CN101891859A - Elastic styrene acrylic emulsion for polymer cement waterproof coating and preparation method thereof - Google Patents
Elastic styrene acrylic emulsion for polymer cement waterproof coating and preparation method thereof Download PDFInfo
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- CN101891859A CN101891859A CN2009100593152A CN200910059315A CN101891859A CN 101891859 A CN101891859 A CN 101891859A CN 2009100593152 A CN2009100593152 A CN 2009100593152A CN 200910059315 A CN200910059315 A CN 200910059315A CN 101891859 A CN101891859 A CN 101891859A
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Abstract
The invention relates to elastic styrene acrylic and elastic acrylate emulsions and a polymerization method thereof, in particular to an elastic styrene acrylic emulsion for a polymer cement waterproof coating and a preparation method thereof. The prepared emulation comprises the components of fatty alcohol polyoxyethylene ether sulfate, fatty alcohol polyoxyethylene ether (methyl) acrylate, n-butyl acrylate, styrene, N-methyl methacrylate, AMPS and N-hydroxymethyl acrylamide. Different from a common waterproof emulsion, the emulsion has the advantages of remarkably reducing the using amount of an emulsifier and a hydrophilic monomer, improving the stability of the polymer emulsion, and improving the membrane formation property of the polymer emulsion and the toughness, strength and waterproof property of a coating.
Description
Technical field
The present invention relates to elastic styrene acrylic, elastic acrylate class emulsion and polymerization process thereof, be specially a kind of elastic styrene acrylic emulsion for polymer cement waterproof coating and preparation method thereof.
Background technology
Polymer cement waterproof paint has the premium properties of cement and polymkeric substance concurrently, is the combination of two kinds of materials, not only has excellent water resistance, but also has good construction performance, thereby be widely used in the buildings waterproof field.For polymer cement waterproof paint, the key factor that determines its quality is the polymer emulsion that is used for preparing waterproof paint, require emulsion not only will have good film forming properties, toughness, water resistance, and the more important thing is to have excellent cement consistency.The synthetic method that the documents and materials of relevant polymer cement waterproof emulsion are reported, its emulsification system all is that employing negatively charged ion and nonionic emulsifying agent are composite basically, mainly be to adopt sodium lauryl sulphate or Sodium dodecylbenzene sulfonate and alkylphenol polyoxyethylene or fatty alcohol-polyoxyethylene ether collocation, the ratio by the increase nonionic emulsifying agent improve emulsion Calcium ion stability and with the consistency of cement.Adopt this emulsification system to come synthetic polymer cement water-proof emulsion unavoidably to have such problem, that is exactly, in order to improve the consistency of emulsion and cement, must improve the ratio of nonionic emulsifying agent in the emulsification system, meanwhile the consumption of emulsifying agent also increases thereupon, because only in this way could ensure the speed and the polymerization stability of letex polymerization preferably.Numerous known, the increase meeting of emulsifying agent consumption produces negative influence to the film forming properties of emulsion and toughness, intensity and the water tolerance of glued membrane etc., also can have influence on the performance of final polymer cement waterproof paint certainly.Certainly also have minority to adopt anionic and nonionic emulsifying agent and the composite emulsification system of nonionic emulsifying agent, but the selection of its anionic and nonionic emulsifying agent mainly is based on and contain hypoxemia Vinyl Ether segmental fatty alcohol polyoxyethylene ether sulfate and alkylphenol polyoxyethylene vitriol.Adopt these systems, though can reduce the consumption of emulsifying agent to a certain extent, but this problem also fails fundamentally to be resolved, how when ensureing the excellent cement consistency of emulsion, further reduce the consumption of emulsifying agent, thereby improving the over-all properties of emulsion