CN111154306A - Double-component waterproof interior wall putty - Google Patents
Double-component waterproof interior wall putty Download PDFInfo
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- CN111154306A CN111154306A CN202010052189.4A CN202010052189A CN111154306A CN 111154306 A CN111154306 A CN 111154306A CN 202010052189 A CN202010052189 A CN 202010052189A CN 111154306 A CN111154306 A CN 111154306A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
Abstract
The invention discloses a two-component waterproof interior wall putty, which belongs to the technical field of wall decoration materials, and comprises a powdery component A, wherein the component A comprises 20-40% of white portland cement, 8-20% of vitrified micro-beads, 0.25-0.53% of cellulose, 0.03-0.09% of starch ether and 0.2-0.4% of magnesium aluminum silicate by mass percent; the balance of heavy calcium carbonate; the emulsion-shaped component B comprises 40-60% of waterproof emulsion, 40-60% of water, 0.04-2% of preservative and 0.8-1.6% of film-forming assistant by mass percent; wherein the component A is as follows by mass ratio: the component B is (60-70) and (30-40). The double-component inner wall putty produced by the invention has the advantages of excellent impact resistance, excellent hydrophobicity and waterproofness, good crack resistance, stable storage and easy construction.
Description
Technical Field
The invention belongs to the technical field of wall decoration materials, and particularly relates to double-component waterproof interior wall putty.
Background
With the continuous progress of society, the technology is continuously developed. The country and people protect the environment, effectively utilize resources and pay attention to energy conservation and emission reduction. Meanwhile, as the living standard of people is continuously improved, the demand of environment-friendly and harmless decorative materials is continuously increased.
Interior wall putty is a decorative gel material used to level the surface of a wall, to fill the voids of the wall and to repair the high and low irregularities of the painted surface so that a flat and uniform paint film can be formed when the paint or finish is applied to the wall.
The putty prepared by the traditional formula at present has toxic gases such as formaldehyde and the like, is easy to crack, pulverize, have insufficient scraping thickness, grain, have no special functionality and the like, and simultaneously generates cracks along with a wall body due to the change of temperature and humidity. These problems further cause the defects of paint film on the coated wall surface and the like, and seriously affect the quality of the building interior wall.
Disclosure of Invention
The invention aims to solve the technical problems, and provides the two-component waterproof interior wall putty which is prepared by mixing the materials of the two components according to a certain proportion without adding extra water, so that the two-component waterproof interior wall putty has good crack resistance, toughness, weather resistance, waterproofness and corrosion resistance.
The purpose of the invention is realized as follows: a two-component water-proof putty for internal wall is composed of
The powdery component A comprises 20-40% of white Portland cement, 8-20% of vitrified micro-beads, 0.25-0.53% of cellulose, 0.03-0.09% of starch ether and 0.2-0.4% of magnesium aluminum silicate by mass percent; the balance of heavy calcium carbonate; the emulsion-shaped component B comprises 40-60% of waterproof emulsion, 40-60% of water, 0.04-2% of preservative and 0.8-1.6% of film-forming assistant by mass percent; wherein the component A is as follows by mass ratio: the component B is (60-70) and (30-40).
The invention is further configured to: the component A comprises the following components in percentage by mass: the component B is 65: 35.
By adopting the technical scheme, the white portland cement can effectively improve the strength of the putty; the vitrified micro bubbles have very stable physical and chemical properties, strong aging resistance and weather resistance, excellent heat insulation, fire prevention and other properties, are used as lightweight aggregates, play a role in cracking resistance and batch scraping thickness, and can improve the flowability and self-resistance strength of mortar; the heavy calcium carbonate is used as a filler of the putty, so that the thickness of a scraping layer can be increased, the cost can be reduced, and the processing performance (such as viscosity adjustment, rheological property, fluidization property and the like) can be improved, so that reinforcement or semi-reinforcement can be performed; the waterproof emulsion is used for enhancing the strength, toughness, weather resistance and waterproofness of the putty, and the preservative plays a role in corrosion prevention so as to avoid mildewing after being wetted.
The invention is further configured to: the cellulose is hydroxyethyl methyl cellulose or hydroxypropyl methyl cellulose; the cellulose is easy to absorb moisture and can be directly dissolved in water, so that the aqueous solution has good viscosity, stability, protective colloid property and film forming property, is not easy to rot and mildew, and is stable under alkaline and weak acidic conditions. The hydroxyethyl methyl cellulose has the characteristics of good thickening, suspending, dispersing, emulsifying, bonding, film forming, moisture protection, protective colloid supply and the like; the water retention property of the hydroxypropyl methyl cellulose ensures that the sizing agent does not crack because of drying too fast after being coated, and the strength after hardening is enhanced.
