CN102718929B - Styrene-acrylic emulsion for surface coating of coated paper and preparation method of styrene-acrylic emulsion - Google Patents
Styrene-acrylic emulsion for surface coating of coated paper and preparation method of styrene-acrylic emulsion Download PDFInfo
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Abstract
The invention discloses a styrene-acrylic emulsion for a surface coating of coated paper and a preparation method of the styrene-acrylic emulsion. The styrene-acrylic emulsion comprises the following raw materials in parts by weight: 100 parts of mixed monomer, 4 to 15 parts of seeded emulsion, 0.7 to 4.5 part(s) of emulsifying agent, 0.4 to 4.5 part(s) of initiator, 0.5 to 1.5 part(s) of accelerator, 2 to 6 parts of functional monomer, 4 to 20 parts of aqueous alkali, and 90 to 290 parts of water. The styrene-acrylic emulsion is prepared from the raw materials through the emulsion polymerization method. The styrene-acrylic emulsion for the surface coating of the coated paper can meet the requirements on high performance and environmental protection of the papermaking coating. The styrene-acrylic emulsion can be used for obviously improving the water resistance of the coated paper and improving the coating glossiness of the paper.
Description
Technical field
The present invention relates to a kind of styrene-acrylate emulsion for surface coatings, be applied to the painting coating of White Board.
Background technology
Emulsion is widely used in the bonding of paper coating, in application process, more and more higher to the performance requriements of emulsion.Along with improvement and the development of emulsion applications Technology, require emulsion to there is good technique suitability.Emulsion applications can obviously strengthen the water resisting property of paper in paper coating, improves the coating glossiness of paper.
At present, existing emulsion, after paper, gloss difference, the water resisting property of paper can not meet the demands, as? the technology of patent report.
Summary of the invention
The object of the invention is the styrene-acrylate emulsion for surface coatings of coated paper proposing, to overcome the defect of prior art.
Styrene-acrylate emulsion for surface coatings of coated paper of the present invention, is with the raw material of following parts by weight proportioning, by emulsion polymerization way, prepares:
Described mix monomer is by the monomer composition of following parts by weight:
Said seed emulsion is with the raw material of following parts by weight proportioning, by emulsion polymerization way, prepares:
Described mix monomer II is by the monomer composition of following parts by weight:
85～95 parts of (methyl) vinylbenzene
5～15 parts of (methyl) acrylate
Said polyvinyl alcohol is selected from least one in polyvinyl alcohol 0588,1788 or 2488;
Said polyoxyethylene nonylphenol ether is selected from least one in Nonyl pheno (7) ether, Nonyl pheno (9) ether, Nonyl pheno (10) ether or Nonyl pheno (15) ether;
Said polypropylene glycol is selected from polypropylene glycol PPG-200, at least one in PPG-400 or PPG-600;
Said (methyl) acrylate is selected from methyl acrylate, ethyl propenoate, n-butyl acrylate, isobutyl acrylate, ethyl acrylate, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, n-BMA, methacrylic acid-2-ethylhexyl, acrylic or methacrylic acid C
8～C
16at least one in alkyl ester, preferably n-butyl acrylate, methyl methacrylate or ethyl acrylate;