and final coating, is the problem that needs solution in a hurry.In addition, when preparation polymer cement waterproof emulsion, need select suitable wetting ability function monomer to participate in copolymerization, the introducing of hydrophilic monomer is not only for polymerization that improves emulsion self and stability in storage, prior in order to strengthen the Calcium ion stability of polymer emulsion, improve the consistency of polymer emulsion and cement.Report adopts and contains the monomer of carboxyl or amide group as the wetting ability function monomer in numerous documents and materials, this is the method that is in daily use in the emulsion of some other purposes, also be very effective means, but in the preparation of polymer cement waterproof emulsion, they but are not very suitable wetting ability function monomers.The functional monomer that contains carboxyl is under the strong alkaline condition of cement, and the emulsion thickening is obvious, can cause the generation of demulsifying phenomenon under the serious situation; The emulsion that contains simple amide-containing functional group, though under the strong basicity system of cement, the situation that thickening, breakdown of emulsion can not occur, but since amide group and cement component reactive force a little less than, be unfavorable for that generation is crosslinked between polymkeric substance inside or polymkeric substance and cement, thereby can have influence on the intensity and the toughness of finally filming.Therefore, select suitable wetting ability function monomer, prepare the polymer cement waterproof emulsion, when guaranteeing that emulsion and cement have superior compatibility, make can produce between the polymer cement system appropriately crosslinked, improving coating strength and flexible purpose thereby reach, is that another has problem to be solved.
Summary of the invention
The present invention is directed to above-mentioned technical problem, provide a kind of and be suitable for as polymer cement waterproof paint, flexible water putty and cracking resistance packing material elastic styrene acrylic emulsion for polymer cement waterproof coating of building field and preparation method thereof.
The concrete technical scheme of the present invention is as follows:
The emulsion composition that is equipped with is: fatty alcohol polyoxyethylene ether sulfate quality percentage composition is 0.1%～0.5%, fatty alcohol-polyoxyethylene ether (methyl) acrylate quality percentage composition is 0.1%～0.5%, the quality percentage composition of n-butyl acrylate is 30%～40%, vinylbenzene quality percentage composition is 10%～20%, N-methyl methacrylate quality percentage composition is 0～10%, AMPS and N hydroxymethyl acrylamide quality percentage composition are all 0.1%～1%, deionized water 29～60%.
Steps A: in container, add earlier deionized water, AEO (9) SO
4The methacrylic ester of Na, AEO (9);
Step B: dropwise addition of acrylic acid butyl ester and cinnamic mix monomer in flask then at the uniform velocity dropwise about 30min;
Step C: AMPS is dissolved in the deionized water, transfers PH to neutral, add N hydroxymethyl acrylamide again with yellow soda ash, treat dissolving fully after, add in the flask, continue to stir 10 minutes, stand-by;
Step D: deionized water is warming up to 85 ℃, adds 10% Sodium Persulfate solution;
Step e: drip with 2.5% Sodium Persulfate solution, temperature of reaction is controlled at 84 ℃～86 ℃, dropwise and under temperature of reaction, continue reaction 1 hour, be warming up to 90 ℃ of insulation 30min, be cooled to 75 ℃, drip 2% tertbutyl peroxide and the remaining monomer of 2% aqueous ascorbic acid removal simultaneously in half hour, be cooled to an amount of 5% ammoniacal liquor of adding below 50 ℃ and regulate pH value, supply Yu Shui to total amount to neutrality.
Fatty Alcohol(C12-C14 and C12-C18) is meant the Fatty Alcohol(C12-C14 and C12-C18) with 12～18 carbon atoms in the fatty alcohol polyoxyethylene ether sulfate, and the Soxylat A 25-7 chain length is 9～20, and vitriol is amine salt, sodium salt or sylvite, and is special in AEO (9) SO
4NH
4, AEO (9) SO
4Na, AEO (15) SO
4NH
4, AEO (15) SO
4Na, O (9) SO
4NH
4, O (9) SO
4Na, O (15) SO
4NH
4, O (15) SO
4Na, in emulsion, its quality percentage composition is 0.1%～0.5%.