The starch ether is methyl starch ether. The methyl starch ether has: 1. good rapid thickening capacity, medium viscosity and higher water retention; 2. the dosage is small, and very high effect can be achieved by very low addition amount; 3. the anti-sagging capability of the material is improved; 4. has good lubricity, and can improve the operation performance of the material and make the operation smoother.
The invention is further configured to: the heavy calcium carbonate is 300-mesh superfine heavy calcium carbonate. The superfine heavy calcium carbonate has uniform grain diameter, stable color and excellent dispersity and can be used as a filling raw material.
The invention is further configured to: the waterproof emulsion is a mixture of styrene-acrylic emulsion and pure acrylic emulsion or one of the styrene-acrylic emulsion and the pure acrylic emulsion. The styrene-acrylic emulsion (styrene-acrylic ester emulsion) is prepared by copolymerizing styrene and acrylic ester monomers through emulsion, has good adhesive force, transparent adhesive film and good water resistance, oil resistance, heat resistance and aging resistance; the pure acrylic emulsion is transparent or milky white viscous liquid with light yellow color, is prepared by adopting acrylic ester as a raw material, and has very excellent weather resistance, especially aging resistance and color and gloss retention.
The invention is further configured to: the preservative adopts isothiazolinone bactericidal preservative, and isothiazolinone is a novel high-efficiency broad-spectrum bactericide and has the advantages of high efficiency, low toxicity, long duration of drug effect, safety to environment and the like.
The invention is further configured to: the component B also comprises 0.4 to 0.8 percent of defoaming agent, and the defoaming agent is a water-based defoaming agent. The water-based defoaming agent is prepared from dimethyl silicone oil, white carbon black, an emulsifying agent and the like, and has the characteristics of high dispersing speed, high defoaming speed, long foam inhibition time, stability and no layering.
A preparation method of the waterproof interior wall putty, which comprises the following steps,
1) preparation of component A: weighing the raw material components of the component A according to the proportion, sequentially adding the raw material components into a mixer, and fully stirring to obtain a powdery component A;
2) preparation of component B: mixing the waterproof emulsion and water in a stirring barrel according to a proportion, then starting a stirrer to stir the mixed solution in the stirring barrel, sequentially and slowly pouring the film-forming additive, the preservative and the defoaming agent in the stirring process, then continuously stirring, and fully stirring to obtain an emulsion-shaped component B;
3) mixing: when in construction use, the component A prepared in the step 1) and the component B prepared in the step 2) are fully mixed according to a certain proportion, and the pasty interior wall putty can be formed.
The invention is further configured to: in the step 1), the component A needs to be sieved for vitrified micro bubbles during mixing, wherein the sieve is a sieve with 80-100 meshes; after all the components of the component B in the step 2) are mixed, the rotating speed of a stirrer needs to be more than 1000r/min during stirring, the stirring time is 5-10min, and the stirring temperature is set to be 0-5 ℃ for improving the film forming efficiency of the emulsion.
The invention has the beneficial effects that: the double-component interior wall putty produced by the invention has excellent impact resistance, excellent hydrophobicity and waterproofness, good crack resistance, stable storage and easy construction: wherein, the heavy calcium carbonate is used as the filler of the putty, so that the thickness of the scraping layer can be improved, and the cost can be reduced; isothiazolinone is used as the sterilization preservative, so that the putty has the advantages of high efficiency, low toxicity, long duration of drug effect, safety to the environment and the like; the pure acrylic emulsion is adopted as a waterproof agent, the processing performance is improved, so that the putty has waterproofness, can bear certain water osmotic pressure, and improves the waterproof grade of the inner wall.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following clearly and completely describes the technical solution in the embodiment of the present invention:
a two-component water-proof putty for internal wall is composed of
The powdery component A comprises 20-40% of white Portland cement, 8-20% of vitrified micro-beads, 0.25-0.53% of cellulose, 0.03-0.09% of starch ether and 0.2-0.4% of magnesium aluminum silicate by mass percent; the balance of heavy calcium carbonate; the emulsion-shaped component B comprises 40-60% of waterproof emulsion, 40-60% of water, 0.04-2% of preservative and 0.8-1.6% of film-forming assistant by mass percent; wherein the component A is as follows by mass ratio: the component B is (60-70) and (30-40).
