CN102432740A - Water-borne synthesis and preparation method for nano composite plastic paint - Google Patents
Water-borne synthesis and preparation method for nano composite plastic paint Download PDFInfo
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- CN102432740A CN102432740A CN2011102519264A CN201110251926A CN102432740A CN 102432740 A CN102432740 A CN 102432740A CN 2011102519264 A CN2011102519264 A CN 2011102519264A CN 201110251926 A CN201110251926 A CN 201110251926A CN 102432740 A CN102432740 A CN 102432740A
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Abstract
The invention discloses water-borne synthesis and a preparation method for nano composite plastic paint. The water-borne nano composite plastic paint is an organically-polymerized mixer and has performances such as high hardness, strong heat resistance, incapability of after back, high fullness and favorable water resistance and alcohol resistance; the preparation method comprises the following steps of: in the present of distilled water and an emulsifying agent, pre-emulsifying an alkenyl monomer into a shell-layer monomer mixer; in the presence of the distilled water and the emulsifying agent, carrying out a polymerization reaction on the alkenyl monomer and part of initiator to obtain a seed emulsion; adding a pre-emulsified shell-layer monomer, residual initiator and a functional monomer into the seed emulsion and carrying out a shell polymerization reaction; adding nano silicon dioxide dispersion body, a wetting dispersion agent, an antifoaming agent, a buffering agent and other addition agents in a core-shell emulsion by stirring; and filtering to obtain a finished product. The nano composite plastic paint has the advantages of no toxicity, environment friendliness, no odor, extremely-few volatile matters, high safety without combustibility or explosion, no yellowing, strong weather resistance, high hardness, wear resistance, impact resistance, chemical corrosion resistance and favorable adhesion.
Description
Technical field
The present invention relates to the technical field of nano paint, refer to that especially a kind of water-based of nano composite plastics coating is synthesized and preparation method thereof.
Background technology
Along with fast development of national economy, increasing people begins to advocate the low-carbon (LC) life.And in the life in the of paramount importance house decoration link, the feature of environmental protection of coating and functional be a part that all owners pay attention to most.Yet everything demand also all is the development of water-borne coatings has established certain basis.Existing nowadays people's standard of living improves day by day, in the process of finishing, more and more pays close attention to environmental protection with healthy, thereby has promoted the demand of water-borne coatings.Water-borne coatings with its quick solidifying, need not high temperature, do not produce bubble, advantage such as face good luster receives extensive attention day by day, and water-borne coatings can be saved ample resources; Fire hazard when eliminating construction; Reduced topsoil; Water-borne coatings only adopts a small amount of hypotoxicity alcohol ethers organic solvent, has improved operating environmental condition, and polluting, save resource to reducing has significant effect.
Yet the water-borne coatings of selling does not in the market also reach the performance of solvent based coating on performance index such as water tolerance, hardness, gloss, and it is poor to exist the dispersion stabilization that resists strong mechanicals efforts, a series of problems such as the poor water resistance of filming.How to address these problems, further improve the performance of water-borne coatings and the direction that index has become the research and development of scientific and technical personnel's emphasis.
Summary of the invention
The water-based of a kind of nano composite plastics coating of the present invention is synthetic and preparation method thereof, and described water nano composite plastic coating is a kind of mixture of organic polymer; Have hardness height, thermotolerance by force, do not after-tack, fullness ratio is high and performance water-fast, that alcohol resistance is good; It is characterized in that alkenyl monomer preparatory emulsification in the presence of zero(ppm) water and emulsifying agent processes the shell monomers mixture; Alkenyl monomer and part initiator carry out polyreaction and process seed emulsion in the presence of zero(ppm) water and emulsifying agent; In seed emulsion, add pre-emulsified shell monomers, residue initiator and function monomer and carry out the hud polymerization reaction; Under agitation in above-mentioned core-shell emulsion, add auxiliary agents such as nano silicon dispersion-s, wetting dispersing agent, skimmer buffer reagent, promptly obtain finished product after the filtration.
