CN101273718A - Pesticides gel preparations for delaying release of pesticides and method for preparing the same - Google Patents
Pesticides gel preparations for delaying release of pesticides and method for preparing the same Download PDFInfo
- Publication number
- CN101273718A CN101273718A CNA2008100604330A CN200810060433A CN101273718A CN 101273718 A CN101273718 A CN 101273718A CN A2008100604330 A CNA2008100604330 A CN A2008100604330A CN 200810060433 A CN200810060433 A CN 200810060433A CN 101273718 A CN101273718 A CN 101273718A
- Authority
- CN
- China
- Prior art keywords
- pesticides
- agricultural chemicals
- gel preparations
- delays
- release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an agricultural chemical gel preparation for deferring the release of agricultural chemical and a preparation method thereof, and the preparation is made of the following raw materials according to weight percentage: 10 to 60 percent of agricultural chemical, 15 to 78 percent of clay, 10 to 60 percent of carboxymethyl cellulose; 0.1 to 10 percent of moisture. The agricultural chemical gel preparation of the invention has the advantages of deferring the release speed of the active components of the agricultural chemical, reducing the chemical application amount, extending the action time of the agricultural chemical and further relieving the pollution caused by the agricultural chemical.
Description
Technical field
The present invention relates to a kind of pesticides gel preparations that delays agricultural chemicals release and preparation method thereof.
Background technology
Traditional pesticidal preparations is based on regular dosage forms such as missible oil, after being administered to plant or soil, most of pesticide activity component is with the loss of surface runoff or with the soil moisture leaching loss that moves both vertically, enter the face of land or groundwater regime, reduce the agricultural chemicals utilization ratio on the one hand, brought the serious environmental pollution problem on the other hand.
Summary of the invention
The object of the present invention is to provide a kind of pesticides gel preparations that delays agricultural chemicals release and preparation method thereof, the present invention has rate of release, reduction formulation rate, the prolongation action of agricultural chemicals time that delays pesticide activity component, and then alleviates the pollution characteristics that agricultural chemicals causes.
In order to achieve the above object, technical scheme of the present invention is: by interpolation part clay in the carboxymethyl cellulose gel preparation course, and with agricultural chemicals, preparation can delay the pesticides gel preparations that agricultural chemicals discharges.
A kind of pesticides gel preparations that delays agricultural chemicals release, it is formulated by following weight percentages:
Agricultural chemicals (in pure medicine) 10-60%;
Clay 15-78%;
Carboxymethyl cellulose 10-60%;
Moisture 0.1-10%.
The described raw material that delays the pesticides gel preparations of agricultural chemicals release, preferred weight percent is:
Agricultural chemicals (in pure medicine) 20-50%;
Clay 30-60%;
Carboxymethyl cellulose 10-45%;
Moisture 0.1-5%.
Described agricultural chemicals be meant use in the productive life with plant protection or promote all kinds of natural or synthesis of chemicals of plant growing as purpose, adopt in various weed killer herbicides, insecticide, bactericide, the plant growth regulator one or both.
Described clay is meant with silicate to be a class natural minerals of main component, adopts a kind of in bentonite, kaolin, attapulgite, the sepiolite.
Described bentonite is meant with the montmorillonite to be a class lamellar clay of main component, and its exchangeable cations is any combination between in sodium ion, calcium ion, potassium ion, the ammonium ion one or more.
Described carboxymethyl cellulose is a kind of water-soluble cellulose derivative that contains hydroxyl and carboxyl, and the cation on its carboxyl can be sodium ion or potassium ion, and average molecular mass is 10, and 000-800 is between 000.Carboxymethyl cellulose can generate gel by the chemical crosslinking effect, and product can be used as water-loss reducer and plants the clothing agent.The present invention utilizes its gel characteristic, and being combined with each other with clay is used as farm chemical carrier, the preparation pesticides gel preparations.
A kind of preparation method who delays the pesticides gel preparations of agricultural chemicals release, comprise following processing step: clay and pesticide activity component are added in the entry, mix and make the suspension that solid contents is 1-10%, add carboxymethyl cellulose again, stirring is dissolved fully until carboxymethyl cellulose, after mixing with crosslinking agent, react 0-48h down at 10-99 ℃, then at 40-130 ℃ of following dry 0.5-12h, dried product can cut into granular, sheet or bulk by instructions for use and occasion.
Described crosslinking agent is a multivalent metal cation, comprises one or more combinations with arbitrary proportion and form in iron ion or aluminum ions water soluble salt compounds, epoxychloropropane, the glutaraldehyde.