Optimized, the component A is calculated according to the mass ratio: the component B is 65: 35.
The white portland cement can effectively improve the strength of the putty; the vitrified micro bubbles have very stable physical and chemical properties, strong aging resistance and weather resistance, excellent heat insulation, fire prevention and other properties, are used as lightweight aggregates, play a role in cracking resistance and batch scraping thickness, and can improve the flowability and self-resistance strength of mortar; the heavy calcium carbonate is used as a filler of the putty, so that the thickness of a scraping layer can be increased, the cost can be reduced, and the processing performance (such as viscosity adjustment, rheological property, fluidization property and the like) can be improved, so that reinforcement or semi-reinforcement can be performed; the waterproof emulsion is used for enhancing the strength, toughness, weather resistance and waterproofness of the putty, and the preservative plays a role in corrosion prevention so as to avoid mildewing after being wetted.
Preferably, the cellulose is hydroxyethyl methyl cellulose or hydroxypropyl methyl cellulose; the cellulose is easy to absorb moisture and can be directly dissolved in water, so that the aqueous solution has good viscosity, stability, protective colloid property and film forming property, is not easy to rot and mildew, and is stable under alkaline and weak acidic conditions. The hydroxyethyl methyl cellulose has the characteristics of good thickening, suspending, dispersing, emulsifying, bonding, film forming, moisture protection, protective colloid supply and the like; the water retention property of the hydroxypropyl methyl cellulose ensures that the sizing agent does not crack because of drying too fast after being coated, and the strength after hardening is enhanced.
Preferably, the starch ether is methyl starch ether. Methyl starch ether starch ethers have: 1. good rapid thickening capacity, medium viscosity and higher water retention; 2. the dosage is small, and very high effect can be achieved by very low addition amount; 3. the anti-sagging capability of the material is improved; 4. has good lubricity, and can improve the operation performance of the material and make the operation smoother.
Preferably, the ground calcium carbonate is superfine ground calcium carbonate. The superfine heavy calcium carbonate has uniform grain diameter, stable color and excellent dispersity and can be used as a filling raw material.
Preferably, the waterproof emulsion is a mixture of styrene-acrylic emulsion and pure acrylic emulsion or one of the styrene-acrylic emulsion and the pure acrylic emulsion. The styrene-acrylic emulsion (styrene-acrylic ester emulsion) is prepared by copolymerizing styrene and acrylic ester monomers through emulsion, has good adhesive force, transparent adhesive film and good water resistance, oil resistance, heat resistance and aging resistance; the pure acrylic emulsion is transparent or milky white viscous liquid with light yellow color, is prepared by adopting acrylic ester as a raw material, and has very excellent weather resistance, especially aging resistance and color and gloss retention.
Preferably, the antiseptic adopts isothiazolinone antiseptic, isothiazolinone is a new high-efficiency broad-spectrum antiseptic, namely, the antiseptic has the advantages of high efficiency, low toxicity, long duration of drug effect, safety to environment and the like.
Preferably, the component B also comprises 0.4-0.8% of a defoaming agent, and the defoaming agent is a water-based defoaming agent. The water-based defoaming agent is prepared from dimethyl silicone oil, white carbon black, an emulsifying agent and the like, and has the characteristics of high dispersing speed, high defoaming speed, long foam inhibition time, stability and no layering.
Example 1: a waterproof interior wall putty and a preparation method thereof comprise the following steps,
1) preparation of component A: sequentially adding 20% of white portland cement, 80-100 meshes of 8% of vitrified micro bubbles, 0.25% of hydroxypropyl methyl cellulose, 0.04% of methyl starch ether, 0.2% of magnesium aluminum silicate and the balance of superfine heavy calcium carbonate into a mixer according to the mass ratio, and stirring fully to obtain a powdery component A; wherein, in order to improve the crack resistance of the putty after batch scraping, the grain diameter of the filler can not be too coarse or too fine, tests show that the crack resistance of the batch scraping putty layer is strongest when the proportion of the filler and the vitrified micro bubbles is 3:1-4:1, and the ultrafine heavy calcium carbonate with the grain diameter of 300 meshes is adopted.
