CN102273447A - Abamectin-blue green algae ultraviolet-resistant sustained-release microcapsule pesticide and preparation method thereof - Google Patents
Abamectin-blue green algae ultraviolet-resistant sustained-release microcapsule pesticide and preparation method thereof Download PDFInfo
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- CN102273447A CN102273447A CN2011101755664A CN201110175566A CN102273447A CN 102273447 A CN102273447 A CN 102273447A CN 2011101755664 A CN2011101755664 A CN 2011101755664A CN 201110175566 A CN201110175566 A CN 201110175566A CN 102273447 A CN102273447 A CN 102273447A
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Abstract
The invention discloses an abamectin-blue green algae ultraviolet-resistant sustained-release microcapsule pesticide and a preparation method thereof. The abamectin-blue green algae ultraviolet-resistant sustained-release microcapsule pesticide comprises the following ingredients in part by weight: 0.5 to 50 parts of abamectin, 5 to 50 parts of blue green algae powder, 1 to 20 parts of surfactant and 0.5 to 20 parts of easily degradable macromolecule. The blue green algae serving as a pesticide carrier is used for adsorbing the abamectin, delays decomposition of the abamectin caused by ultraviolet irradiation by the natural properties of the blue green algae, and can serve as organic fertilizer to increase yield of crops, so waste utilization of the pollutants is realized; the degradable macromolecules serve as a coating agent, so environmental protection is contributed; and the abamectin can be released in a controlled way by a sustained-release technology, so toxicity of the abamectin on people and livestock is reduced.
Description
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Technical field
The present invention relates to a kind of abamectin insecticide, specifically a kind of Avermectin-blue-green algae prevents ultraviolet slow-release microcapsule insecticide, and the preparation method of this abamectin insecticide.Belong to the Avermectin pesticide field.
Background technology
Avermectin, English name Avermectins, its structural formula is as follows:
Its molecular formula is B
1bC
47H
70O
14, B
1aC
48H
72O
14Molecular weight is B
1b, 858.1; B
1a, 872.1; Fusing point: 150-155 ℃; Vapour pressure (20 ℃):＜2 * 10
-4MPa; Stability: good stability in the aqueous solution (25 ℃) of pH value 5-9; To the strong acid and strong base sensitivity; At first can change 8 under UV-irradiation, the 9-Z isomer is degraded to unknown product then.
Avermectin is a new antibiotic, has novel structure, the dual-purpose characteristics of farming animals.Avermectin has very high biologically active to the insect of multiple kinds of crops.Can be used as agricultural chemicals after making preparation, veterinary drug, have wide spectrum, efficient, noresidue, characteristic such as be difficult for developing immunity to drugs can be prevented and treated insects such as harmful mite on the plants such as paddy rice, fruit tree, vegetables, flowers, cotton, tobacco and liriomyza bryoniae, diamond-back moth, cabbage caterpillar, cotton bollworm, pear sucker.Avermectin is used to kill multiple parasites such as tick, mite, lice, flea, fly, maggot outside the animal bodies such as pig, ox, sheep, horse, rabbit, chicken in livestock breeding.The usage amount of Avermectin is increasing in recent years, and annual value of production is to surpass 1,400,000,000 U.S. dollars.Surpass every year 200,000,000 mu times applying of China's paddy field.
It is fast that the fatal shortcoming of Avermectin is that ultraviolet lighting decomposes, the peasant will be repeatedly or excessive using just can effectively control insect pest, seriously lowered the insecticide efficiency of Avermectin.Utilize blue-green algae can delay this shortcoming that characteristic that ultraviolet lighting decomposes solves Avermectin among the present invention as farm chemical carrier.The cell wall of blue-green algae forms network structure by cellulose, itself is biological adsorption agent absorption Avermectin, and absorbs ultraviolet ray, alleviates Avermectin decomposition in the sun.The resource of blue-green algae is very abundant, and very strong resistance is arranged, and is widely distributed, and all there is the existence of blue-green algae freshwater lake and ocean.But blue-green algae is broken out blue-green alga bloom under certain condition, severe contamination lake water quality, and harm ecotope and human health must be administered and be utilized.Only TAI HU AREA was just handled nearly 400,000 tons of blue-green algae in 1 year, and sufficient blue-green algae resource is provided, and had guaranteed to produce needs.
