CN111349356A - Interior wall putty with mildew-proof function and preparation method thereof - Google Patents
Interior wall putty with mildew-proof function and preparation method thereof Download PDFInfo
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- CN111349356A CN111349356A CN202010369750.1A CN202010369750A CN111349356A CN 111349356 A CN111349356 A CN 111349356A CN 202010369750 A CN202010369750 A CN 202010369750A CN 111349356 A CN111349356 A CN 111349356A
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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
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Abstract
The invention discloses an interior wall putty with a mildew-proof function and a preparation method thereof, wherein the interior wall putty with the mildew-proof function comprises the following inorganic cementing materials in parts by weight: 2-8 parts of organic additive: 0.2-2 parts, cellulose ether: 0.1-1 part of heavy calcium powder: 80-97 parts of water repellent: 0.1-0.5 part of mildew preventive: 1-5 parts of a film-forming additive: 0.5-1 part; the waterproof EVA rubber powder and the film forming assistant act together to form a continuous compact film between the gaps of the coarse whiting powder particles, so that the invasion of external water vapor is blocked, and the problems of mildew prevention, long-acting property and environmental protection of the interior wall putty are solved.
Description
Technical Field
The scheme belongs to the field of chemical materials, and particularly relates to the field of application of architectural chemical materials.
Background
The putty is a layer of material which is indispensable to the indoor decoration of the current building and plays a role in fine leveling, and the market can be generally divided into putty which is prepared by adding white powder and aged glue powder on site and is stirred by adding water and finished putty which is stirred by only adding water. The putty prepared on site mainly depends on the experience and preference of a constructor, and has unstable quality and extremely poor strength, water resistance and mildew resistance. Currently, putty mildew is a common disease which cannot be ignored in interior wall decoration. The mildew is an important factor for damaging the wall, and the putty mildew not only seriously affects the beauty of the wall surface, but also can breed a large number of pathogenic bacteria and even affect the service life of the wall body of a house. Indoor mold growth is mainly related to factors such as temperature, humidity, acidity and alkalinity, nutrient materials, colony types and initial quantity.
The present putty mould-proof technology can be roughly divided into four types, the first type is to realize mould-proof by adding an additive with mould-proof function, the main component of the mould-proof agent is a natural mould-proof agent represented by chitosan, the invention authorizes a patent, mould-proof putty powder and a preparation method thereof, 201610259899.8; an environment-friendly mildew-proof putty powder and a preparation method thereof, 201810944918. X. But the natural mildew preventive does not pollute the environment in the production and use processes and has good biocompatibility. But the natural mildew preventive has poor heat resistance, starts to be carbonized and decomposed at 160-180 ℃, and has short duration of drug effect.
The second is to use other bactericidal substances to cooperate with mildew preventive as a technical means for realizing mildew prevention. For example, 84 disinfectant powder is added with a mildew preventive, and 84 disinfectant is a high-efficiency disinfectant mainly comprising sodium hypochlorite (NaClO). The disinfectant has certain health hazard, and workers who often contact the disinfectant with hands can sweat a lot of palms, thin nails, and fall off hairs, so that the disinfectant has sensitization effect. The free chlorine released from the sodium hypochlorite solution may cause poisoning. The third is that silver ion is used as a technical means for realizing mildew resistance. However, silver ions are easily dissolved in liquid, and considering that the putty powder needs to be polished in the construction process, the putty powder is inevitably absorbed into human bodies to a greater or lesser extent, and heavy metal poisoning is caused. The fourth one is that zinc and its oxide are used as the technical means for realizing mildew resistance, but the stability is not good, and it is easy to be affected with damp and deteriorated. The fifth one is to realize mildew prevention by physical means such as adsorption, and the patent of the putty powder for resisting bacteria and mildew is 201510457931.9, and the mildew resistance is improved by adding modified zeolite. But actually, according to the mold production mechanism, the more humid environment is, the more easily mold grows, the porous structure of zeolite can just adsorb water molecules in the air, and the mold prevention principle is unscientific.
Disclosure of Invention
The invention provides interior wall putty with a mildew-proof function and a preparation method thereof, which solve the problems of long-acting mildew-proof property and environmental protection property of interior wall putty.
The invention provides interior wall putty with a mildew-proof function, which comprises the following inorganic cementing materials in parts by weight: 2-8 parts of organic additive: 0.2-2 parts, cellulose ether: 0.1-1 part of heavy calcium powder: 80-97 parts of water repellent: 0.1-0.5 part of mildew preventive: 1-5 parts of a film-forming additive: 0.5-1 part; the organic additive and the film forming additive act together to form a continuous compact film between the gaps of the heavy calcium powder particles and prevent the invasion of external water vapor.
