CN102875718B - A kind of fluorine-containing cationic benzene emulsion and preparation method thereof - Google Patents
A kind of fluorine-containing cationic benzene emulsion and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of fluorine-containing cationic benzene emulsion and preparation method thereof, preparation method comprises the following steps: a) by the mixing of (methyl) acrylate, (methyl) vinylbenzene and (methyl) fluoroalkyl base esters monomer, obtain mix monomer; B) emulsifying agent, initiator and water are mixed, obtain aqueous solution B; C) by cationic monomer and water mixing, cationic monomer solution C is obtained; D) mix monomer in a) step is added emulsifying agent, initiator and water, mixing, obtain mixed monomer solution D; E) mix monomer in a) step is added emulsifying agent, initiator and water in, reaction, then drips mixed monomer solution D and aqueous solution B and cationic monomer solution C, is then incubated, with liquid caustic soda neutralization, described fluorine-containing cationic benzene emulsion can be obtained.The present invention obviously can strengthen the surface strength of paper, significantly reduces the Cobb value of fluting board.
Description
Technical field
The present invention relates to a kind of fluorine-containing cationic benzene emulsion, be applied to fluting board top sizing.
Background technology
Along with the increase gradually of secondary stock ratio in pulping and paper-making raw material, and paper machine white water circulation closed degree increases, the environment of manufacturing paper with pulp of wet end is day by day severe, cationic surface-sizing agent is subject to the favor of people day by day, present plant adopts weak anionic styrene-acrylic surface sizing agent as a kind of Surface Size of special raising water resisting property, need in use procedure to add the retention that Tai-Ace S 150 increases Surface Size, operate cumbersome.
Emulsion is widely used in paper for surface sizing, in application process, more and more higher to the performance requriements of emulsion.Along with improvement and the development of emulsion applications Technology, require that emulsion has good technique suitability, wherein, the most important or cohesiveness of benzene emulsion.Emulsion applications can significantly improve the surface strength of paper in paper coating, significantly falls the Cobb value of corrugation paperboard.Prior art such as benzene emulsion in Chinese patent CN102432731A reduces obvious not, to requiring that high paper does not reach index because of the paper Cobb value not having fluoro-containing group to make.
Summary of the invention
The object of this invention is to provide a kind of fluorine-containing cationic benzene emulsion and preparation method thereof, to overcome the existing defect unexpectedly seeming to exist.
The preparation method of described fluorine-containing cationic top sizing benzene emulsion, is characterized in that, comprise the following steps:
A) 25 ~ 60 weight parts (methyl) acrylate, 40 ~ 70 weight parts (methyl) vinylbenzene and 1 ~ 5 weight part (methyl) fluoroalkyl base esters monomer are mixed, obtain mix monomer;
B) 0.1 ~ 0.5 parts by weight Emulsifier, 0.1 ~ 0.7 weight part initiator and 5 weight parts waters are mixed, obtain aqueous solution B;
C) by 0.6 ~ 1.8 weight part cationic monomer and the mixing of 10 weight parts waters, cationic monomer solution C is obtained;
D) mix monomer in 60 ~ 85 weight parts a) step is added the water mixing of 0.4 ~ 1.6 parts by weight Emulsifier, 0.3 ~ 3 weight part initiator and 60 weight parts waters, obtain mixed monomer solution D;
E) mix monomer in 5 ~ 20 weight parts a) step is added 0.1 ~ 2 parts by weight Emulsifier, in the water of 0.1 ~ 2 weight part initiator and 30 ~ 100 weight parts, 60 DEG C ~ 90 DEG C, react 20 ~ 50 minutes under condition, then 100 weight part d are dripped) the mixed monomer solution D of step, time for adding is 1 ~ 4 hour, drip 100 weight part b simultaneously) aqueous solution B of step and 100 weight part c) the cationic monomer solution C of step, then 66 ~ 92 DEG C are incubated 3 ~ 5 hours, be cooled to 25 DEG C, pH=2 ~ 6 are neutralized to liquid caustic soda, filter with 325 eye mesh screens, described fluorine-containing cationic benzene emulsion can be obtained,
Said emulsifying agent is that nonionogenic tenside is composited.
