CN103146240B - Dry powder latex paint and preparation method - Google Patents
Dry powder latex paint and preparation method Download PDFInfo
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- CN103146240B CN103146240B CN201310099483.0A CN201310099483A CN103146240B CN 103146240 B CN103146240 B CN 103146240B CN 201310099483 A CN201310099483 A CN 201310099483A CN 103146240 B CN103146240 B CN 103146240B
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Abstract
The invention discloses a dry powder latex paint and a preparation method. The dry powder latex paint is characterized by consisting of the following raw materials in parts by weight: 55-70 parts of inorganic powder, 15-25 parts of redispersible latex powder, 10-20 parts of whitening agent, 5-10 parts of active agent, 0.5-1 part of thickener, 0.5-1 part of dispersant, 0.3-0.5 part of antifoaming agent and 0.2-0.5 part of leveling agent. According to the invention, the dry powder latex powder and the inorganic color filler are subjected to interface stripping and coating in a vortex airflow micro-machine to obtain a dry powder latex paint. The dry powder latex paint has good coating effect, delicate coating and excellent film formation, prevents powder removal, is convenient to use, and does not contain VOC (volatile organic compounds), thereby being really an environment-friendly and efficient latex paint.
Description
Technical field
The present invention relates to emulsion paint field, be specifically related to a kind ofly in water, the dry powder emulsion paint of emulsion form and preparation method to be formed by rapid solution.
Background technology
Architectural Paint in China product is towards future developments such as Water-borne modification, high solids content, low VOC.Emulsion paint as important water-borne coatings kind, because easy to use, the features such as toning, water-tolerant that are easy to occupy absolute share on Coating Market.But because it is dispersion system, solid content is mostly at 30-40%, all the other are moisture and volatile substances, larger waste is caused for packaging, storage, transport and use, especially in order to make liquid emulsion paint reach storage-stable, not go mouldy, need to add the auxiliary agents such as frostproofer, lubricant, sanitas, such as ethylene glycol, ammoniacal liquor, formaldehyde etc., become the main source of its VOC, cause environmental pollution.In order to solve the VOC volatilization problems of current emulsion paint, occurred dry powder emulsion paint in recent years, dry powder emulsion paint does not need to add sanitas etc., has and produces and easy to use, Diamond Search, be convenient to the advantages such as packed and transported, become real environment friendly emulsion paint.
China Patent Publication No. CN 1576323A discloses a kind of powdery emulsion paint preparation method, and the method obtains product calcite in powder, sierozem power, talcum powder, titanium dioxide, multi-functional rubber powder, methylcellulose gum, polyvinyl alcohol and Virgin's milk rubber powder by the stirring of absorption type stirrer.
China Patent Publication No. CN102417746A discloses a kind of powdery emulsion paint and production method, and the method obtains product through simple screen after titanium dioxide, talcum powder, coarse whiting, latex powder, calcined kaolin, silica powder and mica powder being placed in stirred pot mixing again.
Emulsion paint has good film-forming properties, abrasion resistance as coating, its membrane formation mechanism is that filming emulsion is filled into row to face in a liquid state fully to grind coated, therefore the complete coated color stuffing particle of latex particle, the film obtained becomes fine and close, and its film-forming properties, abrasion resistance, weathering resistance, anticreep mealiness can be improved greatly.And above-mentioned dry powder emulsion paint patent is obtained by being directly dry mixed film forming rubber powder, color stuffing, auxiliary agent, although on-the-spot water-solublely emulsion paint can be obtained, but due to the particulate material that rubber powder is single, be difficult to color stuffing is carried out completely coated, therefore cause the rubber powder interface in dry powder emulsion paint to expose to reduce, its coated bonding effect can not be given full play to, smear the defects such as rear appearance is coarse, shedding, have impact on the use properties of dry powder emulsion paint.
According to the above, although dry powder emulsion paint VOC free volatilizees, easy to use, cost is low, but the rubber powder of its core equally cannot disperse completely coated with emulsion to color stuffing under dry powder condition, cause dry powder emulsion paint can not give full play to the interfacial adhesion of rubber powder, therefore solve fully coated particularly important to color stuffing under dry powder condition of rubber powder.
