CN100519604C - Method for preparing high water absorbing resin in nutrition type for agricultural use - Google Patents
Method for preparing high water absorbing resin in nutrition type for agricultural use Download PDFInfo
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- CN100519604C CN100519604C CNB2006100636972A CN200610063697A CN100519604C CN 100519604 C CN100519604 C CN 100519604C CN B2006100636972 A CNB2006100636972 A CN B2006100636972A CN 200610063697 A CN200610063697 A CN 200610063697A CN 100519604 C CN100519604 C CN 100519604C
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Abstract
This invention provides a method for preparing agricultural nutritious high absorption resin. The method adds nutritious substances such as diammonium hydrogen phosphate to the polymerization system, and forms composite in the presence of initiator and crosslinker, the water absorption rate of the agricultural nutritious high absorption resin is 200-500 times, and that of physiological saline is 30-80 times. The agricultural nutritious high absorption resin has has both water absorption and nutritious functions.
Description
Technical field
The invention belongs to the super absorbent resin field, be specifically related to the preparation method of high water absorbing resin in nutrition type for agricultural use
Background technology
Though the development and use of water-holding agent have only the history in more than 30 year, its development is very noticeable.No matter be that the research or the application of synthesizing the aspect studied very active, existing starch based, as starch grafted acrylate etc., synthetic class is as polyacrylate, cellulose family etc., polymerized form has aqueous solution polymerization, inverse suspension polymerization etc., and the form of product has Powdered, pearl, membranaceous and fibrous or the like.
Application agriculturally, because water-holding agent cost height, seriously hindered the application of water-holding agent, numerous domestic scientific worker is doing a large amount of work aspect the reduction water-holding agent cost, but mainly concentrating on, most work adds in the polymerization system as wilkinite, cheap materials such as inorganic soil such as kaolin and Attapulgite mineral, reach the purpose that reduces cost, though add the hydrogel intensity after some inorganic mineral can improve the water-keeping material suction, but the water-holding agent soil addition that performance is good is lower, can not fundamentally reduce raw materials cost.Product function only has the suction the same with common water-holding agent, releases water function in addition.
Chinese patent ZL01143497.X discloses a kind of high-hydroscopicity composite resin for agricultural purpose method.It is compound high mountain range and wilkinite, improves the gel-strength of high-hydroscopicity composite resin, and reaches the purpose that reduces cost.
Summary of the invention
The invention provides the preparation method of high water absorbing resin in nutrition type for agricultural use.
The step and the condition of method of the present invention are as follows: raw material weight umber proportioning is: acrylamide 0-90 part, vinylformic acid 10-100 part, urea 10-100 part, Secondary ammonium phosphate 10-100 part, initiator 0.05-1.0 part; Linking agent 0.05-0.5 part; Described initiator adopts redox initiation system, and wherein oxygenant is: persulfuric acid ammonium salt, persulfuric acid sylvite, persulfuric acid sodium salt or hydrogen peroxide; Reductive agent is: potassium metabisulfite salt, Sodium Metabisulfite salt, S-WAT or xitix; Described linking agent is N, N '-methylene-bisacrylamide; Polymerization under logical condition of nitrogen gas, polymerization time 1-5 hour, obtains high water absorbing resin in nutrition type for agricultural use by polymerization temperature 10-80 ℃.
The water absorbent rate 200-500 of method gained high water absorbing resin in nutrition type for agricultural use of the present invention doubly inhales normal saline solution multiplying power 30-80 doubly.Have the biological and chemical good stability, have the water-holding agent of trophic function, and can reduce cost significantly, production technique and common water-holding agent production process basically identical are convenient to industrialization production.
Embodiment
Embodiment 1
With 10 parts of acrylamides, 100 parts of vinylformic acid place the 250ml beaker, add 400 parts of deionized water and stirring dissolvings, reconcile pH value with potassium hydroxide, make the system pH value about 7.0, add 10 parts of ureas, logical nitrogen is 30 minutes after 100 parts of Secondary ammonium phosphate stirring and dissolving, adds 0.05 part of oxygenant persulfuric acid ammonium salt, adding 0.1 part of reductive agent lays particular stress on the sulphite sodium back that stirs and adds linking agent N, 0.05 part of N '-methylene-bisacrylamide, polymerization when temperature is 20 ℃, polymerization time 2 hours, with product through granulation, drying is pulverized, and obtains high water absorbing resin in nutrition type for agricultural use.500 times of product water absorbent rates are inhaled 80 times of normal saline solution multiplying powers.
