CN101831027B - Cation soap-free styrene-acrylate surface sizing agent and preparation method thereof - Google Patents
Cation soap-free styrene-acrylate surface sizing agent and preparation method thereof Download PDFInfo
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- CN101831027B CN101831027B CN2010101688472A CN201010168847A CN101831027B CN 101831027 B CN101831027 B CN 101831027B CN 2010101688472 A CN2010101688472 A CN 2010101688472A CN 201010168847 A CN201010168847 A CN 201010168847A CN 101831027 B CN101831027 B CN 101831027B
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- polyvinyl alcohol
- sizing agent
- surface sizing
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- free styrene
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Abstract
The invention discloses a cation soap-free styrene-acrylate surface sizing agent and a preparation method thereof. The molecular structure of the cation soap-free styrene-acrylate surface sizing agent is shown in the specification. The preparation method of the cation soap-free styrene-acrylate surface sizing agent comprises the following step of carrying out soap-free emulsion polymerization by using using polyvinyl alcohol 1799 as a dispersing agent, using ammonium persulfate as an initiator and using phenylethylene, methyl methacrylate, ethyl acrylate, allyl alcohol and methacrylatoethyl trimethyl ammonium chloride as mixing monomers to prepare the cation soap-free styrene-acrylate surface sizing agent. The obtain cation soap-free styrene-acrylate surface sizing agent has the characteristics of good combination with fibers, reduction of hair and powder slip, improvement of sizing degree, enhancement of surface strength, adaptation to high-speed printing and the like.
Description
Technical field
The present invention relates to the preparation field of light paper Surface Size, particularly a kind of cation soap-free styrene-acrylate surface sizing agent and preparation method thereof.
Background technology
China has stepped into world's paper production, consumption big country ranks now, needs the papermaking chemical product of hundreds of kinds in the paper production process.In the modern paper-making technique, top sizing has become the principal mode that the page top sizing is handled, the Surface Size of excellent performance can reduce the hair and powder dropping phenomenon of page and improve the surface strength of paper, folding endurance, water resisting property, tensile strength, deflection and the smoothness of paper have been improved simultaneously effectively, reduce Gas permeability, improve printing performance etc., improved the quality scale of paper and the value of use significantly.The wet end furnish that light paper production is adopted is based on chemimechanical pulp, contain a large amount of lignins in these slurries, fiber is more stiff, fiber combining power is relatively poor, because the fibrous tissue of light paper is more lax, thickness is relatively large, its tensile property is relatively also more a little bit poorer, and very easily makes moist and produce distortion.These factors have caused page surface strength and smoothness to descend, so that occur dry linting in the printing process and fall a mao phenomenon.On the other hand along with the continuous development of printing technology and equipment, printing industry requires more and more higher to the surface strength of paper, smoothness, printability etc., and the paper that uses has now caused page surface strength and smoothness to descend because of adding more filler, so that occurs falling hair, dry linting phenomenon in the printing process.The traditional Surface Size of light paper has starch, Sumstar 190, phosphate ester starch, polyacrylamide treated starch and polyvinyl alcohol etc., they in use exist, film forming easy fracture relatively poor with the avidity of fiber and occur easily falling shortcomings such as hair, dry linting phenomenon, water resisting property is relatively poor, surface strength is not enough in the printing process, and its applicable scope is restricted.Bringing into use benzene emulsion at present is by vinylbenzene and the acrylate monomer multipolymer by emulsion polymerization prepared, its preparation process is used small-molecular emulsifier more, not only influence the water resistance of light paper and film forming properties but also had environmental pollution, and mostly be the anionic polymer of water-soluble fluidity, in use owing to contain Al in the water
3+, Ca
2+Deng, can cause the emulsion precipitation has disadvantageous effect to applying glue.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of cation soap-free styrene-acrylate surface sizing agent and preparation method thereof, a kind of cation soap-free styrene-acrylate surface sizing agent of gained have with the light paper fiber in conjunction with good, alleviate hair and powder dropping, improve degree of sizing, improve surface strength and can adapt to characteristics such as high speed printing.
For achieving the above object, the technical solution used in the present invention is:
A kind of molecular structure of cation soap-free styrene-acrylate surface sizing agent is:
Cation soap-free styrene-acrylate surface sizing agent
Wherein x, y, z, m, n are the integer greater than zero.
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent is: with polyvinyl alcohol 1799 is dispersion agent, with the ammonium persulphate is initiator, with vinylbenzene, methyl methacrylate, butyl acrylate, vinylcarbinol and methylacryoyloxyethyl trimethyl ammonium chloride is that mix monomer carries out emulsifier-free emulsion polymerization prepared in reaction cation soap-free styrene-acrylate surface sizing agent, and its reaction process is:
Styrene methyl methacrylate butyl acrylate vinylcarbinol methylacryoyloxyethyl trimethyl ammonium chloride
Cation soap-free styrene-acrylate surface sizing agent
Wherein x, y, z, m, n are the integer greater than zero.