Avermectin also is high malicious to mammal, adopts slow release method, and Avermectin is slowly discharged, and gets final product kill pests, can make toxicity be reduced to the scope to the person poultry safety again.We adopt easy degraded macromolecular as film forming agent, and Avermectin is prepared into slow-release microcapsule, so both can slowly discharge, and do not influence the dispersiveness after its making becomes the formulations of pesticide again, are convenient to spray.Environmentally safe after easily degraded macromolecular is degraded.
We inquire about by patent, still find no to utilize blue-green algae to adsorb Avermectin as carrier, and rely on the Avermectin uvioresistant slow-release microcapsule insecticide of the anti-ultraviolet of self natural performance.
Comprehensive above-mentioned existing technology and resource background, we utilize the environmental contaminants blue-green algae to improve Avermectin in the fast shortcoming of ultraviolet lighting decomposition as farm chemical carrier, application times and amount of application have been reduced, improve insecticide efficiency, the reduction Avermectin is invented the anti-ultraviolet slow-release microcapsule insecticide of a kind of Avermectin-blue-green algae to the person poultry toxicity and the preparation method is very necessary.
Summary of the invention
The objective of the invention is in order to provide a kind of Avermectin-blue-green algae to prevent ultraviolet slow-release microcapsule insecticide.
Another object of the present invention provides this method for producing insecticide.
Purpose of the present invention can be achieved through the following technical solutions.
Avermectin-blue-green algae prevents ultraviolet slow-release microcapsule insecticide, and by weight, its component and content are:
Avermectin 0.5-50 part,
Blue algae powder 5-50 part,
Surfactant 1-20 part,
Easy degraded macromolecular 0.5-20 part.
Described blue-green algae is a kind of blue-green algae in the Cyanophyta.
Described easy degraded macromolecular compound is methyl or carboxymethyl cellulose, polyvinyl acetate, polyvinylpyrrolidone, polyethylene glycol, hydroxyethylcellulose, polyvinyl alcohol, one or more mixing in soluble starch and the corn starch.
Described surfactant is one or both mixing among carboxylate copolymer, EO/PO polyethers, formaldehyde condensation products, lignosulfonates, Hensel T-2700 advanced in years, Hensel T-2500, the inferior T36 in sieve ground advanced in years and the agricultural D08 of wide source benefit etc.
Above-mentioned Avermectin-blue-green algae prevents ultraviolet slow-release microcapsule method for producing insecticide, comprises the steps:
1) in reactor Avermectin 0.5-50 part is dissolved in organic solvent, and adds dried blue algae powder, vibration was soaked 20-30 hour in the gas bath oscillator under 25-30 ℃ of constant temperature;
2) easy degraded macromolecular 0.5-20 part is added in the above-mentioned reactor, dispersed with stirring is even;
3) surfactant 1-20 part is poured in the distilled water, be stirred to dissolving fully;
4) with step 2) mix with the step 3) product, send into high speed shear mulser 8000-12000rpm speed and stirred 10-20 minute; Temperature 40-80 ℃ steams all organic solvents, solidifies encystation, filters water outlet, promptly gets the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae.
Described organic solvent is a toluene, acetone, isopropyl alcohol, chloroform, ethanol, methyl alcohol, propyl alcohol, a kind of in n-butanol and the cyclohexane.
The present invention utilizes blue-green algae to adsorb Avermectin for farm chemical carrier, and relies on himself natural performance to delay Avermectin because of the decomposition that ultraviolet lighting produces, and can be used as organic fertilizer application volume increase crop again, realizes the twice laid of pollutant; Secondly, utilize degradable macromolecule to be seed coating medicine, be beneficial to environmental protection.Once more, utilize slow release method to make Avermectin reach controllable release, reduce Avermectin the person poultry toxicity.
