CN103039464B - Rotenone microcapsule suspending agent and preparation method thereof - Google Patents
Rotenone microcapsule suspending agent and preparation method thereof Download PDFInfo
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- CN103039464B CN103039464B CN201210588729.6A CN201210588729A CN103039464B CN 103039464 B CN103039464 B CN 103039464B CN 201210588729 A CN201210588729 A CN 201210588729A CN 103039464 B CN103039464 B CN 103039464B
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- rotenone
- suspending agent
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Abstract
The invention discloses a rotenone microcapsule suspending agent and a preparation method thereof. The rotenone microcapsule suspending agent comprises the following components by weight percentage: 0.03-1.8 percent of rotenone and 0.1-0.5 percent of emulsifying agent, wherein the rotenone microcapsule suspending agent takes the rotenone as the active ingredient and takes star anise oil as the emulsifying agent. According to the invention, the star anise oil directly extracted from a plant replaces other chemosynthetic aromatic organic solvents to be used as the emulsifying agent to prepare the rotenone microcapsule suspending agent, so as to enable the rotenone microcapsule suspending agent to enter the ranks of environment-friendly formulations. As the star anise oil extracted from the star anise is directly utilized, the economic benefits of essential oil plant planters are improved, the production cost of pesticide is reduced, the control effect of the rotenone microcapsule suspending agent is improved, a pure natural synergistic pesticide formulation is further created, and meanwhile, all components and corresponding contents of the rotenone microcapsule suspending agent enable the rotenone microcapsule suspending agent to have favorable control effect.
Description
Technical field
The present invention relates to insecticide preparation field, be specifically related to a kind of rotenone microcapsule suspending agent and preparation method thereof.
Background technology
Rotenone is a kind of a kind of efficient insecticide active substance extracting from Derris trifoliate jewelvine section liane, it plays action of contace poison and malicious stomach effect to insect, enters growing of interference cell after polypide, makes it hypopnea, polypide can not get energy supply, drumble and dead.It is to environment, people and animals, pest natural enemy and other beneficial organism safety, and insect is not easy to develop immunity to drugs, and rotenone is easily oxidized in air, to biology and environmental influence are little, therefore belongs to environment amenable insecticide active substance around.Rotenone insecticide variety mostly is cream preparation at present, the use of this cream preparation agricultural chemicals has also brought negative effect to environment in improving crop yield, the aromatic hydrocarbons organic solvent that missible oil consumption is a large amount of, these toxic solvents cause environmental pollution, are detrimental to health.
Preparation Forms of Modern Pesticide is towards water baseization, ultramicronising, without efflorescence with control the development of release aspect, i.e. the formulations of pesticide taking water as matrix, replace the large old formulation of emulsifiable concentrate pesticide of consumption of organic solvent with water baseization pesticidal preparations such as suspending agent, microemulsion, aqueous emulsions.
Microcapsule method is an important application technology in formulations of pesticide preparation; compared with conventional pesticide technology; microcapsules have protective core material substance to be avoided the impact of environmental condition, the decomposition rate of pesticide activity component is slowed down, reduces pesticide activity component volatilization loss; thereby improve the availability of active component; extend its lasting period, reduce the advantage such as number of times and frequency of dispenser.
And the rotenone microcapsule suspending agent of producing at present, the organic solvents such as the aromatic hydrocarbons that the emulsifier adopting great majority are chemosynthesis, mostly poisonous, production cost is high and environmental pollution is serious.
Publication number is that CN102599199A discloses a kind of micro-capsule suspension, it consists of: 2.25 parts of mixed solution 6+.75 part, emulsifier, the Toluene-2,4-diisocyanate of 1.25 parts of the former medicines of 40 quality % rotenone, 50 1.0 parts of quality % pyrethrin crude oil, cyclohexanone and dimethylbenzene, 0.75 part of 4-vulcabond, 0.375 part of glycerine, polyvinyl alcohol concentration are 78 parts of the aqueous solution, 10 parts of the organic acids of 0.5 quality %.The former medicine of active ingredient rotenone and pyrethrosin primary oil require amount are total up to 2.25 parts, large usage quantity; The emulsifier of selecting is agriculture breast 0206, has anion surfactant and non-ionic surface active agent to make through composite, is all chemosynthesis, and cost is higher, and to the toxic effect of environment.Therefore, prior art has yet to be improved and developed.
