CN1687163A - Multicomponent moisture holding agent in low cost and preparation method - Google Patents
Multicomponent moisture holding agent in low cost and preparation method Download PDFInfo
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- CN1687163A CN1687163A CN 200510041928 CN200510041928A CN1687163A CN 1687163 A CN1687163 A CN 1687163A CN 200510041928 CN200510041928 CN 200510041928 CN 200510041928 A CN200510041928 A CN 200510041928A CN 1687163 A CN1687163 A CN 1687163A
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Abstract
The present invention provids a preparation method of multicomponent low-cost water-retaining agent. Said water-retaining agent is prepared by adopting two organic monomers of acrylamide and acrylic acid as main agent, adding attapulgite and bentonite as reinforcing agent, using ammonium persulate or potassum persulfate as oxidant, using sodium sulfite and potassium metabisulfite as reducing agent and using N,N'-methylene-diacrylamide as cross-linking agent through a certain preparation process.
Description
Technical field
The present invention relates to a kind of water-holding agent and preparation method thereof, relate in particular to a kind of multicomponent moisture holding agent in low cost and preparation method thereof.
Background technology
Water-holding agent has obtained using widely in a lot of fields, but because the cost height is greatly limited its application.How reducing the cost of water-holding agent, is the important and instant problem of of facing at present of water-holding agent.Chinese patent CN1359974 discloses a kind of employing acrylamide and copolymerized interpolation kaolin of potassium acrylate and wilkinite, prepares moisture holding agent in low cost, produces water-holding agent with this method, is unfavorable for large-scale continuous production.Chinese patent application number is 03120346.9 to disclose 100 parts in a kind of employing vinylformic acid, preparation method through the organic-inorganic compound water retaining agent of the attapulgite 20-60 of acidification part preparation, because this method attapulgite is shared less than 1/2 in water-holding agent, production cost reduces limited, in addition, the acidified processing of attapulgite, the hydrochloric acid that uses serious to equipment corrosion, production environment is seriously polluted.
Summary of the invention
The purpose of this invention is to provide that a kind of performance is good, steady quality, water-holding agent and preparation method thereof cheaply.
The preparation method of polycomponent water-holding agent of the present invention, be earlier in blender with 1: 0.01-1: 0.2 ratio adds 38.5% acrylamide solution successively or/and pure acrylic acid, concentration are 1% N, the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=5-7 with sodium hydroxide; Again in polymerization system with 1: 0.1: 0.1: 0.01: 0.01-1: 2: 2: 0.1: 0.1 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 45 ℃-80 ℃ polyreaction 3-6 hour; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
Above-mentioned when adding acrylamide solution and pure acrylic acid in blender, the ratio of acrylamide solution and pure acrylic acid is 1: 1-3: 1, and add acrylamide solution earlier and the back that stirs adds pure acrylic acid.
Polycomponent water-holding agent according to method for preparing.
The present invention compared with prior art has the following advantages:
1, the present invention adopts acrylamide and two kinds of organic monomers of vinylformic acid as host, to add attapulgite and wilkinite is toughener, with ammonium persulphate or Potassium Persulphate is that oxygenant, S-WAT, potassium metabisulfite are reductive agent, N, N '-methylene-bisacrylamide is that linking agent is prepared from, the pH value of product is adjustable, absorption speed is fast, water-taking efficiency is high, gel-strength is good, validity period is long, steady quality, its cost only is the 30-50% of conventional water-holding agent production cost, has promoted applying of water-holding agent greatly.
2, production technique of the present invention is simple, and is easy to operate, helps accomplishing scale production.
Embodiment
Embodiment one, earlier to add 38.5% acrylamide solution, concentration successively with 1: 0.01 ratio in blender be 1% N, and the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=5 with sodium hydroxide; Again in polymerization system with 1: 0.1: 0.1: 0.01: 0.01 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 45 ℃ of polyreactions 3 hours; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
Embodiment two, earlier to add pure acrylic acid, concentration successively with 1: 0.05 ratio in blender be 1% N, and the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=5.5 with sodium hydroxide; Again in polymerization system with 1: 0.5: 0.5: 0.02: 0.02 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 50 ℃ of polyreactions 3.5 hours; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
Embodiment three, earlier to add 38.5% acrylamide solution and pure acrylic acid (ratio of acrylamide solution and pure acrylic acid is 1: 1), concentration successively with 1: 0.1 ratio in blender be 1% N, the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=6 with sodium hydroxide; Again in polymerization system with 1: 1: 1: 0.04: 0.04 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 60 ℃ of polyreactions 4 hours; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
Embodiment four, earlier to add 38.5% acrylamide solution and pure acrylic acid (ratio of acrylamide solution and pure acrylic acid is 2: 1), concentration successively with 1: 0.15 ratio in blender be 1% N, the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=6.5 with sodium hydroxide; Again in polymerization system with 1: 1.5: 1.5: 0.05: 0.05 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 70 ℃ of polyreactions 4.5 hours; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
Embodiment five, earlier to add 38.5% acrylamide solution and pure acrylic acid (ratio of acrylamide solution and pure acrylic acid is 3: 1), concentration successively with 1: 0.2 ratio in blender be 1% N, the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=7 with sodium hydroxide; Again in polymerization system with 1: 0.8: 0.8: 0.1: 0.1 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 75 ℃ of polyreactions 5 hours; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
Embodiment six, earlier to add 38.5% acrylamide solution, concentration successively with 1: 0.1 ratio in blender be 1% N, and the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=7 with sodium hydroxide; Again in polymerization system with 1: 1.8: 1.8: 0.08: 0.08 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 80 ℃ of polyreactions 6 hours; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
Claims (3)
1, a kind of preparation method of polycomponent water-holding agent, be earlier in blender with 1: 0.01-1: 0.2 ratio adds 38.5% acrylamide solution successively or/and pure acrylic acid, concentration are 1% N, the N '-methylene-bisacrylamide aqueous solution under agitation regulates polymerization system to pH value=5-7 with sodium hydroxide; Again in polymerization system with 1: 0.1: 0.1: 0.01: 0.01-1: 2: 2: 0.1: 0.1 ratio adds attapulgite, wilkinite, 1% sodium sulfite solution, potassium metabisulfite solution successively, adds a kind of raw material down after each reinforced the stirring again; Then polymerization system is moved in the polymerization reactor, 45 ℃-80 ℃ polyreaction 3-6 hour; At last the colloid that aggregates into is dried, pulverizes, sieved and promptly get the polycomponent water-holding agent.