Description of drawings
Fig. 1 decomposes contrast experiment figure for UV-irradiation;
Fig. 2 is the release dynamics figure of sustained release agent;
Embodiment
Further set forth technical essential of the present invention below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1:
Avermectin-blue-green algae prevents ultraviolet slow-release microcapsule insecticide, comprises the steps:
1) in reactor with in 100 parts of organic solvents of 4 parts of Avermectin, be stirred to fully dissolving.Add 20 parts of dried blue algae powders afterwards, vibration was soaked after 24 hours in 25 ℃ of following gas bath oscillators of constant temperature;
2) 2 parts of easy degraded macromoleculars are added in the above-mentioned reactor, dispersed with stirring is even;
3) 3 parts surfactant is poured in 100 parts the redistilled water, be stirred to dissolving fully;
4) with step 2) product is with after the step 3) product mixes, stirred 15 minutes with the speed of high-shear emulsion machine earlier with 12000rpm, be to steam organic solvent under 40 ℃ in temperature, solidify encystation, filter water outlet, after the drying, promptly get the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae.
Embodiment 2:
The preparation technology of the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae comprises the steps:
1) in reactor with 100 parts of organic solvents of 5 parts of Avermectin, be stirred to fully dissolving.Add 25 parts of dried blue algae powders afterwards, vibrate immersion down after 24 hours 30 ℃ of constant temperature;
2) 3 parts of easy degraded macromoleculars are added in the above-mentioned reactor, dispersed with stirring is even;
3) 3 parts surfactant is poured in 150 parts the redistilled water, be stirred to dissolving fully;
4) with step 2) product is with after the step 3) product mixes, stirred 15 minutes with the speed of high-shear emulsion machine earlier with 10000rpm, be to steam organic solvent under 50 ℃ in temperature, solidify encystation, filter water outlet, after the drying, promptly get the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae.
Embodiment 3:
The preparation technology of the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae comprises the steps:
1) in reactor, 2.5 parts of Avermectin is separated in 35 parts of organic solvents are housed, be stirred to dissolving fully.Add 15 parts of dried blue algae powders afterwards, 25 ℃ vibrated immersion down after 20 hours in constant temperature gas bath oscillator;
2) 1.5 parts of easy degraded macromoleculars are added in the above-mentioned reactor, are stirred to dissolving fully;
3) 2 parts surfactant is poured in 100 parts the redistilled water, be stirred to dissolving fully;
4) with step 2) product is with after the step 3) product mixes, stirred 15 minutes with the speed of high-shear emulsion machine earlier with 10000rpm, be to steam organic solvent under 55 ℃ in temperature, solidify encystation, filter water outlet, after the drying, promptly get the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae.
Embodiment 4:
The preparation technology of the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae comprises the steps:
1) in reactor, 3 parts of Avermectin are dissolved in and are equipped with in 25 parts of organic solvents, be stirred to dissolving fully.Add 20 parts of dried blue algae powders afterwards, 30 ℃ vibrated immersion down after 24 hours in constant temperature gas bath oscillator;
2) 1.5 parts of easy degraded macromoleculars are added in the above-mentioned reactor, dispersed with stirring is even;
3) 2 parts surfactant is poured in 100 parts the redistilled water, be stirred to dissolving fully;
4) with step 2) product is with after the step 3) product mixes, stirred 15 minutes with the speed of high-shear emulsion machine earlier with 11000rpm, be to steam organic solvent under 45 ℃ in temperature, solidify encystation, filter water outlet, after the drying, promptly get the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae.
