CN102362589A - Imidacloprid water dispersible granules and preparation method thereof - Google Patents
Imidacloprid water dispersible granules and preparation method thereof Download PDFInfo
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- CN102362589A CN102362589A CN2011103735400A CN201110373540A CN102362589A CN 102362589 A CN102362589 A CN 102362589A CN 2011103735400 A CN2011103735400 A CN 2011103735400A CN 201110373540 A CN201110373540 A CN 201110373540A CN 102362589 A CN102362589 A CN 102362589A
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- water dispersible
- imidacloprid
- dispersible granule
- imidacloprid water
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Abstract
The invention discloses imidacloprid water dispersible granules and a preparation method thereof. The imidacloprid water dispersible granules consist of the following components in percentage by weight: 20 to 80 percent of raw medicine imidacloprid, 1 to 10 percent of wetting agent, 1 to 10 percent of dispersing agent, 1 to 5 percent of disintegrating agent, 1 to 5 percent of binding agent and the balance of carrier. The imidacloprid water dispersible granules have the advantages of high dispersibility, high suspension percentage, high stability, convenience for use and the like. The preparation method is simple. Industrialized popularization is facilitated and remarkable economic and social benefits are achieved.
Description
Technical field
The invention belongs to the agricultural chemicals preparation field, be specifically related to a kind of imidacloprid water dispersible granule and preparation method thereof.
Background technology
Along with the use of chemical pesticide, the global environment and the ecological balance have all been suffered serious destruction.Residual and the environmental pollution of agricultural chemicals is very serious in China, in order to address this problem, should strengthen high-efficiency low-toxicity on the one hand, and the development of the novel pesticide of easily biological-degradable and environmentally compatible will be studied on the other hand, exploitation and use environment friendly agricultural preparation.For a long time, emulsifiable concentrates for agricultural chemicals is the important formulation of pesticidal preparations always, and missible oil contains a large amount of organic solvents, and to producing, storing and use etc. are strict, otherwise takes place easily to poison or produce poisoning, and a large amount of organic solvents causes environmental pollution easily.These problems have caused people's extensive concern.
In general, and water dispersible granules (Water dispersible granule, WG) by active component, wetting agent, dispersant, disintegrant, stabilizing agent, compositions such as binding agent and carrier.It is a kind of dryness, can free-flow, have certain fineness, evenly particle form can be in water the novel green granula of disintegration and suspension fast.
Imidacloprid, molecular formula are C
9H
10ClN
5O
2, molecular weight 255.6633, commodity are called amidine aphid amine, English name: imidacloprid; Chemical name: 1-(6-chloropyridine-3-pyridylmethyl)-N-Nitroimidazoline-2-base amine is that it has efficiently, interior suction by a kind of good agricultural insecticide new varieties of Bayer A.G and the common exploitation of Japanese particular company; The characteristic that the longevity of residure is long can extensively be prevented and treated cotton, vegetables, fruit tree; Paddy rice, the insect on the crops such as wheat, like aphid, plant hopper; Leafhopper, preventive effects such as weevil are excellent, are mainly used in the control sucking pest.It is a kind of organic heterocyclic nicotinoids low toxicity super-high-efficient insecticide, has the characteristic of wide spectrum, efficient, low toxicity, low-residual.In recent years, along with the continuous expansion of usable floor area, its sales volume also causes its price to decline to a great extent increasing year by year, because it has excellent pesticidal effect and cheap use cost, Imidacloprid generally is familiar with for the user gradually now and is accepted.Medicament is sprayed on the pest body, can cause its nervous centralis normal conduction to be obstructed, and then paralysis is dead.Pharmacy application promptly has higher preventive effect after 1 day.Drug effect and temperature have much relations, in general are proportionate, and temperature is high more, and drug effect is good more.Its chemical structural formula is as follows:
Summary of the invention
The object of the present invention is to provide a kind of imidacloprid water dispersible granule and preparation method thereof; This formulation has good dispersion, suspensibility height, good stability, advantage such as easy to use, and the preparation method is simple; Help industrialization promotion, possess remarkable economical and social benefit.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of imidacloprid water dispersible granule is made up of former medicine, wetting agent, dispersant, disintegrant, binding agent and carrier; The percentage by weight of each component is: Imidacloprid 20-80%, and wetting agent 1-10%, dispersant 1-10%, disintegrant 1-5%, binding agent 1-5%, surplus is a carrier.
Described wetting agent is an alkylnaphthalene sulfonate.Described dispersant is carboxylate or alkyl naphthalene sulfonic acid condensation polymer salt.Described disintegrant is ammonium sulfate or urea.Described binding agent is a polyethylene glycol.Described carrier is white carbon and kaolinic mixture, and wherein white carbon and kaolinic mass ratio are 1:4.
