CN1699508A - Saline-resistant multifunctional water-preserving agent and method for preparing same - Google Patents
Saline-resistant multifunctional water-preserving agent and method for preparing same Download PDFInfo
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- CN1699508A CN1699508A CN 200410045450 CN200410045450A CN1699508A CN 1699508 A CN1699508 A CN 1699508A CN 200410045450 CN200410045450 CN 200410045450 CN 200410045450 A CN200410045450 A CN 200410045450A CN 1699508 A CN1699508 A CN 1699508A
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Abstract
The invention discloses a saline-resistant multifunctional water-preserving agent and method for preparation, wherein the water-loss reducer is prepared by using Attaplgite clay, starch, acrylamide, humic acid, cross linking agent and initiating agent as the raw material through the process of cross bonding polymerization. The water-loss reducer has the multifunction of organic-inorganic hybridization alkali-salt resistance.
Description
Technical field
The present invention relates to a kind of multi-functional water-holding agent that is applied to high salinity and lean soil afforestation usefulness and preparation method thereof.
Background technology
China western part is vast in territory, ABUNDANT NATUREAL RESOURSES.But owing to the shortage of water resources and long-term overcutting, cross and cultivate, overgrazing, cross and human activity such as adopt, land deteriorations such as western water and soil flowing water, Desertification, salinification are serious; Natural disasteies such as arid, sandstorm take place increased, have become the important restraining factors of western economy and social sustainable development.For this reason, country has implemented strategy to develop western regions, and with the recovery of ecotope as important construction content.
Country and local government had dropped into great amount of manpower and material resources and financial resources in recent years, had carried out the recovery and the improvement work of ecotope, had obtained certain achievement, but the surviving rate of afforestation is undesirable.Its major cause: the one, use conventional methods plantation more, not enough to the attention of novel material and technology; The 2nd, although part has adopted novel material such as water-holding agent, because water-holding agent salt tolerant alkali not, especially poor to the hard water soaking effect of calcic, magnesium ion, the result of afforestation is also undesirable; The 3rd, the place of vegetation desert often soil with organic matter is also very poor, and the water-holding agent that only has the water-absorbing-retaining function is difficult to play a role.Therefore, at present practical situation, exploitation is fit to western afforestation with the multi-functional water-holding agent of salt tolerant alkali, improves kind of the surviving rate of tree, has become the precondition and guarantee that western eco-environment is recovered.We (application number 03120346.9) once selected for use the cheap inorganic clay-Attapulgite with salt tolerance to prepare novel organic-inorganic composite water retaining agent with vinylformic acid, vinylformic acid and acrylamide and starch and acrylic amide graft copolymerization respectively, it is greatly enhanced at distilled water and physiological saline and the water-intake rate that contains in the 0.5% calcium magnesium solution, but in such water-holding agent, only contain the required trace element of plant, and do not have necessary for plant growth organotrophy composition.
Summary of the invention
For the deficiency that overcomes existing water-holding agent salt tolerant alkali with satisfy the demand of western loess area, the object of the present invention is to provide a kind ofly not only to have had better salt tolerant alkalescence and can but also have multi-functional water-holding agent of slowly-releasing organic matter and preparation method thereof to the necessary for plant growth organic matter.
The present invention realizes by following measure:
Adopt cheap attapulgite, starch, humic acids and acrylamide main raw material as compound water retaining agent, add initiator and linking agent, in the aqueous solution, make water preservation through graft copolymerization, crosslinked, hydrolysis, washing, drying, operation such as pulverize, sieve.
Attapulgite is a kind of zeopan mineral of chain layer structure, and western reserves are abundant, cheap in China.There is a large amount of wetting ability silicon hydroxyls in attapulgite's surface, can with the effective graft copolymerization of vinyl monomer, can strengthen simultaneously the gel-strength of composite water absorbing agent.Starch is a kind of hydrophilic natural macromolecule, with its raw material as the preparation high water absorbency polymer, has low-cost and biodegradable characteristics.Humic acids is a kind of organic fertilizer of widespread use, the water-holding agent that it and other composition copolymerization are formed, have the slow organic function that discharges,, can satisfy the necessary for plant growth nutritive ingredient simultaneously in conjunction with required trace element such as potassium, the iron etc. of various crop in the Attapulgite chain layer.