Fatty Alcohol(C12-C14 and C12-C18) is meant the Fatty Alcohol(C12-C14 and C12-C18) with 12～18 carbon atoms in fatty alcohol-polyoxyethylene ether (methyl) acrylate, the Soxylat A 25-7 chain length is 4～20, special in AEO (9) (methyl) acrylate, AEO (15) (methyl) acrylate, O (9) (methyl) acrylate, O (15) (methyl) acrylate etc., in emulsion, its quality percentage composition is 0.1%～0.5%.
The invention has the advantages that:
Different with general water-proof emulsion, this emulsion emulsification system when polymerization adopt uniquely have high Soxylat A 25-7 segmental fatty alcohol polyoxyethylene ether sulfate and polymerisable emulsifier of the same type composite, the wetting ability function monomer then adopts AMPS and N hydroxymethyl acrylamide composite, can obviously reduce the consumption of emulsifying agent and hydrophilic monomer, improve STABILITY OF POLYMER EMULSION, improve the toughness of the film forming properties and the glued membrane of polymer emulsion, intensity and water resistance, when configuration cement polymer emulsion waterproofing paint, have the cement consistency more excellent more than like product.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Specific embodiment 1
Pre-emulsification: in the 500ml flask, add 80ml deionized water, 7gAEO (9) SO
4The methacrylic ester of Na (30%), 0.5gAEO (9) drips 194g butyl acrylate and the cinnamic mix monomer of 77.5g then in flask, at the uniform velocity dropwise about 30min; 2.5gAMPS is dissolved in the 10g deionized water, transfers PH to neutral, add the 2gN-n-methylolacrylamide again with yellow soda ash, treat dissolving fully after, add in the flask, continue to stir 10 minutes, stand-by.
Polymerization: in the 1000ml flask, add the 80g deionized water, be warming up to 85 ℃, add 7.5g (10%) Sodium Persulfate solution, the pre-emulsion that adds total amount 5% after 5 minutes carries out seeding polymerization, seeding polymerization was finished in 15 minutes, tangible blue light appears, the bottle wall refluxes and disappears, begin to drip remaining pre-emulsion and 30g (2.5%) Sodium Persulfate solution, dropwised simultaneously in 4 hours, temperature of reaction is controlled at 84 ℃～86 ℃, dropwise and under temperature of reaction, continue reaction 1 hour, be warming up to 90 ℃ of insulation 30min, be cooled to 75 ℃, drip 7.5g (2%) tertbutyl peroxide and the remaining monomer of 7.5g (2%) aqueous ascorbic acid removal simultaneously in half hour, be cooled to and add an amount of 5% ammoniacal liquor adjusting pH value below 50 ℃ to neutral, add the defoamer of total amount about 0.1% and 0.05% anticorrosion and bactericidal agent again, supply Yu Shui to total amount 500g, reaction finishes.
Final every technical indicator of emulsion such as table 1:
Table 1
| Outward appearance | Oyster white is blue light slightly |
| Solid content, % | 56％ |
| The pH value | 7.0-8.0 |
| Viscosity (CP) | 500-2000 |
| Median size (nm) | 100-300 |
| Second-order transition temperature | Be lower than-8 ℃ |
Be mixed with the technical indicator such as the table 2 of polymer cement waterproof paint:
Table 2
Claims (4)
1. elastic styrene acrylic emulsion for polymer cement waterproof coating and preparation method thereof, it is characterized in that the emulsion composition that is equipped with is: fatty alcohol polyoxyethylene ether sulfate quality percentage composition is 0.1%～0.5%, fatty alcohol-polyoxyethylene ether (methyl) acrylate quality percentage composition is 0.1%～0.5%, the quality percentage composition of n-butyl acrylate is 30%～40%, vinylbenzene quality percentage composition is 10%～20%, N-methyl methacrylate quality percentage composition is 0～10%, AMPS and N hydroxymethyl acrylamide quality percentage composition are all 0.1%～1%, deionized water 29～60%.