Described emulsifying agent is that anion surfactant and nonionogenic tenside are composited, and weight ratio is: anion surfactant: nonionogenic tenside=1: 0.4～2.0;
Said nonionogenic tenside is selected from Witconol AL 69-66, anhydrous sorbitol tristearate (this dish 65), glycol fatty acid ester, propylene glycol fatty acid ester, anhydrous sorbitol list hard fatty acid ester (this dish 60), sorbitan monooleate (span 80), Diethylene Glycol fatty acid ester, anhydrous sorbitol monopalmitate (this dish 40), polyoxytrimethylene hard fatty acid ester, sorbitan mono-laurate (this dish 20), polyoxyethylene hard fatty acid ester, lauric acid polyoxyethylene ester, polyoxyethylene (4) anhydrous sorbitol list hard fatty acid ester (Tween61), polyoxyethylene (5) sorbitan monooleate (sorbimacrogol oleate100), polyoxyethylene (20) anhydrous sorbitol tristearate (polysorbate65), polyoxyethylene (20) Witconol AL 69-66 (polysorbate85), polyoxyethylene monoleate, fatty alcohol amine polyoxyethylene ether, alkylphenol polyoxyethylene, polyoxyethylene mono-laurate, polyoxyethylene castor oil, polyoxyethylene (4) sorbitan mono-laurate (tween 21), polyoxyethylene (20) anhydrous sorbitol list hard fatty acid ester (polysorbate60), polyoxyethylene (20) sorbitan monooleate (tween 80), polyoxyethylene (20) anhydrous sorbitol monopalmitate (polysorbate40), at least one in polyoxyethylene (20) sorbitan mono-laurate (polysorbas20), preferably sorbitan monooleate (span 80), polyoxyethylene (20) sorbitan monooleate (tween 80) or sorbitan mono-laurate (this dish 20),
Said anion surfactant is selected from C
10～C
20sodium alkyl benzene sulfonate, C
10～C
20sodium alkyl naphthalene sulfonate, C
10～C
20at least one in sodium alkyl sulfate, dialkyl group-2-sodium sulfosuccinate, dicyclohexyl-2-sodium sulfosuccinate, succinic acid sodium sulfonate, sodium oleate, potassium oleate or Emulphor FM, preferably Sodium dodecylbenzene sulfonate, dodecyl sodium naphthalene sulfonate or dialkyl group-2-sodium sulfosuccinate;
Described initiator is selected from least one in Potassium Persulphate, Sodium Persulfate or ammonium persulphate;
Described promotor is selected from least one in Methacrylamide ethyl ethylene-urea or diacetone-acryloamide(DAA);
Described function monomer is selected from least one in 2-acrylamide-2-methyl propane sulfonic or kautschin;
Described alkali aqueous solution is selected from least one in aqueous sodium hydroxide solution, potassium hydroxide aqueous solution, ammonium hydroxide aqueous solution, and weight concentration is 10～25%;
The preparation method of above-mentioned styrene-acrylate emulsion for surface coatings of coated paper, comprises the steps:
1) seed emulsion is synthetic:
A) (methyl) acrylate, (methyl) vinylbenzene are mixed, obtain mix monomer II;
B) polyvinyl alcohol, polyoxyethylene nonylphenol ether, polypropylene glycol, initiator and water are mixed, under 70～90 ℃ of conditions, be incubated 10～30 minutes, add the mix monomer II of step in a);
C) under 70～90 ℃ of conditions, be incubated 1～3 hour, be cooled to 10～35 ℃, filter, collect filtrate, obtain seed emulsion;
Gained seed emulsion weight solid content is 20～40%, median size 20～40nm (using Malven particle instrument to record), pH=2～6 (using PHS-3C Accurate pH instrumentation to obtain);
2) styrene-acrylate emulsion for surface coatings of coated paper:
A) (methyl) acrylate, (methyl) vinylbenzene (methyl) vinylformic acid and kautschin are mixed, obtain mix monomer.
