CN110684307B - Water-resistant redispersible latex powder and preparation method thereof - Google Patents
Water-resistant redispersible latex powder and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L31/00—Compositions of 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; Compositions of derivatives of such polymers
- C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C08L31/04—Homopolymers or copolymers of vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/122—Pulverisation by spraying
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L31/00—Compositions of 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; Compositions of derivatives of such polymers
- C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2331/00—Characterised by the use of 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, or carbonic acid, or of a haloformic acid
- C08J2331/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2331/00—Characterised by the use of 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, or carbonic acid, or of a haloformic acid
- C08J2331/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
- C08J2331/04—Homopolymers or copolymers of vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of 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; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention discloses a water-resistant redispersible latex powder and a preparation method thereof, wherein the raw materials comprise a polymer emulsion, a polyvinyl alcohol aqueous solution, an anti-caking agent and an organic silicon cross-linking agent, wherein the polymer emulsion is a mixture of a tertiary carbonic acid emulsion and at least one of a vinyl acetate-ethylene copolymer emulsion and a styrene-acrylic emulsion. The redispersible latex powder has excellent redispersibility, cohesiveness and water resistance, is suitable for the field of building material mortar with high water resistance requirement, and has wide market prospect.
Description
Technical Field
The invention relates to a water-resistant redispersible latex powder and a preparation method thereof
Technical Field
Redispersible latex powders are polymer powders having redispersibility obtained by spray drying after adding other modifying substances to polymer emulsions, which can be reformed into emulsions with water as the dispersing medium. The redispersible latex powder is used as a mortar additive, can improve the construction property of mortar, improve the bonding strength of the mortar, increase the flexibility of the mortar, and can improve the aging resistance, the water resistance, the acid and alkali resistance and other properties of the mortar by using the latex powder with special properties. At present, in the domestic latex powder, the universal rubber powder is more, and the performance of the latex powder with special performance is generally poorer.
Patent CN2015104580316 describes a water-resistant re-dispersible latex powder, which can resist water for 4h without falling off. However, the polymer emulsion used in the invention is a vinyl acetate-ethylene-acrylate copolymer emulsion, the emulsion has poor water resistance, the water resistance is achieved by adding a modification additive, and the water resistance is not improved from the polymer.
Disclosure of Invention
Based on the problems in the prior art, the invention provides a water-resistant redispersible latex powder and a preparation method thereof, aiming at obtaining the redispersible latex powder with high water resistance strength and good dispersibility.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water-resistant redispersible latex powder is characterized in that: the raw materials of the water-resistant redispersible latex powder comprise polymer emulsion, polyvinyl alcohol aqueous solution, anti-caking agent and organic silicon cross-linking agent.
Further, the polymer emulsion is a mixture of versatic acid emulsion and at least one of vinyl acetate-ethylene copolymer emulsion and styrene-acrylic emulsion, and the mass percent of the versatic acid emulsion is 50-80%.
Further, the solid content of the polymer emulsion is 30-70%, and the viscosity is 500-5000 mPa.s.
Further, the polymerization degree of the polyvinyl alcohol is 500-2400, and the alcoholysis degree is 85-92%.
Further, the solid content of the polyvinyl alcohol aqueous solution is 10% -35%, and the mass ratio of the polyvinyl alcohol aqueous solution to the polymer emulsion is 1: 5.
Further, the addition amount of the anti-caking agent accounts for 0.5 to 5 percent of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution; the addition amount of the organosilicon crosslinking agent accounts for 0.1-2% of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution.
Further, the anti-caking agent is at least one of wollastonite powder, calcium carbonate, talcum powder, kaolin, bentonite and silicon dioxide.