2. elastic styrene acrylic emulsion for polymer cement waterproof coating and preparation method thereof may further comprise the steps:
Steps A: in container, add earlier deionized water, AEO (9) SO
4The methacrylic ester of Na, AEO (9);
Step B: dropwise addition of acrylic acid butyl ester and cinnamic mix monomer in flask then at the uniform velocity dropwise about 30min;
Step C: AMPS is dissolved in the deionized water, transfers PH to neutral, add N hydroxymethyl acrylamide again with yellow soda ash, treat dissolving fully after, add in the flask, continue to stir 10 minutes, stand-by;
Step D: deionized water is warming up to 85 ℃, adds 10% Sodium Persulfate solution;
Step e: drip with 2.5% Sodium Persulfate solution, temperature of reaction is controlled at 84 ℃～86 ℃, dropwise and under temperature of reaction, continue reaction 1 hour, be warming up to 90 ℃ of insulation 30min, be cooled to 75 ℃, drip 2% tertbutyl peroxide and the remaining monomer of 2% aqueous ascorbic acid removal simultaneously in half hour, be cooled to an amount of 5% ammoniacal liquor of adding below 50 ℃ and regulate pH value, supply Yu Shui to total amount to neutrality.
3. a kind of elastic styrene acrylic emulsion for polymer cement waterproof coating according to claim 1 and preparation method thereof, it is characterized in that: Fatty Alcohol(C12-C14 and C12-C18) is meant the Fatty Alcohol(C12-C14 and C12-C18) with 12～18 carbon atoms in the described fatty alcohol polyoxyethylene ether sulfate, the Soxylat A 25-7 chain length is 9～20, vitriol is amine salt, sodium salt or sylvite, is specially AEO (9) SO
4NH
4Or AEO (9) SO
4Na or AEO (15) SO
4NH
4Or AEO (15) SO
4Na or O (9) SO
4NH
4Or O (9) SO
4Na or O (15) SO
4NH
4Or O (15) SO
4Na, in emulsion, its quality percentage composition is 0.1%～0.5%.
4. a kind of elastic styrene acrylic emulsion for polymer cement waterproof coating according to claim 1 and preparation method thereof, it is characterized in that: Fatty Alcohol(C12-C14 and C12-C18) is meant the Fatty Alcohol(C12-C14 and C12-C18) with 12～18 carbon atoms in described fatty alcohol-polyoxyethylene ether (methyl) acrylate, the Soxylat A 25-7 chain length is 4～20, be AEO (9) (methyl) acrylate or AEO (15) (methyl) acrylate or O (9) (methyl) acrylate or O (15) (methyl) acrylate, in emulsion, its quality percentage composition is 0.1%～0.5%.
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| CN103183995A (en) * | 2013-03-18 | 2013-07-03 | 福建省利得彩环保科技有限公司 | Water-based paint composition |
| CN103382322A (en) * | 2013-07-01 | 2013-11-06 | 吴江市物华五金制品有限公司 | Waterproof coating for outer walls and preparation method thereof |
| CN103539411A (en) * | 2013-11-11 | 2014-01-29 | 苏州市姑苏新型建材有限公司 | Preparation technology of polymer cement waterproof coating |
| CN103539410A (en) * | 2013-11-11 | 2014-01-29 | 苏州市姑苏新型建材有限公司 | Novel polymer cement waterproof coating formula |
| CN103553426A (en) * | 2013-09-30 | 2014-02-05 | 周景天 | Preparation method of polymer and cement composite waterproof coating |
| CN103665250A (en) * | 2012-09-12 | 2014-03-26 | 上海保立佳化工有限公司 | Preparation method of environment-friendly acrylate copolymer emulsion |
| CN104193914A (en) * | 2014-08-18 | 2014-12-10 | 清华大学 | Polymer latex for oil-gas field casing cement paste and preparation method thereof |