2, the preparation method of polycomponent water-holding agent as claimed in claim 1, it is characterized in that: when in blender, adding acrylamide solution and pure acrylic acid, the ratio of acrylamide solution and pure acrylic acid is 1: 1-3: 1, and add acrylamide solution earlier and stir back adding pure acrylic acid.
3, the polycomponent water-holding agent for preparing according to method as claimed in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100419285A CN1307220C (en) | 2005-04-04 | 2005-04-04 | Multicomponent moisture holding agent in low cost and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100419285A CN1307220C (en) | 2005-04-04 | 2005-04-04 | Multicomponent moisture holding agent in low cost and preparation method |
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| CN1687163A true CN1687163A (en) | 2005-10-26 |
| CN1307220C CN1307220C (en) | 2007-03-28 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360639C (en) * | 2006-03-13 | 2008-01-09 | 上海洁翔精细化工厂 | Slow-released soil amendment and production thereof |
| CN100436496C (en) * | 2006-04-30 | 2008-11-26 | 王树禹 | Superstrong water absorber and its preparation method and selenium-enriched plant antidraught agent using same as raw material |
| CN101215207B (en) * | 2008-01-18 | 2010-06-09 | 师进 | Biochemistry fulvic acid water-loss reducer and preparation method thereof |
| CN105061029A (en) * | 2015-07-24 | 2015-11-18 | 合肥凯士新材料贸易有限公司 | Particle type water-retaining matrix capable of improving soil fertility and reducing fertilizer using amount and preparation method thereof |
| CN107022164A (en) * | 2017-03-24 | 2017-08-08 | 李军 | Enhanced anti-salt type super absorbent resin adipose membrane of a kind of attapulgite and preparation method thereof |
| CN108752130A (en) * | 2018-06-19 | 2018-11-06 | 江苏东珠景观股份有限公司 | A kind of plant raw-soil water-retaining agent and preparation method for slope greening restoration of the ecosystem |
| CN114503896A (en) * | 2021-12-29 | 2022-05-17 | 中节能大地环境修复有限公司 | Water-retaining carrier for root system of arbor and preparation method and application thereof |
| CN114773114A (en) * | 2022-05-09 | 2022-07-22 | 青岛合子肥生物科技有限公司 | Water-retention and fertilizer-retention fertilizer special for tomatoes and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231510C (en) * | 2003-03-15 | 2005-12-14 | 中国科学院兰州化学物理研究所 | Organic-inorganic composite water-retaining agent and its preparing method |
| CN1590504A (en) * | 2003-08-26 | 2005-03-09 | 中国科学院兰州化学物理研究所 | Salt alkali resistance water preserving agent and its preparation method |
-
2005
- 2005-04-04 CN CNB2005100419285A patent/CN1307220C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360639C (en) * | 2006-03-13 | 2008-01-09 | 上海洁翔精细化工厂 | Slow-released soil amendment and production thereof |
| CN100436496C (en) * | 2006-04-30 | 2008-11-26 | 王树禹 | Superstrong water absorber and its preparation method and selenium-enriched plant antidraught agent using same as raw material |
| CN101215207B (en) * | 2008-01-18 | 2010-06-09 | 师进 | Biochemistry fulvic acid water-loss reducer and preparation method thereof |
| CN105061029A (en) * | 2015-07-24 | 2015-11-18 | 合肥凯士新材料贸易有限公司 | Particle type water-retaining matrix capable of improving soil fertility and reducing fertilizer using amount and preparation method thereof |
| CN107022164A (en) * | 2017-03-24 | 2017-08-08 | 李军 | Enhanced anti-salt type super absorbent resin adipose membrane of a kind of attapulgite and preparation method thereof |
| CN108752130A (en) * | 2018-06-19 | 2018-11-06 | 江苏东珠景观股份有限公司 | A kind of plant raw-soil water-retaining agent and preparation method for slope greening restoration of the ecosystem |
| CN108752130B (en) * | 2018-06-19 | 2021-07-09 | 江苏东珠景观股份有限公司 | Plant-growing soil water-retaining agent for slope greening ecological restoration and preparation method thereof |
| CN108752130B8 (en) * | 2018-06-19 | 2021-07-27 | 东珠生态环保股份有限公司 | Plant-growing soil water-retaining agent for slope greening ecological restoration and preparation method thereof |
| CN114503896A (en) * | 2021-12-29 | 2022-05-17 | 中节能大地环境修复有限公司 | Water-retaining carrier for root system of arbor and preparation method and application thereof |
| CN114773114A (en) * | 2022-05-09 | 2022-07-22 | 青岛合子肥生物科技有限公司 | Water-retention and fertilizer-retention fertilizer special for tomatoes and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1307220C (en) | 2007-03-28 |
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