CN110511388A - A kind of modified hydroxyl acrylic emulsion and preparation method thereof for aqueous coatings for tin plate printing - Google Patents
A kind of modified hydroxyl acrylic emulsion and preparation method thereof for aqueous coatings for tin plate printing Download PDFInfo
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/26—Emulsion polymerisation with the aid of emulsifying agents anionic
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/30—Emulsion polymerisation with the aid of emulsifying agents non-ionic
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/08—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of nitriles
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C08G81/024—Block or graft polymers containing sequences of polymers of C08C or C08F and of polymers of C08G
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D187/00—Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
- C09D187/005—Block or graft polymers not provided for in groups C09D101/00 - C09D185/04
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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Abstract
The present invention provides a kind of modified hydroxyl acrylic emulsions for aqueous coatings for tin plate printing, the above-mentioned modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing is core-shell structure, the hydroxyl of different content is introduced in the stratum nucleare and shell of emulsion particle, wherein the hydroxyl activity of stratum nucleare is higher than shell, while most of making hydroxyl and being enriched in shell;Shell has epoxy resin by graft reaction introducing, while also introducing crosslinking monomer in shell, and the emulsifier is grafted on polymer molecule;Using prepared by following methods: (1) preparation of monomer pre-emulsion;(2) preparation of seed emulsion;(3) preparation of core-shell emulsion;(4) the modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing is obtained after filtering.Its curing rate of aqueous coatings for tin plate printing provided by the invention, adhesion, resistance to boiling, solvent resistant etc. are all greatly improved compared with standard aqueous hydroxyl acrylic emulsion.
Description
Technical field
The present invention relates to a kind of modified hydroxyl acrylic emulsion more particularly to a kind of modification hydroxyls for aqueous coatings for tin plate printing
Base acrylic emulsion belongs to fine chemicals and preparation method thereof field.
Background technique
Aqueous coatings for tin plate printing refers to the general name for applying a kind of coating on tinplate or aluminium, also known as tin printing ink.In recent years
Come the development with food industry and packaging industry, various can product rapid developments, therefore the feature of environmental protection of aqueous coatings for tin plate printing and
High-performance also more and more attention has been paid to.Most common its film forming matter of aqueous coatings for tin plate printing be all by hydroxyl resin and
Amino resins is formed by curing by high-temperature baking, and wherein amino resins is applied more mature, mainly there is cyanogen spy 325 and 303 etc., and
The resin of hydroxyl is generally pure and mild Hydroxylated acrylic resin of solvent type polyester polyols etc., these solvent type resins in production and
It can be discharged in use process a large amount of volatile organic compounds (VOC), seriously endanger environment.
Also there is aqueous hydroxy resin to be applied at present, mainly there is water-soluble poly ester polyol, water soluble hydroxy propylene
Acid resin, water-based hydroxyl acrylic acid dispersion and water-based hydroxyl acrylic emulsion etc..
109485834A discloses a kind of PCM tin graphed sheet water-base resin, but has still used in resin synthesis process organic
Solvent reduces viscosity, although relative solvent type resin VOC content decreases, its total VOC content is still higher.
Since these water-soluble resins that limit of synthesis technology all contain a certain amount of cosolvent, environmental protection is wanted
It is not applicable for seeking higher aqueous coatings for tin plate printing.And water-based hydroxyl acrylic emulsion does not contain any from emulsion polymerization
Organic solvent has the excellent feature of environmental protection, is increasingly taken seriously, but water-based hydroxyl acrylic emulsion also has its deficiency
Place, for example will lead to the paint film adhesion after solidifying, solvent resistance, boiling resistance using emulsifier in synthesis process and be deteriorated, this
It is unevenly distributed that also result in curing efficiency low due to hydroxyl outside.
109929067 A of CN discloses a kind of hydroxyl acrylic emulsion with core-shell structure, passes through two layers of nucleocapsid of control
The size and introducing caprolactone modification acrylate monomer of molecular weight, improve the patience and gloss of paint film, but this method does not have
Have and make a search for specific application, and overall cost is higher.
