CN101245124A - Hyperbranched polyacrylamide copolymer with ion load and preparation technique - Google Patents
Hyperbranched polyacrylamide copolymer with ion load and preparation technique Download PDFInfo
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- CN101245124A CN101245124A CNA2007100717847A CN200710071784A CN101245124A CN 101245124 A CN101245124 A CN 101245124A CN A2007100717847 A CNA2007100717847 A CN A2007100717847A CN 200710071784 A CN200710071784 A CN 200710071784A CN 101245124 A CN101245124 A CN 101245124A
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Abstract
The invention pertains to an ion-loaded highly branched polyacrylamide polymer and a preparation process thereof. Usually, homopolymerized or copolymerized soluble polyacrylamide can be prepared by radiation and chemical initiation in the form of bulk or emulsion polymerization. Though the polymer has excellent flocculation and thickening property, but has bad salt-tolerant property, more particularly, the polymer molecular chain is crosslinked and the aqueous solution is gelatinized by polyvalent metal ion, thus obviously reducing the application properties. The composition of the invention consists of natural high molecular, polyvalent metal salt, acrylamide, acrylic acid, urea, sodium acetate and chlorides of magnesium, calcium and aluminium; wherein, the natural high molecular is 5 to 50 percent by weight, the polyvalent metal salt is 1 to 5 percent by weight, the acrylamide is 60 to 90 percent by weight, the acrylic acid is 5 to 20 percent by weight, the urea is 0 to 5 percent by weight, the sodium acetate is 0 to 5 percent by weight, the chlorides of magnesium, calcium and aluminium are 0 to 5 percent by weight. The product is applicable to the solid-liquid separation of high stability, high salinity and high solid content systems.
Description
Technical field:
The present invention relates to a kind of chemical products and preparation technology thereof, be specifically related to a kind of have ion load hyperbranched polyacrylamide copolymer and preparation technology thereof.
Background technology:
Usually can adopt radiation, chemistry to cause in the prior art and prepare homopolymerization or copoly type water-soluble polyacrylamide with body or emulsion polymerization way, though this polymkeric substance has good flocculation and solution thickening properties, but salt resistant character is poor, especially it is crosslinked that polyvalent metal ion will make polymer molecular chain, make aqueous gelization, application performance significantly reduces.Therefore, the technology of introducing polyvalent metal ion is the focus of research always in polymerization system.
In flocculation is used, normally adopt the master-secondary flocculation process of polymkeric substance and the composite composition of inorganic salt, the substep dispensing, complex process, flocculation efficiency is low.
Summary of the invention:
The purpose of this invention is to provide a kind of dispensing synchronously that realizes in flocculation is used, can simplify procedures, that improves process efficiency has ion load hyperbranched polyacrylamide copolymer and a preparation technology thereof.
Above-mentioned purpose realizes by following technical scheme:
A kind of have an ion load hyperbranched polyacrylamide copolymer, its composition comprises: the muriate of natural polymer, polyvalent metal salt, acrylamide, vinylformic acid, urea, sodium acetate, magnesium calcium aluminium, the parts by weight of described natural polymer are 5-50, the parts by weight of described polyvalent metal salt are 1-5, described acrylamide parts by weight are 60-90, described acrylic acid parts by weight are 5-20, and the parts by weight of described urea are that the parts by weight of 0-5, sodium acetate are that the muriatic parts by weight of 0-5, magnesium calcium aluminium are 0-5.
Above-mentioned have an ion load hyperbranched polyacrylamide copolymer, and described natural polymer is chitin, starch or Mierocrystalline cellulose.
Above-mentioned have an ion load hyperbranched polyacrylamide copolymer, and described polyvalent metal salt is magnesium chloride, calcium chloride or aluminum chloride.
A kind of preparation technology with ion load hyperbranched polyacrylamide copolymer, the parts by weight of getting natural polymer are 5-50, the parts by weight of polyvalent metal salt are 1-5, the acrylamide parts by weight are 60-90, acrylic acid parts by weight are 5-20, the parts by weight of additive are 0-5, with natural polymer and polyvalent metal salt after 50-70 ℃ of heating fusion, carry out the room temperature irradiation activation, irradiation dose is 50-100kGy, add acrylamide then, vinylformic acid, graft copolymerization outside the venue takes place in additive, polymerization temperature is 60-70 ℃, obtain having the ion load hyperbranched polyacrylamide copolymer, the viscosity in aqueous solution scope of its 0.1% mass concentration is 9.5-20mPa.s.
