CN1781982A - Organic-inorganic composite water retaining agent with fertilizer slow release function and its preparing method - Google Patents
Organic-inorganic composite water retaining agent with fertilizer slow release function and its preparing method Download PDFInfo
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- CN1781982A CN1781982A CNA2004101009071A CN200410100907A CN1781982A CN 1781982 A CN1781982 A CN 1781982A CN A2004101009071 A CNA2004101009071 A CN A2004101009071A CN 200410100907 A CN200410100907 A CN 200410100907A CN 1781982 A CN1781982 A CN 1781982A
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Abstract
The present invention is composite organic-inorganic water retaining agent with fertilizing slowly releasing function and its preparation process. The fertilizing slowly releasing water retaining agent is prepared with cheap attapulgite, humic acid capable of increasing organic matter in soil, acrylic acid and acrylamide as main material and through adding initiator and cross-linking agent, grafting copolymerization and cross-linking in water solution, washing, drying, and crushing. The water retaining agent has distilled water absorbing capacity of 400-600g/g and cost 30-40 % lower than that of available organic polymer water retaining agent. With water absorbing, water retaining and fertilizer slow releasing functions, the present invention may be used in water-saving agriculture, ecological restoring engineering and other fields.
Description
Technical field
The present invention relates to a kind of organic-inorganic composite water retaining agent and preparation method thereof with fertilizer slow release function.
Background technology
Water-holding agent is a kind of functional high molecule material, is administered in the soil not only can fully absorb irrigation water or natural precipitation, prevents moisture seepage and loss, improve efficiency of water application, and can promote the formation of soil agreegate to improve the soil pores structure, prevent erosion.Thereby water-holding agent has obtained using comparatively widely in agricultural, forestry and other water saving fields.But with vinylformic acid or acrylamide polymerization preparation, also there are deficiencies such as cost height and salt tolerant alkali poor performance in commercial at present water-holding agent mostly.In order further to reduce cost and to improve the performance of water-holding agent, the exploitation of organic inorganic hybridization water-holding agent in recent years becomes one of focus.
We once were inorganic component with the attapulgite, developed serial organic-inorganic composite water-holding agent (application number 03120346.9), the repeat performance that the compound water-holding agent of these organic-inorganics not only has high suction multiple to become reconciled, and also have higher gel-strength and low production cost.But land occupation condition is very poor in western arid and semi-arid lands, ecological recovery land used especially, and the organic matter of soil is very limited.Therefore, except that wanting low-cost and salt tolerant alkali, also must possess multi-functionally to the demand of water-holding agent simultaneously, this is just very urgent to the demand of water-holding agent with fertilizer slow-released function.
Being mixed for the soil of difficult land occupation condition at present with water-holding agent and fertilizer, is the water absorbing properties that fertilizer can influence water-holding agent on the one hand, and the fertilizer of using in this way on the other hand has quick-release.Therefore, exploitation has the water-holding agent that cost is low, water retention capacity strong and have fertilizer slow-released function, for developing water-saving agriculture and improving the ecological environment, has crucial meaning.
Summary of the invention
Purpose of the present invention is exactly at the present deficiency of water-holding agent, provides that a kind of cost is lower, good water absorption and have organic-inorganic composite water retaining agent of fertilizer slow-released function and preparation method thereof.
The present invention can realize by following measure:
We adopt cheap attapulgite and have the humic acid that improves the soil organism and vinylformic acid, acrylamide as the main raw material of compound water retaining agent, add initiator and linking agent, in the aqueous solution through graft copolymerization, crosslinked, washing, dry, pulverize and make the slow release type water-holding agent.
Attapulgite is abundant at China's reserves, and is cheap.There is a large amount of wetting ability silicon hydroxyls in the acidifying attapulgite's surface, can with the effective grafting of vinylformic acid, form organic and inorganic composite water absorbing agent with high-hydroscopicity.In the Attapulgite chain layer the required trace element of various crop such as potassium, iron etc. are arranged simultaneously, not only can bring into play the inherent effect of water-holding agent institute when being applied to agroforestry, and can play the effect of nutrition.
