CN112143306A - Covering base film and preparation method thereof - Google Patents
Covering base film and preparation method thereof Download PDFInfo
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- CN112143306A CN112143306A CN202010983378.3A CN202010983378A CN112143306A CN 112143306 A CN112143306 A CN 112143306A CN 202010983378 A CN202010983378 A CN 202010983378A CN 112143306 A CN112143306 A CN 112143306A
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- composition
- titanium dioxide
- base film
- dispersion liquid
- alumina sol
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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
- C09D131/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
-
- 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
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- 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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a composition of a covering basement membrane, which comprises the following components in parts by mass: 80-120 parts of nano alumina sol; 40-60 parts of titanium dioxide; doping silver ions with nano zinc oxide; 4-6 parts; 30-40 parts of a film forming substance; water and an acid. The invention also discloses a preparation method of the covering basement membrane. The invention takes the nano alumina sol as the titanium dioxide dispersion liquid, obtains stable gel state dispersion liquid by adding acid, takes the nano alumina sol as the titanium dioxide dispersion liquid, obtains stable gel state dispersion liquid by adding citric acid, and has high covering power of finished products, no sedimentation after long-term storage and excellent mildew resistance.
Description
Technical Field
The invention belongs to the home decoration industry, and relates to surface treatment of an old wall body during wallpaper wall cloth replacement, in particular to a covering base film and a preparation method thereof.
Background
When base films such as wallpaper wallcoverings and the like are replaced, the surfaces of walls often go moldy and are pulverized, surface treatment is needed again, and the existing base films are transparent after film forming and cannot meet the requirements. The currently commonly adopted means are: the moldy part is removed, and the moldy part is plastered, polished, painted and coated with a base film, so that the construction period is long and the cost is high; generally, the latex paint is directly coated or pigments such as titanium dioxide and the like are added into the latex paint to play a role in covering, and the defects of the method are as follows:
1. the common latex paint has insufficient covering power and needs to be brushed for many times.
2. In the emulsion paint, when the content of the titanium dioxide is greatly increased, the dispersion is difficult and the sedimentation is easy.
3. The mildew resistance is poor, and the mildew continues to grow after the application.
Disclosure of Invention
The present invention aims to provide a coverable base film which has been tested to solve the above problems well. The specific operation is as follows: the covering base film is sprayed on the surface of the wall body, so that the mildewed part can be covered, the base film does not need to be additionally coated, and the covered mildew cannot continue to grow.
The invention aims to provide a composition of a covering basement membrane, which comprises the following components in parts by mass:
further, the solid content of the nano alumina sol is 12-25 wt%.
Further, the silver ions account for 50-100ppm of the silver ion doped nano zinc oxide.
Furthermore, the solid content of the silver ion doped nano zinc oxide is 40-60 wt%
Further, the film forming material is selected from one of polyacrylic acid emulsion, VAE emulsion and polyvinyl alcohol.
Further, the titanium dioxide is anatase titanium dioxide.
Further, the size of the nano alumina sol is 10-50 nm.
Another object of the present invention is to provide a method for preparing the composition for a coverable base film, comprising the steps of:
s1, mixing nano alumina sol with water, adding titanium dioxide, and stirring to obtain a dispersion liquid;
s2, adjusting the pH value of the dispersion liquid to 2-3;
gelling the nano alumina sol through S2 to obtain stable titanium dioxide dispersion liquid, wherein the dispersion liquid has good stability and thixotropy;
and S3, adding the silver ion doped nano zinc oxide and the film forming substance into the dispersion liquid in the S2, and stirring to obtain a finished product.
Further, in the S1, before adding the titanium dioxide, the stirring speed is 200-300 rpm; after the addition of titanium dioxide, the stirring speed was 800-.
Further, in the S2, the stirring speed is 100-200 rpm.
The invention has the beneficial effects that: the stable gel state dispersion liquid is obtained by adding acid by taking the nano alumina sol as the titanium dioxide dispersion liquid, and the finished product has high covering power, no sedimentation after long-term storage and excellent mildew resistance.
Detailed Description
The invention will now be described in detail with reference to specific examples, which are intended to illustrate the invention but not to limit it further.
In the embodiment of the invention, the nano alumina sol is self-made, and the specific preparation method comprises the following steps: adopting a sol-gel method to carry out peptization at 25 ℃ for 24h by using n-butyl aluminum alkoxide as a precursor and hydrochloric acid as a hydrolysis catalyst, and drying to prepare alumina dry gel, and carrying out peptization at 95-98 ℃ to prepare nano alumina sol (12-25 wt%, 10-50 nm).