Summary of the invention
The defect such as to the present invention is directed in current dry powder emulsion paint that rubber powder is coated not exclusively to color stuffing, shedding, coating are coarse, provides a kind of and in water, can form the dry powder emulsion paint of homogeneous latex emulsion by rapid solution.
Further aim of the present invention is to provide a kind of preparation method of dry powder emulsion paint, the method is by mechanical force and chemical disperse modified, the complete coated color stuffing of its rubber powder is made by phased separation rubber powder and color stuffing interface, the dry powder emulsion paint obtained compared with similar products, rubber powder interface increase, water-soluble speed accelerate, color stuffing by completely coated, coating uniform is fine and smooth and not easily shedding.
A kind of dry powder emulsion paint of the present invention, its raw material composition (weight part) is as follows:
Inorganic powder 55-70 part,
Redispersable latex powder 15-25 part,
Whitening agent 10-20 part,
Promoting agent 5-10 part,
Thickening material 0.5-1 part,
Dispersion agent 0.5-1 part,
Defoamer 0.3-0.5 part,
Flow agent 0.2-0.5 part,
Wherein said inorganic powder is at least one in particle diameter 1250-2000 object light calcium carbonate, water-ground limestone, calcined kaolin, talcum powder, mica powder, asbestos powder; Described redispersable latex powder is at least one in vinyl acetate and ethylene copolymer rubber powder, ethene and vinylchlorid and vinyl laurate terpolymer rubber powder, vinyl acetate and higher aliphatic vinyl acetate copolymerization rubber powder, vinyl acetate copolymerized rubber powder, acrylate and styrene copolymerized rubber powder, vinyl acetate and acrylate and higher aliphatic vinyl acetate terpolymer rubber powder, stupid ethene and butadiene copolymer rubber powder; Described whitening agent is at least one in titanium dioxide, zinc oxide, barium sulfate; Said promoting agent is particle diameter >=6000 object micro-crystal powders; Described thickening material is at least one in Vltra tears, methylcellulose gum, carboxymethyl cellulose, carboxyethyl cellulose; Described dispersion agent is at least one in sodium polyacrylate, Zelan 338, Sodium hexametaphosphate 99, ammonium salt; Described defoamer is at least one in polyether antifoam agent, silicon oil foam killer, mineral oil; Described flow agent is at least one in urethane flow agent, silicone based flow agent.
The fine powder that above-mentioned said micro-crystal powder is made up of silicon-dioxide and aluminium sesquioxide or quartzy powder.
Above-mentioned said promoting agent can strengthen the comprehensive mechanical performance of product coating, water proof anti-seepage, resistance to cracking.
The concrete preparation process of a kind of dry powder emulsion paint of the present invention is as follows:
1) 55-70 part inorganic powder, 15-25 part redispersable latex powder, 10-20 part whitening agent, 0.5-1 part dispersion agent, 5-10 part promoting agent are mixed by mixing machine under 150-200 rev/min of rotating speed make it even;
2) by carrying out interface peel, coated in the fine machine of eddy airstream after step 1) being mixed;
3) by step 2) products obtained therefrom adds 0.5-1 part thickening material, 0.3-0.5 part defoamer and 0.2-0.5 part flow agent and drops into mixing machine ageing 10-20 minute at 40-50 DEG C, obtain with color stuffing be core, rubber powder for shell coated complete a kind of can the water-soluble dry powder emulsion paint of speed.
In above-mentioned a kind of powdery emulsion paint and preparation method, wherein the fine machine of said eddy airstream is the fine machine of continous way, body inner chamber is round shape, be divided into by an annular plate, lower two portions, bottom is divided into inlet plenum, upper part is separated into crushiing chamber and grading room by flow splitter, crushiing chamber is made up of grating disk and lining, added raw material is used for smash into fine powder, grading room is made up of classifying turbine, fine powder can be divided into the qualified fine powder of granularity and underproof meal, qualified fine powder is sucked out outside machine through discharge nozzle, stored after product separation to hopper by tornado feeder set (cyclonic separator), underproof meal falls back to crushiing chamber along flow splitter inwall, continue to pulverize, till reaching qualified product requirement.