The preparation method of the water-resistant redispersible latex powder comprises the following steps:
step 1, adding a small amount of water into a dissolving kettle, and then adding polyvinyl alcohol; introducing water vapor into the dissolving kettle and stirring (the water vapor can be added from an opening on the kettle wall), and the water vapor forms a vortex in the dissolving kettle to fully dissolve the polyvinyl alcohol; introducing water vapor and stirring for 0.5-1.5h to obtain a polyvinyl alcohol aqueous solution;
step 2, mixing the polyvinyl alcohol aqueous solution and the polymer emulsion according to a ratio, and uniformly stirring to obtain a spray solution;
and 3, carrying out spray drying on the spray solution, mixing the obtained powder with an anti-caking agent, then sending the mixture into a drying and mixing bin to carry out secondary mixing with an organic silicon cross-linking agent, and uniformly mixing to obtain the water-resistant redispersible emulsion powder.
Compared with the prior art, the invention has the beneficial effects that:
1. the redispersible latex powder has excellent redispersibility, cohesiveness and water resistance, is suitable for the field of building material mortar with high water resistance requirement, and has wide market prospect.
2. In the formula system of the redispersible latex powder, a plurality of polymer emulsions are selected and mixed according to a proper matching ratio, so that the advantages of the polymer emulsions can be fully exerted, and the water resistance and the water-resistant bonding strength of the latex powder are obviously improved.
3. In the preparation of the redispersible latex powder, the polyvinyl alcohol is dissolved by the water vapor, the pressure in the kettle is positive along with the addition of the water vapor, and the water vapor forms vortex in the kettle, so that the original solution is dissolved more thoroughly, the polymer emulsion is wrapped more uniformly, and the redispersibility of the latex powder can be obviously improved.
4. In the formula system of the redispersible latex powder, the organosilicon crosslinking agent powder has excellent water resistance and heat resistance, and the water resistance of the latex powder is improved.
5. The preparation process is simple and easy to realize industrialization.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
The polyvinyl alcohols having various degrees of polymerization and alcoholysis used in the examples described below are commercially available, for example, from Anhui Uigai materials GmbH, Anhui province, Inc.
The polymer emulsions used in the following examples are all commercially available, for example: the tertiary carbonic acid emulsion can be purchased from Dexin chemical Co., magnetic county; the vinyl acetate-ethylene copolymer emulsion can be 705 model of Guangxi Anhui vitamin science and technology Limited; the styrene-acrylic emulsion can be S-01 styrene-acrylic emulsion in the chemical industry of Heda.
The silicone crosslinkers and antiblocking agents used in the following examples are commercially available, as follows: the silicone crosslinker may be purchased from Shandong Weiduofeng Biotechnology, Inc.
Example 1
The preparation method of the water-resistant redispersible latex powder of this example is as follows:
step 1, adding a small amount of water into a dissolving kettle, and then adding polyvinyl alcohol with the polymerization degree of 500 and the alcoholysis degree of 85%; introducing water vapor into the dissolving kettle and stirring, wherein the water vapor forms a vortex in the dissolving kettle to fully dissolve the polyvinyl alcohol; introducing water vapor and stirring for 1h to obtain the polyvinyl alcohol aqueous solution with the solid content of 12 percent.
And 2, mixing the polyvinyl alcohol aqueous solution with polyvinyl acetate-ethylene copolymer emulsion (the viscosity is 1500mPa.s, the solid content is 45%) and tertiary carbonic acid emulsion (the viscosity is 2300mPa.s, the solid content is 53%) according to the mass ratio of 1:2.5:2.5, and then uniformly stirring to obtain spray liquid.
And 3, spray drying the spray solution (the inlet temperature of a drying tower is 130 ℃, the outlet temperature is 75 ℃), mixing the obtained powder with an anti-caking agent, then sending the mixture into a back mixing chamber to mix the powder with an organic silicon cross-linking agent for the second time (the mixing time is 0.5h), and uniformly mixing to obtain the water-resistant redispersible emulsion powder. Wherein: the anti-caking agent consists of heavy calcium powder and talcum powder according to the mass ratio of 3:1, and the addition amount of the anti-caking agent accounts for 1.8 percent of the mass of the solid in the polymer emulsion and the polyvinyl alcohol aqueous solution; the addition of the organosilicon crosslinking agent accounts for 0.1 percent of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution.
The latex powder obtained in this example was subjected to the following performance tests:
1. physical Properties
The redispersible rubber powder obtained in this example had a bulk density of 550kg/m3The viscosity is 630 mPas, the average particle size (d50) is 48 μm, and the fineness (more than or equal to 200 μm) is 2.5%.