In the embodiment of the invention, the silver ion doped nano zinc oxide is self-made, and the specific preparation method comprises the following steps: adopting a direct precipitation method, taking zinc chloride as a precursor and ammonium oxalate as a precipitator, reacting for 6 hours at normal temperature, centrifuging, washing, adding deionized water into a filter cake, and adding 40ppm of silver nitrate to prepare the silver ion doped nano zinc oxide dispersion liquid.
In the embodiment of the invention, the titanium dioxide is anatase titanium dioxide, which is purchased from stone sources and has the model of A100;
in the embodiment of the invention, the VAE emulsion is purchased from Beijing Oriental, and the model is 707;
in the examples of the invention, the polyacrylic emulsion was purchased from BASF, model number anchorage 400;
in the embodiment of the invention, the polyvinyl alcohol is purchased from Chuanweipetrochemical, and the model is 1788.
Example 1
The composition of the covering basement membrane comprises the following components in parts by mass:
the preparation method of the composition of the covering basement membrane comprises the following steps:
s1, mixing nano alumina sol (with the size of 15nm and the solid content of 12 wt%) and deionized water according to the mass parts, and dispersing by using a high-speed dispersion machine at the rotating speed of 200 rpm; then slowly adding titanium dioxide, adjusting the rotating speed to 800rpm and maintaining for 1h to obtain a dispersion liquid;
s2, adding citric acid, and adjusting the pH value of the dispersion liquid to 3;
and S3, adding the silver ion doped nano zinc oxide and the VAE emulsion into the dispersion liquid in the S2 according to the mass parts, and stirring for 1 hour to obtain a finished product.
Example 2
The composition of the covering basement membrane comprises the following components in parts by mass:
the preparation method of the composition of the covering basement membrane comprises the following steps:
s1, mixing nano alumina sol (with the size of 30nm and the solid content of 15 wt%) and deionized water according to the mass parts, and dispersing by using a high-speed dispersion machine at the rotating speed of 100 rpm; slowly adding titanium dioxide, adjusting the rotating speed to 900rpm and maintaining for 1h to obtain a dispersion liquid;
s2, adding citric acid, and adjusting the pH value of the dispersion liquid to 2;
and S3, adding the silver ion doped nano zinc oxide and the polyacrylic acid emulsion into the dispersion liquid in the S2 according to the mass parts, and stirring for 1 hour to obtain a finished product.
Example 3
The composition of the covering basement membrane comprises the following components in parts by mass:
the preparation method of the composition of the covering basement membrane comprises the following steps:
s1, mixing nano alumina sol (with the size of 45nm and the solid content of 25 wt%) and deionized water according to the mass parts, and dispersing by using a high-speed dispersion machine at the rotating speed of 150 rpm; then slowly adding titanium dioxide, adjusting the rotating speed to 1000rpm and maintaining for 1h to obtain a dispersion liquid;
s2, adding citric acid, and adjusting the pH value of the dispersion liquid to 2.5;
and S3, adding the silver ion doped nano zinc oxide and polyvinyl alcohol into the dispersion liquid in the S2 according to the mass parts, and stirring for 1 hour to obtain a finished product.
Comparative example 1
Comparative example 1 the selected ingredients, parts by mass and preparation method were the same as in example 1, with the only difference that comparative example 1 did not use citric acid to adjust the pH.
Comparative example 2
The comparative example 2 and the example 1 have the same selected components, mass parts and preparation method, and the only difference is that no silver ion doped nano zinc oxide is added in the comparative example 2.
Test example:
the coverlay base films prepared in examples 1-3 and comparative examples 1-2 were characterized as follows:
1. and (3) testing the covering power of the base film: according to GB 1726-1979 coating hiding power determination brushing method;
2. testing the base film filler settlement rate: the test method comprises the following steps: diluting the base film by one time, uniformly stirring, pouring into a measuring cylinder of 100mL, standing for 24h, and taking the number of mL above the obvious boundary of the filler and the glue solution as the sedimentation value;
3. and (3) testing the mildew resistance of the base film: according to GB 1741 "determination of resistance to mildew of paint films".
The results of the tests obtained are shown in table 1.
Table 1 test results of the coverlay base films prepared in examples 1 to 3 and comparative examples 1 to 2
| Item/result | Mildew resistance | Covering power (g/square meter) | Sedimentation Rate (ml) |
| Example 1 | Level 0 | 45.2 | 0.3 |
| Example 2 | Level 0 | 35.7 | 0.2 |
| Examples3 | Level 0 | 25.8 | 0.1 |
| Comparative example 1 | Level 0 | 70.1 | 25.0 |
| Comparative example 2 | Grade 3 | 45.5 | 0.3 |
It can be seen that the data of examples 1-3 are significantly better than those of comparative examples 1-2, indicating the advancement of the technical solution of the present invention.
