CN105732898A - Novel process of producing super absorbent resin from carboxymethyl potato starch and acrylamide as raw materials - Google Patents
Novel process of producing super absorbent resin from carboxymethyl potato starch and acrylamide as raw materials Download PDFInfo
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- CN105732898A CN105732898A CN201510284904.6A CN201510284904A CN105732898A CN 105732898 A CN105732898 A CN 105732898A CN 201510284904 A CN201510284904 A CN 201510284904A CN 105732898 A CN105732898 A CN 105732898A
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Abstract
The invention discloses a novel process of producing nitrogen-containing super absorbent resin from carboxymethyl potato starch and acrylamide as raw materials. The process includes the following steps: hydrolyzing acrylamide with sodium hydroxide, and heating the raw materials in water bath with protection of nitrogen for graft-polymerizing the carboxymethyl potato starch and partially-hydrolyzed acrylamide at 30-60 DEG C to prepare the super absorbent resin. An optimum product reaches 3450 g/g in maximum water absorption quantity in 5000 times of deionized water. Through an orthogonal experiment, a product being 3578 g/g in water absorption quantity is designed. By analyzing the orthogonal experiment result and conditions, the sequence of factors that influent the water absorption quantity of the nitrogen-containing super absorbent resin is obtained and described as follows, from strong to weak: the ratio of the carboxymethyl potato starch to the acrylamide, hydrolysis degree of the acrylamide, water consumption amount of dissolving the carboxymethyl potato starch, usage amount of crosslinker, and finally usage amount of initiator. In the process, the parent body, carboxymethyl potato starch, can be dissolved in water, so that gelatinization is free, graft-polymerization temperature is low, and no high temperature reaction is required, so that the process is simple, is easy to carry out, is low in cost, is excellent in product performance and is suitable for large-scale production and product promotion.
Description
Technical field
The preparation method that the present invention relates to a kind of functional high molecule material High hydrophilous resin for fields such as agricultural gardening, physiological hygiene, daily-use chemical industry, building trade, environmental improvements, refers in particular to a kind of novel simple method for preparing being primary raw material synthesizing super absorbent resin with carboxymethyl potato starch, acrylamide, sodium hydroxide.
Background technology
High hydrophilous resin is that a class is both water insoluble, is also insoluble in the general name of the high molecular polymer with good absorbent and water retention property of organic solvent.It has the tridimensional network of strong absorptive group, it is possible to absorbs rapidly and keeps large quantity of moisture, is a class set water suction, water conservation, and slow release is in the functional high molecule material of one.
High hydrophilous resin and conventional absorbent paper material, as sponge, silica gel, activated carbon are compared with absorbent cotton etc., there is the advantages such as water absorbent rate height, rate of water absorption is fast, water holding capacity is strong, even if pressurization is also difficult, water is separated, to the good stability of light, heat, acid and alkali and have good repeat performance and biodegradability.
The preparation method of High hydrophilous resin is a lot, and synthesis material enriches, and production technology is different, but the research work of the current domestic High hydrophilous resin overwhelming majority is still in laboratory stage, the pilot scale stage that proceeds to having, but industrialized seldom, but expensive goods is mainly also dependent on import.China is that High hydrophilous resin consumes big country, and High hydrophilous resin has wide market prospect in China, so, the further investigation of High hydrophilous resin is had very important significance.
Summary of the invention
The invention provides super absorbent resin fat prod that a kind of operating procedure is simple, water absorbing capacity is strong and preparation method thereof.
Its method and step are as follows:
(1) carboxymethyl potato starch is mixed by the mass ratio of 1:10～26 with deionized water；Weigh the acrylamide of carboxymethyl potato starch quality 3～14 times, weigh the sodium hydroxide of acrylamide quality 0.0564-0.45 times, with the above-mentioned sodium hydroxide of deionized water dissolving of acrylamide quality 0.6 times；At room temperature with above-mentioned sodium hydroxide solution hydrolyzed acrylamide；
(2) above-mentioned carboxymethyl potato starch is mixed homogeneously with the acrylamide solution of sodium hydroxide partial hydrolysis with the mixed liquor of deionized water in reaction bulb, add the potassium persulfate solution containing carboxymethyl potato starch quality 0.8～3.6% and do initiator, add the N containing carboxymethyl potato starch quality 0.4～1.1%, N ＇-methylene-bisacrylamide solution makees cross-linking agent, stirring is so as to uniformly, pass into nitrogen, it is slowly heated, temperature of reaction system is made to be stepped up, polyreaction occurs between 30-60 DEG C, temperature continues rising and reaches insulation 1.5h when 80 DEG C, then take out product, drying, pulverize and obtain High hydrophilous resin.Product under optimum condition water absorption in the deionized water of 5000 times reaches 3450g/g.