The multi-functional water-holding agent of a kind of salt tolerant alkali is characterized in that the water-holding agent raw materials in part by weight is: 100 parts of acrylamides, starch 20-60 part, attapulgite 20-60 part, humic acids 20-40 part, initiator 0.5-2.0 part, linking agent 0.02-0.5 part; Wherein initiator is selected from ammonium persulphate or Potassium Persulphate, and linking agent is selected from N, N '-methylene-bisacrylamide or glycerine.
The preparation method of the multi-functional water-holding agent of salt tolerant alkali, it is characterized in that at first starch being mixed with distilled water the back 50-100 ℃ of following gelatinization 20 minutes-1 hour, add attapulgite, acrylamide, humic acids, linking agent and initiator then, be warming up to 40-90 ℃ of reaction after 3-5 hour, add the 4-6M sodium hydroxide solution at last, be warming up to 90-100 ℃ of reaction 1-3 hour, product is made water-holding agent through washing, drying, pulverizing.
The particle diameter of attapulgite is 0.03-0.05mm in the aforesaid method.
The weight ratio of starch and distilled water is 10-40 in the aforesaid method.
The mol ratio of sodium hydroxide and acrylamide is 1 in the aforesaid method: 0.2-0.8.
Attapulgite will carry out acidification in the aforesaid method, specifically is to use hydrochloric acid soaking at room temperature 20-40 hour, dries then, pulverizes.
Compared with prior art, the present invention has the following advantages: owing to used cheap attapulgite, humic acids and starch, make compound water retaining agent have low-cost and biodegradable advantage.This compound water retaining agent has higher water-intake rate to the solution that contains calcium ions and magnesium ions, and the quality multiple that its dry absorbs distilled water is 300-800, and the quality multiple that absorbs 0.9%NaCl solution is 50-80, absorbs 0.5%CaCl
2And MgCl
2The quality multiple of solution is respectively 8-12 and 10-16 (and present commercial water-holding agent mostly is about 2-5).This compound water retaining agent long service life, repeat to absorb water-dehydration 5 times after still up to 80% of initial water-intake rate.Humic acids in this compound water retaining agent can slowly discharge, and satisfies the demand of plant to organic matter, and the various trace elements in the attapulgite can be made for thing and absorb simultaneously.Through the actual use in soil, find that the attapulgite in this compound water retaining agent also can improve the crumb structure of soil, improve the ventilation property and the oxygen-permeable of soil, effectively keep soil from packing together.Starch is biodegradable again after water-holding agent complete failure, can not cause secondary pollution to soil.
Embodiment
The present invention will be further described below in conjunction with embodiment.
Embodiment 1:
Natural attapulgite, is dried to constant weight for 100-120 ℃ after 24 hours with the salt acid soak, standby after pulverizing.With the mixture of 12 gram W-Gums and 130ml distilled water 95 ℃ of following gelatinizations after 30 minutes, be cooled to 40 ℃, add 14 gram attapulgites, 36 gram acrylamides, 7 gram humic acid, 0.7 gram initiator under the vigorous stirring, 0.021 gram linking agent is warming up to 50-70 ℃ and kept 3-5 hour.Be warming up to 95 ℃ then, add the sodium hydroxide solution 60ml of 5M, kept 1 hour.Product is dried to constant weight under 70 ℃, pulverize, cross 40 order mesh screens.The every gram of product is inhaled distilled water 623 grams, inhales 0.9%NaCl solution 78 grams, and color and luster is faint yellow.
Embodiment 2:
Natural attapulgite, is dried to constant weight for 120 ℃ after 24 hours with the salt acid soak, standby after pulverizing.With the mixture of 60 gram W-Gums and 1250ml distilled water 95 ℃ of following gelatinizations after 50 minutes, be cooled to 40 ℃, add 81 gram attapulgites, 180 gram acrylamides, 81 gram humic acid, 4.1 gram initiators under the vigorous stirring, 0.12 gram linking agent is warming up to 50-70 ℃ and kept 3-5 hour.Be warming up to 95 ℃ then, add the sodium hydroxide solution 300ml of 5M, kept 1 hour.Product is dried to constant weight under 70 ℃, pulverize, cross 40 order mesh screens.The every gram of product is inhaled distilled water 561 grams, inhales 0.9%NaCl solution 63 grams, and color and luster is faint yellow.
