CN102643590B - Water-based paint and preparation method thereof - Google Patents
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Abstract
The invention relates to a water-based paint which is prepared from the following raw materials in percentage by weight: 58-65% of water, 0.5-0.7% of C12 fatty alcohol polyoxyethylene (7) ether, 0.5-1% of sodium lauryl sulfate, 8-12% of methyl methacrylate, 5-7% of butyl acrylate, 5-11% of styrene, 3.5-5.5% of acrylic acid, 5-7% of butyl methacrylate, 0.5-1% of N-hydroxymethyl acrylamide, 0.5-1.5% of itaconic acid, 0.5-1.2% of sodium hydroxide solution, 0.1-0.2% of defoaming agent, 0.05-0.1% of sodium acetate, 0.1-0.2% of preservative and 0.1-0.2% of ammonium persulfate. The water-based paint provided by the invention has the advantages of no toxicity or harm and low environmental pollution, and can not influence the safety and sanitation of the packaged food; and the formed paint coating has the advantages of high toughness, high brightness, strong adhesive force, wide printing adaptability and excellent subsequent printing processability.
Description
Technical field
The present invention relates to coating composition, specifically, relate to a kind of water-miscible paint and preparation method thereof.
Background technology
In food flexible packing printing industry, on PE film, OPP film, PET film, be coated with after coast of paint, can form the film of high-light transparent.In order to make film more attractive and durable, require enamelled coating to there is strong adhesive force; In addition, conventionally also need on enamelled coating, print and decorate or mark picture and text, therefore require enamelled coating to be applicable to follow-up printing processing.
Along with the raising day by day that people require food safety and sanitation, require wrapping material not only attractive in appearance, and safety, health.And along with the pay attention to day by day of people to environment protection, the objectionable impurities that also requires paint in use to volatilize is few, does not even volatilize objectionable impurities, meets environmental requirement.
At present, the enamel-cover that food flexible packing printing industry is used is drawn together oil-base paint and water-miscible paint.
Although the enamelled coating forming after the coating of some oil-base paints can meet the requirement of high brightness and follow-up printing processing, can volatilize more objectionable impurities in use procedure, environmental pollution is large, cannot meet the requirement of environmental protection, and also cost is higher.
Although water-miscible paint environmental pollution is less, the enamelled coating forming after water-miscible paint coating in the market can not meet the requirement of high brightness, strong adhesive force and follow-up printing processing simultaneously.In addition, existing water-miscible paint is mostly urethane, the epoxy resin etc. of water-based, and the enamelled coating forming after coating often remains the toxic substances such as prussiate, affects safety, the health of food.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of environment-friendly type aqueous paint, and the preparation method of this water-miscible paint, and the enamelled coating forming after this water-miscible paint coating has high brightness and strong adhesive force, and is adapted to follow-up printing processing.The technical scheme adopting is as follows:
A kind of water-miscible paint, is characterized in that being made up of the raw material of following weight per-cent: water 58～65%, C
aliphatic alcohol polyethenoxy (7) ether 0.5～0.7%, sodium lauryl sulphate 0.5～1%, methyl methacrylate 8～12%, butyl acrylate 5～7%, vinylbenzene 5～11%, vinylformic acid 3.5～5.5%, butyl methacrylate 5～7%, N hydroxymethyl acrylamide 0.5～1%, methylene-succinic acid 0.5～1.5%, sodium hydroxide solution 0.5～1.2%, defoamer 0.1～0.2%, sodium acetate 0.05～0.1%, sanitas 0.1～0.2%, ammonium persulphate 0.1～0.2%.
Above-mentioned water is as dispersion agent.Preferred above-mentioned water is deionized water.
Above-mentioned C
aliphatic alcohol polyethenoxy (7) ether, sodium lauryl sulphate are tensio-active agent, play emulsifying effect.
Above-mentioned ammonium persulphate, as catalyzer, can reduce activation energy, promotes polyreaction.
Above-mentioned sodium acetate, as buffer reagent, can be adjusted the potential of hydrogen of emulsion, guarantees the smoothness of elicitation procedure.