To sum up, the water-based hydroxyl acrylic emulsion for aqueous coatings for tin plate printing of prior art report, comprehensive performance is simultaneously
It is unsatisfactory, especially curing rate, solvent resistance and in terms of more traditional water-soluble resin there is also
Very big gap, therefore develop very significant for the high-performance hydroxyl acrylic emulsion of aqueous coatings for tin plate printing.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of modified hydroxyl propylene yogurts for aqueous coatings for tin plate printing
Liquid, aqueous coatings for tin plate printing its curing rate being formulated with it, adhesion, resistance to boiling, solvent resistant etc. are compared with standard aqueous hydroxyl
Acrylic emulsion is all greatly improved.
The present invention realizes that above-mentioned purpose technical solution is as follows: a kind of modified hydroxyl propylene yogurt for aqueous coatings for tin plate printing
Liquid, the above-mentioned modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing are core-shell structure, are drawn in the stratum nucleare and shell of emulsion particle
Enter the hydroxyl of different content, wherein the hydroxyl activity of stratum nucleare is higher than shell, while most of making hydroxyl and being enriched in shell;Shell is logical
Crossing graft reaction introducing has epoxy resin, while also introducing crosslinking monomer in shell, and the emulsifier is grafted on polymer point
On son;
The modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing is using prepared by following methods: (1) monomer
The preparation of pre-emulsion: sequentially adding 8~12 parts of deionized waters, 0.2~0.4 part of compound emulsifying agent into emulsion tank, stirring
To abundant dissolution, 15~20 parts of acrylate monomers, 3~5 parts of functional acrylic monomers are then added, are obtained after high-speed stirred
The monomer pre-emulsion of white is 1.;
8~12 parts of deionized waters, 0.2~0.4 part of compound emulsifying agent are sequentially added into emulsion tank, are stirred to sufficiently molten
Then 15~20 parts of acrylate monomers, 3~5 parts of functional acrylic monomers, 1~2 part of epoxy resin, 1~2 part are added in solution
2. cross-linking monomer obtains the monomer pre-emulsion of white after high-speed stirred;
(2) 20~40 parts of deionized waters, 0.2~0.4 part compound the preparation of seed emulsion: are sequentially added into reaction kettle
Emulsifier, 0.04~0.06 part of pH buffer are stirred to abundant dissolution, are added 0.01~0.03 part when being warming up to 45~50 DEG C and are drawn
Agent is sent out, 70~80 DEG C is continuously heating to and 3%~8% monomer pre-emulsion is added 1., to obtain blue light semi-transparent by 20~30min of heat preservation
Bright seed emulsion;
(3) preparation of core-shell emulsion: the initiator with 8~12 parts 0.08~0.12 part of deionized water dissolving is drawn
Agent solution is sent out, 2/5~3/5 initiator solution and remaining monomer pre-emulsion is added dropwise after keeping the temperature to seed emulsion simultaneously
1. time for adding is 1~2 hour, reaction temperature is 80~85 DEG C, and keeps the temperature 30min;Then remaining initiator solution is added dropwise
2. with monomer pre-emulsion, time for adding is 1~2 hour, and reaction temperature is 80~85 DEG C;
(4) after completion of dropwise addition, 85~90 DEG C keep the temperature 0.5~2 hour, be then cooled to 50 DEG C hereinafter, be added 0.03~
0.05 part of amine neutralizer adjusts lotion pH 7~9, and the modified hydroxyl propylene yogurt for aqueous coatings for tin plate printing is obtained after filtering
Liquid.
