CN101463109A - Cation polyacrylamide and preparation thereof - Google Patents
Cation polyacrylamide and preparation thereof Download PDFInfo
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- CN101463109A CN101463109A CNA2008102049568A CN200810204956A CN101463109A CN 101463109 A CN101463109 A CN 101463109A CN A2008102049568 A CNA2008102049568 A CN A2008102049568A CN 200810204956 A CN200810204956 A CN 200810204956A CN 101463109 A CN101463109 A CN 101463109A
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Abstract
The invention provides a cationic polyacrylamide and a preparation method thereof. The preparation method comprises the following steps: (1) 18-65 parts of mixed monomer liquid A accounting for 10-30% of the total weight, 1-3 parts of initiator solution B accounting for 10-30% of the total weight, 1-5 parts of a dispersion medium, 0.01-1 part of a reducer and 105-217 parts of water are mixed for reaction, and the mixed monomer liquid A is a mixture of acrylamide, a cationic monomer and water; and (2) the rest mixed monomer liquid A and initiator solution B are added for reaction to obtain the cationic polyacrylamide. The method relies on an aqueous solution dispersion polymerization, which simplifies the production process, lowers the cost, is easy for implementation, increases the product quality and reduces the environmental pollution.
Description
Technical field
The present invention relates to a kind of cationic polyacrylamide and preparation method thereof.
Background technology
Acrylamide monomer and the formed multipolymer of quaternary ammonium salt copolymerization that has two keys under aqueous solution state, have certain positive polarity, also reach cationic, are commonly referred to as cationic polyacrylamide.Such polymeric articles outward appearance is that white fine sand is granular, forms colloidal when water-soluble, is dissolved in any organic solvent hardly, basic nontoxicity.Be mainly used in that sludge dewatering, sewage decoloring, papermaking are done, Wet Strength Resin, oil well sand-fixation agent etc.Its preparation method forms water solution system for adding water by acrylamide with the cationic monomer that has two keys, and adding sequestrant and initiator under 10-40 ℃ of condition carries out copolyreaction, and the blob of viscose that obtains after the reaction obtains through granulation, drying, pulverizing.Acrylamide monomer has dissolved oxygen with the water solution system that the cationic monomer that has two keys forms, adopt nitrogen blowing to replace or vacuumize the method for purification, after adopting this method deoxygenation, form vitreum after the polymkeric substance blob of viscose drying that polymerization obtains, cause and pulverize difficulty, copolymerization is thermopositive reaction simultaneously, blob of viscose is a poor conductor of heat, temperature is overheated in the blob of viscose, the molecular weight and poorly soluble that causes damage, and quality product is not easy to be guaranteed.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective that prior art exists, provide a kind of and have good fluidity, instantly-soluble, high solids content and high-molecular weight cationic polyacrylamide, and the preparation method of this cationic polyacrylamide.
Preparation method of the present invention comprises the steps:
(1) with the mix monomer liquid A of gross weight 10～30%, initiator solution B, dispersion medium, reductive agent and the water of gross weight 10～30%, 50-85 ℃ was reacted 15～30 minutes under the nitrogen atmosphere, prepared dispersion stabilizer C;
The parts by weight of each component are:
Mix monomer liquid A is 18～65 weight parts, initiator solution B1～3 weight parts, dispersion medium 1～5 weight part, reductive agent 0.01～1 weight part, water 105～217 weight parts;
Described mix monomer liquid A is the mixture of acrylamide, cationic monomer and water, wherein: the weight content of acrylamide is 55～75%, the weight content of cationic monomer is 25～45%, and the weight of water is 35～55% of acrylamide and cationic monomer gross weight; Described cationic monomer is more than one in methylacryoyloxyethyl trimethyl ammonium chloride, acrylyl oxy-ethyl-trimethyl salmiac, methylacryoyloxyethyl benzyl dimethyl ammonium chloride, acryloyl ethoxy benzyldimethyl ammonium chloride or the dimethyl diallyl ammonium chloride;
Described initiator is that the routine of this area is selected, for example ammonium persulphate, Sodium Persulfate or Potassium Persulphate, and the weight concentration of initiator solution B is 1.0-10.0%;
Described dispersion medium is polyoxyethylene (PEO), and weight-average molecular weight is 10000-50000;
Described reductive agent is a kind of in trolamine, quadrol, diethylamine, triethylamine or the 4-cyanopyridine;
(2) in 1～4 hour, in described dispersion stabilizer C, add remaining mix monomer liquid A and initiator solution B then simultaneously, continue reaction 0.5～2 hour, obtain described cationic polyacrylamide.
The present invention is before adding monomer and initiator, and prepolymerization forms low-molecular-weight cationic polyacrylamide, promptly said dispersion stabilizer C, and the inventor finds that this method can make low, the good fluidity of viscosity, the cationic polymers of good water solubility.