B) initiator of the emulsifying agent of gross weight 2.5～45.5%, gross weight 2.4～62.5% and gross weight 3.4～11.2% water are mixed, obtain aqueous solution I;
C) water of promotor and gross weight 3.4～11.2% is mixed, obtain aqueous solution II;
D) 0 ~ 2 part of 2-acrylamide-2-methyl propane sulfonic and 10 parts of water are mixed, the alkali aqueous solution neutralization by gross weight 5～10%, obtains aqueous solution III;
E) mix monomer is mixed with the water of the emulsifying agent of gross weight 16.5～91.0%, the initiator of gross weight 7.4～91.0% and gross weight 17.2～55.6%, obtain aqueous solution IV;
F) seed emulsion is mixed with the water of the emulsifying agent of gross weight 3.8～77.0%, the initiator of gross weight 3.8～87% and gross weight 6.8～81.5%, 60 ℃～95 ℃ are reacted 10～40 minutes, then drip d) mixed solution III in step and, e) the mixed solution IV in step, drips 1～3 hour;
Then, at 50～80 ℃, drip the step b of gross weight 30～35% simultaneously) in mixed solution I and step c) in mixed solution II, drip 10～30 minutes, then drip the step b of surplus simultaneously) in mixed solution, drip 10～30 minutes;
G) 50～80 ℃ are incubated 1～2 hour, are cooled to 10～35 ℃, and with the alkali aqueous solution neutralization of surplus, pH=6～9, filter, and collect filtrate, acquisition styrene-acrylate emulsion for surface coatings.Gained emulsion median size 50～150nm (using Malven particle instrument to record).
Said styrene-acrylate emulsion for surface coatings of coated paper, can be applicable to the painting coating of White Board.
The present invention finds to pass through on benzene emulsion emulsion particle surface successively graft-promoting additive, the resulting emulsion of function monomer, is applied to the painting coating of White Board, not only can improve the coating gloss of paper, and can increase substantially the water resisting property of paper.This may be owing to adding hydrophobic function monomer kautschin at benzene emulsion, can greatly improve the water tolerance of emulsion and be applied in coating paper surface, improving the water resisting property of paper.And another function monomer 2-acrylamide-2-methyl propane sulfonic makes emulsion particle surface have great amount of hydroxy group and sulfonic group to form strong hydrogen bond action with fiber surface, strengthen the surface strength of paper, active group in promotor can react with substrate surface simultaneously, the combination degree that improves each component of coating, is improved the coating glossiness of paper.
Styrene-acrylate emulsion for surface coatings of coated paper of the present invention is a kind of product that can meet high-performance for papermaking paint, environmental protection.This product is applied in the painting coating of White Board, can obviously strengthen the water resisting property of White Board, improves the coating glossiness of paper.
Embodiment
Embodiment 1
1) seed emulsion is synthetic:
A) 15g n-butyl acrylate, 85g vinylbenzene are mixed, obtain mix monomer II.
B) by 10g polyvinyl alcohol 0588(Guangzhou Qi Sheng Chemical Co., Ltd.), 10g Nonyl pheno (7) ether (Guangzhou Jun Xin Chemical Industry Science Co., Ltd), 0.1g polypropylene glycol PPG-200(Jiangsu Hai'an Petrochemical Plant), 0.5g Potassium Persulphate and 180.9g deionized water mix, under 90 ℃ of conditions, be incubated 10 minutes, add the mix monomer II of step in a).
C) under 90 ℃ of conditions, be incubated 1 hour, be cooled to 25 ℃, 100 eye mesh screens filter, obtain seed emulsion, weight solid content: 39.68wt%, median size 39.3nm (using Malven particle instrument to record), pH=5.93 (using PHS-3C Accurate pH instrumentation to obtain).
2) styrene-acrylate emulsion for surface coatings of coated paper is synthetic:
A) 25g n-butyl acrylate, 70g vinylbenzene, 5g vinylformic acid and 1g kautschin are mixed and made into mix monomer.Standby.