| CN105218726A (en) * | 2015-10-17 | 2016-01-06 | 佛山市顺德区巴德富实业有限公司 | A kind of metalchelated waterborne styrene-acrylic emulsion and preparation method thereof |
| WO2016001256A1 (en) | 2014-07-01 | 2016-01-07 | Basf Se | A dispersion of (meth)acrylate copolymer containing a hydroxyalkyl (meth)acrylate functional monomer unit for flexible cementitious waterproofing materials |
| CN107973539A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of styrene-acrylic emulsion stabilizer, preparation method and application |
| US9988307B2 (en) | 2014-06-25 | 2018-06-05 | Rohm And Haas Company | Emulsion polymer two-component compositions for fast curing cementitious waterproofing membranes |
| CN110256011A (en) * | 2019-06-25 | 2019-09-20 | 北京宇阳泽丽防水材料有限责任公司 | A kind of polymer cement waterproof paint and preparation method thereof |
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| CN103665250A (en) * | 2012-09-12 | 2014-03-26 | 上海保立佳化工有限公司 | Preparation method of environment-friendly acrylate copolymer emulsion |
| CN103183995B (en) * | 2013-03-18 | 2016-01-06 | 福建省利得彩环保科技有限公司 | Water-based paint compositions |
| CN103183995A (en) * | 2013-03-18 | 2013-07-03 | 福建省利得彩环保科技有限公司 | Water-based paint composition |
| CN103382322B (en) * | 2013-07-01 | 2015-05-27 | 吴江华诚复合材料科技有限公司 | Waterproof coating for outer walls and preparation method thereof |
| CN103382322A (en) * | 2013-07-01 | 2013-11-06 | 吴江市物华五金制品有限公司 | Waterproof coating for outer walls and preparation method thereof |
| CN103553426A (en) * | 2013-09-30 | 2014-02-05 | 周景天 | Preparation method of polymer and cement composite waterproof coating |
| CN103539410A (en) * | 2013-11-11 | 2014-01-29 | 苏州市姑苏新型建材有限公司 | Novel polymer cement waterproof coating formula |
| CN103539411B (en) * | 2013-11-11 | 2015-02-25 | 苏州市姑苏新型建材有限公司 | Preparation technology of polymer cement waterproof coating |
| CN103539410B (en) * | 2013-11-11 | 2015-02-25 | 苏州市姑苏新型建材有限公司 | Novel polymer cement waterproof coating formula |
| CN103539411A (en) * | 2013-11-11 | 2014-01-29 | 苏州市姑苏新型建材有限公司 | Preparation technology of polymer cement waterproof coating |
| US9988307B2 (en) | 2014-06-25 | 2018-06-05 | Rohm And Haas Company | Emulsion polymer two-component compositions for fast curing cementitious waterproofing membranes |
| WO2016001256A1 (en) | 2014-07-01 | 2016-01-07 | Basf Se | A dispersion of (meth)acrylate copolymer containing a hydroxyalkyl (meth)acrylate functional monomer unit for flexible cementitious waterproofing materials |
| CN106715491A (en) * | 2014-07-01 | 2017-05-24 | 巴斯夫欧洲公司 | Dispersions of (meth) acrylate copolymers comprising hydroxyalkyl (meth) acrylate functional monomer units for flexible cementitious waterproofing materials |
| CN104193914A (en) * | 2014-08-18 | 2014-12-10 | 清华大学 | Polymer latex for oil-gas field casing cement paste and preparation method thereof |
| CN105218726A (en) * | 2015-10-17 | 2016-01-06 | 佛山市顺德区巴德富实业有限公司 | A kind of metalchelated waterborne styrene-acrylic emulsion and preparation method thereof |
| CN107973539A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of styrene-acrylic emulsion stabilizer, preparation method and application |
| CN110256011A (en) * | 2019-06-25 | 2019-09-20 | 北京宇阳泽丽防水材料有限责任公司 | A kind of polymer cement waterproof paint and preparation method thereof |
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Application publication date: 20101124 |