Above-mentioned methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide and methylene-succinic acid are at tensio-active agent C
under the emulsifying effect of aliphatic alcohol polyethenoxy (7) ether and sodium lauryl sulphate, and under the acting in conjunction of catalyzer ammonium persulphate and buffer reagent sodium acetate, aggregate into multipolymer.The solid thing composition of water-miscible paint is exactly above-mentioned multipolymer.Above-mentioned methyl methacrylate and vinylbenzene can strengthen the intensity of the enamelled coating forming after paint coating, and strengthen the resistance to elevated temperatures of enamelled coating, prevent that enamelled coating is subject to heat crack.Vinylbenzene also can reduce static and the surface tension of film, improves the printing of enamelled coating.Butyl acrylate can strengthen toughness and the brightness of enamelled coating.Vinylformic acid, N hydroxymethyl acrylamide, methylene-succinic acid can increase the self-crosslinking of multipolymer, thereby increase intensity, temperature tolerance and the solvent resistance of multipolymer, and improve the coating performance of paint.Butyl methacrylate can strengthen the toughness of enamelled coating.Above-mentioned sodium hydroxide solution plays neutralization and adjusts viscosity.The weight percent concentration of preferred above-mentioned sodium hydroxide solution is 15～25%, and more preferably the weight percent concentration of above-mentioned sodium hydroxide solution is 20%.
Above-mentioned defoamer works to eliminate the foam in water-miscible paint, guarantees Painting effect.Above-mentioned defoamer can be for example, in mineral oil antifoam agent and modified organo-silicon defoamer (brand that Germany produces is the defoamer that TEGO enlightening is high, model is TEGOFoamex825, and its chemical constitution is polysiloxane-polyether copolymer emulsion) a kind of or both miscellanys.
Foregoing preservatives can suppress the mould-growth in coating, makes coating keep steady quality.Foregoing preservatives can be isothiazolinone (isothiazolinone is commonly called as Kathon CG, and its effective constituent is the mixture of MIT and CMIT).
On the other hand, the present invention also provides a kind of preparation method of above-mentioned water-miscible paint, it is characterized in that comprising the steps: successively
(1) be equipped with according to the above ratio water, C
aliphatic alcohol polyethenoxy (7) ether, sodium lauryl sulphate, methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, sodium hydroxide solution, defoamer, sodium acetate, sanitas and ammonium persulphate; The moisture being equipped with becomes three parts, first part's water is for step (2), second section water is for step (3), Part III water is for step (4), first part's water accounts for 45～50% of be equipped with water, second section water accounts for 5～10% of be equipped with water, and Part III water accounts for 45～50% of be equipped with water;
(2) first part's water is added in pre-emulsification still, and methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, C that step (1) is equipped with
aliphatic alcohol polyethenoxy (7) ether and sodium lauryl sulphate add in pre-emulsification still, then carry out pre-emulsification, obtain pre-emulsion;
(3) second section water is added in dissolving vessel, and the ammonium persulphate that step (1) is equipped with adds in dissolving vessel, then stir, ammonium persulphate is dissolved, obtain ammonium persulfate solution;
(4) Part III water is dropped in reactor, and in the sodium acetate that step (1) is equipped with input reactor, then stir and be heated to 80 ℃;
(5) get pre-emulsion 1/10 and drop in reactor, then stir 10 minutes; Then get 1/3 of ammonium persulfate solution that step (3) obtains and drop in reactor, carry out initiation reaction (initiation reaction is carried out in process, and the temperature of the material in reactor will rise to 88～92 ℃ automatically); While falling after rise to 85 ℃ Deng the temperature of the material in reactor, to dripping remaining pre-emulsion (be pre-emulsion 9/10) and remaining ammonium persulfate solution (be ammonium persulfate solution 2/3) in reactor, dropping temperature is controlled at 85～90 ℃; After dropwising, make the material in reactor be incubated 3 hours, then make the material cooling in reactor;
(6) in the time that the temperature of the material in reactor is down to 40 ℃, the defoamer, sodium hydroxide solution and the sanitas that add step (1) to be equipped with, and stir, obtain water-miscible paint.The pH value of water-miscible paint is controlled at 7.0 left and right.
In preferred steps (5), remaining pre-emulsion and remaining ammonium persulfate solution synchronously, are at the uniform velocity added drop-wise in reactor; More preferably within the time of 150～180 minutes, remaining pre-emulsion and remaining ammonium persulfate solution synchronously, are at the uniform velocity added drop-wise in reactor.