Beneficial effect of the present invention is: at first can delay the rate of release of agricultural chemicals, prolong the action of agricultural chemicals time, release time, from conventional formulation several hours extended to more than 200 hours, had reduced the number of times and the consumption of repetitive administration agricultural chemicals; Secondly the gel preparation of moulding be can obtain by the present invention, can granular, sheet or bulk product be obtained according to producing needs; By delaying the release of agricultural chemicals, reduce loss and the leaching loss amount of agricultural chemicals in soil once more, help alleviating the environmental pollution that agricultural chemicals brings.
Description of drawings
Fig. 1 is the time dependent situation map of release rate of the present invention.
Embodiment
Embodiment 1
Sodium bentonite (being that exchangeable cations is based on sodium ion) 3g, weed killer herbicide Acetochlor 4g are added in the 100mL water, fully stir,, add the 2g sodium carboxymethylcellulose, stir and dissolve fully until sodium carboxymethylcellulose until mixing.Adding concentration is 25% ferric nitrate (crosslinking agent) aqueous solution 1mL, after mixing, at 30 ℃ of following reaction 24h, at 50 ℃ of following dry 12h, each components contents is respectively in the gel preparation that obtains: weed killer herbicide 40%, bentonite 34%, carboxymethyl cellulose 22%, moisture are 4% then.
Pesticides gel preparations with preparation carries out release experiment then, getting wherein, 0.2g puts into 1L water, water sampling analysis Acetochlor quality wherein behind the certain hour of interval, calculate the release rate (promptly being discharged into the percentage that Acetochlor quality in the water accounts for initial quality in the preparation) of Acetochlor under the different time, the results are shown in Table 1.The time dependent situation of release rate is seen Fig. 1.The Acetochlor analytical method can adopt the well-known chromatographic process of analysis of agricultural drugs technical field.
Embodiment 2
(2,4-D) 1.5g adds in the 100mL water, fully stirs, and until mixing, adds the 3g sodium carboxymethylcellulose, stirs and dissolves fully until sodium carboxymethylcellulose with kaolin 1g, weed killer herbicide 2,4 dichlorophenoxyacetic acid.Adding concentration is 20% aluminum sulfate (crosslinking agent) aqueous solution 1mL, after mixing, at 30 ℃ of following reaction 10h, at 105 ℃ of following dry 0.5h, each components contents is respectively in the gel preparation that obtains: weed killer herbicide 24%, kaolin 17%, carboxymethyl cellulose 52%, moisture are 7% then.Carry out release experiment according to the method described in the embodiment 1, obtain under the different time 2, the release rate of 4-D the results are shown in Table 1.
Embodiment 3
Attapulgite 3g, pesticide imidacloprid 2.0g are added in the 100mL water, fully stir,, add the 1.5g sodium carboxymethylcellulose, stir and dissolve fully until sodium carboxymethylcellulose until mixing.Adding concentration is 30% glutaraldehyde (crosslinking agent) aqueous solution 2mL, after mixing, react 24h down at 60 ℃, at 80 ℃ of following dry 1.5h, each components contents is respectively in the gel preparation that obtains: insecticide 28%, attapulgite 45%, carboxymethyl cellulose 22%, moisture are 5% then.Carry out release experiment according to the method described in the embodiment 2, obtain the release rate of Imidacloprid under the different time, the results are shown in Table 1.
Embodiment 4
Sepiolite 3g, plant growth regulator paclobutrazol 3.5g are added in the 100mL water, fully stir,, add the 1g sodium carboxymethylcellulose, stir and dissolve fully until sodium carboxymethylcellulose until mixing.Add concentration and be 30% glutaraldehyde (crosslinking agent) aqueous solution 1mL and 25% ferric nitrate (crosslinking agent) aqueous solution 0.5mL, after mixing, react 48h down at 30 ℃, at 40 ℃ of following dry 2h, each components contents is respectively in the gel preparation that obtains: plant growth regulator 41%, sepiolite 37%, carboxymethyl cellulose 12%, moisture are 10% then.Carry out release experiment according to the method described in the embodiment 2, obtain the release rate of paclobutrazol under the different time, the results are shown in Table 1.
Embodiment 5
With the sodium bentonite among the calcium-base bentonite replacement embodiment 1, other compositions are identical with the preparation method, and the gel preparation that obtains carries out release experiment according to the method described in the embodiment 1, obtains the release rate of weed killer herbicide under the different time, the result is substantially the same manner as Example 1, sees Table 1.