2) Preparation of component B: mixing 40% of pure acrylic emulsion and 58.4% of water in a stirring barrel according to the mass ratio, then starting a stirrer to stir the mixed liquid in the stirring barrel, and sequentially and slowly pouring 0.1% of thiazolinone bactericidal preservative, 1% of film forming additive and 0.5% of defoaming agent in the stirring process; wherein the rotating speed of the stirrer is required to be more than 1000r/min, the stirring time is 5-10min, and the stirring temperature is 0-5 ℃;
3) mixing: when in construction and use, the component A prepared in the step 1) and the component B prepared in the step 2) are fully mixed according to the mass ratio of 65:35, and the pasty interior wall putty can be formed.
Example 2: a waterproof interior wall putty and a preparation method thereof comprise the following steps,
1) preparation of component A: adding 28% of white portland cement, 80-100 meshes of 13% of vitrified micro bubbles, 0.38% of hydroxypropyl methyl cellulose, 0.06% of methyl starch ether, 0.3% of magnesium aluminum silicate and the balance of 300 meshes of superfine heavy calcium carbonate into a mixer in sequence according to the mass ratio, and stirring fully to obtain a powdery component A;
2) preparation of component B: mixing 48% of pure acrylic emulsion and 49.2% of water in a stirring barrel according to the mass ratio, then starting a stirrer to stir the mixed liquid in the stirring barrel, and sequentially and slowly pouring 1% of thiazolinone bactericidal preservative, 1.2% of film forming additive and 0.6% of defoaming agent in the stirring process; wherein the rotating speed of the stirrer is required to be more than 1000r/min, the stirring time is 5-10min, and the stirring temperature is 0-5 ℃;
3) mixing: when in construction and use, the component A prepared in the step 1) and the component B prepared in the step 2) are fully mixed according to the mass ratio of 65:35, and the pasty interior wall putty can be formed.
Example 3: a waterproof interior wall putty and a preparation method thereof comprise the following steps,
1) preparation of component A: adding 35% of white portland cement, 17% of vitrified micro bubbles passing through 80-100 meshes, 0.45% of hydroxypropyl methyl cellulose, 0.75% of methyl starch ether, 0.35% of magnesium aluminum silicate and the balance of 300-mesh superfine heavy calcium carbonate into a mixer in sequence according to the mass ratio, and stirring fully to obtain a powdery component A;
2) preparation of component B: mixing 55% of pure acrylic emulsion and 41.4% of water in a stirring barrel according to the mass ratio, then starting a stirrer to stir the mixed liquid in the stirring barrel, and sequentially and slowly pouring 1.5% of thiazolinone bactericidal preservative, 1.4% of film forming additive and 0.7% of defoaming agent in the stirring process; wherein the rotating speed of the stirrer is required to be more than 1000r/min, the stirring time is 5-10min, and the stirring temperature is 0-5 ℃;
3) mixing: when in construction and use, the component A prepared in the step 1) and the component B prepared in the step 2) are fully mixed according to the mass ratio of 65:35, and the pasty interior wall putty can be formed.
Example 4: a waterproof interior wall putty and a preparation method thereof comprise the following steps,
1) preparation of component A: adding 40% of white Portland cement, 80-100 meshes of 20% of vitrified micro bubbles, 0.53% of hydroxypropyl methyl cellulose, 0.09% of methyl starch ether, 0.4% of magnesium aluminum silicate and the balance of 300 meshes of superfine heavy calcium carbonate into a mixer in sequence according to the mass ratio, and stirring fully to obtain a powdery component A;
2) preparation of component B: mixing 60% of pure acrylic emulsion and 35.6% of water in a stirring barrel according to the mass ratio, then starting a stirrer to stir the mixed liquid in the stirring barrel, and sequentially and slowly pouring 2% of thiazolinone bactericidal preservative, 1.6% of film forming additive and 0.8% of defoaming agent in the stirring process; wherein the rotating speed of the stirrer is required to be more than 1000r/min, the stirring time is 5-10min, and the stirring temperature is 0-5 ℃;
3) mixing: when in construction and use, the component A prepared in the step 1) and the component B prepared in the step 2) are fully mixed according to the mass ratio of 65:35, and the pasty interior wall putty can be formed.