Humic acid not only has the effect of aspects such as improving Soil structure, soil fertility and the growth of promotion soil microorganisms, and can promote plant root system development, improves the root system vigor, strengthens photosynthesis, improves the anti-adversity ability such as disease-resistant, freeze proof of crop.Therefore, be introduced in the water-holding agent, can improve the organic content of soil.
A kind of organic-inorganic composite water retaining agent with fertilizer slow release function is characterized in that the raw materials in part by weight of water-holding agent is: 100 parts in vinylformic acid, acrylamide 20-60 part, attapulgite 10-40 part, humic acid 10-50, initiator 0.05-1.0 part, linking agent 0.05-1.0 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 compound water retaining agent is, use in the potassium hydroxide earlier and vinylformic acid, degree of neutralization is 40%-80wt%, add acrylamide and under agitation make its dissolving, add attapulgite, humic acid, linking agent and initiator then, be warming up to 60-90 ℃ of reaction 3-5 hour, product is through washing, crushed after being dried.
Compared with prior art, the present invention has the following advantages:
Owing to used cheap attapulgite and humic acid, the cost of compound water retaining agent reduced greatly.Attapulgite contains the required trace element of various plants growth in the water-holding agent, can be made for thing and absorb.This compound water retaining agent has higher water-intake rate, and its quality multiple of inhaling distilled water is 400-600g/g.A large amount of tests show that after this compound water retaining agent was used, humic acid can reach 2 months slow time of releasing in the water-holding agent, also can improve soil aggregate simultaneously.
Description of drawings
Fig. 1 is the schema of water-holding agent preparation of the present invention.
Embodiment
Below in conjunction with Fig. 1, the invention will be further described.
Embodiment 1:
2 gram attapulgites and 2 gram humic acid addings are had in the beaker of 15mL distilled water.Take by weighing vinylformic acid 4.2 grams and add in the 15mL distilled water potassium hydroxide 4mL of Dropwise 5 M.Add acrylamide 1.8 grams then and be stirred to dissolving.The Attapulgite and the humic acid solution that stir into suspension are added in the mixing solutions of vinylformic acid and acrylamide, add linking agent 0.0143 gram and initiator 0.0713 gram again.Be warming up to 70 ℃, kept 3-5 hour.Product is dried to constant weight under 70 ℃, pulverize, cross 40 order mesh screens.The every gram of the product that obtains is inhaled distilled water 664 grams, and color and luster is a black.
Embodiment 2
1 gram attapulgite and 3 gram humic acid addings are had in the beaker of 15mL distilled water.Take by weighing vinylformic acid 4.2 grams and add in the 15mL distilled water potassium hydroxide 4mL of Dropwise 5 M.Add acrylamide 1.4 grams then and be stirred to dissolving.The Attapulgite and the humic acid solution that stir into suspension are added in the mixing solutions of vinylformic acid and acrylamide, add linking agent 0.0127 gram gram and initiator 0.0713 gram again.Be warming up to 80 ℃, kept 3-5 hour.Product is dried to constant weight under 70 ℃, pulverize, cross 40 order mesh screens.The every gram of the product that obtains is inhaled distilled water 486 grams, and color and luster is a black.