Water-miscible paint of the present invention is nontoxic, there is no the volatilization of organic solvent in storage, use procedure, and environmental pollution is little, meets environmental requirement.The enamelled coating forming after coating is tough and tensile, and luminance brightness is high, strong adhesion, and also printing adaptability is wide, and follow-up printing processing characteristics is splendid.The more important thing is, enamelled coating, not containing residual poisonous and harmful small-molecule substance, can not affect safety, the health of the food of packaging.In addition, water-miscible paint of the present invention is easy to use, and surface covered is fast, and production efficiency is high, and unit surface glue spread is few, and energy consumption is low, can significantly reduce costs.When coating, can add at any time as required water, to adjust the viscosity of water-miscible paint.
Embodiment
Embodiment 1
Prepare in the steps below successively water-miscible paint:
(1) by preparation 5000kg water-miscible paint, be equipped with water 2950kg(account for raw material gross weight 59%), C
aliphatic alcohol polyethenoxy (7) ether 35kg(account for raw material gross weight 0.7%), sodium lauryl sulphate 50kg (account for raw material gross weight 1%), methyl methacrylate 575kg(account for raw material gross weight 11.5%), butyl acrylate 250kg(account for raw material gross weight 5%), vinylbenzene 550kg(account for raw material gross weight 11%), vinylformic acid 175kg(account for raw material gross weight 3.5%), butyl methacrylate 250kg(account for raw material gross weight 5%), N hydroxymethyl acrylamide 42.5kg(account for raw material gross weight 0.85%), methylene-succinic acid 75kg(accounts for raw material gross weight 1.5%), sodium hydroxide solution 30kg(accounts for 0.6% of raw material gross weight, its concentration is 20%), defoamer 5kg(accounts for 0.1% of raw material gross weight, in the present embodiment, the brand that defoamer adopts Germany to produce is the defoamer that TEGO enlightening is high, model is TEGOFoamax825), sodium acetate 2.5kg(account for raw material gross weight 0.05%), sanitas 5kg(is isothiazolinone, account for raw material gross weight 0.1%), ammonium persulphate 5kg(account for raw material gross weight 0.1%), the moisture being equipped with becomes three parts, first part's water is for step (2), second section water is for step (3), Part III water is for step (4), the water 1327.5kg(of first part account for be equipped with water 45%), second section water 295kg(account for be equipped with water 10%), Part III water 1327.5kg(account for be equipped with water 45%),
(2) first part's water is added in pre-emulsification still, and methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, C that step (1) is equipped with
aliphatic alcohol polyethenoxy (7) ether and sodium lauryl sulphate add in pre-emulsification still, then carry out pre-emulsification, obtain 3330kg pre-emulsion;
(3) second section water is added in dissolving vessel, and the ammonium persulphate that step (1) is equipped with adds in dissolving vessel, then stir, ammonium persulphate is dissolved, obtain 300kg ammonium persulfate solution;
(4) Part III water is dropped in reactor, and in the sodium acetate that step (1) is equipped with input reactor, then stir and be heated to 80 ℃;
(5) get 333kg pre-emulsion (account for pre-emulsion total amount 1/10) and drop in reactor, then stirring 10 minutes; Then the 1/3(that gets the ammonium persulfate solution that step (3) obtains is 100kg ammonium persulfate solution) drop in reactor, carry out initiation reaction (initiation reaction is carried out in process, and the temperature of the material in reactor will rise to 88～92 ℃ automatically); While falling after rise to 85 ℃ Deng the temperature of the material in reactor, to synchronously, at the uniform velocity dripping remaining 2997kg pre-emulsion (account for pre-emulsion total amount 9/10) and remaining ammonium persulfate solution (being other 200kg ammonium persulfate solution) in reactor, dropping temperature is controlled at 85～90 ℃, within the time of 150 minutes, dropwises; After dropwising, make the material in reactor be incubated 3 hours, then make the material cooling in reactor;
(6) in the time that the temperature of the material in reactor is down to 40 ℃, the defoamer, sodium hydroxide solution and the sanitas that add step (1) to be equipped with, and stir, obtain 5000kg water-miscible paint.