Embodiment 6
With the sodium bentonite among the potassium base bentonite replacement embodiment 1, other compositions are identical with the preparation method, and the gel preparation that obtains carries out release experiment according to the method described in the embodiment 1, obtains the release rate of weed killer herbicide under the different time, the result is substantially the same manner as Example 1, sees Table 1.
Embodiment 7
With the sodium bentonite among the ammonium bentonite replacement embodiment 1, other compositions are identical with the preparation method, and the gel preparation that obtains carries out release experiment according to the method described in the embodiment 1, obtains the release rate of weed killer herbicide under the different time, the result is substantially the same manner as Example 1, sees Table 1.
Embodiment 8
With the carboxymethyl cellulose potassio for the sodium carboxymethylcellulose among the embodiment 1, other compositions are identical with the preparation method, and the gel preparation that obtains carries out release experiment according to the method described in the embodiment 1, obtains the release rate of weed killer herbicide under the different time, the result is substantially the same manner as Example 1, sees Table 1.
Comparative examples 1
After sodium bentonite 3g and weed killer herbicide Acetochlor 3g mixed, do not add the carrier carboxymethyl cellulose, directly carry out release experiment, obtain the release rate of weed killer herbicide under the different time, the results are shown in Table 1 according to the method described in the embodiment 1.
Comparative examples 2
Utilize traditional method that commercially available 50% acetochlor ec preparation 80mg is added in the 1L water, water sampling analysis Acetochlor quality wherein behind the certain hour of interval, the release rate of Acetochlor the results are shown in Table 1 under the calculating different time.
Table 1
| Time, hour | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | Comparative examples 1 | Comparative examples 2 |
| 3 | 12.5％ | 9.8％ | 16.9％ | 15.3％ | 11.9％ | 11.3％ | 12.3％ | 12.5％ | 51.5％ | 92.8％ |
| 24 | 30.2％ | 25.6％ | 41.5％ | 36.8％ | 28.6％ | 30.5％ | 32.1％ | 30.5％ | 90.6％ | 99.6％ |
| 48 | 42.6％ | 38.3％ | 56.6％ | 50.2％ | 42.0％ | 41.2％ | 41.8％ | 40.7％ | 95.2％ | -- |
| 96 | 52.8％ | 50.5％ | 69.0％ | 61.5％ | 53.7％ | 51.8％ | 52.6％ | 51.5％ | -- | -- |
| 144 | 60.7％ | 61.2％ | 81.3％ | 73.3％ | 61.2％ | 60.9％ | 61.5％ | 62.8％ | -- | -- |
| 216 | 71.1％ | 73.4％ | 90.6％ | 81.6％ | 70.8％ | 72.1％ | 71.3％ | 72.3％ | -- | -- |
| 288 | 77.4％ | 80.2％ | 93.4％ | 90.5％ | 78.5％ | 79.0％ | 80.2％ | 80.6％ | -- | -- |
| 360 | 85.0％ | 88.2％ | 95.1％ | 93.6％ | 86.2％ | 87.5％ | 88.6％ | 87.2％ | -- | -- |
Claims (8)
1. one kind delays the pesticides gel preparations that agricultural chemicals discharges, and it is characterized in that it is formulated by following weight percentages:
Agricultural chemicals 10-60%;
Clay 15-78%;
Carboxymethyl cellulose 10-60%;
Moisture 0.1-10%.
2. the pesticides gel preparations that delays agricultural chemicals release as claimed in claim 1 is characterized in that described raw material weight percentage is:
Agricultural chemicals 20-50%;
Clay 30-60%;
Carboxymethyl cellulose 10-45%;
Moisture 0.1-5%.
3. the pesticides gel preparations that delays agricultural chemicals release as claimed in claim 1 is characterized in that: one or both in described pesticide recovery weed killer herbicide, insecticide, bactericide, the plant growth regulator.
4. as claimed in claim 1ly delay the pesticides gel preparations that agricultural chemicals discharges, it is characterized in that: described clay adopts a kind of in bentonite, kaolin, attapulgite, the sepiolite.
5. the pesticides gel preparations that delays agricultural chemicals release as claimed in claim 4, it is characterized in that: described bentonite is meant with the montmorillonite to be a class lamellar clay of main component, and its exchangeable cations is any combination between in sodium ion, calcium ion, potassium ion, the ammonium ion one or more.
6. the pesticides gel preparations that delays agricultural chemicals release as claimed in claim 1, it is characterized in that: described carboxymethyl cellulose is a kind of water-soluble cellulose derivative that contains hydroxyl and carboxyl, cation on its carboxyl can be sodium ion or potassium ion, average molecular mass is 10,000-800 is between 000.