Compound emulsifying agent used is compounded by nonionic emulsifier and anion emulsifier, wherein nonionic emulsifier
For fatty alcohol polyoxyethylene ether, ethoxylated dodecyl alcohol, fatty acid methyl ester APEO, allyl alkyl polyoxyethylene ether
One or more of mixture, wherein anion emulsifier be neopelex, lauryl sodium sulfate,
The mixing of one or more of dioctyl sodium sulfosuccinate, allyl alkyl polyoxyethylene ether nekal
Object.
Electrolyte used is the mixture of one or more of sodium bicarbonate, ammonium hydrogen carbonate, saleratus.
Acrylate monomer used be n-butyl acrylate, Isooctyl acrylate monomer, methyl methacrylate, styrene,
The mixing of one or more of isobornyl methacrylate, n-BMA, Tert-butyl Methacrylate
Object.
Functionality acrylic monomers used is methacrylic acid, acrylic acid, hydroxy-ethyl acrylate, hydroxyethyl methacrylate second
Ester, hydroxypropyl acrylate, hydroxy propyl methacrylate, the mixture of one or more of hy-droxybutyl.
The mixture of one or more of initiator ammonium persulfate used, potassium peroxydisulfate, sodium peroxydisulfate.
Amine neutralizer used is the mixture of one or more of dimethylethanolamine, sodium hydroxide, ammonium hydroxide.
Cross-linking monomer used is acetoacetoxyethyl methacrylate, glycidyl methacrylate, diacetone
The mixture of one or more of acrylamide, N hydroxymethyl acrylamide.
Epoxy resin used is the mixture of one or more of E51, E44, E20, E12, E06.
Compared with prior art, the beneficial effects of the present invention are:
(1) it during emulsion polymerization in such a way that two steps are added dropwise, is introduced in the stratum nucleare and shell of emulsion particle different
Functional group.The hydroxyl that different content is specifically introduced in stratum nucleare and shell, makes hydroxyl be enriched in shell, more as much as possible
In the generation of cross-linking reaction, curing efficiency is improved.
(2) epoxy resin is introduced by graft reaction in shell, the epoxy group, hydroxyl, ehter bond on epoxy resin assign
Give the fabulous substrate adhesion of new resin and faster solidification rate.
(3) in shell introducing crosslinked monomer, making it, further cross-linking reaction reaction improves crosslink density in the curing process,
Substantially increase solvent resistance, the boiling resistance of paint film.
(4) polymerizable reactive emulsifier is used during emulsion polymerization, emulsifier is finally grafted on polymer
On molecule, reduce the presence of free emulsifier small molecule, improves conventional emulsifier to the shadow of paint film adhesion and patience
It rings.
(5) acrylate monomers are screened, the hydroxyl activity of stratum nucleare is made to be higher than shell, it in this way can be to avoid out
The phenomenon that existing outer layer solidification and internal layer are without sufficiently solidifying, can make outer layer rapid curing also and can guarantee that internal layer sufficiently solidifies.
(6) epoxy resin is screened, uses the epoxy resin of macromolecule as far as possible, adhesion can be improved in this way
Also it can guarantee the flexibility of paint film.
In conclusion prepared by a kind of modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing provided by the invention
Any organic solvent is not used in journey, environmentally friendly, the aqueous coatings for tin plate printing curing rate prepared with it is fast, and adhesion is good,
And solvent resistance, boiling resistance, corrosion resistance are very excellent, and comprehensive performance is better than traditional hydroxypropyl lotion, and and water-soluble
Resin is very close, has wide commercial application prospect.
Specific embodiment
Detailed specific description done to the present invention combined with specific embodiments below, but protection scope of the present invention not office
It is limited to following embodiment.