This technical scheme has following beneficial effect:
1. structure and characteristic that preparation technology of the present invention utilizes modified natural polymer to have are at first carried out the chelating load to high volence metal ion, be about to its crosslinked action sealing, again through radioactivation, by with water-soluble monomer graft copolymerization, preparation has the ion load hyperbranched polyacrylamide copolymer, this method not only can be introduced metal ion on the polymer chain, and can keep the good solubility energy.Because this polymkeric substance has high branching, high molecular concurrently and is rich in the polyvalent metal ion constructional feature, therefore, in using, flocculation realizes dispensing synchronously, can simplify procedures, improve process efficiency.
2. the natural polymer pre-irradiation after utilizing cobalt source or rumbatron with modification produces (peroxide or subside the center) living radical, and causes unsaturated water-soluble monomer outside the venue and carry out graft copolymerization.On the natural polymer main chain, introduce the polymkeric substance side chain, since this natural polymer in modification process with the ion load chelating, and seal its cross-linking properties, therefore, adopt the method for polycomponent graft copolymerization, can prepare the polyacrylamide copolymer of the high degree of branching and ion load type, and guarantee water-soluble good.
3. the present invention combines the advantage of master-secondary flocculation technique and usefulness, simplifies flocculation process, improves flocculation efficiency.
The specific embodiment of the present invention:
Embodiment 1:
A kind of have an ion load hyperbranched polyacrylamide copolymer, its composition comprises: natural polymer, polyvalent metal salt, acrylamide, vinylformic acid, urea, sodium acetate, the muriate of magnesium calcium aluminium, described natural polymer chitin, starch or cellulosic parts by weight are 5 grams, the parts by weight of described polyvalent metal salt calcium chloride or aluminum chloride are 1 gram, described acrylamide parts by weight are 80 grams, described acrylic acid parts by weight are 10 grams, its preparation technology is: get the natural polymer chitin, starch or cellulosic parts by weight are 5 grams, the polyvalent metal salt magnesium chloride, the parts by weight of calcium chloride or aluminum chloride are 1 gram, the acrylamide parts by weight are 80 grams, acrylic acid parts by weight are 10 grams, the parts by weight of described urea are 2 grams, the parts by weight of sodium acetate are 1 gram, the muriatic parts by weight of magnesium calcium aluminium are 1 gram, with natural polymer and polyvalent metal salt after 50-70 ℃ of heating fusion, carry out the room temperature irradiation activation, irradiation dose is 60kGy, add acrylamide then, vinylformic acid, graft copolymerization outside the venue takes place in additive, polymerization temperature is 60-70 ℃, obtain having the ion load hyperbranched polyacrylamide copolymer, the viscosity in aqueous solution scope of its 0.1% mass concentration is 9.5-20mPa.s.
Embodiment 2:
A kind of have an ion load hyperbranched polyacrylamide copolymer, its composition comprises: natural polymer, polyvalent metal salt, acrylamide, vinylformic acid, urea, sodium acetate, the muriate of magnesium calcium aluminium, described natural polymer chitin, starch or cellulosic parts by weight are 7 grams, the parts by weight of described polyvalent metal salt calcium chloride or aluminum chloride are 3 grams, described acrylamide parts by weight are 68 grams, described acrylic acid parts by weight are 12 grams, the parts by weight of described urea are 3 grams, the parts by weight of sodium acetate are 3 grams, the muriatic parts by weight of magnesium calcium aluminium are 2 grams, its preparation technology is: get the natural polymer chitin, starch or cellulosic parts by weight are 7 grams, the polyvalent metal salt magnesium chloride, the parts by weight of calcium chloride or aluminum chloride are 3 grams, the acrylamide parts by weight are 68 grams, acrylic acid parts by weight are 12 grams, the parts by weight of described urea are 3 grams, the parts by weight of sodium acetate are 3 grams, the muriatic parts by weight of magnesium calcium aluminium are 2 grams, with natural polymer and polyvalent metal salt after 50-70 ℃ of heating fusion, carry out the room temperature irradiation activation, irradiation dose is 70kGy, add acrylamide then, vinylformic acid, graft copolymerization outside the venue takes place in additive, polymerization temperature is 60-70 ℃, obtain having the ion load hyperbranched polyacrylamide copolymer, the viscosity in aqueous solution scope of its 0.1% mass concentration is 9.5-20mPa.s.