Claims (2)
1, a kind of organic-inorganic composite water retaining agent with fertilizer slow release function is characterized in that the raw materials in part by weight of water-holding agent is: 100 parts in vinylformic acid, acrylamide 20-60 part, attapulgite 10-40 part, humic acid 10-50, initiator 0.05-1.0 part, linking agent 0.05-1.0 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 according to claim 1, it is characterized in that using in the potassium hydroxide earlier and vinylformic acid, degree of neutralization is 40%-80wt%, add acrylamide and under agitation make its dissolving, add attapulgite, humic acid, linking agent and initiator then, be warming up to 60-90 ℃ of reaction 3-5 hour, product is through washing, crushed after being dried.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2004101009071A CN1781982A (en) | 2004-12-02 | 2004-12-02 | Organic-inorganic composite water retaining agent with fertilizer slow release function and its preparing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2004101009071A CN1781982A (en) | 2004-12-02 | 2004-12-02 | Organic-inorganic composite water retaining agent with fertilizer slow release function and its preparing method |
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| CN1781982A true CN1781982A (en) | 2006-06-07 |
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Cited By (23)
| 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 |
| CN101215207B (en) * | 2008-01-18 | 2010-06-09 | 师进 | Biochemistry fulvic acid water-loss reducer and preparation method thereof |
| CN101870623A (en) * | 2009-04-25 | 2010-10-27 | 刘利军 | Nitrogenous super absorbent resin fertilizer and preparation method thereof |
| CN103011971A (en) * | 2012-12-26 | 2013-04-03 | 福建超大集团有限公司 | Manufacturing method of compound organic fertilizer with fertilizer-retaining and loss-controlling functions |
| CN103483070A (en) * | 2013-09-10 | 2014-01-01 | 中国科学院合肥物质科学研究院 | Controlled fertilizer technology and aid |
| CN103740375A (en) * | 2014-01-17 | 2014-04-23 | 陕西鼎天济农腐殖酸制品有限公司 | Humic acid water-retaining agent for vegetables and preparation method thereof |
| CN103787759A (en) * | 2014-01-22 | 2014-05-14 | 太原理工大学 | Preparation method for water retention type humic acid compound fertilizer |
| CN105061023A (en) * | 2015-07-24 | 2015-11-18 | 合肥凯士新材料贸易有限公司 | Granular water-retaining matrix with high water retention performance 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 |
| CN105085124A (en) * | 2015-07-31 | 2015-11-25 | 安徽省化工设计院 | Coated water retention slow release fertilizer and preparation method thereof |
| CN105732225A (en) * | 2016-02-25 | 2016-07-06 | 史丹利化肥股份有限公司 | Water-retaining agent and compound functional fertilizer thereof |
| CN105754049A (en) * | 2016-03-28 | 2016-07-13 | 深圳前海水木科技有限公司 | Water-retaining agent containing turf and used for agriculture and forestry and preparation method of water-retaining agent |
| CN106973750A (en) * | 2017-04-14 | 2017-07-25 | 惠民县新东方现代农业有限责任公司 | A kind of Chinese wax pruning method |
| CN107141168A (en) * | 2017-05-13 | 2017-09-08 | 河南英德农业科技有限公司 | A kind of retain water and nutrients soil-repairing agent |
| CN107266210A (en) * | 2017-07-31 | 2017-10-20 | 中北大学 | A kind of inorganic clay Quito nutrient macromolecule slow-release or control-release fertilizer and preparation method thereof |
| CN108610180A (en) * | 2018-06-29 | 2018-10-02 | 湖南泰谷生态工程有限公司 | A kind of organic nitrogen fixation fertilizer and preparation method thereof |
| CN109678599A (en) * | 2019-01-16 | 2019-04-26 | 深圳袁大高科农业发展有限公司 | A kind of preparation and application of the biological intelligence slow-release or control-release fertilizer of soil improvement reparation |
| CN112624859A (en) * | 2020-11-26 | 2021-04-09 | 河南省科学院高新技术研究中心 | Water-retention and fertilizer-loss-control additive based on furfural residues and continuous production process thereof |