Embodiment 2
Prepare in the steps below successively water-miscible paint:
(1) by preparation 5000kg water-miscible paint, be equipped with water 3054kg(account for raw material gross weight 61.08%), C
aliphatic alcohol polyethenoxy (7) ether 25kg(account for raw material gross weight 0.5%), sodium lauryl sulphate 35kg(account for raw material gross weight 0.7%), methyl methacrylate 400kg(account for raw material gross weight 8%), butyl acrylate 350kg(account for raw material gross weight 7%), vinylbenzene 500kg(account for raw material gross weight 10%), vinylformic acid 200kg(account for raw material gross weight 4%), butyl methacrylate 300kg(account for raw material gross weight 6%), N hydroxymethyl acrylamide 25kg(account for raw material gross weight 0.5%), methylene-succinic acid 25kg(account for raw material gross weight 0.5%), sodium hydroxide solution 60kg(accounts for 1.2% of raw material gross weight, and its concentration is 15%), defoamer 7.5kg(accounts for 0.15% of raw material gross weight, and in the present embodiment, the brand that defoamer adopts Germany to produce is that TEGO enlightening is high, model is the defoamer of TEGOFoamex825), sodium acetate 4kg(account for raw material gross weight 0.08%), sanitas 7.5kg(is isothiazolinone, account for raw material gross weight 0.15%), ammonium persulphate 7kg(account for raw material gross weight 0.14%), the moisture being equipped with becomes three parts, first part's water is for step (2), second section water is for step (3), Part III water is for step (4), the water 1502.6kg(of first part account for be equipped with water 49.2%), second section water 152.7kg(account for be equipped with water 5%), Part III water 1398.7kg(account for joined water 45.8%),
(2) first part's water is added in pre-emulsification still, and methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, C that step (1) is equipped with
aliphatic alcohol polyethenoxy (7) ether and sodium lauryl sulphate add in pre-emulsification still, then carry out pre-emulsification, obtain 3362.6kg pre-emulsion;
(3) second section water is added in dissolving vessel, and the ammonium persulphate that step (1) is equipped with adds in dissolving vessel, then stir, ammonium persulphate is dissolved, obtain 159.7kg ammonium persulfate solution;
(4) Part III water is dropped in reactor, and in the sodium acetate that step (1) is equipped with input reactor, then stir and be heated to 80 ℃;
(5) get 336.26kg pre-emulsion (account for pre-emulsion total amount 1/10) and drop in reactor, then stirring 10 minutes; Then get the i.e. about 53.23kg ammonium persulfate solution of 1/3(of the ammonium persulfate solution that step (3) obtains) drop in reactor, carry out initiation reaction (initiation reaction is carried out in process, and the temperature of the material in reactor will rise to 88～92 ℃ automatically); While falling after rise to 85 ℃ Deng the temperature of the material in reactor, to synchronously, at the uniform velocity dripping remaining 3026.34kg pre-emulsion (account for pre-emulsion total amount 9/10) and remaining ammonium persulfate solution (remaining approximately 106.47kg ammonium persulfate solution) in reactor, dropping temperature is controlled at 85～90 ℃, within the time of 180 minutes, dropwises; After dropwising, make the material in reactor be incubated 3 hours, then make the material cooling in reactor;
(6) in the time that the temperature of the material in reactor is down to 40 ℃, the defoamer, sodium hydroxide solution and the sanitas that add step (1) to be equipped with, and stir, obtain 5000kg water-miscible paint.
