CN101735541A - Environmental-friendly type emulsion for heat insulating material and preparation method thereof - Google Patents
Environmental-friendly type emulsion for heat insulating material and preparation method thereof Download PDFInfo
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- CN101735541A CN101735541A CN200910198608A CN200910198608A CN101735541A CN 101735541 A CN101735541 A CN 101735541A CN 200910198608 A CN200910198608 A CN 200910198608A CN 200910198608 A CN200910198608 A CN 200910198608A CN 101735541 A CN101735541 A CN 101735541A
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Abstract
The invention provides environmental-friendly type emulsion for a heat insulating material and preparation method thereof, belonging to the technical field of aqueous adhesives. The preparation method comprises the following steps of: dissolving a compound emulsifying agent and sodium bicarbonate in deionized water, adding polymerizing monomers and stirring to pre-emulsify the monomers; adding pre-emulsified liquid into a reaction kettle, heating up and adding a persulfate solution to initiate polymerization until no monomers flow back; dropwise adding residual pre-emulsified liquid and an initiator into the reaction kettle, heating up, preserving heat and cooling; and adding ammonia water, a preservative, a defoaming agent, and the like and stirring to obtain the environmental-friendly type emulsion. The emulsion prepared by the method has the biggest characteristic of no containing of harmful substances such as formaldehyde, APEO (alkylphenol ethoxylates), and the like. An adhesive prepared from the emulsion has good ageing resistance, water proofing, alkali resistance, mechanical stability, elasticity and tensile and bonding strength.
Description
Technical field
The invention belongs to the aqueous binder technical field, relate to a kind of environmental-friendly type emulsion for heat insulating material and preparation method thereof, this emulsion is mainly used in the bonding of lagging material.
Technical background
Exterior-wall heat insulation divides two kinds of external wall outer insulation and exterior wall internal insulations, with external wall outer insulation bigger superiority is arranged at present.The external wall outer insulation material is made up of tack coat, thermal insulation layer, protective layer and finish coat, and its heat preservation principle is that the thermal insulation layer styrofoam is pasted in the basic unit with tackiness agent, and the outside forms external wall heat insulation system with combustion-proof glass fiber net and the protection of cement-bonded rubber cement.Exterior-wall heat insulation can significantly reduce the use energy consumption of building and improve the building and comfortable for living.Specify one of building energy conservation new technology of popularization as country, External Walls Heating Insulation particularly obtains promotion and application energetically at northern area in China.Along with the widespread use of External Walls Heating Insulation, the demand of lagging material with tackiness agent presented a rapidly rising trend in construction industry.
The tackiness agent of producing mostly contains formaldehyde and APEO at present.APEO is studied widely and is proved ecotope potential harm, and simplified summary becomes following four aspects: toxicity, biological degradation slowly, have female effect and distortion property, produce harmful side product in process of production.Some countries of Europe just formulated regulation limitations production and use APEO in 1976, European Union is early than just issuing that the 2003/53/EC instruction clearly stipulated limiting the quantity of of APEO in the outlet textiles on June 18th, 2003.In the two high product register publicities of coating in 2008 and mineral dye, the building coating that contains APEO is classified high pollution in 2008, high environmental risk product as, and scholarly forecast will forbid using the product that contains APEO in building coating in 2～3 years.Therefore, preparing environment-friendly type tackiness agent formaldehydeless, no APEO is the urgent problem that the building heat preservation field faces, and the key for preparing above-mentioned tackiness agent is to select environmental-friendly type emulsion formaldehydeless, no APEO for use.
The present invention proposes a kind of formaldehydeless, do not contain novel environment-friendly emulsion of APEO and preparation method thereof.This method has not only solved the problem of formaldehyde in the common environmental-friendly type emulsion, APEO environmental pollution, this emulsion has compatibleness and the dispersiveness with the cement excellence simultaneously, the tackiness agent that is mixed with this emulsion and cement, coarse whiting etc. has good freeze-thawing resistant, water tolerance, ageing resistance, snappiness and excellent bonding strength, and it is mainly used in the bonding of lagging material.