2. Water resistance
The redispersible rubber powder obtained in the embodiment can be dispersed into regenerated emulsion when meeting water, and after film forming and drying again, the redispersible rubber powder can be tested for the resistance performance and can not fall off after being resistant to water for 8 hours.
3. Water resistance strength
The water resistance strength of the redispersible rubber powder obtained in the embodiment is tested according to the GBT 29906-2013 molded polyphenyl board thin plastered external thermal insulation system material standard, and the results are as follows: 0.11MPa with a molded polystyrene board and 0.64MPa with a concrete board.
Example 2
The preparation method of the water-resistant redispersible latex powder of this example is as follows:
step 1, adding a small amount of water into a dissolving kettle, and then adding polyvinyl alcohol with the polymerization degree of 500 and the alcoholysis degree of 88%; introducing water vapor into the dissolving kettle and stirring, wherein the water vapor forms a vortex in the dissolving kettle to fully dissolve the polyvinyl alcohol; introducing water vapor and stirring for 1h to obtain the polyvinyl alcohol aqueous solution with the solid content of 16 percent.
And 2, mixing the polyvinyl alcohol aqueous solution with polyvinyl acetate-ethylene copolymer emulsion (the viscosity is 950mPa.s, the solid content is 43%) and tertiary carbonic acid emulsion (the viscosity is 3600mPa.s, the solid content is 55%) according to the mass ratio of 1:2.5:2.5, and then uniformly stirring to obtain spray liquid.
And 3, spray drying the spray solution (the inlet temperature of a drying tower is 135 ℃, the outlet temperature is 75 ℃), mixing the obtained powder with an anti-caking agent, then sending the mixture into a back mixing chamber to mix the powder with an organic silicon cross-linking agent for the second time (the mixing time is 1h), and uniformly mixing to obtain the water-resistant redispersible emulsion powder. Wherein: the anti-caking agent consists of heavy calcium powder and silicon dioxide according to the mass ratio of 3:1, and the addition amount of the anti-caking agent accounts for 2.2 percent of the mass of the solid in the polymer emulsion and the polyvinyl alcohol aqueous solution; the addition of the organosilicon crosslinker accounts for 0.5 percent of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution.
The latex powder obtained in this example was subjected to the following performance tests:
1. physical Properties
The redispersible rubber powder obtained in this example had a bulk density of 540kg/m3The viscosity is 620 mPas, the average particle size (d50) is 75 μm, and the fineness (not less than 200 μm) is 5%.
2. Water resistance
The redispersible rubber powder obtained in the embodiment can be dispersed into regenerated emulsion when meeting water, and after film forming and drying again, the redispersible rubber powder can be tested for the resistance performance and can not fall off after being resistant to water for 8 hours.
3. Water resistance strength
The water resistance strength of the redispersible rubber powder obtained in the embodiment is tested according to the GBT 29906-2013 molded polyphenyl board thin plastered external thermal insulation system material standard, and the results are as follows: 0.11MPa with molding polyphenyl board and 0.60MPa with concrete board.
Example 3
The preparation method of the water-resistant redispersible latex powder of this example is as follows:
step 1, adding a small amount of water into a dissolving kettle, and then adding polyvinyl alcohol with the polymerization degree of 1700 and the alcoholysis degree of 88%; introducing water vapor into the dissolving kettle and stirring, wherein the water vapor forms a vortex in the dissolving kettle to fully dissolve the polyvinyl alcohol; introducing water vapor and stirring for 1.2h to obtain the polyvinyl alcohol aqueous solution with the solid content of 16 percent.
And 2, mixing the polyvinyl alcohol aqueous solution with polyvinyl acetate-ethylene copolymer emulsion (the viscosity is 2300mPa.s, the solid content is 48%) and tertiary carbonic acid emulsion (the viscosity is 3400mPa.s, the solid content is 60%) according to the mass ratio of 1:2.5:2.5, and then uniformly stirring to obtain spray liquid.
