CN1406482A - Insecticide and preparation method thereof - Google Patents
Insecticide and preparation method thereof Download PDFInfo
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- CN1406482A CN1406482A CN 01133232 CN01133232A CN1406482A CN 1406482 A CN1406482 A CN 1406482A CN 01133232 CN01133232 CN 01133232 CN 01133232 A CN01133232 A CN 01133232A CN 1406482 A CN1406482 A CN 1406482A
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- based oxide
- nano silicon
- insecticide
- pyrethroid series
- series medicament
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Abstract
An insecticide is prepared from pyrethroid class of insecticides, nano Si-base oxide and organic solvent through mixing in ball grinder, removing organic solvent, and mixing with filming agent. Its advantages are durable action, high optical stability, and no environmental pollution.
Description
Technical field
What the present invention relates to is a kind of insecticide and preparation method thereof, the insecticides and preparation method thereof of especially tagging.
Background technology
Present widely used insecticide surely belongs to fumigant, fumigant, aerosol, spray, particle etc.For the insecticides of tagging, the use of particle is least convenient because of the limitation that placement location is arranged, though with escaping gas or air is that the aerosol and the spray of carrier is more effective, but their longevities of residure after use are very short, to photo-labile, decomposition failure, and its effective ingredient easily produces certain harm to the people among filling the air the space, and the undecomposable composition of its remnants causes certain pollution to environment.
Summary of the invention
At the existing deficiency of above-mentioned insecticide, it is long that the technical problem to be solved in the present invention just provides a kind of longevity of residure, stable to light, the insecticide harmless to human and environment, and this method for producing insecticide.
Insecticide provided by the invention is made up of pyrethroid series medicament and nano silicon-based oxide, is that the pyrethroid series medicament is adsorbed on the mixture on the nano silicon-based oxide, and weight ratio between the two is that 1-5 compares 10-50.This insecticide can directly use or make spray, paint and be used for desinsection, also can be added on the infringement that is used for preventing worm in the other materials.
Method for producing insecticide provided by the invention, its technical process is:
1, pyrethroid series medicament and nano silicon-based oxide and organic solvent are mixed in ball mill fully, make nano silicon-based oxide fully adsorb the pyrethroid series medicament, wherein the nano silicon-based oxide that is added is 10 with the weight ratio of the pyrethroid series medicament that is added: 1-20: 3, and the organic solvent that is added is 5 with the weight ratio of pyrethroid series medicament that is added and nano silicon-based oxide sum: 1-10: 1;
2, mixture is removed obtained the pyrethroid series medicament behind the organic solvent and be adsorbed on mixture on the nano silicon-based oxide;
3, the mixture that the pyrethroid series medicament is adsorbed on the nano silicon-based oxide disperses to obtain nano level solid insecticidal.
Method for producing insecticide provided by the invention, the pyrethroid series medicament that is adopted are to be 1 by weight with tetramethrin and cypermethrin: 4-3: 8 ratio mixes.
Method for producing insecticide provided by the invention, the initial size of the nano silicon-based oxide that is adopted are less than 20nm, and proportion is 0.04g/cm
3, the trade mark of producing as Zhoushan Tomorrow Nanomaterials Co., Ltd is the nano silicon-based oxide of DP1.
Method for producing insecticide provided by the invention, the organic solvent that is adopted are ethanol, toluene, benzene, dimethylbenzene, n-butanol, acetone, hexane or chloroform.Organic solvent can use separately or several mixing is used.
Method for producing insecticide provided by the invention has used sesame oil as synergist when pyrethroid series medicament and nano silicon-based oxide and organic solvent are mixed in ball mill.
Method for producing insecticide provided by the invention, also the mixture that the pyrethroid series medicament can be adsorbed on the nano silicon-based oxide mixes with film forming agent again, to make the liquid insecticide that sprays or be coated with use.Film forming agent adds by the amount of the 94.5-98.9% that accounts for total amount (weight), be after film forming agent adds, each components contents is that the content of pyrethroid series medicament is 1-5 ‰ (weight) in the insecticide, the content of nano silicon-based oxide is 10-50 ‰ (weight), and the content of film forming agent is 94.5-98.9% (weight).
Method for producing insecticide provided by the invention, the film forming agent that is adopted are various cellulose aqueous solutions or acrylic emulsion.
Method for producing insecticide provided by the invention, active ingredient in the insecticide is loaded in the nano silicon-based oxide, the big adsorbing capacity and the slow releasing function that utilize huge specific surface that nano silicon-based oxide has and multi-cellular structure feature to be brought, thus make the efficacy of a drug of this insecticide to discharge enduringly from the nano silicon-based oxide midium or long term.For making liquid insecticide, formed film also is a porous after the film forming agent drying, be similar to the pore on people's the skin, the effect of breathing moisture is arranged, the insecticide that can will discharge from nano silicon-based oxide forms small crystal in film coated surface, when insect when the insecticide film coated surface is creeped, the insecticide crystal enters in the pest body by the positions such as epidermis, foot, feeler or valve of polypide, causes and is poisoned to death.Because nano silicon-based oxide is long to the longevity of residure that the parcel and the slowly-releasing of insecticide makes this insecticide, stable to light, be difficult for decomposition failure, film the term of validity after the use about 3 months as insecticide.Simultaneously,, make base-material after adding insecticide provided by the invention, can not destroy its sense organ because nano silicon-based oxide has transparent characteristics in base-material.
Embodiment
Embodiment 1: insecticide, wherein composition and content (weight ratio) are: tetramethrin: cypermethrin: nano silicon-based oxide: hydroxyethyl cellulose aqueous solution=1: 4: 60: 1800.