Summary of the invention
One of purpose of the present invention has been to provide a kind of environmental-friendly type emulsion that does not contain formaldehyde, APEO.
Two of purpose of the present invention has been to provide a kind of preparation method of environmental-friendly type emulsion for heat insulating material, and this preparation technology is simple, and lower cost is very easily carried out suitability for industrialized production.
A kind of environmental-friendly type emulsion for heat insulating material is characterized in that being made by mass percentage by following material:
Compound emulsifying agent 1%～4% polymerization single polymerization monomer 20%～50%
Sodium bicarbonate 0.5%～4% deionized water 40%～80%
Persulfate initiator 0.5%～3%
Further, the present invention also has following technical characterictic:
Described compound emulsifying agent is the compound system of anionic emulsifier and nonionic emulsifying agent.
Anionic emulsifier in the described compound emulsifying agent is a kind of in sodium alkyl sulfate, sodium alkyl benzene sulfonate or the alkyl sodium sulfonate.
Nonionic emulsifying agent in the described compound emulsifying agent is a kind of in fatty alcohol-polyoxyethylene ether (AEO series), APG (APG) or the sapn (SPAN) of natural fat polyoxyethylenated alcohol (FAEO), side chain.
Described environmental-friendly type emulsion is characterized in that: described polymerization single polymerization monomer comprises main monomer, auxiliary monomer and function monomer.
In the described polymerization single polymerization monomer, it is 92%～99% that main monomer accounts for the total monomer quality ratio, and it is 0.5%～3% that auxiliary monomer accounts for the total monomer quality ratio, and it is 0.5%～4% that function monomer accounts for the total monomer quality ratio.
Main monomer in the described polymerization single polymerization monomer be four in vinylbenzene, methyl methacrylate, butyl acrylate or the Isooctyl acrylate monomer at least its two.
Auxiliary monomer in the described polymerization single polymerization monomer is a kind of in methacrylic acid or the vinylformic acid.
Functional monomer in the described polymerization single polymerization monomer is a kind of in glycidyl methacrylate, 3-methacryloxypropyl trimethoxy silane, 3-methacryloxypropyl triethoxyl silane or the methacrylamido ethyl ethylidene-urea.
Described initiator is a persulphate, a kind of in Potassium Persulphate in the persulphate or the ammonium persulphate.
Described environmental-friendly type emulsion is characterized in that wherein fluoropolymer resin content 40%～60%, emulsifier content 1%～5%, total solid content 41%～65%.
A kind of preparation method of environmental-friendly type emulsion for heat insulating material, it can be realized as follows:
(1). with compound emulsifying agent, sodium bicarbonate is dissolved in the deionized water, adds polymerization single polymerization monomer and stirs the pre-emulsification of 30min, and is standby; (2). add the pre-emulsion account for reactor volume 1/5～1/4 in reactor, be warming up to 75 ℃～85 ℃, add the persulfate solution initiated polymerization, reaction 20min～50min is not till have a monomers flow back; (3). temperature is controlled between 75 ℃～85 ℃, remaining pre-emulsion and initiator solution are dropped in the aforesaid reaction vessel, and the control rate of addition drips off it in 1h～3h; (4). dropwise, be warming up to 84 ℃～89 ℃, insulation reaction 1h～2h makes it be cooled to 30 ℃～50 ℃ then, adds ammoniacal liquor and regulates about pH to 8.5, and add sanitas and defoamer etc., and reinforced finishing stirs, and forms described environmental-friendly type emulsion.
The emulsion physical and chemical parameter of the present invention's preparation is as follows:
(1) composition .... high-molecular copolymer
(2) outward appearance .... milky white liquid
(3) solids content ... .41%～65%
(4) viscosity (No. 4 rotors, 60rpm, 25 ℃) ... .200～2,000 centipoises
(5) pH value (25 ℃) ... .7.5～8.5
(6) particle dia ... .0.2～0.4 μ m
(7) glass transition temp ... .-15 ℃ approximately
(8) minimum film-forming temperature ....＜1 ℃
Advantage of the present invention:
(1). product has the feature of environmental protection: this product adopts the environment protective emulsive agent, and the product that makes does not pollute environment.