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, sorbitan 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) sorbitan monopalmitate (polysorbate40), at least one in polyoxyethylene (20) sorbitan mono-laurate (polysorbas20).
Said initiator is selected from least one in Potassium Persulphate, Sodium Persulfate, ammonium persulphate.
Said (methyl) acrylate be selected from vinyl cyanide, methyl acrylate, ethyl propenoate, n-butyl acrylate, isobutyl acrylate, ethyl acrylate, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, n-BMA, methacrylic acid-2-ethylhexyl, at least one; Said cross-linking monomer is selected from least one in vinylformic acid-2-hydroxyl ethyl ester, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate, Hydroxypropyl methacrylate; Said promotor is selected from least one in Methacrylamide ethyl ethylene-urea, diacetone-acryloamide(DAA).
Said fluorochemical monomer is at least one in Perfluoroalkyl acrylate, dodecafluoroheptyl methacrylate, methacrylic acid 19 fluorine ester in the ninth of the ten Heavenly Stems.
Said cationic monomer is (2,3) epoxypropyltrimethylchloride chloride (ETA).
Said fluorochemical monomer is at least one in Perfluoroalkyl acrylate, dodecafluoroheptyl methacrylate, methacrylic acid 19 fluorine ester in the ninth of the ten Heavenly Stems.
Said basic solution is selected from least one in aqueous sodium hydroxide solution, potassium hydroxide aqueous solution, ammonium hydroxide aqueous solution, and weight solid content is 25%.
Said fluorine-containing cationic benzene emulsion is applied to fluting board top sizing.
The essential characteristic of Inventive polymers emulsion is, emulsion particle has introduced the quaternary ammonium salt group with strongly hydrophilic, make that its molecular chain has many center of positive charge, just generation ionic linkage can be combined by the negative charge on fiber without the need to adding Tai-Ace S 150, and add hydrogen bond center simultaneously, hydrogen bond is generated with the non-ionic surface on fiber, improve the water-soluble of emulsion, improve emulsion to keep at paper surface fibers adsorption, strengthen the surface strength of paper significantly, further, because the existence of fluoro-containing group, the Cobb value of fluting board can significantly be reduced.
The present invention is by (methyl) fluoroalkyl base ester class, (methyl) vinylbenzene, (methyl) acrylate, cross-linking monomer, cationic monomer containing the quaternary ammonium salt group of strongly hydrophilic is obtained by seeded emulsion polymerization mode, be applied to paper for surface sizing, compared with common cation emulsion, except emulsion particle is surperficial or polymkeric substance itself is positively charged, can directly and fibers adsorption stay paper surface, without the need to adding Tai-Ace S 150, can significantly improve outside the surface strength of paper, the introducing of the fluoro-containing group of low surface energy, be positioned in film process on the surface of film, improve the water tolerance of emulsion polymer significantly, reduce the Cobb value of fluting board significantly.
Embodiment
Embodiment 1
The synthesis of fluorine-containing cationic benzene emulsion:
A) 40g n-butyl acrylate, 58g vinylbenzene, 5g vinylformic acid and 2g Perfluoroalkyl acrylate are mixed and made into mix monomer for subsequent use.
B) by 0.2g glycol fatty acid ester, 0.05g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.3g Potassium Persulphate are dissolved in 10g deionized water.For subsequent use.
C) by 0.8g(2,3) epoxypropyltrimethylchloride chloride (ETA) is dissolved in 20 deionized waters.For subsequent use.
D) by 70ga) mix monomer in step adds 0.4g glycol fatty acid ester, 0.3g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.4g Potassium Persulphate become the aqueous solution with 40g deionized water dissolving, high-speed stirring 30 minutes.For subsequent use.
E) by 30ga) mix monomer in step adds 0.05g glycol fatty acid ester, in the aqueous solution of 0.1g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.3g Potassium Persulphate and 25g deionized water, react 40 minutes at 80 DEG C, then drip mixed solution in d) step 3 hours.85 DEG C drip mixed solution in b) step and mixed solution c) in step simultaneously.
F) 90 DEG C are incubated 2 hours.Be cooled to 25 DEG C, with the neutralization of 20g aqueous sodium hydroxide solution, continue stirring 10 minutes.Filter through 325, obtain fluorine-containing cationic benzene emulsion, solid content: 30wt%, median size 157nm (using Malven particle instrument to record), pH=3.13 (using PHS-3C Accurate pH to measure).