(3) above-mentioned condition experiment is carried out data analysis arrangement, derive orthogonal experiment condition, 16 groups of orthogonal experiments have been carried out according to above-mentioned experimental technique, product under gained optimum condition most high water absorption in the deionized water of 5000 times reaches 3578g/g, and show that affecting nitrogen-containing super absorbent resin water absorption influence factor acts on size sequence by analyzing Orthogonal experiment results, namely carboxymethyl potato starch dissolves carboxymethyl potato starch water consumption > dosage of crosslinking agent > initiator amount with acrylamide proportioning > acrylamide degree of hydrolysis >.
(4) obtained nitrogen-containing super absorbent resin has been carried out imbibition ability test in different solution, obtain imbibition ability according to deionized water, tap water, artificial blood, artificial urine, normal saline order weaken successively.
As it has been described above, the alkali used by hydrolyzed acrylamide of the present invention is sodium hydroxide, the concentration of the potassium persulfate solution of preparation is 10mg/ml, N, and the concentration of N ＇-methylene-bisacrylamide solution is 2.5mg/ml.
Advantages of the present invention:
(1) carboxymethyl potato starch is soluble in water, does not need traditional gelatinizing technique in process prepared by High hydrophilous resin；
(2) polymeric reaction temperature is low, can reduce energy expenditure；
(3) product water absorption is high.
Accompanying drawing explanation
Fig. 1 is the process chart of carboxymethyl potato starch and acrylamide synthesis nitrogen-containing super absorbent resin
Fig. 2 is the initiator amount influence curve to nitrogen-containing super absorbent resin water absorption
Fig. 3 is the dosage of crosslinking agent influence curve to nitrogen-containing super absorbent resin water absorption
Fig. 4 is the acrylamide degree of hydrolysis influence curve to nitrogen-containing super absorbent resin water absorption
Fig. 5 is the water consumption the dissolving carboxymethyl potato starch influence curve to nitrogen-containing super absorbent resin water absorption
Fig. 6 is carboxymethyl potato starch and the proportion of acylamide influence curve to nitrogen-containing super absorbent resin water absorption
Fig. 7 is the orthogonal design table of synthesis nitrogen-containing super absorbent resin
Fig. 8 is nitrogen-containing super absorbent resin liquid absorbency rate block diagram in different solutions.
Detailed description of the invention
Embodiment 1: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 3ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 35 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1846g/g.
Embodiment 2: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 39 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 2313g/g.
Embodiment 3: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 9ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 28 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1365g/g.
Embodiment 4: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 4ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 29 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 649g/g.
Embodiment 5: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 8ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 31 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1124g/g.
Embodiment 6: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 10ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 32 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1822g/g.
Embodiment 7: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 1.41g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 48 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1063g/g.
Embodiment 8: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 4.23g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 46 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 3150g/g.
Embodiment 9: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 9.86g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 33 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1102g/g.
Embodiment 10: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 25ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 34 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1747g/g.
Embodiment 11: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 45ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 37 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 2701g/g.
Embodiment 12: weigh 25g acrylamide, is dissolved in 25ml deionized water, weighs 7.04g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 65ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 40 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 2023g/g.
Embodiment 13: weigh 7.5g acrylamide, is dissolved in 25ml deionized water, weighs 2.11g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 48 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 1078g/g.
Embodiment 14: weigh 17.5g acrylamide, is dissolved in 25ml deionized water, weighs 4.93g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 41 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 2680g/g.
Embodiment 15: weigh 30g acrylamide, is dissolved in 25ml deionized water, weighs 8.45g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 30ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 5ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 41 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 699g/g.
