming thermal insulation mortar material comprises the following steps: it is characterized in that the preparation method is characterized in that,
(1) weighing 15 parts of cement, 25 parts of sand, 4 parts of slag, 2 parts of gypsum, 0.2 part of a water reducing agent, 1 part of a foaming agent, 0.3 part of a foam stabilizer and 8 parts of water,
(2) firstly, uniformly mixing tea saponin and sodium lauroyl sarcosinate, adding water, raising the temperature to 60 ℃, stirring for 10-15 minutes at the stirring speed of 250 r/min, then adding the foam stabilizer, continuously stirring for 5 minutes to obtain foaming liquid,
(3) sequentially adding cement, sand, slag, gypsum and a water reducing agent into a mortar stirrer and uniformly stirring;
(4) and adding the foaming liquid into a mortar stirrer, and stirring for 5 minutes to obtain the foaming thermal insulation mortar material.
Example 3
A foaming thermal insulation mortar material comprises the following raw materials: cement, sand, slag, gypsum, a water reducing agent, a foaming agent, a foam stabilizer and water, wherein the foaming agent is prepared from tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:0.5, the mass ratio of the foaming agent to the foam stabilizer is 1: 0.4,
the preparation method of the foam stabilizer comprises the following steps: (A) weighing tetradecyl dimethyl tertiary amine, adding into ethyl acetate, and stirring at high speed to form a dropping liquid A, wherein the mass ratio of the tetradecyl dimethyl tertiary amine to the ethyl acetate is 1: 10;
(B) dispersing chitosan into methanol, adding a pH regulator, regulating the pH value to 8, controlling the temperature to be 40 ℃, and preserving the temperature for 40 minutes to form chitosan alkali dispersion liquid;
(C) slowly dripping the dripping solution A into the chitosan alkali dispersion liquid at the dripping speed of 5 ml/min, continuously reacting for 2.5 hours at the reaction temperature of 70 ℃, and then adding the sec-octanol polyoxyethylene ether into the reaction liquid; the temperature is reduced to 40 ℃ and the stirring is continued for 4 hours; the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 9, the addition amount of the secondary octanol polyoxyethylene ether is 20 percent of the mass of the chitosan alkali dispersion liquid;
(D) adding the reaction liquid into a reaction kettle, cooling to room temperature, adding methacrolein, pressurizing to 0.4MPa, maintaining the pressure for 30 minutes, then decompressing, filtering to remove precipitates to obtain a foam stabilizer,
the preparation method of the foaming thermal insulation mortar material comprises the following steps: it is characterized in that the preparation method is characterized in that,
(1) weighing 16 parts of cement, 15 parts of sand, 3 parts of slag, 1 part of gypsum, 0.2 part of water reducing agent, 1 part of foaming agent, 0.4 part of foam stabilizer and 10 parts of water,
(2) firstly, uniformly mixing tea saponin and sodium lauroyl sarcosinate, adding water, raising the temperature to 55 ℃, stirring for 15 minutes at the stirring speed of 300 r/min, then adding the foam stabilizer, continuously stirring for 5 minutes to obtain foaming liquid,
(3) sequentially adding cement, sand, slag, gypsum and a water reducing agent into a mortar stirrer and uniformly stirring;
(4) and adding the foaming liquid into a mortar stirrer, and stirring for 5 minutes to obtain the foaming thermal insulation mortar material.
Example 4
A foaming thermal insulation mortar material comprises the following raw materials: cement, sand, slag, gypsum, a water reducing agent, a foaming agent, a foam stabilizer and water, wherein the foaming agent is prepared from tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:1, the mass ratio of the foaming agent to the foam stabilizer is 1:0.25,
the preparation method of the foam stabilizer comprises the following steps: (A) weighing tetradecyl dimethyl tertiary amine, adding into ethyl acetate, and stirring at high speed to form a dropping liquid A, wherein the mass ratio of the tetradecyl dimethyl tertiary amine to the ethyl acetate is 1: 20;
(B) dispersing chitosan into methanol, adding a pH regulator, regulating the pH value to 8.5, controlling the temperature to be 50 ℃, and preserving the heat for 40 minutes to form chitosan alkali dispersion liquid;
(C) slowly dripping the dripping solution A into the chitosan alkali dispersion liquid at the dripping speed of 3 ml/min, continuously reacting for 2 hours at the reaction temperature of 75 ℃, and then adding the sec-octanol polyoxyethylene ether into the reaction liquid; the temperature is reduced to 35 ℃ and the stirring is continued for 3 hours; the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 5, the addition amount of the secondary octanol polyoxyethylene ether is 15 percent of the mass of the chitosan alkali dispersion liquid;
(D) adding the reaction liquid into a reaction kettle, cooling to room temperature, adding methacrolein, pressurizing to 0.4MPa, maintaining the pressure for 30 minutes, then decompressing, filtering to remove precipitates to obtain a foam stabilizer,
the preparation method of the foaming thermal insulation mortar material comprises the following steps: it is characterized in that the preparation method is characterized in that,
(1) weighing 18 parts of cement, 20 parts of sand, 4 parts of slag, 1 part of gypsum, 0.1 part of water reducing agent, 1 part of foaming agent, 0.25 part of foam stabilizer and 7 parts of water,
(2) firstly, uniformly mixing tea saponin and sodium lauroyl sarcosinate, adding water, raising the temperature to 50 ℃, stirring for 10 minutes at the stirring speed of 300 r/min, then adding the foam stabilizer, continuously stirring for 5 minutes to obtain foaming liquid,
(3) sequentially adding cement, sand, slag, gypsum and a water reducing agent into a mortar stirrer and uniformly stirring;
(4) and adding the foaming liquid into a mortar stirrer, and stirring for 5 minutes to obtain the foaming thermal insulation mortar material.