(2). product has very high cohesive strength: this product adopts advanced high molecular polymerization Technology, by in prescription, having added cross-linking monomer, strengthened the self-crosslinking of product, strengthened cohesive strength greatly thereby when tackiness agent immerses base material, can be cross-linked to form reticulated structure with the base material generation.
(3). have retractility preferably: in formulating of recipe, reasonably regulate ratio soft, hard monomer, make the existing higher bonding strength of product that good elasticity and snappiness be arranged again.
(4). have higher water tolerance: select suitable hydrophobic monomer and cross-linking monomer, in film process, make and carry out crosslinkedly between the active group, improve the water tolerance of filmogen.
(5). have stronger weather resisteant: select domestic advanced person's emulsion polymerization technique route,,, minimum film-forming temperature is reduced between-8 ℃～-20 ℃, with the geographic climatic characteristic that seasons oneself to cold to reduce second-order transition temperature by the adjusting process prescription.
(6). this emulsion aims at exterior wall heat-preserving system and designs, and is the cement additive polymer of developing for modified cement, and it has compatibleness and dispersiveness with the cement excellence.
(7). lagging material of the present invention is simple with the preparation technology of emulsion with the environment-friendly type lagging material, and lower cost is very easily carried out suitability for industrialized production.
Specific implementation method
Below by specific embodiment synthetic method of the present invention is further elaborated.
Embodiment one
Polymerization formula is:
Fatty alcohol-polyoxyethylene ether (AEO-25) 3.3g of vinylbenzene 10.8g, butyl acrylate 63.5g, vinylformic acid 0.9g, methyl methacrylate 27.2g, glycidyl methacrylate 0.6g, side chain, sodium lauryl sulphate (SDS) 2.9g, Potassium Persulphate 3.5g, sodium bicarbonate 4g, deionized water 180g.
Polymerization technique is:
(1). with compound emulsifying agent, sodium bicarbonate is dissolved in the deionized water, adds polymerization single polymerization monomer and stirs the pre-emulsification of 30min, and is standby;
(2). add the pre-emulsion account for reactor volume 1/5 in reactor, be warming up to 75 ℃, add the potassium persulfate solution initiated polymerization, reaction 40min is not till have a monomers flow back;
(3). temperature is controlled at 75 ℃, remaining pre-emulsion and initiator solution are dropped in the aforesaid reaction vessel, and the control rate of addition drips off it in 3h;
(4). dropwise, be warming up to 85 ℃, insulation reaction 1h makes it be cooled to 30 ℃ then, adds ammoniacal liquor and regulates about pH to 8.0, and add sanitas and defoamer etc., and reinforced finishing stirs, and forms described environmental-friendly type emulsion.
This emulsion and sand-cement slurry consistency are good, and the glue-line water-tolerant after the curing has elasticity preferably, lower viscosity.
Embodiment two
Polymerization formula is:
Fatty alcohol-polyoxyethylene ether (AEO-25) 3.0g of butyl acrylate 63.5g, methacrylic acid 0.9g, methyl methacrylate 36.2g, 3-methacryloxypropyl trimethoxy silane 1.8g, side chain, sodium lauryl sulphate (SDS) 2.9g, ammonium persulphate 3.5g, sodium bicarbonate 4g, deionized water 180g.
Polymerization technique is:
(1). with compound emulsifying agent, sodium bicarbonate is dissolved in the deionized water, adds polymerization single polymerization monomer and stirs the pre-emulsification of 30min, and is standby;
(2). add the pre-emulsion account for reactor volume 1/4 in reactor, be warming up to 80 ℃, add ammonium persulfate solution initiated polymerization, reaction 30min is not till have a monomers flow back;
(3). temperature is controlled at 80 ℃, remaining pre-emulsion and initiator solution are dropped in the aforesaid reaction vessel, and the control rate of addition drips off it in 2.5h;
(4). dropwise, be warming up to 80 ℃, insulation reaction 1.5h makes it be cooled to 40 ℃ then, adds ammoniacal liquor and regulates pH to 8.3, and add sanitas and defoamer etc., and reinforced finishing stirs, and forms described environmental-friendly type emulsion.