Beneficial effect of the present invention is: adopts aqueous solution dispersion copolymerization method, simplified production technique, and the production cost of reduction, production technique is easy to control, and is easy to implement, improved quality product, reduced environmental pollution.Prepared product is that the polymer active ingredient is even at aqueous phase, the liquid of stable dispersion, and solid content height and solvability are good, is easy to preparation and use.Do not need huge dissolution equipment during use, can in pipeline, directly inject, be convenient to automated operation and accurately metering, save manpower, do not have deleterious organic solvent during use, stopped, help environment protection and save energy second environmental pollution
Embodiment
Embodiment 1
In 500 ml beakers, add 106.5 gram deionized waters, 1 gram polyoxyethylene and 1 gram trolamine, under agitation dissolving; (2) configuration restrains mix monomer 215.5 grams that the chlorinations of methylacryoyloxyethyl trimethylammonium are formed by 75 gram acrylamides, 113 gram deionized waters and 25; (3) configuration 10 gram weight content are 10% ammonium persulfate solution.
In being housed, 1000 milliliters four-hole boiling flask of thermometer, electronic stirring, reflux exchanger and dropping pipeline adds (1), the initiator solution that under agitation adds 63.9 gram mix monomers and 3 grams, begin after stirring to heat up, when system temperature rises to 85 ℃, drip remaining mix monomer and initiator solution simultaneously, the dropping time is 3 hours, after dropwising, under this temperature, insulation reaction 1 hour begins cooling, temperature is reduced to 40 ℃, discharging, surveying its solid content is 30.01%, the molecular weight that records polymkeric substance with laser method is 5.0*10
6
Embodiment 2
In 500 ml beakers, add 195.5 gram deionized waters, 3 gram polyoxyethylenes and 0.5 gram trolamine, under agitation dissolving; (2) configuration restrains mix monomer 225.5 grams that the chlorinations of methylacryoyloxyethyl trimethylammonium are formed by 70 gram acrylamides, 125.5 gram deionized waters and 30; (3) configuration 10 gram weight content are 5% ammonium persulfate solution.
In being housed, 1000 milliliters four-hole boiling flask of thermometer, electronic stirring, reflux exchanger and dropping pipeline adds (1), under agitation add the mix monomer of 45 grams and the initiator solution of 2 grams, begin after stirring to heat up, when system temperature rises to 84 ℃, drip remaining mix monomer and initiator solution simultaneously, the dropping time is 2.5 hours, after dropwising, under this temperature, insulation reaction 1.5 hours begins cooling, temperature is reduced to 40 ℃, discharging, surveying its solid content is 25.10%, the molecular weight that records polymkeric substance with laser method is 8.0*10
6
Embodiment 3
In 500 ml beakers, add 105 gram deionized waters, 4 gram polyoxyethylenes and 0.1 gram quadrol, under agitation dissolving; (2) configuration restrains mix monomer 194.15 grams that dimethyl diallyl ammonium chlorides are formed by 63 gram acrylamides, 94.5 gram deionized waters and 27; (3) configuration 10 gram weight concentration are 1% ammonium persulfate solution.
In being housed, 1000 milliliters four-hole boiling flask of thermometer, electronic stirring, reflux exchanger and dropping pipeline adds (1), under agitation add the mix monomer of 55 grams and the initiator solution of 1.5 grams, begin after stirring to heat up, when system temperature rises to 82 ℃, drip remaining mix monomer and initiator solution simultaneously, the dropping time is 2.5 hours, after dropwising, under this temperature, insulation reaction 2 hours begins cooling, temperature is reduced to 40 ℃, discharging, surveying its solid content is 33.4%, the molecular weight that records polymkeric substance with laser method is 1.0*10
7
Embodiment 4
In 500 ml beakers, add 217 gram deionized waters, 5 gram polyoxyethylenes and 0.01 gram triethylamine, under agitation dissolving; (2) configuration restrains mix monomer 157.5 grams that the chlorinations of methylacryoyloxyethyl trimethylammonium are formed by 55 gram acrylamides, 83 gram deionized waters and 45; (3) configuration 10 gram weight concentration are 0.1% ammonium persulfate solution.