Embodiment 1
(1) 10 parts of deionized waters, 0.3 part of compound emulsifying agent are sequentially added into emulsion tank, stirring is dissolved to abundant, so
11.1 parts of methyl methacrylates, 4.5 parts of styrene, 4.7 butyl acrylates, 0.2 part of acrylic acid, 2.0 parts of acrylic acid are added afterwards
1. the monomer mixture of hydroxyl ethyl ester composition, obtains the monomer pre-emulsion of white for high-speed stirred 30 minutes.Similarly, into emulsion tank
10 parts of deionized waters, 0.3 part of compound emulsifying agent are sequentially added, then 8.8 parts of methacrylic acids are added to abundant dissolution in stirring
Methyl esters, 3.5 parts of styrene, 2.0 butyl acrylates, 0.6 part of acrylic acid, 4.2 parts of hydroxy-ethyl acrylates, 1.8 parts of epoxy E51,1.8
1. the monomer mixture of part glycidyl methacrylate composition, obtains the monomer pre-emulsion of white for high-speed stirred 30 minutes
Monomer pre-emulsion is made 2..
(2) 30 parts of deionized waters, 0.3 part of compound emulsifying agent, 0.05 part of sodium bicarbonate stirring are sequentially added into reaction kettle
To abundant dissolution, 0.02 part of ammonium persulfate is added when being warming up to 50 DEG C, is continuously heating to the monomer pre-emulsion of 75 DEG C of additions 5%
1. heat preservation obtains the translucent seed emulsion of blue light in 20~30 minutes.
(3) 0.1 part of ammonium persulfate is dissolved with 10 parts of water and obtain initiator solution, drip simultaneously after keeping the temperature to seed emulsion
1., time for adding is 1.5 hours to the initiator solution and remaining monomer pre-emulsion for adding 50%, and reaction temperature is 80~85
DEG C, heat preservation 30 minutes is added dropwise.Then the initiator solution and monomer pre-emulsion for being added dropwise remaining 50% 2., time for adding
It is 2.0 hours, reaction temperature is 80~85 DEG C.
(4) after third step completion of dropwise addition, 85~90 DEG C keep the temperature 1 hour, are then cooled to 50 DEG C hereinafter, 0.8 part of ammonia is added
Water adjusts lotion pH 7~9, and the modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing is obtained after filtering.
Embodiment 2-5
Embodiment 2-5 is prepared according to the method for embodiment 1, and formula composition is as shown in the table.
Comparative example 1-3
Comparative example 1-3 is prepared according to the method for embodiment 1, and formula composition is as shown in the table.
In following table, each material name and abbreviation are as follows: methyl methacrylate MMA;N-butyl acrylate BA;Styrene St;
Acrylic acid AA;Hydroxy-ethyl acrylate HEA;Hy-droxybutyl HBA;Epoxy resin E51E51;Epoxy resin E20E20;Asphalt mixtures modified by epoxy resin
Rouge E06E06;Glycidyl methacrylate GMA;Dodecyl sulphate acid sodium SDS;Fatty alcohol polyoxyethylene ether AEO-9;Alkene
Propyl alkyl polyoxyethylene ether sulfate SR-10;Allyl alkyl polyoxyethylene ether ER-10.
Aqueous coatings for tin plate printing will be prepared into product obtained in embodiment 1-5 and comparative example 1-3, and to its performance
It is tested, preparation method, raw material proportioning and test method are as follows:
Each raw material of following mass parts: epoxy modified hydroxyl acrylic emulsion 80 is weighed first;Substrate wetting agents 0.5;Stream
Flat agent 0.3;Coalescing agent 3;Thickener 0.5;Amino resins (cyanogen spy 325) 10;Deionized water 5.5;According to above-mentioned formula in
Each raw material is sequentially added under speed stirring, then 15~20min of high-speed stirred, filtered up to varnish.
Resulting varnish is scratched in tinplate sheet with 25um bar, Shan Ganhou solidifies 10 at 150~200 DEG C~
15min, 5~10um of thickness of dry film, test carry out as follows:
Hardness: it is tested according to national standard GB/T6739-2006 " paint and varnish pencil method measures hardness of paint film ".
Adhesive force: it is tested according to national standard GB/T9286-1998 " cross cut test of paint and varnish paint film ".
Boiling resistance: sample is put into high-pressure sterilizing pot, 120 DEG C of boiling 30min, observation sample whether fall off, whiten,
Blistering.
