CN100570055C - The preparation method of cationic polyacrylamide paper making intensifier - Google Patents
The preparation method of cationic polyacrylamide paper making intensifier Download PDFInfo
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- CN100570055C CN100570055C CNB2007100176776A CN200710017677A CN100570055C CN 100570055 C CN100570055 C CN 100570055C CN B2007100176776 A CNB2007100176776 A CN B2007100176776A CN 200710017677 A CN200710017677 A CN 200710017677A CN 100570055 C CN100570055 C CN 100570055C
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- acrylamide monomer
- polyethylene glycol
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Abstract
The preparation method of cationic polyacrylamide paper making intensifier at first mixes acrylamide monomer with polyethylene glycol oxide, add entry, cationic monomer and water soluble starter polymerization reaction take place then and get final product.Because the present invention is dissolved in the polyethylene oxide solutions acrylamide monomer and cation mono precursor copolymer, interaction by polymer and decentralized medium, system is separated, thereby improve polymer molecular weight and solid content, reduction system viscosity, polyacrylamide copolymer also has fine solubility simultaneously, can be dissolved in rapidly in the water, polyethylene glycol oxide has good peptizaiton to paper fibre simultaneously, adding polyethylene glycol oxide can make uniformity raising of production paper and polyacrylamide copolymer together the intensity of fibre paper be played the raising effect.
Description
Technical field
The invention belongs to the synthetic method of paper strengthening agent, be specifically related to a kind of preparation method of cationic polyacrylamide paper making intensifier.
Background technology
Polyacrylamide can adopt method preparations such as free yl solution polymerization, inverse emulsion polymerization, precipitation polymerization, and this base polymer is widely used in water treatment, papermaking etc. and requires the product viscosity to hang down the good industry of solubility.
Aqueous solution polymerization technology is simple, the polymerization yield rate height, and environmental pollution is few, is the prefered method of preparation cationic polyacrylamide.It can be by regulating initiator system, medium pH value, additive, temperature etc. to polymer reaction process and product property control.Though aqueous solution polymerization has many good qualities, also there are a lot of shortcomings, be difficult to prepare the high molecular weight polymers of high solids content.Usually requiring molecular weight greater than 40～1,000,000 as paper strengthening agent, is example with the acrylamide, works as molecular weight usually and surpasses 500,000, content of monomer was above 15% o'clock, the viscosity of system will reach very difficulty of 50PaS reaction heat radiation, and generation is sudden and violent poly-easily, and the polymer water dissolubility is very poor.Though reversed-phase emulsion, anti-phase suspension, precipitation polymerization etc. can effectively address these problems.But will use organic solvent in a large number, exist pollute and problem such as production cost, and product is water-soluble poor, use very difficulty.The cationic sheet paper reinforcing agent of selling on the present market is about 10% the aqueous solution normally, and solid content is low, and degraded is fast, and is mobile poor.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of and can improve polymer molecular weight and solid content, reduction system viscosity has fine solubility simultaneously, can be dissolved in the preparation method of the cationic polyacrylamide paper making intensifier in the water rapidly.
For achieving the above object, the technical solution used in the present invention is: at first acrylamide monomer is mixed with the mass ratio of polyethylene glycol oxide by 1: 0.5～1: 2, adding the content that entry makes acrylamide monomer then is 10%～25%, add the cationic monomer of acrylamide monomer quality 10%～30% and 1.5%～10% water soluble starter again, got final product in 4～8 hours 40 ℃～80 ℃ polymerisations;
Said cationic monomer has following architectural feature
R wherein
1Be hydrogen, methyl or ethyl, R
2, R
3R
4There is or two existence simultaneously wherein R simultaneously
2, R
3R
4For carbon number less than 5 short hydrocarbon, R
5Be methylene, ethylidene or propylidene;
Said water soluble starter is water-soluble oxidizers or redox system initator: water-soluble oxidizers is: potassium peroxydisulfate, ammonium persulfate or sodium peroxydisulfate, the redox system initator is: the redox system that persulfate and sulphite, persulfate and primary amine or persulfate and tertiary alkanolamine are formed.
Acrylamide monomer of the present invention has following architectural feature:
R wherein is hydrogen, methyl or ethyl.