Embodiment 16: weigh 20g acrylamide, is dissolved in 25ml deionized water, weighs 3.38g sodium hydroxide, is dissolved in 15ml deionized water, is added drop-wise in aforesaid propylene amide solution by this sodium hydroxide solution, and under room temperature, stirring makes acrylamide be hydrolyzed；Weigh 2.5g carboxymethyl potato starch to mix homogeneously with 35ml deionized water, the hydrolyzed solution of acrylamide is mixed homogeneously with carboxymethyl potato starch mixed liquor, adding 4ml concentration is the potassium persulfate solution of 10mg/ml, 6ml concentration is the N of 2.5mg/ml, N ＇-methylene-bisacrylamide solution, pass into nitrogen, it is slowly heated and makes temperature of reaction system be stepped up, polyreaction occurs at 52 DEG C, it is incubated 1.5h when temperature rises to 80 DEG C, then take out product, drying, pulverizing obtains High hydrophilous resin, the High hydrophilous resin obtained by the present embodiment water absorption in 5000 times of deionized waters is 3578g/g.
Claims (5)
1. prepare the new technology of High hydrophilous resin with carboxymethyl potato starch and acrylamide for raw material, be characterised by that its method and step are:
(1) carboxymethyl potato starch is mixed by the mass ratio of 1:10～26 with deionized water；Weigh the acrylamide of carboxymethyl potato starch quality 3～14 times, weigh the sodium hydroxide of acrylamide quality 0.0564-0.45 times, with the above-mentioned sodium hydroxide of deionized water dissolving of acrylamide quality 0.6 times；At room temperature with above-mentioned sodium hydroxide solution hydrolyzed acrylamide；
(2) above-mentioned carboxymethyl potato starch is mixed homogeneously with the acrylamide solution of potassium hydroxide partial hydrolysis with the mixed liquor of deionized water in reaction bulb, add the potassium persulfate solution containing carboxymethyl potato starch quality 0.8～3.6% and do initiator, add the N containing carboxymethyl potato starch quality 0.4～1.1%, N ＇-methylene-bisacrylamide solution makees cross-linking agent, stirring is so as to uniformly, pass into nitrogen, it is slowly heated, temperature of reaction system is made to be stepped up, polyreaction occurs between 30-60 DEG C, temperature continues rising and reaches insulation 1.5h when 80 DEG C, then take out product, drying, pulverize and obtain High hydrophilous resin.
2. best product most high water absorption in the deionized water of 5000 times reaches 3450g/g.
3. above-mentioned condition experiment is carried out data analysis arrangement, derive orthogonal experiment condition, 16 groups of orthogonal experiments are carried out according to above-mentioned experimental technique, gained best product most high water absorption in the deionized water of 5000 times reaches 3578g/g, and show that the nitrogenous and potassium High hydrophilous resin water absorption influence factor of impact acts on size sequence by analyzing Orthogonal experiment results, namely carboxymethyl potato starch dissolves carboxymethyl potato starch water consumption > dosage of crosslinking agent > initiator amount with acrylamide proportioning > acrylamide degree of hydrolysis >.
4. pair obtained nitrogenous and potassium High hydrophilous resin has carried out imbibition ability test in different solution, obtain imbibition ability according to deionized water, tap water, artificial blood, artificial urine, normal saline order weaken successively.
5. according to claim 1 be Material synthesis High hydrophilous resin with carboxymethyl potato starch and acrylamide method, it is characterized in that the concentration of the potassium persulfate solution of preparation is 10mg/ml, N, the concentration of N ＇-methylene-bisacrylamide solution is 2.5mg/ml.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935380A (en) * | 2010-10-09 | 2011-01-05 | 内蒙古大学 | Method for preparing potassium- and nitrogen-containing high water-absorbent resin from carboxymethyl potato starch serving as raw material |
| CN102443106A (en) * | 2010-10-08 | 2012-05-09 | 天津三农金科技有限公司 | Industrial synthesis method for producing high water-absorbent resin based on delayed and advanced polymerization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102443106A (en) * | 2010-10-08 | 2012-05-09 | 天津三农金科技有限公司 | Industrial synthesis method for producing high water-absorbent resin based on delayed and advanced polymerization method |
| CN101935380A (en) * | 2010-10-09 | 2011-01-05 | 内蒙古大学 | Method for preparing potassium- and nitrogen-containing high water-absorbent resin from carboxymethyl potato starch serving as raw material |
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Application publication date: 20160706 |