As an embodiment, the interior wall putty with the mildew-proof function comprises the following inorganic gelled materials in parts by weight: 3-7 parts of organic additive: 0.3-1.8 parts of cellulose ether: 0.2-1 part of heavy calcium powder: 83-95 parts of water repellent: 0.2-0.4 part of mildew preventive: 2-4 parts of a film-forming assistant: 0.6-1 part.
Further, the heavy calcium powder is prepared by grading according to the particle size, wherein the heavy calcium powder is prepared according to a 200-mesh sieve: 400 meshes: the proportion of 800 meshes is 5:2:1, or 5:1:0, or 5:0:1, or 0:3: 2.
Further, the inorganic cementitious material is white cement, or hydrated lime, or a mixture of white cement and hydrated lime.
Further, the water repellent is one or a combination of magnesium stearate substances, sodium stearate substances and organic silicon water repellent. The film-forming aid is an alcohol ether substance, such as alcohol ether twelve, and has the effect of improving the film-forming property of the emulsion.
Further, the mildew preventive is one or more of barium metaborate, titanium dioxide and nano zinc oxide. The organic additive is one or a plurality of compositions of EVA rubber powder, water-resistant rubber powder, redispersible latex powder and polyvinyl alcohol.
Further, the interior wall putty with the mildew-proof function further comprises a defoaming agent: 0.2-1 part, and reducing air bubbles in the inner wall putty mixture.
The invention also provides a preparation method of the interior wall putty with the mildew-proof function, which comprises the steps of (1) accurately weighing the inorganic cementing material, the organic additive, the cellulose ether, the water repellent, the mildew preventive, the defoaming agent and the film-forming auxiliary agent according to the mixing proportion, and premixing the raw materials together to obtain premixed small materials for later use; (2) accurately weighing the triple superphosphate powder with required meshes according to the formula requirement, adding the premixed small materials, and stirring for 10-30 minutes until the materials are uniformly mixed to obtain the interior wall putty with the mildew-proof function.
Further, the coarse whiting powder in the step (2) is prepared according to particle size grading, wherein the coarse whiting powder is prepared according to a 200-mesh sieve: 400 meshes: the proportion of 800 meshes is 5:2:1, or 5:1:0, or 5:0:1, or 0:3: 2.
The invention controls the factors of humidity, acidity and alkalinity, initial number of bacterial colonies and the like by designing an environment-friendly component formula, and the coarse whiting powder is prepared by mixing the following components in 200 meshes: 400 meshes: the proportion of 800 meshes is scientifically matched, particle size gaps are reduced, a compact water-resistant layer is formed by the particles and the film-forming assistant, and finally the interior wall putty with the mildew-proof function is formed, so that the effective mildew-proof performance can be maintained for many years.
The technical principle and the advantages of the mildew prevention of the scheme of the invention are as follows:
1. introducing a water repellent. The introduction of the water repellent can effectively prevent water vapor from entering the interior of the putty layer, so that the interior of the putty is kept dry, and a high-humidity environment with no mould growth exists in the putty layer.
2. Grading design of heavy calcium powder. The grading design of heavy calcium powder is designed through a large amount of experiments and theories in this patent, and this kind of design can let the material internal porosity at least, and the at utmost reduces the steam invasion to furthest's keeping internal environment dry.
3. And adding a film aid by using an organic additive. Such as EVA rubber powder addition film forming additive and polyvinyl alcohol addition film forming additive, the film forming additive is an alcohol ether substance, such as alcohol ether dodeca, and has the function of improving the film forming property of the emulsion, and the EVA rubber powder is in the solid form of the emulsion. The composition helps the EVA rubber powder with water resistance to form continuous films in the gaps of the heavy calcium powder particles, and the continuous films can block the invasion of water vapor, so that the drying of the internal environment is ensured, and the EVA rubber powder has high bonding strength and good wear resistance. The inventor finds that other existing rubber powder and film-forming additives can not form a stable film layer through hundreds of tests and are easy to disperse into powder after a long time.
4. And (4) introducing a mildew preventive. The main auxiliary function of the mildew inhibitor in the system is to further inhibit the mildew which is present in a small amount.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the attached tables in the embodiments.
The invention provides a preparation method of interior wall putty with a mildew-proof function, which comprises the following steps
(1) Accurately weighing inorganic cementing materials, organic additives, cellulose ether, water repellent, mildew preventive, defoamer and film-forming additive raw materials according to the mixing proportion, and premixing the raw materials together to obtain premixed small materials for later use. Can be prepared by conventional stirring equipment factories or directly mixed by a barrel and a stick on a construction site.