The preparation technology of the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae comprises the steps:
1) 1 part of Avermectin is dissolved in the reactor that 150 parts of organic solvents are housed, is stirred to dissolving fully.Add 10 parts of dried blue algae powders afterwards, 30 ℃ vibrated immersion down after 30 hours in constant temperature gas bath oscillator;
2) 1 part of easy degraded macromolecular is added in the above-mentioned reactor, dispersed with stirring is even;
3) 1 part surfactant is poured in 50 parts the redistilled water, be stirred to dissolving fully;
4) with step 2) product is with after the step 3) product mixes, stirred 15 minutes with the speed of high-shear emulsion machine earlier with 10000rpm, be to steam organic solvent under 45 ℃ in temperature, solidify encystation, filter water outlet, after the drying, promptly get the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae.
?
Blue-green algae prevents that the Avermectin ultraviolet light from decomposing check analysis
Through 4 hours UV-irradiation, the residual percentage of Avermectin that no algae powder covers was 39%, was that 61%(sees Fig. 1 and the residual percentage of the Avermectin that the algae powder covers is arranged).Have the residual percentage of the Avermectin that the algae powder covers to cover 1.56 times, improved 56.4% for no algae powder.Illustrate that blue-green algae can significantly slow down the decomposition of ultraviolet light to Avermectin.
The release dynamics of sustained release agent
1%, the sustained release agent of 5%, 10% dressing discharge 5 days respectively, 13 days and 20 days, accumulative total release rate be respectively release rate 69.8%, 59.7% and 51.8% (see figure 2).
The test data of the performance of desinsection
Carry out according to " agricultural chemicals field experiment criterion () " that medicine inspecting institute of the Ministry of Agriculture issues, formulation rate is 15gA.I/hm
2, every sub-district area is 50m, and each is handled and repeats 4 times, establishes the clear water contrast, and each is handled randomized arrangement and distributes, every sub-district fixed point investigation 20 strain wild cabbages.Investigation insect population radix before the dispenser, behind the medicine 1,3,7d investigates residual borer population alive, calculates insect population lethality, control efficiency, after 30 days by claiming fresh weight to look into the weightening finish situation of wild cabbage.Remarkable result is arranged.
Claims (6)
1. Avermectin-blue-green algae prevents ultraviolet slow-release microcapsule insecticide, and it is characterized in that: by weight, its component and content are:
Avermectin 0.5-50 part,
Blue algae powder 5-50 part,
Surfactant 1-20 part,
Easy degraded macromolecular 0.5-20 part.
2. Avermectin-blue-green algae according to claim 1 prevents ultraviolet slow-release microcapsule insecticide, it is characterized in that: described blue-green algae is a kind of blue-green algae in the Cyanophyta.
3. Avermectin-blue-green algae according to claim 1 prevents ultraviolet slow-release microcapsule insecticide, it is characterized in that: described easy degraded macromolecular compound is methyl or carboxymethyl cellulose, polyvinyl acetate, polyvinylpyrrolidone, polyethylene glycol, hydroxyethylcellulose, polyvinyl alcohol, one or more mixing in soluble starch and the corn starch.
4. Avermectin-blue-green algae according to claim 1 prevents ultraviolet slow-release microcapsule insecticide, it is characterized in that: described surfactant is one or both mixing among carboxylate copolymer, EO/PO polyethers, formaldehyde condensation products, lignosulfonates, Hensel T-2700 advanced in years, Hensel T-2500, the inferior T36 in sieve ground advanced in years and the agricultural D08 of wide source benefit etc.
5. the anti-ultraviolet slow-release microcapsule method for producing insecticide of the described Avermectin-blue-green algae of claim 1 is characterized in that: comprise the steps:
1) in reactor Avermectin 0.5-50 part is dissolved in organic solvent, and adds dried blue algae powder, vibration was soaked 20-30 hour in the gas bath oscillator under 25-30 ℃ of constant temperature;
2) easy degraded macromolecular 0.5-20 part is added in the above-mentioned reactor, dispersed with stirring is even;
3) surfactant 1-20 part is poured in the distilled water, be stirred to dissolving fully;
4) with step 2) mix with the step 3) product, send into high speed shear mulser 8000-12000rpm speed and stirred 10-20 minute; Temperature 40-80 ℃ steams all organic solvents, solidifies encystation, filters water outlet, promptly gets the anti-ultraviolet slow-release microcapsule insecticide of Avermectin-blue-green algae.