Embodiment 2
100 parts of vinylformic acid are placed the 250ml beaker, it is even to add 350 parts of deionized water and stirring, reconcile pH value with potassium hydroxide, make the system pH value about 7.0, add 100 parts of ureas, logical nitrogen is 30 minutes after 10 parts of stirring and dissolving of Secondary ammonium phosphate, add 1.0 parts of persulfuric acid sylvite, add 1.0 parts of S-WATs, after stirring, add linking agent N, 0.5 part of the existing alkene acid amides of N '-methylene-bis, polymerization when temperature is 10 ℃, polymerization time is 1 hour, with dry dry, the pulverizing of product, obtain high water absorbing resin in nutrition type for agricultural use.400 times of product water absorbent rates are inhaled 50 times of physiological saline multiplying powers.
Embodiment 3
With 90 parts of acrylamides, 10 parts of vinylformic acid place the 250ml beaker, add 400 parts of deionized water and stirring dissolvings, reconcile pH value with potassium hydroxide, make the system pH value about 7.0, add 80 parts of ureas, logical nitrogen is 30 minutes after 80 parts of stirring and dissolving of Secondary ammonium phosphate, adds hydrogen peroxidase 10 .5 part, after 0.5 part in xitix stirs, add linking agent N, 0.5 part of N '-methylene-bisacrylamide, polymerization when temperature is 40 ℃, polymerization time is 1 hour, product through granulation, drying, pulverizing, is obtained high water absorbing resin in nutrition type for agricultural use.200 times of product water absorbent rates are inhaled 30 times of physiological saline multiplying powers.
Embodiment 4
With 50 parts of acrylamides, 50 parts of vinylformic acid place the 250ml beaker, add 200 parts of deionized water and stirring dissolvings, reconcile the system pH value with potassium hydroxide, make the system pH value about 7.0, add 50 parts of ureas, logical nitrogen is 30 minutes after 50 parts of stirring and dissolving of Secondary ammonium phosphate, adds 1.0 parts of persulfuric acid sodium salts, 1.0 parts of S-WATs, back adding linking agent N stirs, 0.3 part of N '-methylene-bisacrylamide, polymerization when temperature is 10 ℃, polymerization time is 1 hour, product through granulation, drying, pulverizing, is obtained high water absorbing resin in nutrition type for agricultural use.350 times of product water absorbent rates are inhaled 43 times of physiological saline multiplying powers.
Embodiment 5
With 60 parts of acrylamides, 40 parts of vinylformic acid place the 250ml beaker, add 250 parts of deionized water and stirring dissolvings, reconcile the system pH value with potassium hydroxide, make the system pH value about 7.0, add 50 parts of ureas, logical nitrogen is 30 minutes after 50 parts of stirring and dissolving of Secondary ammonium phosphate, adds 0.2 part of persulfuric acid ammonium salt, 0.1 part of potassium metabisulfite, back adding linking agent N stirs, 0.1 part of N '-methylene-bisacrylamide, polymerization when temperature is 50 ℃, polymerization time is 5 hours, product through granulation, drying, pulverizing, is obtained high water absorbing resin in nutrition type for agricultural use.450 times of product water absorbent rates are inhaled 65 times of physiological saline multiplying powers.
Embodiment 6
With 70 parts of acrylamides, 30 parts of vinylformic acid place the 250ml beaker, add 400 parts of deionized water and stirring dissolvings, reconcile the system pH value with potassium hydroxide, make the system pH value about 7.0, add 20 parts of ureas, 20 parts of Secondary ammonium phosphates, logical nitrogen is 30 minutes after the stirring and dissolving, add 0.5 part of hydrogen peroxide, add after 0.3 part of xitix stirs, add linking agent N, 0.3 part of N '-methylene-bisacrylamide, polymerization when temperature is 80 ℃, polymerization time is 5 hours, and product through granulation, drying, pulverizing, is obtained high water absorbing resin in nutrition type for agricultural use.420 times of product water absorbent rates are inhaled 62 times of physiological saline multiplying powers.