(2) Accurately weighing the triple superphosphate powder with required meshes according to the formula requirement, adding the premixed small materials, and stirring for 10-30 minutes until the materials are uniformly mixed to obtain the interior wall putty with the mildew-proof function.
The invention also provides the interior wall putty with the mildew-proof function, which comprises the following inorganic gelled materials in parts by weight: 2-8 parts of organic additive: 0.2-2 parts, cellulose ether: 0.1-1 part of heavy calcium powder: 80-97 parts of water repellent: 0.1-0.5 part of mildew preventive: 1-5 parts of a film-forming additive: 0.5-1 part; the organic additive and the film forming additive act together to form a continuous compact film between the gaps of the heavy calcium powder particles and prevent the invasion of external water vapor.
As an improvement mode, the interior wall putty with the mildew-proof function comprises the following inorganic gelled materials in parts by weight: 3-7 parts of organic additive: 0.3-1.8 parts of cellulose ether: 0.2-1 part of heavy calcium powder: 83-95 parts of water repellent: 0.2-0.4 part of mildew preventive: 2-4 parts of a film-forming assistant: 0.6-1 part, defoaming agent: 0.3 to 0.8 portion.
The heavy calcium powder is prepared by grading according to the particle size, wherein the heavy calcium powder is prepared by mixing the following components in a 200-mesh ratio: 400 meshes: the proportion of 800 meshes is 5:2:1, or 5:1:0, or 5:0:1, or 0:3: 2. The inorganic cementing material is white cement, or hydrated lime, or a mixture of the white cement and the hydrated lime, and the content of calcium hydroxide in the hydrated lime is not less than 98%. The water repellent is one or more of magnesium stearate, sodium stearate and organosilicon water repellent, and specifically can be magnesium stearate and sodium stearate. The mildew preventive is one or a combination of barium metaborate, titanium dioxide and nano zinc oxide. The organic additive is one or a plurality of compositions of EVA rubber powder, water-resistant rubber powder, redispersible latex powder and polyvinyl alcohol.
Example 1 of the interior wall putty of the present invention:
embodiment 2 of the interior wall putty of the invention:
| component name | Material | Weight ratio kg/t |
| Inorganic cementing material | Hydrated lime | 8 |
| Organic additives | Redispersible latex powder | 1 |
| Cellulose ethers | HPMC viscosity 8 million | 0.5 |
| Heavy calcium powder | 200 meshes, 400 meshes, 800 meshes or 5:1 | 82.9 |
| Water repellent | Magnesium stearates | 0.5 |
| Mildew preventive | 5 | |
| Starch ethers | 1 | |
| Defoaming agent | 0.6 | |
| Film forming aid | 0.5 |
Embodiment 3 of the interior wall putty of the present invention:
embodiment 4 of the interior wall putty of the present invention:
| component name | Material | Weight ratio kg/t |
| Inorganic cementing material | 52.5 white cement: slaked lime 2:1 | 3 |
| Organic additives | Redispersible latex powder | 0.2 |
| Cellulose ethers | HPMC viscosity 6 ten thousand | 0.8 |
| Heavy calcium powder | 200 meshes, 400 meshes, 800 meshes or 5:0:1 | 89.9 |
| Water repellent | Sodium stearate | 0.5 |
| Mildew preventive | 4 | |
| Starch ethers | 0.5 | |
| Defoaming agent | 0.5 | |
| Film forming aid | 0.6 |
Embodiment 5 of the interior wall putty of the present invention:
multiple tests prove that the interior wall putty adopts an environment-friendly component formula, has high bonding strength, and contains the following components in parts by weight: 400 meshes: the proportion of 800 meshes is scientifically matched, particle size gaps are reduced, a compact water-resistant layer is formed by the water-resistant layer and the film-forming auxiliary agent, and finally the interior wall putty with the mildew-proof function is formed, wherein the mildew-proof grade of 0 is the highest grade, the effective mildew-proof performance can be maintained for many years, and the water-resistant putty has unexpected excellent effects.
The test results are given in the following table:
the use method of the interior wall putty with the mildew-proof function comprises the following steps: the base layer is treated, and the treatment such as ash removal, interface agent brushing, water spraying and the like is carried out according to the base layer condition. Then adding water into the putty according to the proportion of adding 36-38kg of water into every 100kg of the putty, stirring for 5min, and standing for 5min for later use after stirring. And then uniformly coating the stirred putty paste on a base layer by using a batch knife, wherein the thickness of each time is generally less than 1 mm. Construction can be carried out for 2-3 times according to the wall surface condition. Before the next construction, the last putty layer needs to be dried completely.