B), by 0.05g Sodium dodecylbenzene sulfonate, 0.05g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.1g Potassium Persulphate are dissolved in 10g deionized water, standby;
C) 0.5g Methacrylamide ethyl ethylene-urea is dissolved in to 10g deionized water, standby;
D) 2g2-acrylamide-2-methyl propane sulfonic and 10g water are mixed to the aqueous sodium hydroxide solution that is 25% by 2 gram weight concentration neutralization, PH=7;
E) add 0.4g Sodium dodecylbenzene sulfonate, 0.1g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.2g Potassium Persulphate to become the aqueous solution with 50g deionized water dissolving the mix monomer in a) step, stir 30 minutes, standby;
F) by 4g step 1) in seed emulsion add 0.05g Sodium dodecylbenzene sulfonate, in the aqueous solution of 0.05g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.1g Potassium Persulphate and 24.3g deionized water, under 60 ℃ of conditions, react 40 minutes, then drip d simultaneously) mixed solution and e in step) mixed solution in step, drip 3 hours.50 ℃ of b that simultaneously drip gross weight 33%) mixed solution and the c in step) whole mixed solution in step, drips 30 minutes, then drips the b of surplus simultaneously) mixed solution and 2g 2-hydroxyethyl methacrylate in step, drip 30 minutes;
G) 50 ℃ are incubated 2 hours.Be cooled to 25 ℃, the aqueous sodium hydroxide solution that is 25% by 18 gram weight concentration neutralization, continues to stir 10 minutes.Through 100 eye mesh screens, filter, obtain styrene-acrylate emulsion for surface coatings, weight solid content: 49.72wt%, median size 95nm (using Malven particle instrument to record), pH=6.21 (using PHS-3C Accurate pH instrumentation to obtain).
Embodiment 2
1) seed emulsion is synthetic:
A) 15g n-butyl acrylate, 85g vinylbenzene are mixed, obtain mix monomer II.
B) by 10g polyvinyl alcohol 0588(Guangzhou Qi Sheng Chemical Co., Ltd.), 10g Nonyl pheno (7) ether (Guangzhou Jun Xin Chemical Industry Science Co., Ltd), 0.1g polypropylene glycol PPG-200(Jiangsu Hai'an Petrochemical Plant), 0.5g Potassium Persulphate and 180.9g deionized water mix, under 90 ℃ of conditions, be incubated 10 minutes, add the mix monomer II of step in a).
C) under 90 ℃ of conditions, be incubated 1 hour, be cooled to 25 ℃, 100 eye mesh screens filter, obtain seed emulsion, weight solid content: 39.68wt%, median size 39.3nm (using Malven particle instrument to record), pH=5.93 (using PHS-3C Accurate pH instrumentation to obtain).
2) styrene-acrylate emulsion for surface coatings of coated paper is synthetic:
A) 69g ethyl propenoate, 30g vinyl toluene 1g methacrylic acid and 2g kautschin are mixed and made into mix monomer.Standby.
B), by 0.1g dialkyl group-2-sodium sulfosuccinate, 0.4g sorbitan mono-laurate (this dish 20), 0.5g Sodium Persulfate are dissolved in 10g deionized water.Standby.
C) 1.5g diacetone-acryloamide(DAA) is dissolved in to 10g deionized water.Standby.
D) 1g 2-acrylamide-2-methyl propane sulfonic and 10g water are mixed to the ammonium hydroxide aqueous solution that is 20% by 2 gram weight concentration neutralization, PH=8;
E) mix monomer in a) step is added 1g dodecyl sodium naphthalene sulfonate, 1g sorbitan mono-laurate (this dish 20), 2g Sodium Persulfate become the aqueous solution with 50g deionized water dissolving, stir 30 minutes.Standby.
F) by the seed emulsion in 8g step 1), 0.5g dodecyl sodium naphthalene sulfonate, in the aqueous solution of 1.5g polyoxyethylene monoleate, 2g Sodium Persulfate and 190.0g deionized water, under 95 ℃ of conditions, react 10 minutes, then drip d simultaneously) mixed solution and e in step) mixed solution in step 3 hours.80 ℃ of b that simultaneously drip gross weight 35%) mixed solution and the c in step) whole mixed solution in step, drips 10 minutes, then drips surplus b simultaneously) mixed solution and 1g vinylformic acid-2-hydroxyl ethyl ester in step, drip 10 minutes.
G) 80 ℃ are incubated 1 hour.Be cooled to 25 ℃, the ammonium hydroxide aqueous solution that is 20% by 38 gram weight concentration neutralization, continues to stir 10 minutes.Through 100 eye mesh screens, filter, obtain styrene-acrylate emulsion for surface coatings, solid content: 30.23wt%, median size 75.1nm (using Malven particle instrument to record), pH=8.95 (using PHS-3C Accurate pH instrumentation to obtain).