Embodiment 3
Prepare in the steps below successively water-miscible paint:
(1) by preparation 5000kg water-miscible paint, be equipped with water 3165kg(account for raw material gross weight 63.3%), C
aliphatic alcohol polyethenoxy (7) ether 30kg(account for raw material gross weight 0.6%), sodium lauryl sulphate 50kg(account for raw material gross weight 1%), methyl methacrylate 435kg(account for raw material gross weight 8.7%), butyl acrylate 275kg(account for raw material gross weight 5.5%), vinylbenzene 250kg(account for raw material gross weight 5%), vinylformic acid 275kg(account for raw material gross weight 5.5%), butyl methacrylate 350kg(account for raw material gross weight 7%), N hydroxymethyl acrylamide 50kg(account for raw material gross weight 1%), methylene-succinic acid 35kg(account for raw material gross weight 0.7%), sodium hydroxide solution 50kg(accounts for 1% of raw material gross weight, its concentration is 25%), defoamer 10kg(accounts for 0.2% of raw material gross weight, in the present embodiment, defoamer adopts mineral oil antifoam agent), sodium acetate 5kg(account for raw material gross weight 0.1%), sanitas 10kg(is isothiazolinone, account for raw material gross weight 0.2%), ammonium persulphate 10kg(account for raw material gross weight 0.2%), the moisture being equipped with becomes three parts, first part's water is for step (2), second section water is for step (3), Part III water is for step (4), the water 1425kg(of first part account for be equipped with water 45%), second section water 218kg(account for be equipped with water 6.9%), Part III water 1522kg(account for joined water 48.1%),
(2) first part's water is added in pre-emulsification still, and methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, C that step (1) is equipped with
aliphatic alcohol polyethenoxy (7) ether and sodium lauryl sulphate add in pre-emulsification still, then carry out pre-emulsification, obtain 3175kg pre-emulsion;
(3) second section water is added in dissolving vessel, and the ammonium persulphate that step (1) is equipped with adds in dissolving vessel, then stir, ammonium persulphate is dissolved, obtain 228kg ammonium persulfate solution;
(4) Part III water is dropped in reactor, and in the sodium acetate that step (1) is equipped with input reactor, then stir and be heated to 80 ℃;
(5) get 317.5kg pre-emulsion (account for pre-emulsion total amount 1/10) and drop in reactor, then stirring 10 minutes; Then the 1/3(that gets the ammonium persulfate solution that step (3) obtains is 76kg ammonium persulfate solution) drop in reactor, carry out initiation reaction (initiation reaction is carried out in process, and the temperature of the material in reactor will rise to 88～92 ℃ automatically); While falling after rise to 85 ℃ Deng the temperature of the material in reactor, to synchronously, at the uniform velocity dripping remaining 2857.5kg pre-emulsion (account for pre-emulsion total amount 9/10) and remaining ammonium persulfate solution (being all the other 152kg ammonium persulfate solutions) in reactor, dropping temperature is controlled at 85～90 ℃, within the time of 160 minutes, dropwises; After dropwising, make the material in reactor be incubated 3 hours, then make the material cooling in reactor;
(6) in the time that the temperature of the material in reactor is down to 40 ℃, the defoamer, sodium hydroxide solution and the sanitas that add step (1) to be equipped with, and stir, obtain 5000kg water-miscible paint.
Claims (6)
1. a water-miscible paint, is characterized in that being made up of the raw material of following weight per-cent: water 58～65%, C
aliphatic alcohol polyethenoxy (7) ether 0.5～0.7%, sodium lauryl sulphate 0.5～1%, methyl methacrylate 8～12%, butyl acrylate 5～7%, vinylbenzene 5～11%, vinylformic acid 3.5～5.5%, butyl methacrylate 5～7%, N hydroxymethyl acrylamide 0.5～1%, methylene-succinic acid 0.5～1.5%, sodium hydroxide solution 0.5～1.2%, defoamer 0.1～0.2%, sodium acetate 0.05～0.1%, sanitas 0.1～0.2%, ammonium persulphate 0.1～0.2%;
The preparation method of described water-miscible paint comprises the steps: successively
(1) be equipped with according to the above ratio water, C
aliphatic alcohol polyethenoxy (7) ether, sodium lauryl sulphate, methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, sodium hydroxide solution, defoamer, sodium acetate, sanitas and ammonium persulphate; The moisture being equipped with becomes three parts, first part's water is for step (2), second section water is for step (3), Part III water is for step (4), first part's water accounts for 45～50% of be equipped with water, second section water accounts for 5～10% of be equipped with water, and Part III water accounts for 45～50% of be equipped with water;
(2) first part's water is added in pre-emulsification still, and methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, C that step (1) is equipped with
aliphatic alcohol polyethenoxy (7) ether and sodium lauryl sulphate add in pre-emulsification still, then carry out pre-emulsification, obtain pre-emulsion;
(3) second section water is added in dissolving vessel, and the ammonium persulphate that step (1) is equipped with adds in dissolving vessel, then stir, ammonium persulphate is dissolved, obtain ammonium persulfate solution;
(4) Part III water is dropped in reactor, and in the sodium acetate that step (1) is equipped with input reactor, then stir and be heated to 80 ℃;
(5) get pre-emulsion 1/10 and drop in reactor, then stir 10 minutes; Then get 1/3 of ammonium persulfate solution that step (3) obtains and drop in reactor, carry out initiation reaction; While falling after rise to 85 ℃ Deng the temperature of the material in reactor, in reactor, drip remaining pre-emulsion and remaining ammonium persulfate solution, dropping temperature is controlled at 85～90 ℃; After dropwising, make the material in reactor be incubated 3 hours, then make the material cooling in reactor;
(6) in the time that the temperature of the material in reactor is down to 40 ℃, the defoamer, sodium hydroxide solution and the sanitas that add step (1) to be equipped with, and stir, obtain water-miscible paint.