Claims (9)
1. The interior wall putty with the mildew-proof function is characterized by comprising the following inorganic cementing materials in parts by weight: 2-8 parts of organic additive: 0.2-2 parts, cellulose ether: 0.1-1 part of heavy calcium powder: 80-97 parts of water repellent: 0.1-0.5 part of mildew preventive: 1-5 parts of a film-forming additive: 0.5-1 part; the organic additive and the film forming additive act together to form a continuous compact film between the gaps of the heavy calcium powder particles and prevent the invasion of external water vapor.
2. The interior wall putty with the mildew-proof function as claimed in claim 1, which is characterized by comprising the following inorganic gelled materials in parts by weight: 3-7 parts of organic additive: 0.3-1.8 parts of cellulose ether: 0.2-1 part of heavy calcium powder: 83-95 parts of water repellent: 0.2-0.4 part of mildew preventive: 2-4 parts of a film-forming assistant: 0.6-1 part.
3. The interior wall putty with a mildew-proof function as claimed in claim 1, which is characterized in that: the heavy calcium powder is prepared by grading according to the particle size, wherein the heavy calcium powder is prepared by mixing the following components in a 200-mesh ratio: 400 meshes: the proportion of 800 meshes is 5:2:1, or 5:1:0, or 5:0:1, or 0:3: 2.
4. The interior wall putty with a mildew-proof function as claimed in claim 1, which is characterized in that: the inorganic gelling material is white cement, or hydrated lime, or a mixture of white cement and hydrated lime.
5. The interior wall putty with a mildew-proof function as claimed in claim 1, which is characterized in that: the water repellent is one or a combination of magnesium stearate substances, sodium stearate substances and organic silicon water repellent.
6. The interior wall putty with a mildew-proof function as claimed in claim 1, which is characterized in that: the mildew preventive is one or more of barium metaborate, titanium dioxide and nano zinc oxide; the organic additive is one or a plurality of compositions of EVA rubber powder, water-resistant rubber powder, redispersible latex powder and polyvinyl alcohol.
7. The interior wall putty with a mold-proof function as set forth in any one of claims 1 to 6, characterized in that: also comprises a defoaming agent: 0.2-1 part, and reducing air bubbles in the inner wall putty mixture.
8. The method for preparing the interior wall putty with the mildew-proof function as claimed in claim 7, which is characterized in that: comprises the steps of
(1) Accurately weighing the inorganic cementing material, the organic additive, the cellulose ether, the water repellent, the mildew preventive, the defoaming agent and the film forming additive according to the mixing proportion, and premixing the raw materials together to obtain premixed small materials for later use;
(2) accurately weighing the triple superphosphate powder with required meshes according to the formula requirement, adding the premixed small materials, and stirring for 10-30 minutes until the materials are uniformly mixed to obtain the interior wall putty with the mildew-proof function.
9. The method for preparing the interior wall putty with the mildew-proof function as claimed in claim 8, which is characterized in that: the heavy calcium powder in the step (2) is prepared according to particle size grading, wherein the heavy calcium powder is prepared according to a 200-mesh ratio: 400 meshes: the proportion of 800 meshes is 5:2:1, or 5:1:0, or 5:0:1, or 0:3: 2.
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Cited By (5)
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| CN113604092A (en) * | 2021-09-23 | 2021-11-05 | 福建省三棵树新材料有限公司 | Mildew-proof water-resistant putty matched with inorganic coating and preparation method thereof |
| CN113897089A (en) * | 2021-09-15 | 2022-01-07 | 福建省三棵树新材料有限公司 | Putty for aluminum mold forming concrete base surface and preparation method thereof |
| CN114213893A (en) * | 2021-12-31 | 2022-03-22 | 河南三棵树新材料科技有限公司 | Interior wall putty powder with water-resistant and mildew-proof functions and preparation method thereof |
| CN114437572A (en) * | 2020-11-03 | 2022-05-06 | 湖南梨树园涂料有限公司 | Antibacterial artistic coating |
| CN115975427A (en) * | 2021-10-14 | 2023-04-18 | 江西富兴节能建材有限公司 | Inorganic mildew-proof mineral putty |
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Effective date of registration: 20211116 Address after: 201400 Building 1, No. 377, Liantang West Road, Xinghuo Development Zone, Fengxian District, Shanghai Patentee after: Sikadegao (Shanghai) building materials Co., Ltd Address before: 200436 No. 252, JIANGCHANG Third Road, Zhabei District, Jing'an District, Shanghai Patentee before: Sika (Shanghai) Management Co., Ltd |
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