Method for preparing mosquito slow-release attractant

A technology of attractant and mosquito, applied in the direction of attracting pests, botanical equipment and methods, biocides, etc., can solve the problems of fast volatilization and short duration of effect, achieve good duration of effect, simple preparation method, good The effect of the lure effect

Inactive Publication Date: 2012-10-03
陕西广仁生物科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the attractant in the prior art, and in order to overcome the problems of fast volatilization and short duration of the existing mosquito attractant, the purpose of the present invention is to provide a preparation method of the mosquito slow-release attractant , this method wraps the attractant ingredients in the polymer film produced by the polymerization reaction of polyol and isocyanate, which achieves the effect of slow release of the attractant ingredients, and is suitable for indoor and outdoor various species including Culex palustris and Aedes albopictus. Mosquito trap, high attracting efficiency, low price, wide range of materials

Method used

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  • Method for preparing mosquito slow-release attractant

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preparation example Construction

[0014] This embodiment provides a kind of preparation method of new mosquito slow-release attractant, and its implementation steps are:

[0015] (1) Dissolve 7-10 parts by weight of 1-octen-3-ol, 2-5 parts by weight of heptyl acetate, and 6-9 parts by weight of nonylacetate in 100 volumes Parts of organic solvent for subsequent use;

[0016] (2) Stir 1000~7500 parts by weight of polyols with a molecular weight of <5000 at 40°C~75°C and a vacuum of -0.1Mpa for 60min;

[0017] (3) Add the spare solution in step (1) to the polyol in step (2), and continue stirring under the conditions of 40°C~75°C and a vacuum of -0.1Mpa until uniform, and then add 2500~10000 parts by weight isocyanate, continue to stir for 120min, and vacuumize after the stirring stops to obtain a paste-like mosquito slow-release attractant.

[0018] The applicant's experiment proves that the mosquito slow-release attractant has the characteristics of long-lasting effect, high efficiency, can reduce or avoid t...

Embodiment 1

[0023] Dissolve the attractant 1-octen-3-ol: 7g, heptyl acetate: 3g, methyl indole (nonylacetate): 6g in 100ml of acetone, set aside;

[0024] Stir 1kg of polybutadiene resin with a molecular weight of 3000 at 40°C and a vacuum of -0.1Mpa for 60min;

[0025] Add the acetone-dissolved solution to the stirred polybutadiene resin, continue to stir at 40°C and a vacuum of -0.1Mpa until uniform, then add 4.5kg of toluene diisocyanate, continue to stir for 120min, after the stirring stops Vacuumize to obtain a paste-like mosquito slow-release attractant;

[0026] The creamy mosquito slow-release attractant is made into 5g / capsules according to the conventional capsule production method. The three attractant components (i.e., 1-octen-3-ol, heptyl acetate, and methyl indole (nonylacetate)) are all encapsulated in polyamethylene oxide formed by the reaction of polybutadiene resin and toluene diisocyanate. In the polymer film of ester. The capsule particles are filled into glass flas...

Embodiment 2

[0028] Dissolve the attractant 1-octen-3-ol: 10g, heptylacetate: 4g, methyl indole (nonylacetate): 8g in 100ml of acetone, and set aside;

[0029] Stir 1kg of hydroxyl-terminated polyether resin with a molecular weight of 2000 at 75°C for 60min at a vacuum of -0.1Mpa;

[0030] Add the solution dissolved in acetone above into the stirred hydroxyl-terminated polyether resin, and continue stirring at 40°C with a vacuum of -0.1Mpa until uniform, then add 5kg of cyclohexanediisocyanate at 75°C and a vacuum of -0.1Mpa Continue to stir for 120min at 0.1Mpa, vacuumize after the stirring is stopped, and obtain a paste-like mosquito slow-release attractant;

[0031] The paste mosquito slow-release attractant is made into 5g / capsule granules according to the conventional capsule production method. The three attractant components (i.e. 1-octen-3-ol, heptylacetate, and methyl indole (nonylacetate)) are all wrapped in polyamethylene oxide formed by the reaction of hydroxyl-terminated polye...

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Abstract

The invention discloses a method for preparing a mosquito slow-release attractant. The method comprises the following steps: dissolving the following components by weight: 7-10 parts of 1-octen-3-ol, 2-5 parts of heptyl acetate and 6-9 parts of nonylacetate in an organic solvent with 100 parts in volume for later use; stirring 1000-7500 parts of polyatomic alcohol of which the molecular weight is less than 5000 for 60 minutes under the conditions that the temperature is 40-75 DEG C and the vacuum degree is -0.1Mpa; adding the solution for later use into the polyatomic alcohol; continuously stirring to be uniform under the conditions that the temperature is 40-75 DEG C and the vacuum degree is -0.1Mpa; adding 2500-10000 parts of isocyanate by weight; continuously stirring for 120 minutes; stopping stirring and vacuumizing to obtain the pasty mosquito slow-release attractant. With the adoption of the prepared mosquito slow-release attractant, culex pipiens pallens, aedes albopictus and other mosquitoes can be continuously effectively attracted with high attraction efficiency; the method is simple; the environment cannot be polluted by the raw materials; and the release speed is stable.

Description

technical field [0001] The invention belongs to the technical field of bioengineering, and in particular relates to a preparation method of a mosquito slow-release attractant. Background technique [0002] Mosquitoes, belonging to the class Insecta, order Diptera, and family Culicidae, are one of the important sanitary pests and the most important vector insects for spreading diseases. In addition to directly sucking human blood, mosquitoes can also transmit a variety of animal and human diseases, including yellow fever, West Nile virus, viral encephalitis, dengue fever, lymphatic filariasis, etc. According to the World Health Organization, about two billion people live in areas where these mosquito-borne diseases are widespread. Common disease-infecting mosquito species are: Culex light-colored, Culex bitaeniorhynchus, Culex fatigue, Culex mimic, Culex brown-tailed, Culex stylus, Culex brownhead, and Aedes albopictus. Among them, Aedes albopictus and Culex palustris are w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/38A01N31/02A01N37/02A01N25/04A01N25/18A01P19/00
Inventor 安德荣李金岭耿伟华
Owner 陕西广仁生物科技有限公司
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