The emulsion that this formulation obtains good with the sand-cement slurry consistency, it is higher to solidify the back coating hardness, and weathering resistance is better.
Embodiment three
Polymerization formula is:
Fatty alcohol-polyoxyethylene ether (AEO-25) 3.0g of vinylbenzene 12.8g, butyl acrylate 70.5g, vinylformic acid 1.8g, methyl methacrylate 20.2g, Isooctyl acrylate monomer 3.5g, 3-methacryloxypropyl triethoxyl silane 2.7g, side chain, sodium lauryl sulphate (SDS) 2.9g, ammonium persulfate 3.5g, sodium bicarbonate 4g, deionized water 180g.
Polymerization technique is:
(1). with compound emulsifying agent, sodium bicarbonate is dissolved in the deionized water, adds polymerization single polymerization monomer and stirs the pre-emulsification of 30min, and is standby;
(2). add the pre-emulsion account for reactor volume 1/5 in reactor, be warming up to 85 ℃ and add ammonium persulfate solution initiated polymerizations, reaction 20min is not till have a monomers flow back;
(3). temperature is controlled at 80 ℃, remaining pre-emulsion and initiator solution are dropped in the aforesaid reaction vessel, and the control rate of addition drips off it in 2h;
(4). dropwise, be warming up to 87 ℃, insulation reaction 2h makes it be cooled to 50 ℃ then, adds ammoniacal liquor and regulates pH to 8.5, and add sanitas and defoamer etc., and reinforced finishing stirs, and forms described environmental-friendly type emulsion.
Emulsion that this formulation obtains and sand-cement slurry consistency are good, solidify back coating good springiness, the unit elongation height.
Embodiment four
Polymerization formula is:
Fatty alcohol-polyoxyethylene ether (AEO-25) 3.0g of vinylbenzene 2.0g, butyl acrylate 63.5g, vinylformic acid 3.0g, methyl methacrylate 27.2g, Isooctyl acrylate monomer 3.5g, methacrylamido ethyl ethylidene-urea 4.1g, side chain, sodium lauryl sulphate (SDS) 2.9g, ammonium persulphate 3.5g, sodium bicarbonate 4g, deionized water 180g.
Polymerization technique is:
(1). with compound emulsifying agent, sodium bicarbonate is dissolved in the deionized water, adds polymerization single polymerization monomer and stirs the pre-emulsification of 30min, and is standby;
(2). add the pre-emulsion account for reactor volume 1/4 in reactor, be warming up to 80 ℃ and add ammonium persulfate solution initiated polymerizations, reaction 50min is not till have a monomers flow back;
(3). temperature is controlled at 85 ℃, remaining pre-emulsion and initiator solution are dropped in the aforesaid reaction vessel, and the control rate of addition drips off it in 1.5h;
(4). dropwise, be warming up to 89 ℃, insulation reaction 1h makes it be cooled to 45 ℃ then, adds ammoniacal liquor and regulates pH to 8.4, and add sanitas and defoamer etc., and reinforced finishing stirs, and forms described environmental-friendly type emulsion.
Emulsion that this formulation obtains and sand-cement slurry consistency are good, solidify the back coating and have better weather and excellent sticking power.
More than be the description of this invention and non-limiting, based on other embodiment of inventive concept, all among protection scope of the present invention.
Claims (12)
1. environmental-friendly type emulsion for heat insulating material is characterized in that it being the emulsion that is mixed with by mass percentage by following material:
Compound emulsifying agent 1%～4%
Polymerization single polymerization monomer 20%～50%
Sodium bicarbonate 0.5%～4%
Deionized water 40%～80%
Persulfate initiator 0.5%～3%
2. environmental-friendly type emulsion for heat insulating material according to claim 1 is characterized in that: described compound emulsifying agent is the compound system of anionic emulsifier and nonionic emulsifying agent.