Oil of badian is the fresh branches and leaves of Magnoliacea plant Chinese anise or the volatile oil that ripening fruits is extracted through steam distillation.Oil of badian has the lower gas of appetizing, loose cold, warm stomach, pain relieving texts, and Recent study shows that it has antibacterial, insecticidal activity and Green Tea Extract oxidative function preferably.Because oil of badian is environmentally friendly, harmless, be widely used in spices and pharmaceutical industry.But also do not set it as the application of emulsifier at present.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of rotenone microcapsule suspending agent and preparation method thereof, be intended to solve the problem that current rotenone formulation is backward, large to environmental hazard.
Technical scheme of the present invention is as follows:
A kind of rotenone microcapsule suspending agent, wherein, described rotenone microcapsule suspending agent percentage meter by weight, comprises following component:
Rotenone: 0.03-1.8%;
Emulsifier: 0.1-0.5%;
Described rotenone microcapsule suspending agent is taking rotenone as active ingredient, taking oil of badian as emulsifier.
Described rotenone microcapsule suspending agent, wherein, described rotenone microcapsule suspending agent, percentage meter by weight, also comprises following component:
Surplus water complements to 100%.
Described rotenone microcapsule suspending agent, wherein, described cyst material is Lauxite.
Described rotenone microcapsule suspending agent, wherein, described capsule heart solvent is chloroform.
Described rotenone microcapsule suspending agent, wherein, described suspending agent is NaCl.
Described rotenone microcapsule suspending agent, wherein, described viscosity modifier is polyvinyl alcohol.
Described rotenone microcapsule suspending agent, wherein, described antifreezing agent is selected sorbierite.
As above a preparation method for a described rotenone microcapsule suspending agent, wherein, the preparation method of described rotenone microcapsule suspending agent comprises the following steps:
Weigh in proportion rotenone, cyst material, capsule heart solvent, suspending agent, viscosity modifier, antifreezing agent and water, join in sand mill, sand milling 20-30 minute, filters, and obtains filtrate; In filtrate, add emulsifier for mixing even, and get product after regulating pH.
The preparation method of described rotenone microcapsule suspending agent, wherein, described emulsifier is oil of badian, described cyst material is Lauxite, and described capsule heart solvent is chloroform, and described suspending agent is NaCl, described viscosity modifier is polyvinyl alcohol, and described antifreezing agent is selected sorbierite.
The preparation method of described rotenone microcapsule suspending agent, wherein, is adjusted to 6-6.5 by pH value.
Beneficial effect: the invention provides a kind of rotenone microcapsule suspending agent and preparation method thereof, the aromatics organic solvent that replaces other chemosynthesis using the oil of badian directly extracting from plant is as emulsifier, prepare rotenone microcapsule suspending agent, give rotenone microcapsule suspending agent new significance of times, made it stride into the ranks of environment-friendly type preparation.Because it directly utilizes the oil of badian extracting from Chinese anise, this has not only improved the economic benefit at aromatic plant plantation family, reduce the production cost of agricultural chemicals, also improved rotenone microcapsule suspending agent control efficiency, and started a kind of Synergistic fertilizer preparation of pure natural.Meanwhile, each component of rotenone microcapsule suspending agent and content thereof make its control efficiency good.
Embodiment
The invention provides a kind of rotenone microcapsule suspending agent and preparation method thereof, for making object of the present invention, technical scheme and effect clearer, clear and definite, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Rotenone microcapsule suspending agent provided by the invention, is taking rotenone as active ingredient, is equipped with cyst material, capsule heart solvent, emulsifier, viscosity modifier, suspending agent, antifreezing agent, water formation rotenone microcapsule suspending agent.Wherein, its be the oil of badian directly to extract from plant replace other chemosynthesis aromatics organic solvent as emulsifier, not only to environment is not had to toxic action, but also improve rotenone microcapsule suspending agent control efficiency, reduced the production cost of agricultural chemicals.
Particularly, described rotenone microcapsule suspending agent, by mass percentage, comprises following component:
Surplus water complements to 100%;
Wherein, emulsifier is oil of badian; Described cyst material is Lauxite; Described capsule heart solvent is chloroform; Described suspending agent is NaCl; Described viscosity modifier is polyvinyl alcohol; Described antifreezing agent is selected sorbierite.