In being housed, 1000 milliliters four-hole boiling flask of thermometer, electronic stirring, reflux exchanger and dropping pipeline adds (1), under agitation add the mix monomer of 18.3 grams and the initiator solution of 1 gram, begin after stirring to heat up, when system temperature rises to 80 ℃, drip remaining mix monomer and initiator solution simultaneously, the dropping time is 3 hours, after dropwising, under this temperature, insulation reaction 2 hours begins cooling, temperature is reduced to 40 ℃, discharging, surveying its solid content is 26.7%, the molecular weight that records polymkeric substance with laser method is 1.5*10
7
Claims (7)
1. the preparation method of cationic polyacrylamide is characterized in that, comprises the steps:
(1) with the mix monomer liquid A of gross weight 10～30%, initiator solution B, dispersion medium, reductive agent and the water of gross weight 10～30%, 50-85 ℃ was reacted 15～30 minutes under the nitrogen atmosphere, prepared dispersion stabilizer C;
The parts by weight of each component are:
Mix monomer liquid A is 18～65 weight parts, initiator solution B1～3 weight parts, dispersion medium 1～5 weight part, reductive agent 0.01～1 weight part, water 105～217 weight parts;
Described mix monomer liquid A is the mixture of acrylamide, cationic monomer and water;
(2) in 1～4 hour, in described dispersion stabilizer C, add remaining mix monomer liquid A and initiator solution B then simultaneously, continue reaction 0.5～2 hour, obtain described cationic polyacrylamide.
2. method according to claim 1 is characterized in that, described initiator is ammonium persulphate, Sodium Persulfate or Potassium Persulphate, and the weight concentration of initiator solution B is 1.0-10.0%.
3. method according to claim 1 is characterized in that, described dispersion medium is polyoxyethylene (PEO), and weight-average molecular weight is 10000-50000.
4. method according to claim 1 is characterized in that, described reductive agent is a kind of in trolamine, quadrol, diethylamine, triethylamine or the 4-cyanopyridine.
5. according to each described method of claim 1～4, it is characterized in that among the described mix monomer liquid A: the weight part of acrylamide is 55～75, the weight part of cationic monomer is 25～45, and the weight part of water is 83～112.
6. method according to claim 5, it is characterized in that described cationic monomer is more than one in methylacryoyloxyethyl trimethyl ammonium chloride, acrylyl oxy-ethyl-trimethyl salmiac, methylacryoyloxyethyl benzyl dimethyl ammonium chloride, acryloyl ethoxy benzyldimethyl ammonium chloride or the dimethyl diallyl ammonium chloride.
7. according to the cationic polyacrylamide of each described method preparation of claim 1～6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102049568A CN101463109B (en) | 2008-12-30 | 2008-12-30 | Cation polyacrylamide and preparation thereof |
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| CN2008102049568A CN101463109B (en) | 2008-12-30 | 2008-12-30 | Cation polyacrylamide and preparation thereof |
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| CN101463109A true CN101463109A (en) | 2009-06-24 |
| CN101463109B CN101463109B (en) | 2012-05-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585089A (en) * | 2011-01-07 | 2012-07-18 | 上海浦泰化工有限公司 | Cationic polyacrylamide polymer, method for preparing same and application thereof |
| CN108998036A (en) * | 2018-07-25 | 2018-12-14 | 陕西科技大学 | Self-association type cationic polymer cladding humic acid fixes the sand sustained release agent and preparation method thereof |
| CN110527028A (en) * | 2019-09-05 | 2019-12-03 | 江苏富淼科技股份有限公司 | A kind of Instant cationic polyacrylamide and preparation method thereof |
| CN112898472A (en) * | 2021-01-22 | 2021-06-04 | 常州骏嘉纺织科技有限公司 | Flocking preparation method of wear-resistant suede composite fabric |
-
2008
- 2008-12-30 CN CN2008102049568A patent/CN101463109B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585089A (en) * | 2011-01-07 | 2012-07-18 | 上海浦泰化工有限公司 | Cationic polyacrylamide polymer, method for preparing same and application thereof |
| CN102585089B (en) * | 2011-01-07 | 2014-09-10 | 上海洗霸科技股份有限公司 | Cationic polyacrylamide polymer, method for preparing same and application thereof |
| CN108998036A (en) * | 2018-07-25 | 2018-12-14 | 陕西科技大学 | Self-association type cationic polymer cladding humic acid fixes the sand sustained release agent and preparation method thereof |
| CN110527028A (en) * | 2019-09-05 | 2019-12-03 | 江苏富淼科技股份有限公司 | A kind of Instant cationic polyacrylamide and preparation method thereof |
| CN110527028B (en) * | 2019-09-05 | 2022-01-04 | 江苏富淼科技股份有限公司 | Instant cationic polyacrylamide and preparation method thereof |
| CN112898472A (en) * | 2021-01-22 | 2021-06-04 | 常州骏嘉纺织科技有限公司 | Flocking preparation method of wear-resistant suede composite fabric |
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| CN101463109B (en) | 2012-05-23 |
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Denomination of invention: Cationic polyacrylamide and its preparation method Effective date of registration: 20220715 Granted publication date: 20120523 Pledgee: Bank of Hangzhou Limited by Share Ltd. Shanghai branch Pledgor: SHANGHAI DONGSHENG NEW MATERIALS Co.,Ltd. Registration number: Y2022310000128 |
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