Embodiment 3
1) seed emulsion is synthetic:
A) 15g n-butyl acrylate, 85g vinylbenzene are mixed, obtain mix monomer II.
B) by 10g polyvinyl alcohol 0588(Guangzhou Qi Sheng Chemical Co., Ltd.), 10g Nonyl pheno (7) ether (Guangzhou Jun Xin Chemical Industry Science Co., Ltd), 0.1g polypropylene glycol PPG-200(Jiangsu Hai'an Petrochemical Plant), 0.5g Potassium Persulphate and 180.9g deionized water mix, under 90 ℃ of conditions, be incubated 10 minutes, add the mix monomer II of step in a).
C) under 90 ℃ of conditions, be incubated 1 hour, be cooled to 25 ℃, 100 eye mesh screens filter, obtain seed emulsion, weight solid content: 39.68wt%, median size 39.3nm (using Malven particle instrument to record), pH=5.93 (using PHS-3C Accurate pH instrumentation to obtain).
2) styrene-acrylate emulsion for surface coatings of coated paper is synthetic:
A) 20g methyl methacrylate, 27g ethyl acrylate, 50g vinyl toluene 3g methacrylic acid and 3g kautschin are mixed and made into mix monomer.Standby.
B), by 0.1g succinic acid sodium sulfonate, 0.2g polyoxytrimethylene hard fatty acid ester, 0.3g ammonium persulphate are dissolved in 10g deionized water.Standby.
C) 0.5g diacetone-acryloamide(DAA), 0.5g Methacrylamide ethyl ethylene-urea are dissolved in to 10g deionized water.Standby.
D) 1g 2-acrylamide-2-methyl propane sulfonic and 10g water are mixed to the potassium hydroxide aqueous solution that is 10% by 2.4 gram weight concentration neutralization, PH=8;
E) add 0.2g potassium oleate, 0.8g Diethylene Glycol fatty acid ester, 1g ammonium persulphate to become the aqueous solution with 50g deionized water dissolving the mix monomer in a) step, stir 30 minutes.Standby.
F) seed emulsion in 15g step 1) is added to 0.8g sodium lauryl sulphate, in the aqueous solution of 0.2g sorbitan monooleate (span 80), 1g ammonium persulphate and 78.65g deionized water, under 75 ℃ of conditions, react 20 minutes, then drip d simultaneously) mixed solution and e in step) mixed solution in step, drip 3 hours.75 ℃ drip gross weight 30%b simultaneously) mixed solution and c in step) whole mixed solution in step, drip 20 minutes, then drip the b of surplus simultaneously) mixed solution and 1.5g methacrylic acid-2-hydroxypropyl acrylate in step, drip 20 minutes;
G) 75 ℃ are incubated 1 hour.Be cooled to 25 ℃, with the potassium hydroxide aqueous solution that 27.6 gram weight concentration are 10%, be neutralized to pH=7.18, continue to stir 10 minutes.Through 100 eye mesh screens, filter, obtain styrene-acrylate emulsion for surface coatings, solid content: 40.35wt%, median size 50.3nm (using Malven particle instrument to record), pH=7.18 (using PHS-3C Accurate pH instrumentation to obtain).
Embodiment 4
1) seed emulsion is synthetic:
A) 15g n-butyl acrylate, 85g vinylbenzene are mixed, obtain mix monomer II.
B) by 10g polyvinyl alcohol 0588(Guangzhou Qi Sheng Chemical Co., Ltd.), 10g Nonyl pheno (7) ether (Guangzhou Jun Xin Chemical Industry Science Co., Ltd), 0.1g polypropylene glycol PPG-200(Jiangsu Hai'an Petrochemical Plant), 0.5g Potassium Persulphate and 180.9g deionized water mix, under 90 ℃ of conditions, be incubated 10 minutes, add the mix monomer II of step in a).