Examples 1-4 and comparative products (commercially available interior wall putty) were each batch-painted on different wall surfaces and tested 72 hours after immersion, and the results were as follows:
| detecting items | Flexibility | Water resistance | Bonding Strength (Mpa) | Mildew spot |
| Example 1 | Does not crack | No bubbling and no powder falling | 1.35 | No obvious mildew |
| Example 2 | Does not crack | No bubbling and no powder falling | 1.78 | No obvious mildew |
| Example 3 | Does not crack | No bubbling and no powder falling | 1.86 | No obvious mildew |
| Example 4 | Does not crack | No bubbling and no powder falling | 1.62 | No obvious mildew |
| Comparison product | Slight cracking | Some parts of the powder have hollowness and some powder fall | 0.63 | Fine black spots appear at partial positions |
The detection results show that the bi-component interior wall putty has good flexibility and water resistance, has high bonding strength, is not easy to mildew in a humid environment, and has wide application prospect.
The above-mentioned embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained by those skilled in the art based on the above-mentioned embodiments should also belong to the protection scope of the present invention without any creative effort, so that: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A two-component water-proof putty for internal wall is composed of
The powdery component A comprises 20-40% of white Portland cement, 8-20% of vitrified micro-beads, 0.25-0.53% of cellulose, 0.03-0.09% of starch ether and 0.2-0.4% of magnesium aluminum silicate by mass percent; the balance of heavy calcium carbonate;
the emulsion-shaped component B comprises 40-60% of waterproof emulsion, 40-60% of water, 0.04-2% of preservative and 0.8-1.6% of film-forming assistant by mass percent;
wherein the component A is as follows by mass ratio: the component B is (60-70) and (30-40).
2. The two-component waterproof putty according to claim 1, which is characterized in that: the component A comprises the following components in percentage by mass: the component B is 65: 35.
3. The two-component waterproof putty according to claim 2, which is characterized in that: the cellulose is hydroxyethyl methyl cellulose or hydroxypropyl methyl cellulose.
4. The two-component waterproof putty according to claim 2, which is characterized in that: the starch ether is methyl starch ether.
5. The two-component waterproof putty according to claim 2, which is characterized in that: the heavy calcium carbonate is 300-mesh superfine heavy calcium carbonate.
6. The two-component waterproof putty according to claim 2, which is characterized in that: the waterproof emulsion is a mixture of styrene-acrylic emulsion and pure acrylic emulsion or one of the styrene-acrylic emulsion and the pure acrylic emulsion.
7. The two-component waterproof putty according to claim 2, which is characterized in that: the antiseptic is thiazolinone antiseptic.
8. The two-component waterproof putty according to claim 2, which is characterized in that: the component B also comprises 0.4 to 0.8 percent of defoaming agent, and the defoaming agent is a water-based defoaming agent.
9. A method for preparing the waterproof interior wall putty as set forth in any one of claims 1 to 8, characterized in that: comprises the following steps of (a) carrying out,
1) preparation of component A: weighing the raw material components of the component A according to the proportion, sequentially adding the raw material components into a mixer, and fully stirring to obtain a powdery component A;
2) preparation of component B: mixing the waterproof emulsion and water in a stirring barrel according to a proportion, then starting a stirrer to stir the mixed solution in the stirring barrel, sequentially and slowly pouring the film-forming additive, the preservative and the defoaming agent in the stirring process, then continuously stirring, and fully stirring to obtain an emulsion-shaped component B;
3) mixing: when in construction use, the component A prepared in the step 1) and the component B prepared in the step 2) are fully mixed according to a certain proportion, and the pasty interior wall putty can be formed.
10. The method for preparing a waterproof interior wall putty as claimed in claim 9, wherein the method comprises the following steps: in the step 1), the component A needs to be sieved for vitrified micro bubbles during mixing, wherein the sieve is a sieve with 80-100 meshes; after all the components of the component B in the step 2) are mixed, the rotating speed of a stirrer needs to be more than 1000r/min during stirring, the stirring time is 5-10min, and the stirring temperature is 0-5 ℃.
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| CN113667334A (en) * | 2021-08-26 | 2021-11-19 | 安徽天锦云节能防水科技有限公司 | Heat-preservation sound-insulation coating for cast-in-place concrete floor top |
| CN115074178A (en) * | 2022-07-19 | 2022-09-20 | 卢卫东 | Atomic ash lubricant |
| WO2023168809A1 (en) * | 2022-03-11 | 2023-09-14 | 上海保立佳新材料有限公司 | Anti-cracking and anti-aging waterproof decorative integrated coating and preparation method therefor |
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