Barbadosnut phorbol ester water emulsion insecticide and preparation method thereof

Abstract

The invention discloses a barbadosnut phorbol ester water emulsion insecticide. The barbadosnut phorbol ester water emulsion insecticide comprises the following components by weight: 1-20 percent of barbadosnut phorbol ester, 5-20 percent of a solvent, 3-20 percent of an emulsifier, 5-20 percent of a cosolvent, 2-5 percent of an antifreeze, 2-15 percent of a stabilizer, and the balance of water. The invention further discloses a preparation method of the barbadosnut phorbol ester water emulsion insecticide. Due to the fact that effective component of the product provided by the invention is phorbol ester extracted from barbadosnut seed oil and obtained as one of the side products generated producing a biodiesel, not only the barbadosnut resource is used comprehensively and the gap of using phorbol ester as the environment-friendly botanic pesticides is filled, but also the source of raw materials is wide, the cost is low, and the insecticide is easy to degrade and has no pollution to the environment. At the same time, as phorbol ester is a secondary metabolite of the plants, the product is featured with a wide insecticidal spectrum and various use ways, and is convenient to popularize.

Description

technical field

[0001] The invention belongs to the technical field of botanical pesticides and their preparation, and in particular relates to a natural insecticidal active ingredient extracted from Jatropha curcas seeds—jatropha phorbol ester insecticidal emulsion in water and a preparation method thereof. Background technique

[0002] Plant diseases and insect pests will cause huge losses to agricultural production every year, but at present the pesticide market at home and abroad is still dominated by chemical pesticides. Although chemical pesticides can effectively kill pests, the inherent shortcomings of chemical pesticides and unreasonable long-term abuse by people not only lead to serious 3R (residue, drug resistance and rampant pests) problems, but also destroy the ecological balance of nature. And it has caused great harm to human health, is not conducive to the development of green agriculture, and is not conducive to the export of agricultural products. Therefor...

Examples

Embodiment 1

[0024] Add 1.25 g of phorbol esters of Jatropha curcas with a purity of 80% into 5 g of ethanol and 5 g of glycerol, stir at room temperature to fully dissolve the phorbol esters, and obtain a homogeneous oil phase mixture; dissolve 3 g of calcium alkylsulfonate in 30ml of water, and then add 2g of pyrogallic acid, 2g of glycerin, 0.1g of polyoxyethylene oxypropylene glycerin, 2g of polyvinyl alcohol, and 0.1g of acetic acid into the aqueous solution, and stir to make it fully dissolve to obtain a homogeneous aqueous phase mixture; Then, add the obtained water phase mixture into the oil phase mixture, then stir for 20 minutes at a rotating speed of 10000r / min, and add the remaining 49.55ml of water at the same time to form the oil-in-water type phorbol jatropha ester Insecticidal water emulsion.

Embodiment 2

[0026] Add 1.25 g of phorbol ester of Jatropha curcas with a purity of 80% into 5 g of ethanol, 10 g of cyclohexanone, 2 g of toluene, and 3 g of dimethyl sulfoxide, and stir at room temperature to fully dissolve the phorbol ester to obtain a homogeneous oil phase mixture; Dissolve 3g of fatty alcohol polyoxyethylene ether phosphate and 5g of alkylphenol polyoxyethylene ether formaldehyde condensate in 30ml of water, and then add 15g of disodium hydrogen phosphate, 5g of urea, and 0.1g of polyoxyethylene oxypropylene into the aqueous solution Glycerin, 2g polyvinyl alcohol, 0.2g sodium hydroxide, stir to make it fully dissolve to obtain a homogeneous water phase mixture; at room temperature, add the obtained water phase mixture to the oil phase mixture, and then at a speed of 11000r / min, Stir for 10 minutes, and add the remaining 18.45ml of water at the same time to form an oil-in-water type phorbol jatropha insecticidal emulsion in water.