3. environmental-friendly type emulsion for heat insulating material according to claim 2 is characterized in that: the anionic emulsifier in the compound emulsifying agent is a kind of in sodium alkyl sulfate, sodium alkyl benzene sulfonate or the alkyl sodium sulfonate.
4. environmental-friendly type emulsion for heat insulating material according to claim 2 is characterized in that: the nonionic emulsifying agent in the compound emulsifying agent is a kind of in fatty alcohol-polyoxyethylene ether (AEO series), APG (APG) or the sapn (SPAN) of natural fat polyoxyethylenated alcohol (FAEO), side chain.
5. environmental-friendly type emulsion for heat insulating material according to claim 1 is characterized in that: described polymerization single polymerization monomer comprises main monomer, auxiliary monomer and function monomer.
6. environmental-friendly type emulsion for heat insulating material according to claim 5, it is characterized in that: in the described polymerization single polymerization monomer, it is 92%～99% that main monomer accounts for the total monomer quality ratio, it is 0.5%～3% that auxiliary monomer accounts for the total monomer quality ratio, and it is 0.5%～4% that function monomer accounts for the total monomer quality ratio.
7. environmental-friendly type emulsion for heat insulating material according to claim 5 is characterized in that: the main monomer in the described polymerization single polymerization monomer be four in vinylbenzene, methyl methacrylate, butyl acrylate or the Isooctyl acrylate monomer at least its two.
8. environmental-friendly type emulsion for heat insulating material according to claim 5 is characterized in that: the auxiliary monomer in the described polymerization single polymerization monomer is a kind of in methacrylic acid or the vinylformic acid.
9. environmental-friendly type emulsion for heat insulating material according to claim 5 is characterized in that: the functional monomer in the described polymerization single polymerization monomer is a kind of in glycidyl methacrylate, 3-methacryloxypropyl trimethoxy silane, 3-methacryloxypropyl triethoxyl silane or the methacrylamido ethyl ethylidene-urea.
10. environmental-friendly type emulsion for heat insulating material according to claim 1 is characterized in that: described initiator is a persulphate.
11. environmental-friendly type emulsion for heat insulating material according to claim 10 is characterized in that: described initiator is a kind of in Potassium Persulphate in the persulphate or the ammonium persulphate.
12. the preparation method of an environmental-friendly type emulsion for heat insulating material, the preparation process of this emulsion is as follows:
(1). compound emulsifying agent, sodium bicarbonate are dissolved in the deionized water, add polymerization single polymerization monomer and stir the pre-emulsification of 30min, standby;
(2). add in reactor and account for molten long-pending 1/5～1/4 the pre-emulsion of reactor, be warming up to 75 ℃～85 ℃, add the persulfate solution initiated polymerization, reaction 20min～50min is not till have a monomers flow back;
(3). temperature is controlled between 75 ℃～85 ℃, remaining pre-emulsion and initiator solution are dropped in the aforesaid reaction vessel, and the control rate of addition drips off it in 1h～3h;
(4). dropwise, be warming up to 84 ℃～89 ℃, insulation reaction 1h～2h makes it be cooled to 30 ℃～50 ℃ then, adds ammoniacal liquor and regulates about pH to 8.5, and add sanitas and defoamer etc., and reinforced finishing stirs, and forms described environmental-friendly type emulsion.