Example 5
A foaming thermal insulation mortar material comprises the following raw materials: cement, sand, slag, gypsum, a water reducing agent, a foaming agent, a foam stabilizer and water, wherein the foaming agent is prepared from tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:0.8, the mass ratio of the foaming agent to the foam stabilizer is 1:0.35,
the preparation method of the foam stabilizer comprises the following steps: (A) weighing tetradecyl dimethyl tertiary amine, adding into ethyl acetate, and stirring at high speed to form a dropping liquid A, wherein the mass ratio of the tetradecyl dimethyl tertiary amine to the ethyl acetate is 1.5: 20;
(B) dispersing chitosan into methanol, adding a pH regulator, regulating the pH value to 8.5, controlling the temperature to be 50 ℃, and preserving the heat for 40 minutes to form chitosan alkali dispersion liquid;
(C) slowly dripping the dripping solution A into the chitosan alkali dispersion liquid at the dripping speed of 4 ml/min, continuously reacting for 2 hours at the reaction temperature of 60 ℃, and then adding the sec-octanol polyoxyethylene ether into the reaction liquid; the temperature is reduced to 35 ℃ and the stirring is continued for 3 hours; the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 8, the addition amount of the secondary octanol polyoxyethylene ether is 12 percent of the mass of the chitosan alkali dispersion liquid;
(D) adding the reaction liquid into a reaction kettle, cooling to room temperature, adding methacrolein, pressurizing to 0.4MPa, maintaining the pressure for 20 minutes, then decompressing, filtering to remove the precipitate to obtain a foam stabilizer,
the preparation method of the foaming thermal insulation mortar material comprises the following steps: it is characterized in that the preparation method is characterized in that,
(1) weighing 15 parts of cement, 15 parts of sand, 3 parts of slag, 2 parts of gypsum, 0.2 part of a water reducing agent, 1 part of a foaming agent, 0.35 part of a foam stabilizer and 7 parts of water,
(2) firstly, uniformly mixing tea saponin and sodium lauroyl sarcosinate, adding water, raising the temperature to 60 ℃, stirring for 15 minutes at the stirring speed of 200 r/min, then adding the foam stabilizer, continuously stirring for 5 minutes to obtain foaming liquid,
(3) sequentially adding cement, sand, slag, gypsum and a water reducing agent into a mortar stirrer and uniformly stirring;
(4) and adding the foaming liquid into a mortar stirrer, and stirring for 5 minutes to obtain the foaming thermal insulation mortar material.
Comparative examples 1 to 3
Commercial foam stabilizers were selected in place of the foam stabilizer of the present invention, and the other raw materials were the same as in examples 1 to 3.
Table: testing various properties of the mortar
It can be seen from examples 1-5 and comparative examples 1-3 that the air exchange of the thermal mortar is more stable within 0-1 hour after the foam stabilizer of the present invention is added, while the foam amount of the thermal mortar is decreased rapidly with the time increase by using the common commercially available foam stabilizer, which also results in a thermal conductivity coefficient inferior to that of the mortar after the foam stabilizer of the present invention is added.
Claims (10)
1. A foaming thermal insulation mortar material comprises the following raw materials: cement, sand, slag, gypsum, a water reducing agent, a foaming agent, a foam stabilizer and water, wherein the foaming agent consists of tea saponin and sodium lauroyl sarcosinate, the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1:0.5-1, the mass ratio of the foaming agent to the foam stabilizer is 1:0.2-0.4,
the preparation method of the foam stabilizer comprises the following steps: (A) weighing tetradecyl dimethyl tertiary amine, adding into ethyl acetate, and stirring at high speed to form a dropping liquid A, wherein the mass ratio of the tetradecyl dimethyl tertiary amine to the ethyl acetate is 1-2: 20;
(B) dispersing chitosan into methanol, adding pH regulator to regulate pH to 8-8.5, controlling temperature at 40-50 deg.C, and maintaining for 30-40 min to form chitosan alkali dispersion;
(C) slowly dripping the dripping solution A into the chitosan alkali dispersion liquid at the dripping speed of 3-5 ml/min, continuously reacting for 2-3 hours at the reaction temperature of 60-75 ℃, and then adding the sec-octanol polyoxyethylene ether into the reaction liquid; cooling to 30-40 deg.C, and stirring for 3-4 hr; the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 5-10 percent of secondary octanol polyoxyethylene ether, wherein the addition amount of the secondary octanol polyoxyethylene ether is 10-20 percent of the mass of the chitosan alkali dispersion liquid;
(D) adding the reaction liquid into a reaction kettle, cooling to room temperature, adding methacrolein, pressurizing to 0.4-0.5MPa, maintaining the pressure for 20-40 minutes, then decompressing, filtering to remove precipitates, and obtaining the foam stabilizer.