| CN112940734A (en) * | 2021-04-26 | 2021-06-11 | 辽宁省农业科学院 | Water-retaining agent, preparation method thereof and method for constructing water-retaining plough layer by using water-retaining agent |
| 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 |
| CN114736687A (en) * | 2022-05-05 | 2022-07-12 | 中国农业大学 | Soil water-retaining agent and preparation method and application thereof |
| CN114853540A (en) * | 2022-04-14 | 2022-08-05 | 石家庄中吉化肥有限公司 | Water-retaining slow-release fertilizer |
| CN115197359A (en) * | 2022-07-14 | 2022-10-18 | 河北工程大学 | Water-retaining agent with repeated moisture absorption and release functions and preparation method thereof |
-
2004
- 2004-12-02 CN CNA2004101009071A patent/CN1781982A/en active Pending
Cited By (23)
| 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 |
| CN101215207B (en) * | 2008-01-18 | 2010-06-09 | 师进 | Biochemistry fulvic acid water-loss reducer and preparation method thereof |
| CN101870623A (en) * | 2009-04-25 | 2010-10-27 | 刘利军 | Nitrogenous super absorbent resin fertilizer and preparation method thereof |
| CN103011971A (en) * | 2012-12-26 | 2013-04-03 | 福建超大集团有限公司 | Manufacturing method of compound organic fertilizer with fertilizer-retaining and loss-controlling functions |
| CN103483070A (en) * | 2013-09-10 | 2014-01-01 | 中国科学院合肥物质科学研究院 | Controlled fertilizer technology and aid |
| CN103740375A (en) * | 2014-01-17 | 2014-04-23 | 陕西鼎天济农腐殖酸制品有限公司 | Humic acid water-retaining agent for vegetables and preparation method thereof |
| CN103787759A (en) * | 2014-01-22 | 2014-05-14 | 太原理工大学 | Preparation method for water retention type humic acid compound fertilizer |
| CN105061023A (en) * | 2015-07-24 | 2015-11-18 | 合肥凯士新材料贸易有限公司 | Granular water-retaining matrix with high water retention performance 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 |
| CN105085124A (en) * | 2015-07-31 | 2015-11-25 | 安徽省化工设计院 | Coated water retention slow release fertilizer and preparation method thereof |
| CN105732225A (en) * | 2016-02-25 | 2016-07-06 | 史丹利化肥股份有限公司 | Water-retaining agent and compound functional fertilizer thereof |
| CN105754049A (en) * | 2016-03-28 | 2016-07-13 | 深圳前海水木科技有限公司 | Water-retaining agent containing turf and used for agriculture and forestry and preparation method of water-retaining agent |
| CN106973750A (en) * | 2017-04-14 | 2017-07-25 | 惠民县新东方现代农业有限责任公司 | A kind of Chinese wax pruning method |
| CN107141168A (en) * | 2017-05-13 | 2017-09-08 | 河南英德农业科技有限公司 | A kind of retain water and nutrients soil-repairing agent |
| CN107266210A (en) * | 2017-07-31 | 2017-10-20 | 中北大学 | A kind of inorganic clay Quito nutrient macromolecule slow-release or control-release fertilizer and preparation method thereof |
| CN108610180A (en) * | 2018-06-29 | 2018-10-02 | 湖南泰谷生态工程有限公司 | A kind of organic nitrogen fixation fertilizer and preparation method thereof |
| CN109678599A (en) * | 2019-01-16 | 2019-04-26 | 深圳袁大高科农业发展有限公司 | A kind of preparation and application of the biological intelligence slow-release or control-release fertilizer of soil improvement reparation |
| CN112624859A (en) * | 2020-11-26 | 2021-04-09 | 河南省科学院高新技术研究中心 | Water-retention and fertilizer-loss-control additive based on furfural residues and continuous production process thereof |
| CN112940734A (en) * | 2021-04-26 | 2021-06-11 | 辽宁省农业科学院 | Water-retaining agent, preparation method thereof and method for constructing water-retaining plough layer by using water-retaining agent |
| 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 |
| CN114853540A (en) * | 2022-04-14 | 2022-08-05 | 石家庄中吉化肥有限公司 | Water-retaining slow-release fertilizer |
| CN114736687A (en) * | 2022-05-05 | 2022-07-12 | 中国农业大学 | Soil water-retaining agent and preparation method and application thereof |
| CN115197359A (en) * | 2022-07-14 | 2022-10-18 | 河北工程大学 | Water-retaining agent with repeated moisture absorption and release functions and preparation method thereof |
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