And 3, spray drying the spray solution (the inlet temperature of a drying tower is 135 ℃, the outlet temperature is 75 ℃), mixing the obtained powder with an anti-caking agent, then sending the mixture into a back mixing chamber to mix the powder with an organic silicon cross-linking agent for the second time (the mixing time is 0.5h), and uniformly mixing to obtain the water-resistant redispersible emulsion powder. Wherein: the anti-caking agent consists of heavy calcium powder and silicon dioxide according to the mass ratio of 3:1, and the addition amount of the anti-caking agent accounts for 3.0 percent of the mass of the solid in the polymer emulsion and the polyvinyl alcohol aqueous solution; the addition of the organosilicon crosslinking agent accounts for 1 percent of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution.
The latex powder obtained in this example was subjected to the following performance tests:
1. physical Properties
The redispersible rubber powder obtained in this example had a bulk density of 540kg/m3The viscosity is 850 mPas, the average particle diameter (d50) is 110 μm, and the fineness (more than or equal to 200 μm) is 10%.
2. Water resistance
The redispersible rubber powder obtained in the embodiment can be dispersed into regenerated emulsion when meeting water, and after film forming and drying again, the redispersible rubber powder can be tested for the resistance performance and can not fall off after being resistant to water for 8 hours.
3. Water resistance strength
The water resistance strength of the redispersible rubber powder obtained in the embodiment is tested according to the GBT 29906-2013 molded polyphenyl board thin plastered external thermal insulation system material standard, and the results are as follows: 0.10MPa with a molded polystyrene board and 0.66MPa with a concrete board.
Example 4
The preparation method of the water-resistant redispersible latex powder of this example is as follows:
step 1, adding a small amount of water into a dissolving kettle, and then adding polyvinyl alcohol with the polymerization degree of 2400 and the alcoholysis degree of 92%; introducing water vapor into the dissolving kettle and stirring, wherein the water vapor forms a vortex in the dissolving kettle to fully dissolve the polyvinyl alcohol; introducing water vapor and stirring for 1.5h to obtain the polyvinyl alcohol aqueous solution with the solid content of 28 percent.
And 2, mixing the polyvinyl alcohol aqueous solution with polyvinyl acetate-ethylene copolymer emulsion (the viscosity is 1600mPa.s, the solid content is 46%) and tertiary carbonic acid emulsion (the viscosity is 4200mPa.s, the solid content is 53%) according to the mass ratio of 1:2.5:2.5, and then uniformly stirring to obtain spray liquid.
And 3, spray drying the spray solution (inlet temperature of a drying tower is 140 ℃ and outlet temperature is 80 ℃), mixing the obtained powder with an anti-caking agent, then sending the mixture into a back mixing chamber to mix the powder with an organic silicon cross-linking agent for the second time (mixing time is 1h), and uniformly mixing to obtain the water-resistant redispersible emulsion powder. Wherein: the anti-caking agent consists of heavy calcium powder and silicon dioxide according to the mass ratio of 3:1, and the addition amount of the anti-caking agent accounts for 1.5 percent of the mass of the solid in the polymer emulsion and the polyvinyl alcohol aqueous solution; the addition of the organosilicon crosslinking agent accounts for 2 percent of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution.
The latex powder obtained in this example was subjected to the following performance tests:
1. physical Properties
The redispersible rubber powder obtained in this example had a bulk density of 580kg/m3The viscosity was 1200 mPas, the average particle diameter (d50) was 103 μm, and the fineness (. gtoreq.200 μm) was 10%.
2. Water resistance
The redispersible rubber powder obtained in the embodiment can be dispersed into regenerated emulsion when meeting water, and after film forming and drying again, the redispersible rubber powder can be tested for the resistance performance and can not fall off after being resistant to water for 8 hours.