Embodiment 2
The synthesis of fluorine-containing cationic benzene emulsion:
A) 15g n-butyl acrylate, 75g vinylbenzene, 5g methacrylic acid and 5g dodecafluoroheptyl methacrylate are mixed and made into mix monomer for subsequent use.
B) by 0.23g glycol fatty acid ester, 0.14g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.2g Potassium Persulphate are dissolved in 10g deionized water.For subsequent use.
C) by 0.65g(2,3) epoxypropyltrimethylchloride chloride (ETA) is dissolved in 20 deionized waters.For subsequent use.
D) by 60ga) mix monomer in step adds 0.5g glycol fatty acid ester, 0.8g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.5g Potassium Persulphate become the aqueous solution with 30g deionized water dissolving, high-speed stirring 30 minutes.For subsequent use.
E) by 40ga) mix monomer in step adds 0.22g glycol fatty acid ester, in the aqueous solution of 0.36g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.3g Potassium Persulphate and 15g deionized water, react 40 minutes at 85 DEG C, then drip mixed solution in d) step 3 hours.50 DEG C drip mixed solution in b) step and mixed solution c) in step simultaneously.
F) 90 DEG C are incubated 2 hours.Be cooled to 25 DEG C, with the neutralization of 20g aqueous sodium hydroxide solution, continue stirring 10 minutes.Filter through 325, obtain cationic styrene-acrylic emulsion, solid content: 34wt%, median size 209nm (using Malven particle instrument to record), pH=4.55 (using PHS-3C Accurate pH to measure).
Embodiment 3
The synthesis of fluorine-containing cationic benzene emulsion:
A) 15g n-butyl acrylate, 65g vinylbenzene, 15g vinylformic acid and 5g Perfluoroalkyl acrylate are mixed and made into mix monomer for subsequent use.
B) by 0.2g glycol fatty acid ester, 0.2g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.25g Potassium Persulphate are dissolved in 10g deionized water.For subsequent use.
C) by 1.5g(2,3) epoxypropyltrimethylchloride chloride (ETA) is dissolved in 20 deionized waters.For subsequent use.
D) by 80ga) mix monomer in step adds 0.6g glycol fatty acid ester, 0.3g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.3g Potassium Persulphate become the aqueous solution with 40g deionized water dissolving, high-speed stirring 30 minutes.For subsequent use.
E) by 20ga) mix monomer in step adds 0.2g glycol fatty acid ester, in the aqueous solution of 0.23g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.3g Potassium Persulphate and 15g deionized water, react 45 minutes at 85 DEG C, then drip mixed solution in d) step 2.5 hours.85 DEG C drip mixed solution in b) step and mixed solution c) in step simultaneously.
F) 90 DEG C are incubated 2 hours.Be cooled to 25 DEG C, with the neutralization of 20g aqueous sodium hydroxide solution, continue stirring 10 minutes.Filter through 325, obtain cationic styrene-acrylic emulsion, solid content: 35wt%, median size 189nm (using Malven particle instrument to record), pH=3.34 uses PHS-3C Accurate pH to measure).
Embodiment 4
The synthesis of fluorine-containing cationic benzene emulsion:
A) 10g n-butyl acrylate, 70g vinylbenzene, 18g vinylformic acid and 3g Perfluoroalkyl acrylate are mixed and made into mix monomer for subsequent use.
B) by 0.4g glycol fatty acid ester, 0.3g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.25g Potassium Persulphate are dissolved in 10g deionized water.For subsequent use.
C) by 2.1g(2,3) epoxypropyltrimethylchloride chloride (ETA) is dissolved in 20 deionized waters.For subsequent use.
D) by 80ga) mix monomer in step adds 0.5g glycol fatty acid ester, 0.5g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.2g Potassium Persulphate become the aqueous solution with 30g deionized water dissolving, high-speed stirring 30 minutes.For subsequent use.
E) by 20ga) mix monomer in step adds 0.4g glycol fatty acid ester, in the aqueous solution of 0.32g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.5g Potassium Persulphate and 25g deionized water, react 45 minutes at 85 DEG C, then drip mixed solution in d) step 2 hours.85 DEG C drip mixed solution in b) step and mixed solution c) in step simultaneously.