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Cited By (11)
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| CN102535011A (en) * | 2012-02-23 | 2012-07-04 | 昆山胜昱无纺布有限公司 | Production process of environment-friendly nonwoven fabric |
| CN102924646A (en) * | 2012-12-03 | 2013-02-13 | 陕西科技大学 | Preparation method of waterproof and whiting-resistant silicon-acrylic composite emulsion for interior wall latex coatings |
| CN103665251A (en) * | 2012-09-12 | 2014-03-26 | 上海保立佳化工有限公司 | Preparation method of anti-contamination polymer |
| CN103724520A (en) * | 2013-12-31 | 2014-04-16 | 汕头市大千高新科技研究中心有限公司 | Styrene-acrylic emulsion for building coating and preparation method of styrene-acrylic emulsion |
| CN104194491A (en) * | 2014-09-26 | 2014-12-10 | 苏州中亚油墨有限公司 | Method for preparing novel aqueous ink |
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| CN105367695A (en) * | 2014-08-18 | 2016-03-02 | 齐鲁工业大学 | High-temperature-curable one-component epoxy-modified acrylate emulsion |
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| CN108822241A (en) * | 2018-06-07 | 2018-11-16 | 华东理工大学 | A kind of preparation method of environment-friendly type wet strength agent |
| CN110028847A (en) * | 2019-04-04 | 2019-07-19 | 江苏科技大学 | A kind of waterproof oil colour water-base resin and its preparation method and application |
| CN115058219A (en) * | 2022-07-07 | 2022-09-16 | 联碳高分子新材料(广东)有限公司 | Strong-effect anti-drop water-resistant ceramic tile back adhesive emulsion and preparation method thereof |
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| CN102535011A (en) * | 2012-02-23 | 2012-07-04 | 昆山胜昱无纺布有限公司 | Production process of environment-friendly nonwoven fabric |
| CN103665251A (en) * | 2012-09-12 | 2014-03-26 | 上海保立佳化工有限公司 | Preparation method of anti-contamination polymer |
| CN103665251B (en) * | 2012-09-12 | 2016-08-24 | 上海保立佳化工股份有限公司 | A kind of preparation method of soil resistant polymers |
| CN102924646A (en) * | 2012-12-03 | 2013-02-13 | 陕西科技大学 | Preparation method of waterproof and whiting-resistant silicon-acrylic composite emulsion for interior wall latex coatings |
| CN102924646B (en) * | 2012-12-03 | 2015-07-08 | 陕西科技大学 | Preparation method of waterproof and whiting-resistant silicon-acrylic composite emulsion for interior wall latex coatings |
| CN103724520A (en) * | 2013-12-31 | 2014-04-16 | 汕头市大千高新科技研究中心有限公司 | Styrene-acrylic emulsion for building coating and preparation method of styrene-acrylic emulsion |
| CN103724520B (en) * | 2013-12-31 | 2016-02-03 | 汕头市大千高新科技研究中心有限公司 | Benzene emulsion of a kind of building coating and preparation method thereof |
| CN105367695A (en) * | 2014-08-18 | 2016-03-02 | 齐鲁工业大学 | High-temperature-curable one-component epoxy-modified acrylate emulsion |
| CN104194491A (en) * | 2014-09-26 | 2014-12-10 | 苏州中亚油墨有限公司 | Method for preparing novel aqueous ink |
| CN104804118A (en) * | 2015-04-24 | 2015-07-29 | 西安天亿胶粘材料有限公司 | Method for preparing acrylate emulsion adhesive with high solid content and strong alkali resistance |
| CN104804118B (en) * | 2015-04-24 | 2018-05-15 | 西安天亿胶粘材料有限公司 | A kind of preparation method of high solids content and strong alkali resistance acrylic acid ester emulsion adhesive |
| CN106117420A (en) * | 2016-07-26 | 2016-11-16 | 同济大学 | A kind of modified cement mortar styrene-acrylic emulsion and preparation method thereof |
| CN106117420B (en) * | 2016-07-26 | 2018-07-03 | 同济大学 | A kind of modified cement mortar styrene-acrylic emulsion and preparation method thereof |
| CN108822241A (en) * | 2018-06-07 | 2018-11-16 | 华东理工大学 | A kind of preparation method of environment-friendly type wet strength agent |
| CN110028847A (en) * | 2019-04-04 | 2019-07-19 | 江苏科技大学 | A kind of waterproof oil colour water-base resin and its preparation method and application |
| CN110028847B (en) * | 2019-04-04 | 2021-07-13 | 江苏科技大学 | Water-based resin for waterproof oil painting pigment and preparation method and application thereof |
| CN115058219A (en) * | 2022-07-07 | 2022-09-16 | 联碳高分子新材料(广东)有限公司 | Strong-effect anti-drop water-resistant ceramic tile back adhesive emulsion and preparation method thereof |
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Application publication date: 20100616 |