6. preparation method according to claim 5 is characterized in that: described organic solvent is a toluene, acetone, isopropyl alcohol, chloroform, ethanol, methyl alcohol, propyl alcohol, a kind of in n-butanol and the cyclohexane.
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| CN201110175566.4A CN102273447B (en) | 2011-06-27 | 2011-06-27 | Abamectin-blue green algae ultraviolet-resistant sustained-release microcapsule pesticide and preparation method thereof |
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|---|---|---|---|
| CN201110175566.4A CN102273447B (en) | 2011-06-27 | 2011-06-27 | Abamectin-blue green algae ultraviolet-resistant sustained-release microcapsule pesticide and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103563893A (en) * | 2013-10-14 | 2014-02-12 | 广东中迅农科股份有限公司 | Slow release agent for pesticide granules |
| CN103875657A (en) * | 2014-04-03 | 2014-06-25 | 广州市微生物研究所 | Uvioresistant farm-oriented water dispersible granule containing natamycin and preparation method of water dispersible granule |
| CN106614658A (en) * | 2016-12-23 | 2017-05-10 | 芜湖福民生物药业股份有限公司 | Avermectin pesticide slow release agent and preparation method thereof |
| CN106614659A (en) * | 2016-12-23 | 2017-05-10 | 芜湖福民生物药业股份有限公司 | Abamectin pesticide slow-release agent and preparation method thereof |
| US10959436B2 (en) * | 2017-07-15 | 2021-03-30 | Arun Vitthal SAWANT | Crop fortification, nutrition and crop protection composition |
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| CN1899038A (en) * | 2005-07-20 | 2007-01-24 | 吴学民 | Method for producing pesticide micro capsule |
| US20080306026A1 (en) * | 2005-02-24 | 2008-12-11 | Ian Malcolm Shirley | Capsule Formulation |
| CN101830760A (en) * | 2010-05-11 | 2010-09-15 | 上海师范大学 | Emamectin benzoate-algae slow-release type microcapsule pesticide and preparation method thereof |
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Patent Citations (4)
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|---|---|---|---|---|
| CN1346260A (en) * | 1998-10-23 | 2002-04-24 | 诺华堡有限公司(Nouvabinc) | Solar radiation protection composition |
| US20080306026A1 (en) * | 2005-02-24 | 2008-12-11 | Ian Malcolm Shirley | Capsule Formulation |
| CN1899038A (en) * | 2005-07-20 | 2007-01-24 | 吴学民 | Method for producing pesticide micro capsule |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103563893A (en) * | 2013-10-14 | 2014-02-12 | 广东中迅农科股份有限公司 | Slow release agent for pesticide granules |
| CN103875657A (en) * | 2014-04-03 | 2014-06-25 | 广州市微生物研究所 | Uvioresistant farm-oriented water dispersible granule containing natamycin and preparation method of water dispersible granule |
| CN103875657B (en) * | 2014-04-03 | 2016-01-20 | 广州市微生物研究所 | A kind of uvioresistant agricultural water dispersible granule containing natamycin and preparation method thereof |
| CN106614658A (en) * | 2016-12-23 | 2017-05-10 | 芜湖福民生物药业股份有限公司 | Avermectin pesticide slow release agent and preparation method thereof |
| CN106614659A (en) * | 2016-12-23 | 2017-05-10 | 芜湖福民生物药业股份有限公司 | Abamectin pesticide slow-release agent and preparation method thereof |
| US10959436B2 (en) * | 2017-07-15 | 2021-03-30 | Arun Vitthal SAWANT | Crop fortification, nutrition and crop protection composition |
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| CN102273447B (en) | 2014-10-15 |
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