Embodiment 2: tetramethrin and cypermethrin are mixed and stirred by weight 1: 3 ratio make the pyrethroid series medicament, acetone and benzene are made organic solvent by weight 1: 2 ratio mixing, take by weighing nano silicon-based oxide by 7 times of amounts then to pyrethroid series medicament weight, and will put into the ball mill ball milling 2 hours after their mixing, after ball milling finishes, mixture is taken out, in 120 ℃ of oven dry, obtain solid insecticidal after the natural seasoning.
Embodiment 3: tetramethrin and cypermethrin are mixed and stirred by weight 1: 4 ratio make the pyrethroid series medicament, n-butanol and dimethylbenzene are made organic solvent by weight 1: 1 ratio mixing, take by weighing nano silicon-based oxide by 10 times of amounts then to pyrethroid series medicament weight, and will put into the ball mill ball milling 2 hours after their mixing, after ball milling finishes, mixture is taken out, after the natural seasoning in 120 ℃ of oven dry.With water and hydroxyethylcellulose is that to be made into concentration be 8 ‰ hydroxyethyl cellulose aqueous solution to raw material.Mixture after will drying at last joins in the hydroxyethyl cellulose aqueous solution with 3% addition, just can obtain novel transparent pyrethroid based film insecticide after the ultrasonic dispersion.
Embodiment 4: tetramethrin and cypermethrin are mixed and stirred by weight 1: 1 ratio make the pyrethroid series medicament, ethanol and toluene are made organic solvent by weight 1: 1 ratio mixing, take by weighing nano silicon-based oxide by 8 times of amounts then to pyrethroid series medicament weight, measure sesame oil 5ml, then they are mixed and put into the ball mill ball milling 1.5 hours, after ball milling finishes, mixture is taken out, after the natural seasoning in 120 ℃ of oven dry.It is that addition is 2 ‰, just can obtain novel long-acting transparent pyrethroid based film insecticide after the ultrasonic dispersion in 50% the acrylic emulsion that dried mixture is joined concentration.
Claims (7)
1, a kind of insecticide contains the pyrethroid series medicament, it is characterized in that insecticide also comprises nano silicon-based oxide, is that the pyrethroid series medicament is adsorbed on the mixture on the nano silicon-based oxide, and weight ratio between the two is that 1-5 compares 10-50.
2, method for producing insecticide as claimed in claim 1 is characterized in that its technical process is:
I. pyrethroid series medicament and nano silicon-based oxide and organic solvent are mixed in ball mill fully, make nano silicon-based oxide fully adsorb the pyrethroid series medicament, wherein the nano silicon-based oxide that is added is 10 with the weight ratio of the pyrethroid series medicament that is added: 1-20: 3, and the organic solvent that is added is 5 with the weight ratio of pyrethroid series medicament that is added and nano silicon-based oxide sum: 1-10: 1;
Ii. mixture is removed and obtained the pyrethroid series medicament behind the organic solvent and be adsorbed on mixture on the nano silicon-based oxide.
3, method for producing insecticide as claimed in claim 2, it is characterized in that the pyrethroid series medicament that is adopted is is 1 with tetramethrin and cypermethrin by weight: 4-3: 8 ratio mixes.
4, method for producing insecticide as claimed in claim 2 is characterized in that the organic solvent that is adopted is one or more the mixture in ethanol, toluene, benzene, dimethylbenzene, n-butanol, acetone, hexane or the chloroform.
5, method for producing insecticide as claimed in claim 2 is characterized in that also having used sesame oil as synergist when pyrethroid series medicament and nano silicon-based oxide and organic solvent are mixed in ball mill.
6, method for producing insecticide as claimed in claim 2 is characterized in that the mixture that the pyrethroid series medicament is attached on the nano silicon-based oxide is mixed with film forming agent again, and film forming agent adds by the amount of the 94.5-98.9% that accounts for total amount (weight).
7, method for producing insecticide as claimed in claim 6 is characterized in that the film forming agent that is adopted is cellulose aqueous solution or acrylic emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01133232 CN1406482A (en) | 2001-09-13 | 2001-09-13 | Insecticide and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01133232 CN1406482A (en) | 2001-09-13 | 2001-09-13 | Insecticide and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1406482A true CN1406482A (en) | 2003-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01133232 Pending CN1406482A (en) | 2001-09-13 | 2001-09-13 | Insecticide and preparation method thereof |
Country Status (1)
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| CN (1) | CN1406482A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053601A (en) * | 2013-01-06 | 2013-04-24 | 中国检验检疫科学研究院 | Nano-grade hygienic insecticide and preparation method thereof |
| WO2022156177A1 (en) * | 2021-01-21 | 2022-07-28 | 江南大学 | Corn armyworm control method using nano-silicon quantum dots |
| US11445728B2 (en) | 2021-01-21 | 2022-09-20 | Jiangnan University | Application method of silicon quantum dots for controlling corn armyworm |
-
2001
- 2001-09-13 CN CN 01133232 patent/CN1406482A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053601A (en) * | 2013-01-06 | 2013-04-24 | 中国检验检疫科学研究院 | Nano-grade hygienic insecticide and preparation method thereof |
| WO2022156177A1 (en) * | 2021-01-21 | 2022-07-28 | 江南大学 | Corn armyworm control method using nano-silicon quantum dots |
| US11445728B2 (en) | 2021-01-21 | 2022-09-20 | Jiangnan University | Application method of silicon quantum dots for controlling corn armyworm |
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| WD01 | Invention patent application deemed withdrawn after publication |