The preparation method of rotenone microcapsule suspending agent described in also providing in the present invention, specifically comprises the following steps:
Weigh in proportion 0.03%～1.8% rotenone, 8%～40% cyst material, 15%～20% capsule heart solvent, 4%～15% suspending agent, 1%～10% viscosity modifier, 1%～5% antifreezing agent, 0.1%～0.5% emulsifier, surplus is water; Rotenone, cyst material, capsule heart solvent, suspending agent, viscosity modifier, antifreezing agent and water are joined in sand mill, and sand milling is after 20 to 30 minutes, and solution becomes transparence; Filter, obtain filtrate; In filtrate, add 0.1%～0.5% emulsifier for mixing even, and regulate after PH to 6-6.5, obtain rotenone suspending agent.
Below in conjunction with embodiment, the present invention is further elaborated, but be not limitation of the present invention.
Embodiment 1
The rotenone microcapsule suspending agent of the present embodiment, taking rotenone as active ingredient, is equipped with cyst material, capsule heart solvent, emulsifier, viscosity modifier, suspending agent, antifreezing agent, water formation rotenone microcapsule suspending agent.Contain by mass percentage:
Wherein, emulsifier is oil of badian.Cyst material is Lauxite; Capsule heart solvent is chloroform; Suspending agent is NaCl; Viscosity modifier is polyvinyl alcohol; Antifreezing agent is selected sorbierite.
The preparation method of the rotenone microcapsule suspending agent of the present embodiment: weigh in proportion 0.03% rotenone, 8% cyst material, 15% capsule heart solvent, 4% suspending agent, 1% viscosity modifier, 1% antifreezing agent, add water 70.87%, then join in sand mill, after sand milling approximately 20 minutes, solution becomes transparence.Filter to get filtrate, add 0.1% oil of badian to stir, and regulate after PH=6.5, obtain rotenone suspending agent.
Embodiment 2
A kind of rotenone microcapsule suspending agent, taking rotenone as active ingredient, is equipped with cyst material, capsule heart solvent, emulsifier, viscosity modifier, suspending agent, antifreezing agent, water formation rotenone microcapsule suspending agent.Contain by mass percentage:
Wherein, emulsifier is oil of badian.Cyst material is Lauxite; Capsule heart solvent is chloroform; Suspending agent is NaCl; Viscosity modifier is polyvinyl alcohol; Antifreezing agent is selected sorbierite.
The preparation method of the rotenone microcapsule suspending agent of the present embodiment, weigh in proportion 1.8% rotenone, 40% cyst material, 20% capsule heart solvent, 15% suspending agent, 10% viscosity modifier, 5% antifreezing agent, water 7.7%, then join in sand mill, after sand milling approximately 30 minutes, solution becomes transparence.Filter to get filtrate, add 0.5% oil of badian to stir, and regulate after PH=6, obtain rotenone suspending agent.
Embodiment 3
For having a try agent: the rotenone microcapsule suspending agent in experimental group: embodiment 1; Control group: rotenone microcapsule suspending agent on the market.
Study thing and controlling object: cabbage; Cabbage caterpillar.
30 square metres of community, experimental field areas, test the last fortnight is not executed any agricultural chemicals, gets respectively 8 cabbages as the each instar larvae number of a batch total number, acts on respectively plant for the agent of having a try, 1,2,3 day remaining borer population alive of investigation after medicine.The results are shown in Table 1.Result shows that the rotenone microcapsule suspending agent in embodiment 1 has good preventive and therapeutic effect to cabbage caterpillar.
Table 1 is prevented and treated cabbage caterpillar test effect
Embodiment 4
For having a try agent: the rotenone microcapsule suspending agent in experimental group: embodiment 2; Control group: rotenone microcapsule suspending agent on the market.
For studying thing and controlling object: cabbage; Cabbage caterpillar.
30 square metres of community, experimental field areas, test the last fortnight is not executed any agricultural chemicals, gets respectively 8 cabbages as the each instar larvae number of a batch total number, acts on respectively plant for the agent of having a try, 1,2,3 day remaining borer population alive of investigation after medicine.The results are shown in Table 2.Result shows that the rotenone microcapsule suspending agent in embodiment 2 has good preventive and therapeutic effect to cabbage caterpillar.