Resistance to solvent resistance: being tested according to national standard GB/T 23989-2009 " coating solvent resistant wiping measuring method ", is surveyed
Examination solvent is butanone.
Flexibility: it is tested according to national standard GB/T 1731-1993 " paint film flexibility measuring method ".
Paint film bend test: it is surveyed according to national standard GB/T 6742-2007 " paint and varnish bend test (cylindrical shaft) "
Examination.
Impact resistance: it is tested according to GB/T 1732-1993 " paint film impact resistance measuring method ".
Test result is as follows shown in table:
It can be obtained from above-mentioned test result, compare implementation 1, embodiment 2, embodiment 3 it is found that molecular weight of epoxy resin is bigger,
Paint film flexibility is better, and solidification effect is more preferable, and boiling resistance and solvent resistance are better.
It is found that using response type emulsibility, the small-molecular emulsifier to dissociate in paint film is few for comparing embodiment 3 and comparative example 1,
The adhesion and patience of paint film are more preferable.
Comparing embodiment 3 and comparative example 2 using core-shell emulsion polymerization it is found that make reaction group be enriched in latex as far as possible
Grain outer layer, faster, crosslink density is higher for curing rate, and the hardness and patience of paint film are more preferable.
Comparing embodiment 3 and comparative example 3 can significantly improve the attachment of paint film it is found that introducing epoxy resin and cross-linking monomer
Property and patience.
Comparing embodiment 3, embodiment 4 and embodiment 5 are it is found that introduce the higher hy-droxybutyl of hydroxyl activity, paint film
Curing rate faster, if but all using hy-droxybutyl, it is inconsistent that too high activity will lead to the inside and outside solidification of paint film, instead
It will affect paint film property, furthermore hy-droxybutyl higher cost, all can make lotion overall cost using hy-droxybutyl
It is higher, it the use of use a small amount of hy-droxybutyl is suitable in stratum nucleare.
In summary, the modified hydroxyl acrylic emulsion prepared using the method for the present invention, prepared with it with amino resins and
At aqueous coatings for tin plate printing, have higher curing efficiency, good boiling resistance, solvent resistance.Compare other hydroxy resins
More environmentally-friendly, comparing traditional water-based hydroxyl acrylic emulsion has higher curing efficiency, better boiling resistance and resistance to
Solvent borne has broad application prospects.
Claims (9)
1. a kind of modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing, it is characterised in that: above-mentioned to be applied for aqueous tin graphed sheet
The modified hydroxyl acrylic emulsion of material is core-shell structure, introduces the hydroxyl of different content in the stratum nucleare and shell of emulsion particle, wherein
The hydroxyl activity of stratum nucleare is higher than shell, while most of making hydroxyl and being enriched in shell;Shell has epoxy by graft reaction introducing
Resin, while crosslinking monomer is also introduced in shell, the emulsifier is grafted on polymer molecule;
The modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing is using prepared by following methods: (1) the pre- cream of monomer
Change the preparation of liquid: sequentially adding 8~12 parts of deionized waters, 0.2~0.4 part of compound emulsifying agent into emulsion tank, stirring is to filling
Divide dissolution, 15~20 parts of acrylate monomers, 3~5 parts of functional acrylic monomers are then added, obtain white after high-speed stirred
Monomer pre-emulsion 1.;
8~12 parts of deionized waters, 0.2~0.4 part of compound emulsifying agent are sequentially added into emulsion tank, stirring is dissolved to abundant,
Then 15~20 parts of acrylate monomers, 3~5 parts of functional acrylic monomers, 1~2 part of epoxy resin, 1~2 part of crosslinking is added