To achieve these goals; Technical solution of the present invention is: the first step, shell monomers are mixed: with a certain amount of zero(ppm) water and emulsifying agent; Under high rotating speed, stir for some time, add the alkenyl monomer of certain mass proportioning, promptly get pre-emulsified shell monomers mixture after fully stirring; Second step, seeded emulsion polymerization: with a certain amount of zero(ppm) water, emulsifying agent, the alkenyl monomer of certain mass proportioning, sodium hydrogencarbonate; Under the water bath with thermostatic control heated and stirred it is fully dissolved, be warmed up to 75～80 ℃, add the part initiator; Stirring is transferred to than the slow speed of revolution, is blue phase to emulsion; The 3rd step, hud polymerization: under 80 ℃, in above-mentioned seed emulsion, drip pre-emulsified shell monomers, residue initiator and function monomer, behind reinforced the finishing; System is warmed up to about 88 ℃, and insulation 0.5h cools to below 70 ℃ then; Add tertbutyl peroxide, S-WAT or sodium formaldehyde sulphoxylate, reaction 0.5～1h; Cool at last below 40 ℃, add the ammoniacal liquor adjust pH, discharging is filtered; The preparation of the 4th step, coating: under agitation in above-mentioned core-shell emulsion, add auxiliary agents such as nano silicon dispersion-s, wetting dispersing agent, skimmer; High-speed stirring 1～1.5h; Regulate pH to 8～8.5 with ammoniacal liquor then, stir about 0.5h, promptly obtain finished product after the filtration.
Further; Alkenyl monomer described in its building-up process is two or more in thiazolinyl acids or methyl thiazolinyl acids, alkenyl esters class or methyl alkenyl esters class, propylene oxide base ester class, vinylbenzene, the alkenyl amide class monomer, and particularly: the mass percent that thiazolinyl acids or methyl thiazolinyl acids monomer account for the monomer total amount is: 1%～5%; The mass percent that alkenyl esters class or methyl thiazolinyl esters monomer account for the monomer total amount is: 40%～65%; The mass percent that styrene monomer accounts for the monomer total amount is: 35%～45%; The mass percent that propylene oxide base esters monomer accounts for the monomer total amount is: 0～8%; The mass percent that alkenyl amide class monomer accounts for the monomer total amount is: 0～6%.
Further; Emulsifying agent described in its building-up process is two or more in sodium vinyl sulfonate, allyloxy hydroxypropyl azochlorosulfonate acid sodium, dodecylated diphenyl ether disulfonate, sodium lauryl sulphate, X 2073, polyoxyethylene octylphenol ether (OP-10), C10 isomer AEO (XP-70) and the AEO (AEO), and the mass percent that its consumption accounts for the monomer total amount is: 4%～10%; Described function monomer is diacetone-acryloamide(DAA) and organo-siloxane, and the mass percent that its consumption accounts for the monomer total amount is: 5%～12%.
Alkenyl monomer used in the present invention is the CP industrial goods; Diacetone-acryloamide(DAA) (DAAM) and adipic dihydrazide are the import industrial goods; Coupling agent is organo-siloxane KH 1 and KH 1.Its final product has higher plasticity; Water tolerance, hardness property, the glossiness standard that all meets the requirements, and have asepsis environment-protecting, odorlessness, volatilizable thing seldom, do not fire not quick-fried high security, not xanthochromia, weathering resistance is strong, hardness is high, wear-resisting, shock resistance, resistance to chemical attack, advantage that cementability is good.
Embodiment
Embodiment 1
(1) shell monomers mixture: 45% dodecylated diphenyl ether disulfonate emulsifying agent 8 gram and OP-10 emulsifying agent 2.5 grams are added to are equipped with 50 and restrain in the zero(ppm) water there-necked flasks; Under high rotating speed, stir for some time; Add 34.5 gram Bing Xisuandingzhis, 12 gram Isooctyl methacrylates, 27 gram vinylbenzene, 1.5 gram methylacrylic acids and 5% sodium hydrogen carbonate solution, 8 grams, promptly get pre-emulsified shell monomers mixture after fully stirring;
(2) seeded emulsion polymerization: the four-hole bottle that whisking appliance, reflux exchanger and TM will be housed places the water-bath that temperature regulating device is housed; Add 20 gram zero(ppm) water, 12 grams, 20% reactive emulsifier sodium vinyl sulfonate, 11.5 gram Bing Xisuandingzhis, 4 gram Isooctyl methacrylates, 9 gram vinylbenzene, 0.5 gram methylacrylic acid; 5% sodium hydrogen carbonate solution, 17 grams; Under the water bath with thermostatic control heated and stirred it is fully dissolved, be warmed up to 75～80 ℃, add 4 grams, 4% Potassium Persulphate initiator solution; Stirring is transferred to than the slow speed of revolution, is blue phase to emulsion;
(3) hud polymerization: under 80 ℃, in above-mentioned seed emulsion, drip the pre-emulsified shell monomers mixture of 143.5 grams, 10 grams, 4% Potassium Persulphate initiator solution, 8 gram diacetone-acryloamide(DAA)s and 5 gram γ-methacryloxypropyl trimethoxy silane (KH-570) function monomers; Behind reinforced the finishing, system is warmed up to about 88 ℃, insulation 0.5h; Cool to then about 65 ℃; Drip 2.5 gram 10% tertbutyl peroxide solution and 2.5 grams, 10% sodium formaldehyde sulphoxylate solution, reaction 0.5～1h cools to below 40 ℃ at last; Add the ammoniacal liquor adjust pH, discharging is filtered.