The above examples are given for the purpose of illustrating the invention clearly and not for the purpose of limiting the same, and it will be apparent to those skilled in the art that, in light of the above description, numerous modifications and variations can be made in the form and details of the embodiments of the invention described herein, and it is not intended to be exhaustive or to limit the invention to the precise forms disclosed.
Claims (10)
1. The composition of the covering basement membrane is characterized by comprising the following components in parts by mass:
an acid;
and (3) water.
2. The composition of the overlaping base film according to claim 1, characterized in that the nano alumina sol has a solid content of 12-25 wt%.
3. The composition of the overlayed base film of claim 1 wherein the silver ions comprise 50 to 100ppm of the silver ion doped nano zinc oxide.
4. The composition of the overlayed base film of claim 1 wherein the silver ion doped nano zinc oxide has a solids content of 40 to 60 wt%.
5. The composition of the overlayed basement membrane of claim 1 wherein the film forming material is selected from one of polyacrylic acid emulsion, VAE emulsion, polyvinyl alcohol.
6. The composition of the overlayed base film of claim 1 wherein the titanium dioxide is anatase titanium dioxide.
7. The composition of the overlayed base film of claim 1 wherein the nano alumina sol is 10 to 50nm in size.
8. Method for the preparation of a composition of a mulch film according to any one of claims 1-7 characterised by the steps of:
s1, mixing nano alumina sol with water, adding titanium dioxide, and stirring to obtain a dispersion liquid;
s2, adjusting the pH value of the dispersion liquid to 2-3;
and S3, adding the silver ion doped nano zinc oxide and the film forming substance into the dispersion liquid in the S2, and stirring to obtain a finished product.
9. The method for producing a composition of a coverable base film according to claim 8, wherein in the step S1, before adding titanium dioxide, the stirring speed is 200-300 rpm; after the addition of titanium dioxide, the stirring speed was 800-.
10. The method for preparing a composition of a coverable base film according to claim 8, wherein the stirring speed in S2 is 100-200 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983378.3A CN112143306A (en) | 2020-09-17 | 2020-09-17 | Covering base film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010983378.3A CN112143306A (en) | 2020-09-17 | 2020-09-17 | Covering base film and preparation method thereof |
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| CN112143306A true CN112143306A (en) | 2020-12-29 |
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| CN202010983378.3A Pending CN112143306A (en) | 2020-09-17 | 2020-09-17 | Covering base film and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101137731A (en) * | 2005-03-09 | 2008-03-05 | 东海旅客铁道株式会社 | Titanium oxide-coating agent, and forming method for titanium oxide-coating film |
| CN101525504A (en) * | 2009-03-31 | 2009-09-09 | 上海洁森环保科技有限公司 | Photocatalytic self-cleaning film coating agent with self-layered isolation effect and preparation method thereof |
| CN103572507A (en) * | 2012-07-24 | 2014-02-12 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method for antibiosis ultraviolet prevention silk fibroin nanofiber membrane |
| CN104277626A (en) * | 2014-06-18 | 2015-01-14 | 北京迪百斯特科技发展有限公司 | Air purification lacquer and preparation method thereof |
| CN107400443A (en) * | 2017-07-10 | 2017-11-28 | 上海大学 | The preparation method and application of Nano sol/polyaniline/aqueous epoxy resins composite coating |
| CN108744995A (en) * | 2018-06-06 | 2018-11-06 | 广州康盛生物科技有限公司 | A kind of antibacterial composite hollow fiber membrane and preparation method thereof |
-
2020
- 2020-09-17 CN CN202010983378.3A patent/CN112143306A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101137731A (en) * | 2005-03-09 | 2008-03-05 | 东海旅客铁道株式会社 | Titanium oxide-coating agent, and forming method for titanium oxide-coating film |
| CN101525504A (en) * | 2009-03-31 | 2009-09-09 | 上海洁森环保科技有限公司 | Photocatalytic self-cleaning film coating agent with self-layered isolation effect and preparation method thereof |
| CN103572507A (en) * | 2012-07-24 | 2014-02-12 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method for antibiosis ultraviolet prevention silk fibroin nanofiber membrane |
| CN104277626A (en) * | 2014-06-18 | 2015-01-14 | 北京迪百斯特科技发展有限公司 | Air purification lacquer and preparation method thereof |
| CN107400443A (en) * | 2017-07-10 | 2017-11-28 | 上海大学 | The preparation method and application of Nano sol/polyaniline/aqueous epoxy resins composite coating |
| CN108744995A (en) * | 2018-06-06 | 2018-11-06 | 广州康盛生物科技有限公司 | A kind of antibacterial composite hollow fiber membrane and preparation method thereof |
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Application publication date: 20201229 |