2. monomer obtains the monomer pre-emulsion of white after high-speed stirred;
(2) 20~40 parts of deionized waters, 0.2~0.4 part of composite emulsifying the preparation of seed emulsion: are sequentially added into reaction kettle
Agent, 0.04~0.06 part of pH buffer are stirred to abundant dissolution, and 0.01~0.03 part of initiator is added when being warming up to 45~50 DEG C,
It is continuously heating to 70~80 DEG C and 3%~8% monomer pre-emulsion is added 1., to obtain blue light translucent by 20~30min of heat preservation
Seed emulsion;
(3) preparation of core-shell emulsion: initiator is obtained with 8~12 parts 0.08~0.12 part of deionized water dissolving of initiator
Solution, to seed emulsion heat preservation after simultaneously be added dropwise 2/5~3/5 initiator solution and remaining monomer pre-emulsion 1.,
Time for adding is 1~2 hour, and reaction temperature is 80~85 DEG C, and keeps the temperature 30min;Then be added dropwise remaining initiator solution and
2., time for adding is 1~2 hour to monomer pre-emulsion, and reaction temperature is 80~85 DEG C;
(4) after completion of dropwise addition, 85~90 DEG C keep the temperature 0.5~2 hour, are then cooled to 50 DEG C hereinafter, being added 0.03~0.05 part
Amine neutralizer adjusts lotion pH 7~9, and the modified hydroxyl acrylic emulsion for aqueous coatings for tin plate printing is obtained after filtering.
2. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
Compound emulsifying agent compounded by nonionic emulsifier and anion emulsifier, wherein nonionic emulsifier be fatty alcohol polyoxy
One of vinethene, ethoxylated dodecyl alcohol, fatty acid methyl ester APEO, allyl alkyl polyoxyethylene ether or two
Kind or more mixture, wherein anion emulsifier be neopelex, lauryl sodium sulfate, dioctyl succinate
The mixture of one or more of sodium sulfonate, allyl alkyl polyoxyethylene ether nekal.
3. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
Electrolyte be one or more of sodium bicarbonate, ammonium hydrogen carbonate, saleratus mixture.
4. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
Acrylate monomer be that n-butyl acrylate, Isooctyl acrylate monomer, methyl methacrylate, styrene, methacrylic acid are different
The mixture of one or more of norbornene ester, n-BMA, Tert-butyl Methacrylate.
5. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
Functional acrylic monomers is methacrylic acid, acrylic acid, hydroxy-ethyl acrylate, hydroxyethyl methacrylate, acrylic acid hydroxypropyl
Ester, hydroxy propyl methacrylate, the mixture of one or more of hy-droxybutyl.
6. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
The mixture of one or more of initiator ammonium persulfate, potassium peroxydisulfate, sodium peroxydisulfate.
7. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
Amine neutralizer is the mixture of one or more of dimethylethanolamine, sodium hydroxide, ammonium hydroxide.
8. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
Cross-linking monomer be acetoacetoxyethyl methacrylate, glycidyl methacrylate, Diacetone Acrylamide, N- hydroxyl
The mixture of one or more of Methacrylamide.
9. the modified hydroxyl acrylic emulsion according to claim 1 for aqueous coatings for tin plate printing, it is characterised in that: used
Epoxy resin be one or more of E51, E44, E20, E12, E06 mixture.
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CN114213949A (en) * | 2021-12-21 | 2022-03-22 | 福建省三棵树新材料有限公司 | Waterborne epoxy modified acrylic acid two-component transparent coating for medals and preparation method thereof |
CN114920888A (en) * | 2022-03-01 | 2022-08-19 | 上海保立佳化学技术有限公司 | Hydroxy acrylic ester emulsion for bi-component anti-doodling finishing varnish and preparation method thereof |
CN115340781A (en) * | 2022-09-05 | 2022-11-15 | 天津中航百慕新材料技术有限公司 | Graphene-basalt composition, coating and preparation method of coating |
CN115851065A (en) * | 2022-11-25 | 2023-03-28 | 湖北双键精细化工有限公司 | Modified acrylic emulsion for single-component primer matched with UV finishing paint and preparation method thereof |
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