2. water-miscible paint according to claim 1, is characterized in that: the weight percent concentration of described sodium hydroxide solution is 15～25%.
3. water-miscible paint according to claim 2, is characterized in that: the weight percent concentration of described sodium hydroxide solution is 20%.
4. water-miscible paint according to claim 1, is characterized in that: described defoamer is a kind of in mineral oil antifoam agent and modified organo-silicon defoamer or both miscellanys.
5. water-miscible paint according to claim 1, is characterized in that: described sanitas is isothiazolinone.
6. the preparation method of water-miscible paint claimed in claim 1, is characterized in that comprising the steps: successively
(1) be equipped with according to the above ratio water, C
aliphatic alcohol polyethenoxy (7) ether, sodium lauryl sulphate, methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, sodium hydroxide solution, defoamer, sodium acetate, sanitas and ammonium persulphate; The moisture being equipped with becomes three parts, first part's water is for step (2), second section water is for step (3), Part III water is for step (4), first part's water accounts for 45～50% of be equipped with water, second section water accounts for 5～10% of be equipped with water, and Part III water accounts for 45～50% of be equipped with water;
(2) first part's water is added in pre-emulsification still, and methyl methacrylate, butyl acrylate, vinylbenzene, vinylformic acid, butyl methacrylate, N hydroxymethyl acrylamide, methylene-succinic acid, C that step (1) is equipped with
aliphatic alcohol polyethenoxy (7) ether and sodium lauryl sulphate add in pre-emulsification still, then carry out pre-emulsification, obtain pre-emulsion;
(3) second section water is added in dissolving vessel, and the ammonium persulphate that step (1) is equipped with adds in dissolving vessel, then stir, ammonium persulphate is dissolved, obtain ammonium persulfate solution;
(4) Part III water is dropped in reactor, and in the sodium acetate that step (1) is equipped with input reactor, then stir and be heated to 80 ℃;
(5) get pre-emulsion 1/10 and drop in reactor, then stir 10 minutes; Then get 1/3 of ammonium persulfate solution that step (3) obtains and drop in reactor, carry out initiation reaction; While falling after rise to 85 ℃ Deng the temperature of the material in reactor, in reactor, drip remaining pre-emulsion and remaining ammonium persulfate solution, dropping temperature is controlled at 85～90 ℃; After dropwising, make the material in reactor be incubated 3 hours, then make the material cooling in reactor;
(6) in the time that the temperature of the material in reactor is down to 40 ℃, the defoamer, sodium hydroxide solution and the sanitas that add step (1) to be equipped with, and stir, obtain water-miscible paint.
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| CN103626907A (en) * | 2013-11-15 | 2014-03-12 | 马钢(集团)控股有限公司 | Styrene-acrylic emulsion and synthetic method thereof and electrical steel coating |
| CN104277623A (en) * | 2014-09-09 | 2015-01-14 | 安徽国电能源设备工程有限公司 | Rosin paint |
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| CN109880461A (en) * | 2018-12-31 | 2019-06-14 | 滁州格锐矿业有限责任公司 | A kind of water-based industrial paint and preparation method thereof containing sericite |
| CN112726273B (en) * | 2021-01-30 | 2023-08-22 | 汕头市鑫源化工科技有限公司 | Water-based high-gloss paint and preparation method thereof |
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| CN102643590A (en) | 2012-08-22 |
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