Embodiment 3:
Use the salt acid soak after 24 hours natural attapulgite, 120 ℃ dry to constant weight, standby after pulverizing.With the mixture of 20 gram yam starchs and 350ml distilled water 95 ℃ of following gelatinizations after 30 minutes, be cooled to 40 ℃, add 27 gram attapulgites, 60 gram acrylamides, 27 gram humic acid, 1.36 gram initiators, 0.04 gram linking agent under the vigorous stirring, be warming up to 50-70 ℃ and kept 3-5 hour.Be warming up to 95 ℃ then, add the sodium hydroxide solution 68ml of 5M, kept 2 hours.Product is dried to constant weight under 70 ℃, pulverize, cross 40 order mesh screens.The every gram of product is inhaled distilled water 692 grams, inhales 0.9%NaCl solution 65 grams, and color and luster is faint yellow.
Claims (5)
1, the multi-functional water-holding agent of a kind of salt tolerant alkali is characterized in that the water-holding agent raw materials in part by weight is: 100 parts of acrylamides, starch 20-60 part, attapulgite 20-60 part, humic acids 20-40 part, initiator 0.5-2.0 part, linking agent 0.02-0.5 part; Wherein initiator is selected from ammonium persulphate or Potassium Persulphate, and linking agent is selected from N, N '-methylene-bisacrylamide or glycerine.
2, the preparation method of water-holding agent as claimed in claim 1, it is characterized in that at first starch being mixed with distilled water the back 50-100 ℃ of following gelatinization 20 minutes-1 hour, add attapulgite, acrylamide, humic acids, linking agent and initiator then, be warming up to 40-90 ℃ of reaction after 3-5 hour, add the 4-6M sodium hydroxide solution at last, be warming up to 90-100 ℃ of reaction 1-3 hour, product is made water-holding agent through washing, drying, pulverizing.
3, method as claimed in claim 2, the particle diameter that it is characterized in that attapulgite is 0.03-0.05mm.
4, method as claimed in claim 2, the weight ratio that it is characterized in that starch and distilled water is 10-40.
5, method as claimed in claim 2, the mol ratio that it is characterized in that sodium hydroxide and acrylamide is 1: 0.2-0.8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410045450 CN1699508A (en) | 2004-05-21 | 2004-05-21 | Saline-resistant multifunctional water-preserving agent and method for preparing same |
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| CN 200410045450 CN1699508A (en) | 2004-05-21 | 2004-05-21 | Saline-resistant multifunctional water-preserving agent and method for preparing same |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463247B (en) * | 2007-12-21 | 2012-10-24 | 中国科学院沈阳应用生态研究所 | Composite type soil water retention agent and preparation |
| CN102775992A (en) * | 2012-08-22 | 2012-11-14 | 乌鲁木齐中汇国豪生物科技有限公司 | Organic-inorganic multifunctional water-retaining agent for resisting saline and alkaline and preparation method thereof |
| CN102875260A (en) * | 2012-10-22 | 2013-01-16 | 江苏花海农业科技有限公司 | Production method of granular saline-alkaline soil water holding slow release fertilizer |
| CN101462911B (en) * | 2007-12-21 | 2013-06-12 | 中国科学院沈阳应用生态研究所 | Special moisture preservation compound fertilizer for maize in arid and semi-arid area and preparation thereof |
| CN106047357A (en) * | 2016-05-31 | 2016-10-26 | 山东胜伟园林科技有限公司 | Method for performing natural soil greening on slight alkaline land by using salt-resistant water-retaining agent containing attapulgite |
| CN106365887A (en) * | 2016-08-25 | 2017-02-01 | 董晓 | Preparation method of saline-alkaline-tolerant fertilizing-type water retaining agent |
| CN106986708A (en) * | 2017-05-25 | 2017-07-28 | 安徽梅兰园林景观工程有限公司 | A kind of afforestation water-loss reducer of soil and preparation method |