Claims (1)
1, the preparation method of high water absorbing resin in nutrition type for agricultural use, it is characterized in that, step and condition are as follows: raw material weight umber proportioning is acrylamide 0-90 part, vinylformic acid 10-100 part adds the deionized water and stirring dissolving, reconciles pH value with potassium hydroxide, the system pH value of making is 7.0, add urea 10-100 part, Secondary ammonium phosphate 10-100 part, initiator 0.05-1.0 part; Linking agent 0.05-0.5 part; Described initiator adopts redox initiation system, and wherein oxygenant is: persulfuric acid ammonium salt, persulfuric acid sylvite, persulfuric acid sodium salt or hydrogen peroxide; Reductive agent is: potassium metabisulfite salt, Sodium Metabisulfite salt, S-WAT or xitix; Described linking agent is N, N '-methylene-bisacrylamide; Polymerization under logical condition of nitrogen gas, polymerization time 1-5 hour, obtains high water absorbing resin in nutrition type for agricultural use by polymerization temperature 10-80 ℃; The water absorbent rate 200-500 of described high water absorbing resin in nutrition type for agricultural use doubly inhales normal saline solution multiplying power 30-80 doubly.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100636972A CN100519604C (en) | 2006-12-29 | 2006-12-29 | Method for preparing high water absorbing resin in nutrition type for agricultural use |
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| CNB2006100636972A CN100519604C (en) | 2006-12-29 | 2006-12-29 | Method for preparing high water absorbing resin in nutrition type for agricultural use |
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| CN101003600A CN101003600A (en) | 2007-07-25 |
| CN100519604C true CN100519604C (en) | 2009-07-29 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584422B (en) * | 2012-01-04 | 2013-11-27 | 中国水稻研究所 | Seedling raising matrix and seedling raising method for soilless rice plate |
| CN102603420B (en) * | 2012-03-31 | 2014-07-09 | 嵊州市林美生物科技有限公司 | Preparation method of water retention type fertilizer |
| CN102603421B (en) * | 2012-03-31 | 2014-07-02 | 嵊州市林美生物科技有限公司 | Water-retaining fertilizer |
| CN103897112A (en) * | 2012-12-26 | 2014-07-02 | 青岛鑫垚保水高新材料有限公司 | Preparation method of super absorbent polymer (nitrogen) aquasorb-fertilizer |
| CN103910819B (en) * | 2013-01-04 | 2016-01-13 | 青岛鑫垚地农业科技股份有限公司 | A kind of preparation method of hydroscopic high-molecular resin ammonium phosphate water-retention fertilizer |
| CN103787759A (en) * | 2014-01-22 | 2014-05-14 | 太原理工大学 | Preparation method for water retention type humic acid compound fertilizer |
| CN104844754B (en) * | 2014-02-18 | 2017-06-27 | 扶绥县旱来宝农业开发有限公司 | A kind of preparation method of water conservation grain |
| CN104961594B (en) * | 2015-07-27 | 2017-09-12 | 中北大学 | A kind of high-moisture-retention high molecular slow-release nitrogen potash fertilizer and preparation method thereof |
| CN106084132B (en) * | 2016-06-14 | 2019-01-04 | 四川省农业科学院生物技术核技术研究所 | A kind of environmentally friendly, Mobyneb agricultural water-retaining agent preparation method |
| CN110423162A (en) * | 2019-09-03 | 2019-11-08 | 南京工业职业技术学院 | A kind of liquid slow-release compound fertilizer and preparation method thereof |
Citations (2)
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| CN1509606A (en) * | 2002-12-20 | 2004-07-07 | 北京绿色奇点科技发展有限公司 | Multifunctional water-retaining nutritious sustained release agent |
| CN1869084A (en) * | 2006-04-30 | 2006-11-29 | 王树禹 | Superstrong water absorber and its preparation method and selenium-enriched plant antidraught agent using same as raw material |
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2006
- 2006-12-29 CN CNB2006100636972A patent/CN100519604C/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1509606A (en) * | 2002-12-20 | 2004-07-07 | 北京绿色奇点科技发展有限公司 | Multifunctional water-retaining nutritious sustained release agent |
| CN1869084A (en) * | 2006-04-30 | 2006-11-29 | 王树禹 | Superstrong water absorber and its preparation method and selenium-enriched plant antidraught agent using same as raw material |
Non-Patent Citations (2)
| Title |
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| 具有缓释肥功能超强吸水树脂研究. 詹发禄等.兰州大学学报(自然科学版)，第39卷第6期. 2003 * |
| 溶液聚合法制备花土用吸水树脂. 徐鸽等.精细石油化工，第1期. 2002 * |
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| CN101003600A (en) | 2007-07-25 |
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Owner name: CHANGZHOU INSTITUTE OF ENERGY STORAGE MATERIALS + Free format text: FORMER OWNER: CHANGCHUN INST. OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES Effective date: 20130916 |
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Effective date of registration: 20130916 Address after: Changzhou City, Jiangsu province Hehai road 213000 No. 9 Patentee after: Changzhou Institute of Energy Storage Materials & Devices Address before: 130022 Changchun people's street, Jilin, No. 5625 Patentee before: Changchun Institue of Applied Chemistry, Chinese Academy of Sciences |