In above-mentioned a kind of dry powder emulsion paint and preparation method, rotating speed control 1000-1500 rev/min peeled off by the fine machine of wherein said eddy airstream.
The feature that the present invention gives prominence to is:
1, good, the not shedding of covered effect and coating fine and smooth.Dry powder latex powder and color stuffing are carried out stripping interface, coated by the present invention in the fine machine of eddy airstream, the complete powder cladding that to be formed with color stuffing be core, rubber powder is shell.
2, coating has good comprehensive mechanical performance, water impermeability and resistance to cracking.The present invention is by adding reactive powder, and the two-dimensional sheet structure of the high aspect ratio of reactive powder uniqueness, the coating after allowing Dry powder latex paint use has good comprehensive mechanical performance, water proof anti-seepage and resistance to cracking.
3, use and convenient transportation.The dry powder emulsion paint that the present invention obtains is Powdered, convenient transportation, exchange quick with water can become emulsion paint at the scene during use.
4. production cost is low and be widely used.Raw material of the present invention is cheaply easily bought, and production technique adopts totally-enclosed continuous cleaning type to produce, and the excellent product performance of production, can be widely used in interior finish, interior wall primer and various exterior coatings etc.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should be interpreted as scope of the present invention is only limitted to following example.When not departing from aforesaid method thought of the present invention, the various replacement made according to ordinary skill knowledge and customary means or change, all should be within the scope of the present invention.
embodiment 1
1) 15 parts of vinyl acetates and higher aliphatic vinyl acetate copolymerization rubber powder, 10 parts of sharp too titanium dioxides, 15 parts of light calcium carbonates, 10 parts of calcined kaolins, 30 parts of talcum powder, 5 parts of micro-crystal powders, 0.5 part of Zelan 338 are mixed by mixing machine under 200 revs/min of rotating speeds make it even;
2) mixed for step 1) work in-process are added in the fine machine of eddy airstream carry out interface peel, increase coated;
3) by step 2) products obtained therefrom input mixing machine, add 0.5 part of Vltra tears, 0.5 part of polyether antifoam agent and 0.5 part of urethane flow agent by ageing at 40 DEG C 20 minutes, obtain with color stuffing be core, rubber powder for strong a kind of of the coated integrity of shell can the water-soluble dry powder emulsion paint of speed.According to the requirement of GB/T9756-2009 " resin latex dope " interior finish, test its specific targets as following table:
| Project | Standard-required | Originally example test result is executed |
| Application property | Brush two roads accessible | Brush two roads accessible |
| Low-temperature stability (3 circulations) | Never degenerate | Never degenerate |
| Appearance of film | Normally | Normally |
| Time of drying (surface drying)/h | ≤2 | 1 |
| Alkali resistance (24h) | Without exception | Without exception |
| Abrasion resistance/time | 300(is qualified), 1000(acceptable end product), 5000(premium grads) | 3000 |
This product is applied to interior finish after mixing with 1:2 ratio with water, face uniform and smooth, has good brushing property and washable brush-type, not shedding after dry.
embodiment 2
1) 20 parts of vinyl acetates and ethylene copolymer rubber powder, 10 parts of zinc oxide, 40 parts of talcum powder, 20 parts of water-ground limestones, 5 parts of micro-crystal powders, 5 parts of silica powder, 0.8 part of Sodium hexametaphosphate 99 are mixed by mixing machine under 150 revs/min of rotating speeds make it even;
2) mixed for step 1) work in-process are added in the fine machine of eddy airstream carry out interface peel, increase coated;
3) by step 2) products obtained therefrom input mixing machine, add 0.5 part of methylcellulose gum, 0.4 part of polyether antifoam agent and 0.2 part of organosilicon flow agent by ageing at 50 DEG C 10 minutes, obtain with color stuffing be core, rubber powder for strong a kind of of the coated integrity of shell can the water-soluble dry powder emulsion paint of speed.According to the interior wall primer requirement of GB/T9756-2009 " resin latex dope ", test its specific targets as following table:
| Project | Standard-required | Originally example test result is executed |
| Application property | Brush accessible | Brush accessible |
| Appearance of film | Normally | Normally |
| Low-temperature stability (3 circulations) | Never degenerate | Never degenerate |
| Time of drying (surface drying)/h | ≤2 | 1.3 |
| Alkali burnout resistance (48h) | Without exception | Without exception |
| Alkali resistance (24h) | Without exception | Without exception |
This product is applied to interior wall primer after mixing with 1:2 ratio with water, and its film forming is excellent, and face uniform and smooth, primed surface is smooth.