The relative molecular mass of polyethylene glycol oxide is 10000～50000.
Because the present invention is dissolved in the polyethylene oxide solutions acrylamide monomer and cation mono precursor copolymer, interaction by polymer and decentralized medium, system is separated, thereby improve polymer molecular weight and solid content, reduction system viscosity, polyacrylamide copolymer also has fine solubility simultaneously, can be dissolved in rapidly in the water, polyethylene glycol oxide has good peptizaiton to paper fibre simultaneously, adding polyethylene glycol oxide can make uniformity raising of production paper and polyacrylamide copolymer together the intensity of fibre paper be played the raising effect.
The specific embodiment
Embodiment 1, at first being 20000 polyethylene glycol oxide with acrylamide monomer and relative molecular mass mixes by 1: 0.5 mass ratio, adding the content that entry makes acrylamide monomer then is 18%, adds the cationic monomer dimethylaminoethyl methacrylate of acrylamide monomer quality 15% and 8% potassium peroxydisulfate again and gets final product in 4 hours 80 ℃ of polymerisations.
With potassium bromate potassium bromide method conversion rate of products is measured, conversion ratio surpasses 98%, with the rotor viscosimeter viscosity is measured, and viscosity is 5Pas, is far smaller than general aqueous solution polymerization.
Simultaneously the product dissolubility is tested, in 100g water, added this polymer emulsion of 2g, stir gently, be dissolved as clear solution rapidly.Cation acrylamide with same amount then needs the time more than 1 hour to dissolve fully.
Embodiment 2: at first being 50000 polyethylene glycol oxide with acrylamide monomer and relative molecular mass mixes by 1: 1.2 mass ratio, adding the content that entry makes acrylamide monomer then is 23%, adds the cationic monomer diallyldimethylammonChloride Chloride of acrylamide monomer quality 20% and 5% sodium peroxydisulfate again and gets final product in 6 hours 80 ℃ of polymerisations.
With potassium bromate potassium bromide method conversion rate of products is measured, conversion ratio surpasses 97%, with the rotor viscosimeter viscosity is measured, and viscosity is 5.8Pas.
Simultaneously the product dissolubility is tested, in 100g water, added this polymer emulsion of 2g, stir gently, be dissolved as clear solution rapidly.
Embodiment 3, at first being 10000 polyethylene glycol oxide with acrylamide monomer and relative molecular mass mixes by 1: 1.7 mass ratio, adding the content that entry makes acrylamide monomer then is 10%, adds the cationic monomer acryloyl ethyl-trimethyl benzyl ammonium chloride of acrylamide monomer quality 30% and 3% ammonium persulfate again and gets final product in 7.5 hours 70 ℃ of polymerisations.
With potassium bromate potassium bromide method conversion rate of products is measured, conversion ratio surpasses 98%, with the rotor viscosimeter viscosity is measured, and viscosity is 7Pas.
Simultaneously the product dissolubility is tested, in 100g water, added this polymer emulsion of 2g, stir gently, be dissolved as clear solution rapidly.
Embodiment 4, at first being 30000 polyethylene glycol oxide with acrylamide monomer and relative molecular mass mixes by 1: 2 mass ratio, adding the content that entry makes acrylamide monomer then is 15%, add the cationic monomer acrylic acid dimethylamine ethyl ester of acrylamide monomer quality 30% again, potassium peroxydisulfate with 3% and 1.5% primary amine got final product 70 ℃ of polymerisations in 5 hours.
Embodiment 5, at first being 40000 polyethylene glycol oxide with acrylamide monomer and relative molecular mass mixes by 1: 0.8 mass ratio, adding the content that entry makes acrylamide monomer then is 25%, the cationic monomer dimethylaminoethyl methacrylate that adds acrylamide monomer quality 25% again, ammonium persulfate with 4% and 3% tertiary alkanolamine got final product 40 ℃ of polymerisations in 8 hours.
Embodiment 6, at first being 25000 polyethylene glycol oxide with acrylamide monomer and relative molecular mass mixes by 1: 1.0 mass ratio, adding the content that entry makes acrylamide monomer then is 20%, add the cationic monomer acrylic acid dimethylamine ethyl ester of acrylamide monomer quality 10% again, ammonium persulfate with 4% and 5% sodium sulfite got final product 55 ℃ of polymerisations in 6.5 hours.