C) under 90 ℃ of conditions, be incubated 1 hour, be cooled to 25 ℃, 100 eye mesh screens filter, obtain seed emulsion, weight solid content: 39.68wt%, median size 39.3nm (using Malven particle instrument to record), pH=5.93 (using PHS-3C Accurate pH instrumentation to obtain).
2) styrene-acrylate emulsion for surface coatings of coated paper is synthetic:
A) 58g n-BMA, 40g vinylbenzene 2g vinylformic acid and 4g kautschin are mixed and made into mix monomer.Standby.
B) by 0.1g dicyclohexyl-2-sodium sulfosuccinate, 0.1g polyoxyethylene (4) anhydrous sorbitol list hard fatty acid ester (Tween61), 0.2g Sodium Persulfate are dissolved in 10g deionized water.Standby.
C) 0.3g diacetone-acryloamide(DAA), 0.4g Methacrylamide ethyl ethylene-urea are dissolved in to 10g deionized water.Standby.
D) 0.5g 2-acrylamide-2-methyl propane sulfonic and 10g water are mixed to the aqueous sodium hydroxide solution that is 15% by 1.5 gram weight concentration neutralization, PH=8;
E) add 0.6g dicyclohexyl-2-sodium sulfosuccinate, 0.8g polyoxyethylene (4) anhydrous sorbitol list hard fatty acid ester (Tween61), 1.3g Sodium Persulfate to become the aqueous solution with 50g deionized water dissolving the mix monomer in a) step, stir 30 minutes.Standby.
F) seed emulsion in 11g step 1) is added to 0.5g Sodium palmityl sulfate, in the aqueous solution of 0.7g polyoxyethylene (4) anhydrous sorbitol list hard fatty acid ester (Tween61), 1.5g Sodium Persulfate and 47.0g deionized water, under 65 ℃ of conditions, react 15 minutes, then drip d simultaneously) mixed solution e in step) mixed solution in step, drip 3 hours.65 ℃ of b that simultaneously drip gross weight 33%) mixed solution and the c in step) whole mixed solution in step, drips 15 minutes, then drips the b of surplus simultaneously) mixed solution in step and 1.8g 2-hydroxyethyl methacrylate 15 minutes.
G) 65 ℃ are incubated 1 hour.Be cooled to 25 ℃, the aqueous sodium hydroxide solution that is 15% by 23.5 gram weight concentration neutralization, continues to stir 10 minutes.Through 100 eye mesh screens, filter, obtain styrene-acrylate emulsion for surface coatings, solid content: 45.09wt%, median size 81.2nm (using Malven particle instrument to record), pH=7.89 (using PHS-3C Accurate pH instrumentation to obtain).
Embodiment 5
1) seed emulsion is synthetic:
A) 15g n-butyl acrylate, 85g vinylbenzene are mixed, obtain mix monomer II.
B) by 10g polyvinyl alcohol 0588(Guangzhou Qi Sheng Chemical Co., Ltd.), 10g Nonyl pheno (7) ether (Guangzhou Jun Xin Chemical Industry Science Co., Ltd), 0.1g polypropylene glycol PPG-200(Jiangsu Hai'an Petrochemical Plant), 0.5g Potassium Persulphate and 180.9g deionized water mix, under 90 ℃ of conditions, be incubated 10 minutes, add the mix monomer II of step in a).
C) under 90 ℃ of conditions, be incubated 1 hour, be cooled to 25 ℃, 100 eye mesh screens filter, obtain seed emulsion, weight solid content: 39.68wt%, median size 39.3nm (using Malven particle instrument to record), pH=5.93 (using PHS-3C Accurate pH instrumentation to obtain).
2) styrene-acrylate emulsion for surface coatings of coated paper is synthetic:
A) 36g isobutyl acrylate, 60g vinyl toluene 4g methacrylic acid and 2g kautschin are mixed and made into mix monomer.Standby.
B), by 0.2g Emulphor FM, 0.2g Witconol AL 69-66,0.4g Sodium Persulfate are dissolved in 10g deionized water.Standby.