embodiment 3
1) 20 parts of vinyl acetate copolymerized rubber powders, 10 parts of sharp too titanium dioxides, 5 parts of zinc oxide, 20 parts of talcum powder, 20 parts of light calcium carbonates, 10 parts of mica powders, 10 parts of calcined kaolins, 5 parts of micro-crystal powders, 1 part of sodium polyacrylate are mixed by mixing machine under 170 revs/min of rotating speeds make it even;
2) mixed for step 1) work in-process are added in the fine machine of eddy airstream carry out interface peel, increase coated;
3) by step 2) products obtained therefrom input mixing machine, add 1 part of carboxyethyl cellulose, 0.5 part of silicon oil foam killer and 0.5 part of urethane flow agent by ageing at 45 DEG C 15 minutes, obtain with color stuffing be core, rubber powder for strong a kind of of the coated integrity of shell can the water-soluble dry powder emulsion paint of speed.
According to GB/T9755-2001 " exterior wall coating material of synthetic resin emulsion " requirement, it is as follows to test its specific targets
| Project | Standard-required | Originally example test result is executed |
| Application property | Brush accessible | Brush accessible |
| Appearance of film | Normally | Normally |
| Low-temperature stability | Never degenerate | Never degenerate |
| Time of drying (surface drying)/h | ≤2 | 1.0 |
| Water tolerance | 96 hours without exception | 120 hours without exception |
| Alkali resistance (48h) | Without exception | Without exception |
| Artificial ageing resistance | 600h is non-foaming, do not peel off, flawless | 1200h is non-foaming, do not peel off, flawless |
This product can be used for exterior wall paint after mixing with 1:2 ratio with water, and film-forming properties, the resistance to property done the wash, water resistance are good.
Claims (4)
1. a dry powder emulsion paint, is characterized in that this emulsion paint is powdery emulsion paint, and its raw material composition weight part is as follows:
Inorganic powder 55-70 part,
Redispersable latex powder 15-25 part,
Whitening agent 10-20 part,
Promoting agent 5-10 part,
Thickening material 0.5-1 part,
Dispersion agent 0.5-1 part,
Defoamer 0.3-0.5 part,
Flow agent 0.2-0.5 part,
Wherein said inorganic powder is at least one in particle diameter 1250-2000 object light calcium carbonate, water-ground limestone, calcined kaolin, talcum powder, mica powder, asbestos powder; Described redispersable latex powder is at least one in vinyl acetate and ethylene copolymer rubber powder, ethene and vinylchlorid and vinyl laurate terpolymer rubber powder, vinyl acetate and higher aliphatic vinyl acetate copolymerization rubber powder, acrylate and styrene copolymerized rubber powder, vinyl acetate and acrylate and higher aliphatic vinyl acetate terpolymer rubber powder, vinylbenzene and butadiene copolymer rubber powder; Described whitening agent is at least one in titanium dioxide, zinc oxide, barium sulfate; Said promoting agent is the micro-crystal powder of particle diameter >=6000 object silicon-dioxide and aluminium sesquioxide composition or quartzy powder micro-crystal powder; Described thickening material is at least one in Vltra tears, methylcellulose gum, carboxymethyl cellulose, carboxyethyl cellulose; Described dispersion agent is at least one in sodium polyacrylate, Zelan 338, Sodium hexametaphosphate 99, ammonium salt; Described defoamer is at least one in polyether antifoam agent, silicon oil foam killer, mineral oil; Described flow agent is at least one in urethane flow agent, silicone based flow agent.