F) 92 DEG C are incubated 2 hours.Be cooled to 25 DEG C, with the neutralization of 20g aqueous sodium hydroxide solution, continue stirring 10 minutes.Filter through 325, obtain cationic styrene-acrylic emulsion, solid content: 33.4wt%, median size 178nm (using Malven particle instrument to record), pH=7.43 uses PHS-3C Accurate pH to measure).
Embodiment 5
The synthesis of fluorine-containing cationic benzene emulsion:
A) 15g n-butyl acrylate, 80g vinyl toluene, 3g vinylformic acid and 2g methacrylic acid 19 fluorine ester in the ninth of the ten Heavenly Stems are mixed and made into mix monomer for subsequent use.
B) by 0.12g glycol fatty acid ester, 0.34g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.4g Potassium Persulphate are dissolved in 10g deionized water.For subsequent use.
C) by 0.35g(2,3) epoxypropyltrimethylchloride chloride (ETA) is dissolved in 20 deionized waters.For subsequent use.
D) by 90ga) mix monomer in step adds 0.6g glycol fatty acid ester, 0.9g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.4g Potassium Persulphate become the aqueous solution with 30g deionized water dissolving, high-speed stirring 30 minutes.For subsequent use.
E) by 10ga) mix monomer in step adds 0.32g glycol fatty acid ester, in the aqueous solution of 0.45g polyoxyethylene (20) sorbitan monooleate (tween 80), 0.2g Potassium Persulphate and 15g deionized water, react 40 minutes at 75 DEG C, then drip mixed solution in d) step 3 hours.50 DEG C drip mixed solution in b) step and mixed solution c) in step simultaneously.
F) 92 DEG C are incubated 2.5 hours.Be cooled to 25 DEG C, with the neutralization of 20g aqueous sodium hydroxide solution, continue stirring 10 minutes.Filter through 325, obtain cationic styrene-acrylic emulsion, solid content: 32.9wt%, median size 258nm (using Malven particle instrument to record), pH=2.35 (using PHS-3C Accurate pH to measure).
Embodiment 6
In the applying glue of fluting board upper surface:
Comparative example: the sizing agent prepared by Chinese patent CN102432731A method, solid content is 20wt%
By the sizing agent of embodiment 1 ~ 5 formula preparation, be diluted to 20wt% with deionized water
The preparation of glue application solution: prepare 500 grams of 10wt% Sumstar 190 aqueous solution, be warming up to 90 DEG C, gelatinization 20 minutes, is cooled to 40 DEG C, add the sizing agent (Sumstar 190 (doing): sizing agent (wetting)=50:4) of embodiment 1 ~ 5 formula preparation again, then be diluted with water to 6wt%.
The preparation of comparative example glue application solution: prepare 500 grams of 10wt% Sumstar 190 aqueous solution, be warming up to 90 DEG C, gelatinization 20 minutes, is cooled to 40 DEG C, add sizing agent (Sumstar 190 (doing): sizing agent (wetting)=50:4) prepared by comparative example formula again, glue application solution solid content controls at 8wt%.
Cobb pH-value determination pH:
Adopt the XSH type of Hangzhou Qingtong Boke Automation Technology Co., Ltd. suddenly can detect pattern to be measured by GB/T1540-1989 method by absorptivity determinator.
In the applying glue of fluting board upper surface: ring crush intensity measures:
The CT300A compressive strength tester of Hangzhou Qingtong Boke Automation Technology Co., Ltd. is adopted to detect pattern to be measured.
In upper sheet surface applying glue:
Use the glue application solution of comparative example formulated to be coated with 10# spreading rod on 120 grams of Corrugating Base Papers, glue spread is 2g/m
2, dry 30 seconds or 120 seconds in 110 DEG C of baking ovens respectively after coating, take out, be cooled to room temperature and measure.
Use the glue application solution of embodiment 1 ~ 5 formulated to be coated with 10# spreading rod on 120 grams of Corrugating Base Papers, glue spread is 1.6g/m
2, dry 30 seconds or 120 seconds in 110 DEG C of baking ovens respectively after coating, take out, be cooled to room temperature and measure.