(4) preparation of coating: under agitation in above-mentioned core-shell emulsion, add 7.2 gram nano silicon dispersion-ss, 7 gram adipic dihydrazides, 0.6 gram skimmer; High-speed stirring 1～1.5h; Regulate pH to 8～8.5 with ammoniacal liquor then, stir about 0.5h, promptly obtain finished product after the filtration.
Embodiment 2
(1) shell monomers mixture: sodium lauryl sulphate emulsifying agent 4 gram and XP-70 emulsifying agent 3 grams are added to are equipped with 53 and restrain in the zero(ppm) water there-necked flasks; Under high rotating speed, stir for some time; Add 39 gram Bing Xisuandingzhis, 3 gram TEB 3Ks, 8 gram epoxy acrylates, 24 gram vinylbenzene, 3 gram methylacrylic acids and 5% sodium hydrogen carbonate solution, 8 grams, promptly get pre-emulsified shell monomers mixture after fully stirring;
(2) seeded emulsion polymerization: the four-hole bottle that whisking appliance, reflux exchanger and TM will be housed places the water-bath that temperature regulating device is housed; Add 20 gram zero(ppm) water, 6 grams, 40% response type allyloxy hydroxypropyl azochlorosulfonate acid sodium emulsifying agent, 13 gram Bing Xisuandingzhis, 1 gram TEB 3K, 8 gram vinylbenzene, 1 gram methylacrylic acid; 5% sodium hydrogen carbonate solution, 17 grams; Under the water bath with thermostatic control heated and stirred it is fully dissolved, be warmed up to 75～80 ℃, add 4 grams, 4% Potassium Persulphate initiator solution; Stirring is transferred to than the slow speed of revolution, is blue phase to emulsion;
(3) hud polymerization: under 80 ℃, in above-mentioned seed emulsion, drip the pre-emulsified shell monomers mixture of 145 grams, 10 grams, 4% Potassium Persulphate initiator solution, 8 gram diacetone-acryloamide(DAA)s and 4.5 gram γ-An Jibingjisanyiyangjiguiwan (KH-550) function monomers; Behind reinforced the finishing, system is warmed up to about 88 ℃, insulation 0.5h; Cool to then about 65 ℃; Drip 2.5 gram 10% tertbutyl peroxide solution and 3 grams, 10% sodium sulfite solution, reaction 0.5～1h cools to below 40 ℃ at last; Add the ammoniacal liquor adjust pH, discharging is filtered.
(4) preparation of coating: under agitation in above-mentioned core-shell emulsion, add 7.5 gram nano silicon dispersion-ss, 7 gram adipic dihydrazides, 0.6 gram skimmer; High-speed stirring 1～1.5h; Regulate pH to 8～8.5 with ammoniacal liquor then, stir about 0.5h, promptly obtain finished product after the filtration.
The above; Embodiment only is that preferred implementation of the present invention is described; Be not that scope of the present invention is limited; Under the prerequisite of the spirit that does not break away from the present invention's technology, various distortion and improvement that this area engineering technical personnel make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (4)
1. the water-based of a nano composite plastics coating is synthesized and preparation method thereof; It is characterized in that: described water nano composite plastic coating is a kind of mixture of organic polymer, and the shell monomers mixture is processed in alkenyl monomer preparatory emulsification in the presence of zero(ppm) water and emulsifying agent; Alkenyl monomer and part initiator carry out polyreaction and process seed emulsion in the presence of zero(ppm) water and emulsifying agent; In seed emulsion, add pre-emulsified shell monomers, residue initiator and function monomer and carry out the hud polymerization reaction; Under agitation in above-mentioned core-shell emulsion, add auxiliary agents such as nano silicon dispersion-s, wetting dispersing agent, skimmer buffer reagent, promptly obtain finished product after the filtration.