2. the preparation method of a kind of dry powder emulsion paint described in claim 1, is characterized in that concrete steps are as follows:
1) 55-70 part inorganic powder, 15-25 part redispersable latex powder, 10-20 part whitening agent, 0.5-1 part dispersion agent, 5-10 part promoting agent are mixed by mixing machine under 150-200 rev/min of rotating speed make it even;
2) by carrying out interface peel, coated in the fine machine of eddy airstream after step 1) being mixed;
3) by step 2) products obtained therefrom adds 0.5-1 part thickening material, 0.3-0.5 part defoamer and 0.2-0.5 part flow agent and drops into mixing machine ageing 10-20 minute at 40-50 DEG C, obtain with color stuffing be core, rubber powder for shell coated complete a kind of can the water-soluble dry powder emulsion paint of speed.
3. the preparation method of a kind of dry powder emulsion paint as claimed in claim 2, it is characterized in that the fine machine of described eddy airstream is the fine machine of continous way eddy airstream, inner chamber is round shape, is divided into upper and lower two portions by an annular plate.
4. the preparation method of a kind of dry powder emulsion paint as claimed in claim 2, is characterized in that the fine machine of eddy airstream carries out interface peel rotating speed control 1000-1500 rev/min.
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| CN201310099483.0A CN103146240B (en) | 2013-03-26 | 2013-03-26 | Dry powder latex paint and preparation method |
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| CN201310099483.0A CN103146240B (en) | 2013-03-26 | 2013-03-26 | Dry powder latex paint and preparation method |
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| CN103146240B true CN103146240B (en) | 2015-04-29 |
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| CN104212273A (en) * | 2014-08-01 | 2014-12-17 | 上海展辰涂料有限公司 | Dry-powder latex paint |
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| CN105238102A (en) * | 2015-09-23 | 2016-01-13 | 界首市通泽建材销售有限公司 | Powdery wall coating |
| CN107254223A (en) * | 2017-06-16 | 2017-10-17 | 河南兴安新型建筑材料有限公司 | A kind of dry powder emulsion paint and preparation method thereof |
| CN110605057B (en) * | 2019-09-23 | 2020-09-15 | 长兴金丰建材有限公司 | Production device and method of emulsion paint for building wall |
| CN116023814A (en) * | 2023-01-05 | 2023-04-28 | 广东嘉宝莉科技材料有限公司 | Dry powder emulsion paint and preparation method and application method thereof |
| CN116376446A (en) * | 2023-04-11 | 2023-07-04 | 广东嘉宝莉科技材料有限公司 | High-water-resistance dry powder emulsion paint and preparation method and application method thereof |
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| JP2001019906A (en) * | 1999-07-07 | 2001-01-23 | Nippon Paint Co Ltd | Powder toning method, composite powder coating material composition and powder coating method |
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| CN101139473A (en) * | 2006-09-08 | 2008-03-12 | 上海奥宇纳米净化技术有限公司 | Nano inner-exterior wall emulsion paint and preparation method thereof |
| CN101302366A (en) * | 2007-05-11 | 2008-11-12 | 辉旭微粉技术（上海）有限公司 | Metal powder coating, preparation thereof and coating metallic plate |
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Inventor after: Li Xingyi Inventor before: Chen Qing Inventor before: Zeng Juntang Inventor before: Liu Shibing |
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Effective date of registration: 20170523 Address after: 528000 Guangdong Province, Foshan city Shunde District Lunjiao Chung Hei Village Road intensive industrial zone, Lai Hing (greenart recycling discarded Industrial Co., No. 2, No. 5 building) Patentee after: GUANGDONG SHUNDE STONE COLOR COATING LTD. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170523 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 610091, Sichuan, Chengdu province Qingyang dragon industrial port, east sea four Patentee before: CHENDU NEW KELI CHEMICAL SCIENCE Co.,Ltd. CHINA |
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