C) 0.5g diacetone-acryloamide(DAA), 0.7g Methacrylamide ethyl ethylene-urea are dissolved in to 10g deionized water.Standby.
D) add 0.3g Emulphor FM, 0.3g Witconol AL 69-66,0.5g Sodium Persulfate and 50g deionized water dissolving to become the aqueous solution mix monomer in a) step, stir 30 minutes.Standby.
E) 1.5g 2-acrylamide-2-methyl propane sulfonic and 10g water are mixed to the potassium hydroxide aqueous solution that is 18% by 2.45 gram weight concentration neutralization, PH=7;
F) seed emulsion in 12g step 1) is added to 0.3g hexadecyl benzene sulfonic acid sodium salt, in the aqueous solution of 0.6g Witconol AL 69-66,0.6g Sodium Persulfate and 119.27g deionized water, under 70 ℃ of conditions, react 15 minutes, then drip d simultaneously) mixed solution and e in step) mixed solution in step, drip 3 hours.70 ℃ drip 33% b simultaneously) mixed solution and c in step) whole mixed solution in step, drip 25 minutes, then drip the b of surplus simultaneously) mixed solution in step and 1.4g 2-hydroxyethyl methacrylate 25 minutes;
G) 70 ℃ are incubated 1 hour.Be cooled to 25 ℃, the potassium hydroxide aqueous solution that is 18% by 32.55 gram weight concentration neutralization, continues to stir 10 minutes.Through 100 eye mesh screens, filter, obtain styrene-acrylate emulsion for surface coatings, solid content: 34.95wt%, median size 65.1nm (using Malven particle instrument to record), pH=8.18 (using PHS-3C Accurate pH instrumentation to obtain).
Embodiment 6
Comparative example: the emulsion of preparing by the method for CN101280035A
By following formulated coating
95 grades of water-ground limestone 400g
Brazil china clay 100g
Emulsion (dry weight) 50g
Experimentation: 1) 95 grades of water-ground limestones, Brazilian china clay and appropriate amount of deionized water are added to high speed dispersor, high speed dispersion 20～30min after stirring, qualified to fineness, under low speed, add emulsion, after stirring, discharging, 100 eye mesh screens filter.2) will adopt the coating of embodiment 1～5 and the preparation of comparative example emulsion to use 10# spreading rod at 75g/m
2on art base paper, be coated with glue spread 20g/m
2, standby.3) coating rolling condition: get respectively twice of the hard press polish of small-sized rolling press for above-mentioned coating pattern (0.3Mpa, 85 ℃).Standby.
Deionized water is appropriate, and adjusting coating weight solid content is 65%, and its physical index is as follows:
According to coating physical index, think, under similarity condition, compare with contrast sample latex, embodiment latex dope viscosity that series samples is joined is all lower.
Coating pattern detects data
In table, data can obtain, under similarity condition, compare with contrast sample, and embodiment series latex coating pattern, print gloss and coating gloss are higher, and other index is more approaching.
From above-mentioned application result, can find out: use the styrene-acrylate emulsion for surface coatings of coated paper of the embodiment of the present invention 1～5 preparation, compare with comparative example, be applied to the painting coating of White Board, can significantly improve the coating glossiness of White Board.
Claims (4)
1. styrene-acrylate emulsion for surface coatings of coated paper, is characterized in that, is with the raw material of following parts by weight proportioning, by emulsion polymerization way, prepares:
Described mix monomer is by the monomer composition of following parts by weight:
Said seed emulsion is with the raw material of following parts by weight proportioning, by emulsion polymerization way, prepares:
Described mix monomer II is by the monomer composition of following parts by weight:
85～95 parts of (methyl) vinylbenzene
5～15 parts of (methyl) acrylate.