Its preparation method is to take by weighing the former medicine of Imidacloprid, wetting agent, dispersant, disintegrant, binding agent and carrier by proportioning, and mixing granulation promptly gets described imidacloprid water dispersible granule.
Appearance milky white of the present invention, spherical shape, ability free-flow; Active constituent content is 71.15%; Moisture is lower than 1.80%; Wetting time is 26 ± 2s; Disintegration time is 38.67 ± 3.05s; Suspensibility is 90.45 ± 0.42%; Heat storage stability is qualified.
Remarkable advantage of the present invention is:
1) this formulation has good dispersion, suspensibility height, good stability, advantage such as easy to use, and the preparation method is simple, helps industrialization promotion, possesses remarkable economical and social benefit.
2) dispersant selected for use of the present invention is that carboxylate or alkyl naphthalene sulfonic acid condensation polymer salt have solved the low excessively problems of dispersant suspensibility such as using lignin, dodecyl benzene sulfonate and lauryl sulfate.
Embodiment
Various chemical raw material used in the present invention is the general chemistry article, is buied by market.
Take by weighing the former medicine 20-80 gram of Imidacloprid, alkylnaphthalene sulfonate 1-10 gram, carboxylate or alkyl naphthalene sulfonic acid condensation polymer salt 1-10 gram, ammonium sulfate or urea 1-5 gram, polyethylene glycol 1-5 gram, white carbon and kaolin and supply 100 grams; Mixing, pulverize with cracker; Add suitable quantity of water and cause particle, can obtain 20-80% imidacloprid water dispersible granule of the present invention in 1 hour in 54 ℃ of following freeze-day with constant temperature.
Embodiment 1
Get former medicine 72.9 grams of Imidacloprid, alkylnaphthalene sulfonate 2.5 grams, polycarboxylate 5 grams, ammonium sulfate 3 grams, polyethylene glycol 2 grams, white carbon 2.92 grams, kaolin 11.68 grams; Mixing, pulverize with cracker; Add suitable quantity of water and cause particle, can obtain 70% imidacloprid water dispersible granule of the present invention in one hour in 54 ℃ of following freeze-day with constant temperature.
Embodiment 2
Get former medicine 80 grams of Imidacloprid, alkylnaphthalene sulfonate 2.4 grams, alkyl naphthalene sulfonic acid condensation polymer salt 1 gram, urea 1 gram, polyethylene glycol 1 gram, white carbon 2.92 grams, kaolin 11.68 grams; Mixing, pulverize with cracker; Add suitable quantity of water and cause particle, can obtain 80% imidacloprid water dispersible granule of the present invention in one hour in 54 ℃ of following freeze-day with constant temperature.
Embodiment 3
Get former medicine 20.4 grams of Imidacloprid, alkylnaphthalene sulfonate 10 grams, polycarboxylate 10 grams, ammonium sulfate 5 grams, polyethylene glycol 5 grams, white carbon 9.92 grams, kaolin 39.68 grams; Mixing, pulverize with cracker; Add suitable quantity of water and cause particle, can obtain 20% imidacloprid water dispersible granule of the present invention in one hour in 54 ℃ of following freeze-day with constant temperature.
Embodiment 4
The variety classes dispersant is to the influence such as the table 1 of the suspensibility of imidacloprid water dispersible granule.The dispersant that the present invention selects for use is that carboxylate or alkyl naphthalene sulfonic acid condensation polymer salt have solved the low excessively problems of dispersant suspensibility such as using lignin, dodecyl benzene sulfonate and lauryl sulfate.
Table 1 variety classes dispersant is to the suspensibility influence of imidacloprid water dispersible granule
Embodiment 5
Imidacloprid water dispersible granule of the present invention is experimental subjects with the aphid, and indoor Toxicological testing result sees table 2.
Table 2 Imidacloprid is to the indoor virulence (24h) of aphid
Embodiment 6
Imidacloprid water dispersible granule of the present invention is that experimental subjects (54 ± 1) ℃ two weeks heat storage indoor Toxicological testing result in back sees table 3 with the aphid.
Table 3 heat storage back Imidacloprid is to the indoor virulence (24h) of aphid
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (7)
1. imidacloprid water dispersible granule, it is characterized in that: described imidacloprid water dispersible granule is made up of former medicine, wetting agent, dispersant, disintegrant, binding agent and carrier; The percentage by weight of each component is: Imidacloprid 20-80%, and wetting agent 1-10%, dispersant 1-10%, disintegrant 1-5%, binding agent 1-5%, surplus is a carrier.