Embodiment 3:
A kind of have an ion load hyperbranched polyacrylamide copolymer, its composition comprises: natural polymer, polyvalent metal salt, acrylamide, vinylformic acid, with urea, sodium acetate, the muriate of magnesium calcium aluminium is as additive, described natural polymer chitin, starch or cellulosic parts by weight are 10 grams, described polyvalent metal salt magnesium chloride, the parts by weight of calcium chloride or aluminum chloride are 5 grams, described acrylamide parts by weight are 75 grams, described acrylic acid parts by weight are 5 grams, the parts by weight of described urea are 5 grams, the parts by weight of sodium acetate are 4 grams, the muriatic parts by weight of magnesium calcium aluminium are 1 gram, its preparation technology is: get the natural polymer chitin, starch or cellulosic parts by weight are 10 grams, the parts by weight of polyvalent metal salt calcium chloride or aluminum chloride are 5 grams, the acrylamide parts by weight are 75 grams, acrylic acid parts by weight are 5 grams, the parts by weight of described urea are 5 grams, the parts by weight of sodium acetate are 4 grams, the muriatic parts by weight of magnesium calcium aluminium are 1 gram, with natural polymer and polyvalent metal salt after 50-70 ℃ of heating fusion, carry out the room temperature irradiation activation, irradiation dose is 90kGy, add acrylamide then, vinylformic acid, graft copolymerization outside the venue takes place in additive, polymerization temperature is 60-70 ℃, obtain having the ion load hyperbranched polyacrylamide copolymer, the viscosity in aqueous solution scope of its 0.1% mass concentration is 9.5-20mPa.s.
Claims (4)
1. one kind has the ion load hyperbranched polyacrylamide copolymer, its composition comprises: the muriate of natural polymer, polyvalent metal salt, acrylamide, vinylformic acid, urea, sodium acetate, magnesium calcium aluminium, it is characterized in that: the parts by weight of described natural polymer are 5-50, the parts by weight of described polyvalent metal salt are 1-5, described acrylamide parts by weight are 60-90, described acrylic acid parts by weight are 5-20, and the parts by weight of described urea are that the parts by weight of 0-5, sodium acetate are that the muriatic parts by weight of 0-5, magnesium calcium aluminium are 0-5.
2. according to claim 1 have an ion load hyperbranched polyacrylamide copolymer, and it is characterized in that: described natural polymer is chitin, starch or Mierocrystalline cellulose.
3. according to claim 1 and 2 have an ion load hyperbranched polyacrylamide copolymer, and it is characterized in that: described polyvalent metal salt is magnesium chloride, calcium chloride or aluminum chloride.
4. described preparation technology of claim 1 with ion load hyperbranched polyacrylamide copolymer, it is characterized in that: the parts by weight of getting natural polymer are 5-50, the parts by weight of polyvalent metal salt are 1-5, the acrylamide parts by weight are 60-90, acrylic acid parts by weight are 5-20, the parts by weight of additive are 0-5, with natural polymer and polyvalent metal salt after 50-70 ℃ of heating fusion, carry out radioactivation, irradiation dose is 50-100kGy, and then adding acrylamide, vinylformic acid, graft copolymerization outside the venue takes place in additive, polymerization temperature is 60-70 ℃, obtain having the ion load hyperbranched polyacrylamide copolymer, the viscosity in aqueous solution scope of its 0.1% mass concentration is 9.5-20mPa.s.
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| CN200710071784A CN101245124B (en) | 2007-02-14 | 2007-02-14 | Hyperbranched polyacrylamide copolymer with ion load |
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| CN200710071784A CN101245124B (en) | 2007-02-14 | 2007-02-14 | Hyperbranched polyacrylamide copolymer with ion load |
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| CN101245124B CN101245124B (en) | 2010-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102977271A (en) * | 2012-12-14 | 2013-03-20 | 西北师范大学 | Method for preparing chitosan/crylic acid composite through initiating polymerization by using glow discharge electrolysis plasma |
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| CN1089727C (en) * | 1997-04-11 | 2002-08-28 | 广州市环境保护科学研究所 | Method for preparing cation/amphoteric graft polyacrylamide flocculating agent |
| CN1266822A (en) * | 1999-03-12 | 2000-09-20 | 中国科学院生态环境研究中心 | Polyaluminium chloride and polyacrylamide compounded efficient flocculant and its preparing process |
| CN1318464C (en) * | 2005-01-14 | 2007-05-30 | 华南理工大学 | Chitosan graft ternary polymerization polymeric flocculant and its preparation method and use |
| CN1667007A (en) * | 2005-04-01 | 2005-09-14 | 大连民生环保科技有限公司 | Starch-base macromolecules environmental protection flocculant, process for preparing same and use thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102977271A (en) * | 2012-12-14 | 2013-03-20 | 西北师范大学 | Method for preparing chitosan/crylic acid composite through initiating polymerization by using glow discharge electrolysis plasma |
| CN102977271B (en) * | 2012-12-14 | 2015-03-04 | 西北师范大学 | Method for preparing chitosan/crylic acid composite through initiating polymerization by using glow discharge electrolysis plasma |
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Assignee: Heilongjiang Zhongbei Technology Co., Ltd. Assignor: Tech. Physics Inst., Sci. Academy of Heilongjiang Prov. Contract record no.: 2011230000247 Denomination of invention: Hyperbranched polyacrylamide copolymer with ion load and preparation technique Granted publication date: 20100526 License type: Exclusive License Open date: 20080820 Record date: 20110831 |
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