2. The foamed thermal mortar material according to claim 1, wherein the mass ratio of the foaming agent to the foam stabilizer is 1: 0.3.
3. The foaming thermal mortar material of claim 1, wherein the mass ratio of the tea saponin to the sodium lauroyl sarcosinate is 1: 0.5.
4. The foamed thermal mortar material according to claim 1, wherein 1 part of chitosan in step (B) is dispersed in 15-30 parts of methanol.
5. The foamed thermal mortar material of claim 1, wherein the pH adjuster is selected from sodium hydroxide.
6. The foaming thermal mortar material of claim 1, wherein the mass ratio of the dropping liquid A to the chitosan alkali dispersion liquid is 1: 5.
7. the foamed thermal mortar material according to claim 1, wherein methacrolein is added in the step (D) in an amount of 10 to 15% by mass based on the chitosan alkali dispersion.
8. A method for preparing the foaming thermal mortar material according to any one of claims 1 to 8: it is characterized in that the preparation method is characterized in that,
(1) weighing 15-20 parts of cement, 10-30 parts of sand, 3-5 parts of slag, 1-2 parts of gypsum, 0.1-0.2 part of water reducing agent, 1 part of foaming agent, 0.2-0.4 part of foam stabilizer and 6-10 parts of water,
(2) firstly, uniformly mixing tea saponin and sodium lauroyl sarcosinate, adding water, raising the temperature to 50-60 ℃, stirring for 10-15 minutes at the stirring speed of 200 plus materials and 300 r/min, then adding the foam stabilizer, continuously stirring for 5 minutes to obtain a foaming solution,
(3) sequentially adding cement, sand, slag, gypsum and a water reducing agent into a mortar stirrer and uniformly stirring;
(4) and adding the foaming liquid into a mortar stirrer, and stirring for 5 minutes to obtain the foaming thermal insulation mortar material.
9. The method for preparing a foamed thermal mortar material according to claim 1, wherein the cement is 42.5 portland cement.
10. The method for preparing a foamed thermal mortar material according to claim 1, wherein the slag is S95 grade slag powder.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443177A (en) * | 2011-11-01 | 2012-05-09 | 陕西科技大学 | Method for preparing amphoteric chitosan water reducing agents |
| CN102964141A (en) * | 2012-10-26 | 2013-03-13 | 安徽艾柯泡塑股份有限公司 | High-performance foaming agent for lightweight thermal insulation material |
| JP2016135723A (en) * | 2015-01-23 | 2016-07-28 | 国立大学法人山口大学 | Porous geopolymer hardened body |
| CN108264324A (en) * | 2018-01-23 | 2018-07-10 | 合肥峰腾节能科技有限公司 | A kind of preparation method of novel energy saving thermal insulation material |
| CN110272245A (en) * | 2019-07-12 | 2019-09-24 | 成都新柯力化工科技有限公司 | A kind of the sponge urban water-through concrete and preparation method of high intensity |
| CN110668841A (en) * | 2019-10-22 | 2020-01-10 | 张国浩 | Durable foam concrete and preparation method thereof |
| CN111393110A (en) * | 2020-03-28 | 2020-07-10 | 德清高盛交通科技有限公司 | Full-machine-made sand masonry mortar with limestone as aggregate and preparation method thereof |
-
2021
- 2021-10-21 CN CN202111229015.1A patent/CN113998970B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443177A (en) * | 2011-11-01 | 2012-05-09 | 陕西科技大学 | Method for preparing amphoteric chitosan water reducing agents |
| CN102964141A (en) * | 2012-10-26 | 2013-03-13 | 安徽艾柯泡塑股份有限公司 | High-performance foaming agent for lightweight thermal insulation material |
| JP2016135723A (en) * | 2015-01-23 | 2016-07-28 | 国立大学法人山口大学 | Porous geopolymer hardened body |
| CN108264324A (en) * | 2018-01-23 | 2018-07-10 | 合肥峰腾节能科技有限公司 | A kind of preparation method of novel energy saving thermal insulation material |
| CN110272245A (en) * | 2019-07-12 | 2019-09-24 | 成都新柯力化工科技有限公司 | A kind of the sponge urban water-through concrete and preparation method of high intensity |
| CN110668841A (en) * | 2019-10-22 | 2020-01-10 | 张国浩 | Durable foam concrete and preparation method thereof |
| CN111393110A (en) * | 2020-03-28 | 2020-07-10 | 德清高盛交通科技有限公司 | Full-machine-made sand masonry mortar with limestone as aggregate and preparation method thereof |
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