Embodiment 3

[0028] Add 5.88 g of phorbol esters of Jatropha curcas with a purity of 85% into 5 g of isopropanol, 5 g of cyclohexanone and 10 g of n-octanol, stir at room temperature to fully dissolve the phorbol esters, and obtain a homogeneous oil phase mixture; Alcohol polyoxyethylene ether phosphate is first dissolved in 30ml of water, then add 10g of borax, 3g of ammonium sulfate, 0.2g of polyoxyethylene oxypropylene glycerin, 1.5g of xanthan gum, and 0.1g of sodium hydroxide to the aqueous solution, and stir to make it Fully dissolve to obtain a homogeneous water phase mixture; at room temperature, add the obtained water phase mixture to the oil phase mixture, then stir for 20 minutes at a speed of 10000r / min, and add the remaining 4.32ml of water at the same time to form a water phase mixture. Oil-in-oil type jatropha phorbol ester insecticidal aqueous emulsion.

technical field

[0001] The invention belongs to the technical field of botanical pesticides and their preparation, and in particular relates to a natural insecticidal active ingredient extracted from Jatropha curcas seeds—jatropha phorbol ester insecticidal emulsion in water and a preparation method thereof. Background technique

[0002] Plant diseases and insect pests will cause huge losses to agricultural production every year, but at present the pesticide market at home and abroad is still dominated by chemical pesticides. Although chemical pesticides can effectively kill pests, the inherent shortcomings of chemical pesticides and unreasonable long-term abuse by people not only lead to serious 3R (residue, drug resistance and rampant pests) problems, but also destroy the ecological balance of nature. And it has caused great harm to human health, is not conducive to the development of green agriculture, and is not conducive to the export of agricultural products. Therefor...

Examples

Embodiment 1

[0024] Add 1.25 g of phorbol esters of Jatropha curcas with a purity of 80% into 5 g of ethanol and 5 g of glycerol, stir at room temperature to fully dissolve the phorbol esters, and obtain a homogeneous oil phase mixture; dissolve 3 g of calcium alkylsulfonate in 30ml of water, and then add 2g of pyrogallic acid, 2g of glycerin, 0.1g of polyoxyethylene oxypropylene glycerin, 2g of polyvinyl alcohol, and 0.1g of acetic acid into the aqueous solution, and stir to make it fully dissolve to obtain a homogeneous aqueous phase mixture; Then, add the obtained water phase mixture into the oil phase mixture, then stir for 20 minutes at a rotating speed of 10000r / min, and add the remaining 49.55ml of water at the same time to form the oil-in-water type phorbol jatropha ester Insecticidal water emulsion.

Embodiment 2

[0026] Add 1.25 g of phorbol ester of Jatropha curcas with a purity of 80% into 5 g of ethanol, 10 g of cyclohexanone, 2 g of toluene, and 3 g of dimethyl sulfoxide, and stir at room temperature to fully dissolve the phorbol ester to obtain a homogeneous oil phase mixture; Dissolve 3g of fatty alcohol polyoxyethylene ether phosphate and 5g of alkylphenol polyoxyethylene ether formaldehyde condensate in 30ml of water, and then add 15g of disodium hydrogen phosphate, 5g of urea, and 0.1g of polyoxyethylene oxypropylene into the aqueous solution Glycerin, 2g polyvinyl alcohol, 0.2g sodium hydroxide, stir to make it fully dissolve to obtain a homogeneous water phase mixture; at room temperature, add the obtained water phase mixture to the oil phase mixture, and then at a speed of 11000r / min, Stir for 10 minutes, and add the remaining 18.45ml of water at the same time to form an oil-in-water type phorbol jatropha insecticidal emulsion in water.

Embodiment 3

[0028] Add 5.88 g of phorbol esters of Jatropha curcas with a purity of 85% into 5 g of isopropanol, 5 g of cyclohexanone and 10 g of n-octanol, stir at room temperature to fully dissolve the phorbol esters, and obtain a homogeneous oil phase mixture; Alcohol polyoxyethylene ether phosphate is first dissolved in 30ml of water, then add 10g of borax, 3g of ammonium sulfate, 0.2g of polyoxyethylene oxypropylene glycerin, 1.5g of xanthan gum, and 0.1g of sodium hydroxide to the aqueous solution, and stir to make it Fully dissolve to obtain a homogeneous water phase mixture; at room temperature, add the obtained water phase mixture to the oil phase mixture, then stir for 20 minutes at a speed of 10000r / min, and add the remaining 4.32ml of water at the same time to form a water phase mixture. Oil-in-oil type jatropha phorbol ester insecticidal aqueous emulsion.

Images