Use the glue application solution of comparative example formulated to be coated with 10# spreading rod on 120 grams of body paper, glue spread is 2g/m
2, dry 30 seconds or 120 seconds in 110 DEG C of baking ovens respectively after coating, take out, be cooled to room temperature and measure.
Use the glue application solution of embodiment 1 ~ 5 formulated to be coated with 10# spreading rod on 120 grams of Corrugating Base Papers, glue spread is 1.6g/m
2, dry 30 seconds or 120 seconds in 110 DEG C of baking ovens respectively after coating, take out, be cooled to room temperature and measure.See the following form.
As can be seen from above-mentioned application result: use sizing agent prepared by the embodiment of the present invention 1 ~ 5, surface strength significantly improves the Cobb value that significantly can reduce paper and the surface strength improving paper compared with comparative example, reaches application requiring.
Claims (8)
1. a preparation method for fluorine-containing cationic benzene emulsion, is characterized in that, comprises the following steps:
A) by the mixing of (methyl) acrylate, (methyl) vinylbenzene, (methyl) vinylformic acid and (methyl) fluoroalkyl base esters monomer, mix monomer is obtained;
B) emulsifying agent, initiator and water are mixed, obtain aqueous solution B;
C) by cationic monomer and water mixing, cationic monomer solution C is obtained;
D) mix monomer in a) step is added emulsifying agent, initiator and water, mixing, obtain mixed monomer solution D;
E) mix monomer in a) step is added in emulsifying agent, initiator and water, reaction, the cationic monomer solution C of the mixed monomer solution D then dripping d) step and the aqueous solution B dripping b) step and c) step, then be incubated, with liquid caustic soda neutralization, described fluorine-containing cationic benzene emulsion can be obtained.
2. method according to claim 1, is characterized in that, said emulsifying agent 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, sorbitan 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) sorbitan monopalmitate (polysorbate40), at least one in polyoxyethylene (20) sorbitan mono-laurate (polysorbas20).
3. method according to claim 1, is characterized in that, said initiator is selected from least one in Potassium Persulphate, Sodium Persulfate or ammonium persulphate.
4. method according to claim 1, it is characterized in that, said (methyl) acrylate is selected from least one in methyl acrylate, ethyl propenoate, n-butyl acrylate, isobutyl acrylate, ethyl acrylate, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, n-BMA, methacrylic acid-2-ethylhexyl.
5. the method according to any one of Claims 1 to 4, it is characterized in that, said (methyl) fluoroalkyl base esters monomer is at least one in Perfluoroalkyl acrylate, dodecafluoroheptyl methacrylate, methacrylic acid 19 fluorine ester in the ninth of the ten Heavenly Stems;
Said cationic monomer is (2,3) epoxypropyltrimethylchloride chloride (ETA).
6. method according to claim 1, is characterized in that, said basic solution is selected from least one in aqueous sodium hydroxide solution, potassium hydroxide aqueous solution, ammonium hydroxide aqueous solution, and weight solid content is 25%.
7. the fluorine-containing cationic benzene emulsion that according to any one of claim 1 ~ 6 prepared by method.
8. the application of fluorine-containing cationic benzene emulsion according to claim 7, is characterized in that, for fluting board top sizing.
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| CN105060729B (en) * | 2015-07-31 | 2018-06-01 | 安徽和润特种玻璃有限公司 | A kind of wear-resisting antistatic film of resistant for anti-dazzle glas |
| CN106563446A (en) * | 2016-11-10 | 2017-04-19 | 上海纳米技术及应用国家工程研究中心有限公司 | Light carrier catalyst for catalytically eliminating nitric oxide and preparation and application thereof |
| CN110424181B (en) * | 2019-08-08 | 2021-10-01 | 淮北市硕华机械设备有限公司 | Ring-pressing enhanced waterproof corrugated paper surface sizing agent and preparation method thereof |
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| CN102432731A (en) * | 2011-11-22 | 2012-05-02 | 上海东升新材料有限公司 | Cationic styrene acrylate emulsion as well as preparation method and application thereof |
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| CN102432731A (en) * | 2011-11-22 | 2012-05-02 | 上海东升新材料有限公司 | Cationic styrene acrylate emulsion as well as preparation method and application thereof |
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