Claims (3)
1, the preparation method of cationic polyacrylamide paper making intensifier, it is characterized in that: at first acrylamide monomer is mixed with the mass ratio of polyethylene glycol oxide by 1: 0.5～1: 2, adding the content that entry makes acrylamide monomer then is 10%～25%, add the cationic monomer of acrylamide monomer quality 10%～30% and 1.5%～10% water soluble starter again, got final product in 4～8 hours 40 ℃～80 ℃ polymerisations;
Said cationic monomer has following architectural feature
R wherein
1Be hydrogen, methyl or ethyl, R
2, R
3R
4There is or two existence simultaneously wherein R simultaneously
2, R
3R
4For carbon number less than 5 short hydrocarbon, R
5Be methylene, ethylidene or propylidene;
Said water soluble starter is water-soluble oxidizers or redox system initator: water-soluble oxidizers is: potassium peroxydisulfate, ammonium persulfate or sodium peroxydisulfate, the redox system initator is: the redox system that persulfate and sulphite, persulfate and primary amine or persulfate and tertiary alkanolamine are formed.
2, the preparation method of cationic polyacrylamide paper making intensifier according to claim 1 is characterized in that: said acrylamide monomer has following architectural feature:
R wherein is hydrogen, methyl or ethyl.
3, the preparation method of cationic polyacrylamide paper making intensifier according to claim 1 is characterized in that: the relative molecular mass of said polyethylene glycol oxide is 10000～50000.
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| CNB2007100176776A CN100570055C (en) | 2007-04-13 | 2007-04-13 | The preparation method of cationic polyacrylamide paper making intensifier |
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| CNB2007100176776A CN100570055C (en) | 2007-04-13 | 2007-04-13 | The preparation method of cationic polyacrylamide paper making intensifier |
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| CN101033592A CN101033592A (en) | 2007-09-12 |
| CN100570055C true CN100570055C (en) | 2009-12-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105085896A (en) * | 2015-07-27 | 2015-11-25 | 天禾化学品（苏州）有限公司 | Preparation method for high-molecular surfactant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020000310A1 (en) * | 2018-06-28 | 2020-01-02 | 江苏富淼科技股份有限公司 | Crosslinking modified type water-soluble solid polyacrylamide and use thereof |
| CN109810240B (en) * | 2019-01-15 | 2021-06-15 | 陕西科技大学 | Preparation method and application of polyurethane fluorescent whitening emulsion containing piperidine amine |
| CN112553941A (en) * | 2020-11-09 | 2021-03-26 | 山东华泰纸业股份有限公司 | Production process of ink jet printing paper |
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Non-Patent Citations (4)
| Title |
|---|
| 新型阳离子聚丙烯酰胺微粒的研究---含PEO支链阳离子聚丙烯酰胺微粒的合成、助留性能及作用机理. 彭晓宏，佘娜，沈家瑞.精细与专用化学品，第21期. 2002 |
| 新型阳离子聚丙烯酰胺微粒的研究---含PEO支链阳离子聚丙烯酰胺微粒的合成、助留性能及作用机理. 彭晓宏，佘娜，沈家瑞.精细与专用化学品，第21期. 2002 * |
| 阳离子有机高分子絮凝剂的研究进展及其应用. 胡瑞，周华，李田霞，陈存华.化工进展，第25卷第6期. 2006 |
| 阳离子有机高分子絮凝剂的研究进展及其应用. 胡瑞，周华，李田霞，陈存华.化工进展，第25卷第6期. 2006 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105085896A (en) * | 2015-07-27 | 2015-11-25 | 天禾化学品（苏州）有限公司 | Preparation method for high-molecular surfactant |
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Application publication date: 20070912 Assignee: Zhejiang XinyongBiological Chemical Co., Ltd. Assignor: Shaanxi University of Science and Technology Contract record no.: 2010330000321 Denomination of invention: Method of preparing cationic polyacrylamide paper making intensifier Granted publication date: 20091216 License type: Exclusive License Record date: 20100323 |
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