2. the water-based of a kind of nano composite plastics coating according to claim 1 is synthetic and preparation method thereof, it is characterized in that: specifically comprise following steps:
(1) shell monomers is mixed: with a certain amount of zero(ppm) water and emulsifying agent, under high rotating speed, stir for some time, add the alkenyl monomer of certain mass proportioning, promptly get pre-emulsified shell monomers mixture after fully stirring;
(2) seeded emulsion polymerization: with a certain amount of zero(ppm) water, emulsifying agent, the alkenyl monomer of certain mass proportioning, sodium hydrogencarbonate; Under the water bath with thermostatic control heated and stirred it is fully dissolved, be warmed up to 75～80 ℃, add the part initiator; Stirring is transferred to than the slow speed of revolution, is blue phase to emulsion;
(3) hud polymerization: under 80 ℃, in above-mentioned seed emulsion, drip pre-emulsified shell monomer, residue initiator and function monomer, behind reinforced the finishing; System is warmed up to about 88 ℃, and insulation 0.5h cools to below 70 ℃ then; Add tertbutyl peroxide, S-WAT or sodium formaldehyde sulphoxylate, reaction 0.5～1h; Cool at last below 40 ℃, add the ammoniacal liquor adjust pH, discharging is filtered;
(4) preparation of coating: under agitation in above-mentioned core-shell emulsion, add auxiliary agents such as nano silicon dispersion-s, wetting dispersing agent, skimmer; High-speed stirring 1～1.5h; Regulate pH to 8～8.5 with ammoniacal liquor then, stir about 0.5h, promptly obtain finished product after the filtration.
3. the water-based of a kind of nano composite plastics coating according to claim 1 is synthetic and preparation method thereof; It is characterized in that; Alkenyl monomer described in its building-up process is two or more in thiazolinyl acids or methyl thiazolinyl acids, alkenyl esters class or methyl alkenyl esters class, propylene oxide base ester class, vinylbenzene, the alkenyl amide class monomer, and particularly: the mass percent that thiazolinyl acids or methyl thiazolinyl acids monomer account for the monomer total amount is: 1%～5%; The mass percent that alkenyl esters class or methyl thiazolinyl esters monomer account for the monomer total amount is: 40%～65%; The mass percent that styrene monomer accounts for the monomer total amount is: 35%～45%; The mass percent that propylene oxide base esters monomer accounts for the monomer total amount is: 0～8%; The mass percent that alkenyl amide class monomer accounts for the monomer total amount is: 0～6%.
4. the water-based of a kind of nano composite plastics coating according to claim 1 is synthetic and preparation method thereof; It is characterized in that; Emulsifying agent described in its building-up process is two or more in sodium vinyl sulfonate, allyloxy hydroxypropyl azochlorosulfonate acid sodium, dodecylated diphenyl ether disulfonate, sodium lauryl sulphate, X 2073, polyoxyethylene octylphenol ether (OP-10), C10 isomer AEO (XP-70) and the AEO (AEO), and the mass percent that its consumption accounts for the monomer total amount is: 4%～10%; Described function monomer is diacetone-acryloamide(DAA) and organo-siloxane, and the mass percent that its consumption accounts for the monomer total amount is: 5%～12%.
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| CN2011102519264A CN102432740A (en) | 2011-07-29 | 2011-07-29 | Water-borne synthesis and preparation method for nano composite plastic paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831791A (en) * | 2021-09-17 | 2021-12-24 | 恒昌涂料（惠阳）有限公司 | Water-based alcohol-resistant self-crosslinking nano emulsion and preparation method and application thereof |
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| CN101092470A (en) * | 2006-06-22 | 2007-12-26 | 广东鸿昌化工有限公司 | Method for preparing microemulsion with high solid content of crosslinked polystyrene and acrylic (ester) |
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Patent Citations (1)
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| CN101092470A (en) * | 2006-06-22 | 2007-12-26 | 广东鸿昌化工有限公司 | Method for preparing microemulsion with high solid content of crosslinked polystyrene and acrylic (ester) |
Non-Patent Citations (3)
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| 孙道兴，魏燕彦: "《涂料调制与配色技术》", 30 November 2008 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113831791A (en) * | 2021-09-17 | 2021-12-24 | 恒昌涂料（惠阳）有限公司 | Water-based alcohol-resistant self-crosslinking nano emulsion and preparation method and application thereof |
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Address after: 264003 C213 room, Yantai college student Pioneer Park, 101 Aerospace Road, hi tech Zone, Shandong, Yantai Applicant after: Liu Fangxu Address before: 264006, No. 1, building 16, sun rise District, Yantai Development Zone, Shandong, 4 Applicant before: Liu Fangxu |
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Owner name: YANTAI HENGDIKE ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LIU FANGXU Effective date: 20140512 |
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Effective date of registration: 20140512 Address after: 264760 C109 room, Yantai college student Pioneer Park, 101 Aerospace Road, hi tech Zone, Shandong, Yantai Applicant after: Yantai Hengdike Energy Technology Co., Ltd. Address before: 264003 C213 room, Yantai college student Pioneer Park, 101 Aerospace Road, hi tech Zone, Shandong, Yantai Applicant before: Liu Fangxu |
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Application publication date: 20120502 |