| CN107365588A (en) * | 2017-08-03 | 2017-11-21 | 山东润涵新材料科技有限公司 | Drought-resistant water-preserving is from loosening the soil the special water-loss reducer of type epipremnum aureum, matrix and preparation method thereof |
| CN107384434A (en) * | 2017-08-30 | 2017-11-24 | 霍邱金木鱼农业科技有限公司 | A kind of biomass soil conditioner and preparation method thereof |
| CN107699246A (en) * | 2017-10-18 | 2018-02-16 | 唐宏泉 | A kind of environment protection type soil water-loss reducer and its preparation technology |
| CN108048106A (en) * | 2017-12-15 | 2018-05-18 | 苏州纳贝通环境科技有限公司 | One kind efficiently goes saline and alkaline retaining soil moisture modifying agent and preparation method and application |
| 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 |
| CN114409473A (en) * | 2022-01-28 | 2022-04-29 | 青岛首科新材料有限公司 | Nutritional water-retaining agent and preparation method thereof |
| CN115181575A (en) * | 2022-08-19 | 2022-10-14 | 润涵(山东)生态科技有限公司 | Functional water-retaining agent |
-
2004
- 2004-05-21 CN CN 200410045450 patent/CN1699508A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463247B (en) * | 2007-12-21 | 2012-10-24 | 中国科学院沈阳应用生态研究所 | Composite type soil water retention agent and preparation |
| CN101462911B (en) * | 2007-12-21 | 2013-06-12 | 中国科学院沈阳应用生态研究所 | Special moisture preservation compound fertilizer for maize in arid and semi-arid area and preparation thereof |
| CN102775992A (en) * | 2012-08-22 | 2012-11-14 | 乌鲁木齐中汇国豪生物科技有限公司 | Organic-inorganic multifunctional water-retaining agent for resisting saline and alkaline and preparation method thereof |
| CN102875260A (en) * | 2012-10-22 | 2013-01-16 | 江苏花海农业科技有限公司 | Production method of granular saline-alkaline soil water holding slow release fertilizer |
| CN102875260B (en) * | 2012-10-22 | 2014-03-26 | 江苏农盛废弃物循环再利用有限公司 | Production method of granular saline-alkaline soil water holding slow release fertilizer |
| CN106047357A (en) * | 2016-05-31 | 2016-10-26 | 山东胜伟园林科技有限公司 | Method for performing natural soil greening on slight alkaline land by using salt-resistant water-retaining agent containing attapulgite |
| CN106365887A (en) * | 2016-08-25 | 2017-02-01 | 董晓 | Preparation method of saline-alkaline-tolerant fertilizing-type water retaining agent |
| CN106986708A (en) * | 2017-05-25 | 2017-07-28 | 安徽梅兰园林景观工程有限公司 | A kind of afforestation water-loss reducer of soil and preparation method |
| CN107365588A (en) * | 2017-08-03 | 2017-11-21 | 山东润涵新材料科技有限公司 | Drought-resistant water-preserving is from loosening the soil the special water-loss reducer of type epipremnum aureum, matrix and preparation method thereof |
| CN107365588B (en) * | 2017-08-03 | 2020-07-17 | 山东润涵新材料科技有限公司 | Special drought-resistant water-retaining self-loosening water-retaining agent and matrix for scindapsus aureus and preparation method of special drought-resistant water-retaining self-loosening water-retaining agent and matrix |
| CN107384434A (en) * | 2017-08-30 | 2017-11-24 | 霍邱金木鱼农业科技有限公司 | A kind of biomass soil conditioner and preparation method thereof |
| CN107699246A (en) * | 2017-10-18 | 2018-02-16 | 唐宏泉 | A kind of environment protection type soil water-loss reducer and its preparation technology |
| CN108048106A (en) * | 2017-12-15 | 2018-05-18 | 苏州纳贝通环境科技有限公司 | One kind efficiently goes saline and alkaline retaining soil moisture modifying agent and preparation method and application |
| 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 |
| CN114409473A (en) * | 2022-01-28 | 2022-04-29 | 青岛首科新材料有限公司 | Nutritional water-retaining agent and preparation method thereof |
| CN115181575A (en) * | 2022-08-19 | 2022-10-14 | 润涵(山东)生态科技有限公司 | Functional water-retaining agent |
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