7. preparation method who delays the pesticides gel preparations that agricultural chemicals discharges as claimed in claim 1, it is characterized in that comprising following processing step: clay and pesticide activity component are added in the entry, mix and make the suspension that solid contents is 1-10%, add carboxymethyl cellulose again, stirring is dissolved fully until carboxymethyl cellulose, after mixing with crosslinking agent, react 0-48h down at 10-99 ℃, then at 40-130 ℃ of following dry 0.5-12h, dried product can cut into granular, sheet or bulk by instructions for use and occasion.
8. the preparation method who delays the pesticides gel preparations of agricultural chemicals release as claimed in claim 7, it is characterized in that: described crosslinking agent is a multivalent metal cation, comprises one or more combinations with arbitrary proportion and form in iron ion or aluminum ions water soluble salt compounds, epoxychloropropane, the glutaraldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100604330A CN101273718A (en) | 2008-04-09 | 2008-04-09 | Pesticides gel preparations for delaying release of pesticides and method for preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100604330A CN101273718A (en) | 2008-04-09 | 2008-04-09 | Pesticides gel preparations for delaying release of pesticides and method for preparing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101273718A true CN101273718A (en) | 2008-10-01 |
Family
ID=39993916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100604330A Pending CN101273718A (en) | 2008-04-09 | 2008-04-09 | Pesticides gel preparations for delaying release of pesticides and method for preparing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101273718A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102461498A (en) * | 2010-11-08 | 2012-05-23 | 河南好年景生物发展有限公司 | Preparation method of slow-release pesticide |
| CN101743990B (en) * | 2009-12-31 | 2013-02-13 | 北京农鹰现代农业技术研究院 | Sustained-release granule for controlling storage diseases and insect pests and preparation method thereof |
| CN103109806A (en) * | 2013-02-27 | 2013-05-22 | 苏州朗信医药科技有限公司 | Sustained-release pellet for weed inhibitor and preparation method thereof |
| CN103518712A (en) * | 2013-10-30 | 2014-01-22 | 绍兴文理学院 | Sustained-release chloroacetamide herbicide water dispersible granule and preparation method thereof |
| CN103609557A (en) * | 2013-12-05 | 2014-03-05 | 南京农业大学 | Preparation of water-soluble gel for preventing and treating pear rot |
| CN104082091A (en) * | 2014-06-16 | 2014-10-08 | 郎溪县双明生态农业有限公司 | Method for transplanting dragon juniper in summer |
| CN104082092A (en) * | 2014-06-16 | 2014-10-08 | 郎溪县双明生态农业有限公司 | Transporting method for tallow trees |
| CN104081961A (en) * | 2014-06-16 | 2014-10-08 | 郎溪县双明生态农业有限公司 | Transplanting method for southern magnolias |
| CN108484300A (en) * | 2018-06-26 | 2018-09-04 | 拉多美（宁陵）化肥有限公司 | Ureaformaldehyde Synergistic composite fertilizer production technology |
| CN108727136A (en) * | 2018-06-26 | 2018-11-02 | 拉多美（宁陵）化肥有限公司 | Ureaformaldehyde Synergistic composite fertilizer production technology |
| CN114868739A (en) * | 2022-04-25 | 2022-08-09 | 江苏省农业科学院 | Special auxiliary agent for improving prevention and treatment effects of root irrigation and pesticide application, and preparation method and use method thereof |
| CN117426377A (en) * | 2022-07-12 | 2024-01-23 | 轩凯生物科技(山东)有限公司 | Preparation method of pesticide loaded gel with environment response controlled release |
-
2008
- 2008-04-09 CN CNA2008100604330A patent/CN101273718A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743990B (en) * | 2009-12-31 | 2013-02-13 | 北京农鹰现代农业技术研究院 | Sustained-release granule for controlling storage diseases and insect pests and preparation method thereof |
| CN102461498A (en) * | 2010-11-08 | 2012-05-23 | 河南好年景生物发展有限公司 | Preparation method of slow-release pesticide |
| CN102461498B (en) * | 2010-11-08 | 2013-05-08 | 河南好年景生物发展有限公司 | Preparation method of slow-release pesticide |
| CN103109806A (en) * | 2013-02-27 | 2013-05-22 | 苏州朗信医药科技有限公司 | Sustained-release pellet for weed inhibitor and preparation method thereof |
| CN103518712A (en) * | 2013-10-30 | 2014-01-22 | 绍兴文理学院 | Sustained-release chloroacetamide herbicide water dispersible granule and preparation method thereof |
| CN103609557A (en) * | 2013-12-05 | 2014-03-05 | 南京农业大学 | Preparation of water-soluble gel for preventing and treating pear rot |