2. styrene-acrylate emulsion for surface coatings of coated paper according to claim 1, it is characterized in that, said polyoxyethylene nonylphenol ether is selected from least one in Nonyl pheno (7) ether, Nonyl pheno (9) ether, Nonyl pheno (10) ether or Nonyl pheno (15) ether;
Said polypropylene glycol is selected from polypropylene glycol PPG-200, at least one in PPG-400 or PPG-600;
Said (methyl) acrylate is selected from methyl acrylate, ethyl propenoate, n-butyl acrylate, isobutyl acrylate, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, n-BMA, acrylic or methacrylic acid C
8～C
16at least one in alkyl ester;
Described emulsifying agent is that anion surfactant and nonionogenic tenside are composited, and weight ratio is: anion surfactant: nonionogenic tenside=1: 0.4～2.
3. styrene-acrylate emulsion for surface coatings of coated paper according to claim 2, is characterized in that, said nonionogenic tenside is selected from Witconol AL 69-66, anhydrous sorbitol tristearate (this dish 65), glycol fatty acid ester, propylene glycol fatty acid ester, anhydrous sorbitol list hard fatty acid ester (this dish 60), sorbitan monooleate (span 80), Diethylene Glycol fatty acid ester, anhydrous sorbitol monopalmitate (this dish 40), polyoxytrimethylene hard fatty acid ester, sorbitan mono-laurate (this dish 20), polyoxyethylene hard fatty acid ester, lauric acid polyoxyethylene ester, polyoxyethylene (4) anhydrous sorbitol list hard fatty acid ester (Tween61), polyoxyethylene (5) sorbitan monooleate (sorbimacrogol oleate100), polyoxyethylene (20) anhydrous sorbitol tristearate (polysorbate65), polyoxyethylene (20) Witconol AL 69-66 (polysorbate85), polyoxyethylene monoleate, fatty alcohol amine polyoxyethylene ether, alkylphenol polyoxyethylene, polyoxyethylene mono-laurate, polyoxyethylene castor oil, polyoxyethylene (4) sorbitan mono-laurate (tween 21), polyoxyethylene (20) anhydrous sorbitol list hard fatty acid ester (polysorbate60), polyoxyethylene (20) sorbitan monooleate (tween 80), polyoxyethylene (20) anhydrous sorbitol monopalmitate (polysorbate40), at least one in polyoxyethylene (20) sorbitan mono-laurate (polysorbas20),
Said anion surfactant is selected from C
10～C
20sodium alkyl benzene sulfonate, C
10～C
20sodium alkyl naphthalene sulfonate, C
10～C
20at least one in sodium alkyl sulfate, dialkyl group-2-sodium sulfosuccinate, dicyclohexyl-2-sodium sulfosuccinate, succinic acid sodium sulfonate, sodium oleate, potassium oleate or Emulphor FM.
4. styrene-acrylate emulsion for surface coatings of coated paper according to claim 1, is characterized in that, described initiator is selected from least one in Potassium Persulphate, Sodium Persulfate or ammonium persulphate;
Described promotor is selected from least one in Methacrylamide ethyl ethylene-urea or diacetone-acryloamide(DAA);
Described function monomer is selected from least one in 2-acrylamide-2-methyl propane sulfonic or kautschin;
Described alkali aqueous solution is selected from least one in aqueous sodium hydroxide solution, potassium hydroxide aqueous solution, ammonium hydroxide aqueous solution, and weight concentration is 10～25%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223800.0A CN102718929B (en) | 2012-06-29 | 2012-06-29 | Styrene-acrylic emulsion for surface coating of coated paper and preparation method of styrene-acrylic emulsion |
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| CN101704930A (en) * | 2009-09-29 | 2010-05-12 | 上海东升新材料有限公司 | Styrene-acrylate emulsion for surface coatings of coated paper |
| CN101817903A (en) * | 2010-04-29 | 2010-09-01 | 兖州明升新材料有限公司 | Propyl benzene latex with fine grain diameter for coating paper surface paint and preparation method and application thereof |
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| CN101704930A (en) * | 2009-09-29 | 2010-05-12 | 上海东升新材料有限公司 | Styrene-acrylate emulsion for surface coatings of coated paper |
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