Table 2 is prevented and treated cabbage caterpillar test effect
In sum, rotenone microcapsule suspending agent provided by the present invention and preparation method thereof, the aromatics organic solvent that replaces other chemosynthesis using the oil of badian directly extracting from plant is as emulsifier, prepare rotenone microcapsule suspending agent, not only can reduce the production cost of agricultural chemicals, can also improve rotenone microcapsule suspending agent control efficiency, meanwhile, also environmentally friendly pollution-free.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (3)
1. a rotenone microcapsule suspending agent, is characterized in that, described rotenone microcapsule suspending agent percentage meter by weight, comprises following component:
Rotenone: 0.03-1.8%;
Emulsifier: 0.1-0.5%;
Described rotenone microcapsule suspending agent is taking rotenone as active ingredient, taking oil of badian as emulsifier;
Described rotenone microcapsule suspending agent, percentage meter by weight, also comprises following component:
Cyst material: 8-40%;
Capsule heart solvent: 15-20%;
Viscosity modifier: 1-10%;
Suspending agent: 4-15%;
Antifreezing agent: 1-5%;
Surplus water complements to 100%;
Described cyst material is Lauxite;
Described capsule heart solvent is chloroform;
Described suspending agent is NaCl;
Described viscosity modifier is polyvinyl alcohol;
Described antifreezing agent is selected sorbierite.
2. a preparation method for rotenone microcapsule suspending agent as claimed in claim 1, is characterized in that, the preparation method of described rotenone microcapsule suspending agent comprises the following steps:
Weigh in proportion rotenone, cyst material, capsule heart solvent, suspending agent, viscosity modifier, antifreezing agent and water, join in sand mill, sand milling 20-30 minute, filters, and obtains filtrate; In filtrate, add emulsifier for mixing even, and get product after regulating pH;
Described emulsifier is oil of badian, and described cyst material is Lauxite, and described capsule heart solvent is chloroform, and described suspending agent is NaCl, and described viscosity modifier is polyvinyl alcohol, and described antifreezing agent is selected sorbierite.
3. the preparation method of rotenone microcapsule suspending agent according to claim 2, is characterized in that, pH value is adjusted to 6-6.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588729.6A CN103039464B (en) | 2012-12-31 | 2012-12-31 | Rotenone microcapsule suspending agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588729.6A CN103039464B (en) | 2012-12-31 | 2012-12-31 | Rotenone microcapsule suspending agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103039464A CN103039464A (en) | 2013-04-17 |
| CN103039464B true CN103039464B (en) | 2014-11-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486610A (en) * | 2003-07-28 | 2004-04-07 | 华南农业大学 | Rotenone microcapsule and its prepn |
| CN1739352A (en) * | 2005-09-20 | 2006-03-01 | 云南大学 | Suspension recipe of rotenone microcapsule |
| WO2006111839A1 (en) * | 2005-04-22 | 2006-10-26 | Chemia S.P.A. | Preparation of compositions with high insecticidal activity |
| CN1903030A (en) * | 2005-07-26 | 2007-01-31 | 常其钊 | Plant pesticide surfactant, preparation method and application thereof |
| CN102599199A (en) * | 2012-02-16 | 2012-07-25 | 华南农业大学 | Microcapsule suspending agent as well as preparation method and application thereof |
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2012
- 2012-12-31 CN CN201210588729.6A patent/CN103039464B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486610A (en) * | 2003-07-28 | 2004-04-07 | 华南农业大学 | Rotenone microcapsule and its prepn |
| WO2006111839A1 (en) * | 2005-04-22 | 2006-10-26 | Chemia S.P.A. | Preparation of compositions with high insecticidal activity |
| CN1903030A (en) * | 2005-07-26 | 2007-01-31 | 常其钊 | Plant pesticide surfactant, preparation method and application thereof |
| CN1739352A (en) * | 2005-09-20 | 2006-03-01 | 云南大学 | Suspension recipe of rotenone microcapsule |
| CN102599199A (en) * | 2012-02-16 | 2012-07-25 | 华南农业大学 | Microcapsule suspending agent as well as preparation method and application thereof |
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| CN103039464A (en) | 2013-04-17 |
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Granted publication date: 20141112 Termination date: 20181231 |