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent specifically may further comprise the steps:
The first step, with vinylbenzene, methyl methacrylate, butyl acrylate and vinylcarbinol by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, ammonium persulphate and deionized water are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, polyvinyl alcohol 1799 and deionized water press mass ratio add reactor at 1: 20 and stirred 0.5-1.5 hour 85-95 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add deionized water formation polyvinyl alcohol water solution in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 60-70 ℃,
The 5th step, give and add ammonium persulfate aqueous solution and mix monomer in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip the methylacryoyloxyethyl trimethyl ammonium chloride after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 1-2 hour
In the 6th step, feeding in raw material finished the back in 80-90 ℃ of insulation reaction 2.0-3.0 hour,
The 7th step cooled to 30-40 ℃, and with 100-200 order net filtration, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
Because a kind of cation soap-free styrene-acrylate surface sizing agent has advantages such as excellent water tolerance, weathering resistance, film-forming properties, shortcoming and pollution that little emulsifying agent causes have been eliminated, cation soap-free styrene-acrylate surface sizing agent shows positive polarity in wide pH scope, thereby can form strong ionic linkage with electronegative paper fibre and can improve sticking power, have with fiber in conjunction with good, alleviate hair and powder dropping, improve degree of sizing, improve surface strength and can adapt to characteristics such as high speed printing.
Embodiment
To be described in further detail method of the present invention with specific embodiment below.
Embodiment one
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent specifically may further comprise the steps:
The first step, 8 gram vinylbenzene, 2 gram methyl methacrylates, 20 gram butyl acrylates and 5 are restrained vinylcarbinols by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, 1 gram ammonium persulphate and 20 gram deionized waters are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, 1 gram polyvinyl alcohol 1799 and 20 gram deionized waters press mass ratio 1: 20 add reactor and stirred 0.5 hour 85 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add 127 gram deionized waters formation polyvinyl alcohol water solutions in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 60 ℃,
The 5th step, give and add 21 gram ammonium persulfate aqueous solutions and 35 gram mix monomers in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip 8 gram methylacryoyloxyethyl trimethyl ammonium chlorides after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 1 hour
In the 6th step, the reinforced back that finishes is in 80 ℃ of insulation reaction 2.0 hours,
The 7th step cooled to 30 ℃, and with 100 order net filtrations, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
Embodiment two
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent specifically may further comprise the steps:
The first step, 8 gram vinylbenzene, 2 gram methyl methacrylates, 20 gram butyl acrylates and 5 are restrained vinylcarbinols by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, 1 gram ammonium persulphate and 20 gram deionized waters are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, 1 gram polyvinyl alcohol 1799 and 20 gram deionized waters press mass ratio 1: 20 add reactor and stirred 0.7 hour 87 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add 127 gram deionized waters formation polyvinyl alcohol water solutions in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 62 ℃,
The 5th step, give and add 21 gram ammonium persulfate aqueous solutions and 35 gram mix monomers in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip 8 gram methylacryoyloxyethyl trimethyl ammonium chlorides after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 1.2 hours
In the 6th step, the reinforced back that finishes is in 80 ℃ of insulation reaction 2.2 hours,
The 7th step cooled to 32 ℃, and with 120 order net filtrations, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
Embodiment three
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent specifically may further comprise the steps:
The first step, 8 gram vinylbenzene, 2 gram methyl methacrylates, 20 gram butyl acrylates and 5 are restrained vinylcarbinols by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, 1 gram ammonium persulphate and 20 gram deionized waters are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, 1 gram polyvinyl alcohol 1799 and 20 gram deionized waters press mass ratio 1: 20 add reactor and stirred 0.9 hour 89 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add 127 gram deionized waters formation polyvinyl alcohol water solutions in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 64 ℃,
The 5th step, give and add 21 gram ammonium persulfate aqueous solutions and 35 gram mix monomers in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip 8 gram methylacryoyloxyethyl trimethyl ammonium chlorides after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 1.4 hours
In the 6th step, the reinforced back that finishes is in 84 ℃ of insulation reaction 2.4 hours,
The 7th step cooled to 34 ℃, and with 140 order net filtrations, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
Embodiment four
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent specifically may further comprise the steps:
The first step, 8 gram vinylbenzene, 2 gram methyl methacrylates, 20 gram butyl acrylates and 5 are restrained vinylcarbinols by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, 1 gram ammonium persulphate and 20 gram deionized waters are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, 1 gram polyvinyl alcohol 1799 and 20 gram deionized waters press mass ratio 1: 20 add reactor and stirred 1.1 hours 91 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add 127 gram deionized waters formation polyvinyl alcohol water solutions in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 66 ℃,
The 5th step, give and add 21 gram ammonium persulfate aqueous solutions and 35 gram mix monomers in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip 8 gram methylacryoyloxyethyl trimethyl ammonium chlorides after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 1.6 hours
In the 6th step, the reinforced back that finishes is in 86 ℃ of insulation reaction 2.6 hours,
The 7th step cooled to 36 ℃, and with 160 order net filtrations, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
Embodiment five
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent specifically may further comprise the steps:
The first step, 8 gram vinylbenzene, 2 gram methyl methacrylates, 20 gram butyl acrylates and 5 are restrained vinylcarbinols by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, 1 gram ammonium persulphate and 20 gram deionized waters are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, 1 gram polyvinyl alcohol 1799 and 20 gram deionized waters press mass ratio 1: 20 add reactor and stirred 1.3 hours 93 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add 127 gram deionized waters formation polyvinyl alcohol water solutions in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 68 ℃,
The 5th step, give and add 21 gram ammonium persulfate aqueous solutions and 35 gram mix monomers in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip 8 gram methylacryoyloxyethyl trimethyl ammonium chlorides after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 1.8 hours
In the 6th step, the reinforced back that finishes is in 88 ℃ of insulation reaction 2.8 hours,
The 7th step cooled to 38 ℃, and with 180 order net filtrations, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
Embodiment six
A kind of preparation method of cation soap-free styrene-acrylate surface sizing agent specifically may further comprise the steps:
The first step, 8 gram vinylbenzene, 2 gram methyl methacrylates, 20 gram butyl acrylates and 5 are restrained vinylcarbinols by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, 1 gram ammonium persulphate and 20 gram deionized waters are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, 1 gram polyvinyl alcohol 1799 and 20 gram deionized waters press mass ratio 1: 20 add reactor and stirred 1.5 hours 95 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add 127 gram deionized waters formation polyvinyl alcohol water solutions in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 70 ℃,
The 5th step, give and add 21 gram ammonium persulfate aqueous solutions and 35 gram mix monomers in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip 8 gram methylacryoyloxyethyl trimethyl ammonium chlorides after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 2 hours
In the 6th step, the reinforced back that finishes is in 90 ℃ of insulation reaction 3.0 hours,
The 7th step cooled to 40 ℃, and with 200 order net filtrations, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
Claims (3)
1. cation soap-free styrene-acrylate surface sizing agent, it is characterized in that: its molecular structure is:
Cation soap-free styrene-acrylate surface sizing agent
Wherein x, y, z, m, n are the integer greater than zero.
2. the preparation method of a cation soap-free styrene-acrylate surface sizing agent, it is characterized in that: with polyvinyl alcohol 1799 is dispersion agent, with the ammonium persulphate is initiator, is that mix monomer carries out emulsifier-free emulsion polymerization prepared in reaction cation soap-free styrene-acrylate surface sizing agent with vinylbenzene, methyl methacrylate, butyl acrylate, vinylcarbinol and methylacryoyloxyethyl trimethyl ammonium chloride.
3. the preparation method of a kind of cation soap-free styrene-acrylate surface sizing agent according to claim 2 is characterized in that: specifically may further comprise the steps:
The first step, with vinylbenzene, methyl methacrylate, butyl acrylate and vinylcarbinol by 8: 2: 20: 5 mass ratio is mixed and made into mix monomer,
Second step, ammonium persulphate and deionized water are made ammonium persulfate aqueous solution with mass ratio at 1: 20,
The 3rd step, polyvinyl alcohol 1799 and deionized water press mass ratio add reactor at 1: 20 and stirred 0.5-1.5 hour 85-95 ℃ the time, polyvinyl alcohol 1799 is dissolved,
The 4th step, to give to add deionized water formation polyvinyl alcohol water solution in the dissolved polyvinyl alcohol 1799, the mass ratio of polyvinyl alcohol 1799 and deionized water is 1: 127, is cooled to 60-70 ℃,
The 5th step, give and add ammonium persulfate aqueous solution and mix monomer in the polyvinyl alcohol water solution, the mass ratio of polyvinyl alcohol water solution, ammonium persulfate aqueous solution and mix monomer is 148: 21: 35, continue to drip the methylacryoyloxyethyl trimethyl ammonium chloride after dripping mix monomer, the mass ratio of mix monomer and methylacryoyloxyethyl trimethyl ammonium chloride is 35: 8, the whole reinforced time is 1-2 hour
In the 6th step, feeding in raw material finished the back in 80-90 ℃ of insulation reaction 2.0-3.0 hour,
The 7th step cooled to 30-40 ℃, and with 100-200 order net filtration, discharging obtains cation soap-free styrene-acrylate surface sizing agent.
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Granted publication date: 20111207 Termination date: 20140511 |