3. Water resistance strength
The water resistance strength of the redispersible rubber powder obtained in the embodiment is tested according to the GBT 29906-2013 molded polyphenyl board thin plastered external thermal insulation system material standard, and the results are as follows: 0.11MPa with a molded polystyrene board and 0.64MPa with a concrete board.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A water-resistant redispersible latex powder characterized in that: the raw materials of the water-resistant redispersible latex powder comprise a polymer emulsion, a polyvinyl alcohol aqueous solution, an anti-caking agent and an organic silicon cross-linking agent; the polymer emulsion is a mixture of versatic acid emulsion and vinyl acetate-ethylene copolymer emulsion, and the mass percentage of the versatic acid emulsion is 50-80%.
2. The water-resistant redispersible latex powder of claim 1 wherein: the solid content of the polymer emulsion is 30-70%, and the viscosity is 500-5000 mPa.s.
3. The water-resistant redispersible latex powder of claim 1 wherein: the polymerization degree of the polyvinyl alcohol is 500-2400, and the alcoholysis degree is 85-92%.
4. The water-resistant redispersible latex powder of claim 2 wherein: the solid content of the polyvinyl alcohol aqueous solution is 10% -35%, and the mass ratio of the polyvinyl alcohol aqueous solution to the polymer emulsion is 1: 5.
5. The water-resistant redispersible latex powder of claim 4 wherein: the addition amount of the anti-caking agent accounts for 0.5 to 5 percent of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution; the addition amount of the organosilicon crosslinking agent accounts for 0.1-2% of the mass of the solids in the polymer emulsion and the polyvinyl alcohol aqueous solution.
6. The water-resistant redispersible latex powder of claim 1 wherein: the anti-caking agent is at least one of wollastonite powder, calcium carbonate, talcum powder, kaolin, bentonite and silicon dioxide.
7. The method for preparing the water-resistant redispersible latex powder of any one of claims 1 to 6, comprising the steps of:
step 1, adding a small amount of water into a dissolving kettle, and then adding polyvinyl alcohol; introducing water vapor into the dissolving kettle and stirring, wherein the water vapor forms a vortex in the dissolving kettle to fully dissolve the polyvinyl alcohol; introducing water vapor and stirring for 0.5-1.5h to obtain a polyvinyl alcohol aqueous solution;
step 2, mixing the polyvinyl alcohol aqueous solution and the polymer emulsion according to a ratio, and uniformly stirring to obtain a spray solution;
and 3, carrying out spray drying on the spray solution, mixing the obtained powder with an anti-caking agent, then sending the mixture into a drying and mixing bin to carry out secondary mixing with an organic silicon cross-linking agent, and uniformly mixing to obtain the water-resistant redispersible emulsion powder.
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| CN112143149A (en) * | 2020-09-29 | 2020-12-29 | 安徽皖维高新材料股份有限公司 | Novel acrylic latex powder and preparation method thereof |
| CN112852227A (en) * | 2021-01-14 | 2021-05-28 | 佛山市凯隽新建材科技有限公司 | High-molecular polymer spraying material for tunnel waterproofing and preparation and application methods thereof |
| CN115710103A (en) * | 2022-10-28 | 2023-02-24 | 广东复特新型材料科技有限公司 | Artistic decorative mortar |
| CN115849854B (en) * | 2022-12-26 | 2024-04-26 | 君旺窗业(上海)有限公司 | Silicon hydrocarbon heat-insulating plate and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102382407A (en) * | 2011-08-19 | 2012-03-21 | 安徽皖维高新材料股份有限公司 | Redispersible emulsion powder and preparation method thereof |
| CN102976660A (en) * | 2012-12-07 | 2013-03-20 | 天津市科垣新型建材有限公司 | Disposable disperse re-dispersible emulsion powder |
| CN108003528A (en) * | 2017-12-08 | 2018-05-08 | 江苏福吉利亚建材有限公司 | A kind of preparation method of redispersable latex powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382407A (en) * | 2011-08-19 | 2012-03-21 | 安徽皖维高新材料股份有限公司 | Redispersible emulsion powder and preparation method thereof |
| CN102976660A (en) * | 2012-12-07 | 2013-03-20 | 天津市科垣新型建材有限公司 | Disposable disperse re-dispersible emulsion powder |
| CN108003528A (en) * | 2017-12-08 | 2018-05-08 | 江苏福吉利亚建材有限公司 | A kind of preparation method of redispersable latex powder |
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