2. imidacloprid water dispersible granule according to claim 1 is characterized in that: described wetting agent is an alkylnaphthalene sulfonate.
3. imidacloprid water dispersible granule according to claim 1 is characterized in that: described dispersant is carboxylate or alkyl naphthalene sulfonic acid condensation polymer salt.
4. imidacloprid water dispersible granule according to claim 1 is characterized in that: described disintegrant is ammonium sulfate or urea.
5. imidacloprid water dispersible granule according to claim 1 is characterized in that: described binding agent is a polyethylene glycol.
6. imidacloprid water dispersible granule according to claim 1 is characterized in that: described carrier is white carbon and kaolinic mixture, and wherein white carbon and kaolinic mass ratio are 1:4.
7. the preparation method of an imidacloprid water dispersible granule as claimed in claim 1, it is characterized in that: take by weighing the former medicine of Imidacloprid, wetting agent, dispersant, disintegrant, binding agent and carrier by proportioning, mixing granulation promptly gets described imidacloprid water dispersible granule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103735400A CN102362589A (en) | 2011-11-22 | 2011-11-22 | Imidacloprid water dispersible granules and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103735400A CN102362589A (en) | 2011-11-22 | 2011-11-22 | Imidacloprid water dispersible granules and preparation method thereof |
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| CN102362589A true CN102362589A (en) | 2012-02-29 |
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| CN2011103735400A Pending CN102362589A (en) | 2011-11-22 | 2011-11-22 | Imidacloprid water dispersible granules and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444708A (en) * | 2013-08-01 | 2013-12-18 | 广东中迅农科股份有限公司 | Water dispersible granule containing chitosan |
| CN106259412A (en) * | 2016-08-16 | 2017-01-04 | 仇颖莹 | A kind of preparation method of imidacloprid water dispersible granule |
| CN108207990A (en) * | 2018-02-27 | 2018-06-29 | 镇江先锋植保科技有限公司 | A kind of imidacloprid water dispersible granule of high weight suspensibility |
| CN113068709A (en) * | 2021-04-06 | 2021-07-06 | 北京优利拓普农作物科技有限公司 | Full-soluble granules and application thereof |
| CN113475520A (en) * | 2021-07-13 | 2021-10-08 | 苏州市江枫白蚁防治有限公司 | Formula of 80% imidacloprid water dispersible granule and production process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101518236A (en) * | 2008-02-28 | 2009-09-02 | 北京绿色农华植保科技有限责任公司 | Imidacloprid water dispersible granule |
| CN101810189A (en) * | 2010-04-01 | 2010-08-25 | 中国热带农业科学院环境与植物保护研究所 | Pesticide composite of imidacloprid and acetamiprid water dispersible granules |
| CN101999397A (en) * | 2010-11-18 | 2011-04-06 | 利民化工股份有限公司 | Phosethy-Al and folpet water dispersible granule and preparation method thereof |
-
2011
- 2011-11-22 CN CN2011103735400A patent/CN102362589A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518236A (en) * | 2008-02-28 | 2009-09-02 | 北京绿色农华植保科技有限责任公司 | Imidacloprid water dispersible granule |
| CN101810189A (en) * | 2010-04-01 | 2010-08-25 | 中国热带农业科学院环境与植物保护研究所 | Pesticide composite of imidacloprid and acetamiprid water dispersible granules |
| CN101999397A (en) * | 2010-11-18 | 2011-04-06 | 利民化工股份有限公司 | Phosethy-Al and folpet water dispersible granule and preparation method thereof |
Non-Patent Citations (2)
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|---|
| 由林雪等: "70%吡虫啉水分散粒剂的研制", 《今日农药》 * |
| 郑彩华: "75%吡虫啉水分散粒剂的研制", 《安徽化工》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444708A (en) * | 2013-08-01 | 2013-12-18 | 广东中迅农科股份有限公司 | Water dispersible granule containing chitosan |
| CN106259412A (en) * | 2016-08-16 | 2017-01-04 | 仇颖莹 | A kind of preparation method of imidacloprid water dispersible granule |
| CN108207990A (en) * | 2018-02-27 | 2018-06-29 | 镇江先锋植保科技有限公司 | A kind of imidacloprid water dispersible granule of high weight suspensibility |
| CN113068709A (en) * | 2021-04-06 | 2021-07-06 | 北京优利拓普农作物科技有限公司 | Full-soluble granules and application thereof |
| CN113475520A (en) * | 2021-07-13 | 2021-10-08 | 苏州市江枫白蚁防治有限公司 | Formula of 80% imidacloprid water dispersible granule and production process thereof |
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Application publication date: 20120229 |