| CN104082091A (en) * | 2014-06-16 | 2014-10-08 | 郎溪县双明生态农业有限公司 | Method for transplanting dragon juniper in summer |
| CN104082092A (en) * | 2014-06-16 | 2014-10-08 | 郎溪县双明生态农业有限公司 | Transporting method for tallow trees |
| CN104081961A (en) * | 2014-06-16 | 2014-10-08 | 郎溪县双明生态农业有限公司 | Transplanting method for southern magnolias |
| CN108484300A (en) * | 2018-06-26 | 2018-09-04 | 拉多美（宁陵）化肥有限公司 | Ureaformaldehyde Synergistic composite fertilizer production technology |
| CN108727136A (en) * | 2018-06-26 | 2018-11-02 | 拉多美（宁陵）化肥有限公司 | Ureaformaldehyde Synergistic composite fertilizer production technology |
| CN114868739A (en) * | 2022-04-25 | 2022-08-09 | 江苏省农业科学院 | Special auxiliary agent for improving prevention and treatment effects of root irrigation and pesticide application, and preparation method and use method thereof |
| CN114868739B (en) * | 2022-04-25 | 2023-08-25 | 江苏省农业科学院 | Special auxiliary agent for improving root irrigation and pesticide application control effects, and preparation method and use method thereof |
| CN117426377A (en) * | 2022-07-12 | 2024-01-23 | 轩凯生物科技(山东)有限公司 | Preparation method of pesticide loaded gel with environment response controlled release |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101273718A (en) | Pesticides gel preparations for delaying release of pesticides and method for preparing the same | |
| CN107892634B (en) | Liquid package fertilizer special for cotton for improving soil, preparation method and application method | |
| CN101233861A (en) | High active biological drought resisting seed coating agent and preparation and using method thereof | |
| CN103626593B (en) | Humic acid type organic-inorganic soil conditioner prepared from wastes of sugar mills and alcohol plants | |
| CN101731277B (en) | Method for preparing plant transpiration suppression material and using method thereof | |
| CN107129368B (en) | Fertilizer synergist and preparation method and application thereof | |
| CN101278671A (en) | Plural gel preparation for delaying release of herbicide and method of preparing the same | |
| CN107056484B (en) | Fertilizer synergist containing yield increasing amine and preparation method and application thereof | |
| CN111066802A (en) | Hymexazol and metalaxyl-M composite granules and preparation method thereof | |
| CN108546215A (en) | A kind of organic tune acid synergy drip irrigation fertilizer and preparation method thereof | |
| CN111303901A (en) | Soil conditioner and preparation method thereof | |
| EP3440035A1 (en) | Eco-friendly surface-treatment composition for the treatment of solid fertilizers to prevent agglutination and pulverization, to retard water uptake and at the same time to enhance the availability of nutrients | |
| CN103833472A (en) | Special liquid pesticide fertilizer for increasing yield and killing pests of corn and preparation method thereof | |
| CN109111930A (en) | A kind of sustained release composite passivant for administering Cadmium Pollution in Soils | |
| CN113105286A (en) | Preparation method of coated fertilizer with longer nutrition effect and coated fertilizer | |
| CN105638649A (en) | Spring striking root herbicide-containing fertilizer for wheat as well as preparation method and application thereof | |
| CN110981594A (en) | Instant trace element water fertilizer for improving organic matter content of soil and preparation method thereof | |
| CN106187593A (en) | Slight alkaline land improvement dedicated fertilizer and preparation method thereof | |
| CN109180370A (en) | A kind of instant water-soluble fertilizer and preparation method thereof | |
| CN111153734A (en) | Alkaline fertilizer with chelating slow-release synergism and soil improvement effects and preparation method thereof | |
| KR100247942B1 (en) | Liquid fertilization composition containing chitin | |
| CN111662128A (en) | Drought-resistant slow-release saline-alkali soil conditioner and preparation method thereof | |
| CN110317118B (en) | Application of 2, 4-dichlorphenoxyacetic acid butyl ester in improving utilization rate of nitrogen fertilizer and/or reducing loss of nitrogen element | |
| CN103159573A (en) | Potassium-fulvate-type sustained-control-release long-lasting urea ammonia | |
| CN108329151B (en) | Fertilizer synergist, preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081001 |