Insecticidal aerosol and preparation method thereof

An aerosol and synergist technology, which is applied in the field of sanitation and disinfection, can solve the problems of unfavorable insecticidal aerosol, short retention time on the body surface of pests, and easy blockage of spray ports, etc., to achieve easy large-scale production, Conducive to long-distance spraying and improving the effect of insecticidal effect

Active Publication Date: 2019-10-29
LOOBI GUANGZHOU HEALTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research and development of water-based insecticidal aerosols mainly faces two technical problems: first, the insecticidal effects of water-based insecticidal aerosols and alcohol-based products are significantly lower than those of oil-based products, which is Due to the presence of a wax layer on the surface of insects, oil solvents help insecticides penetrate the surface of insects quickly, while ethanol and water have poor compatibility with the hydrophobic surface of insects due to their high polarity, and their volatilization speed is fast , the residence time on the surface of the pest is short, which is not conducive to the onset of the insecticidal aerosol
Second, the water-based insecticide aerosol prepared by using conventional emulsifiers is an unstable emulsion, which will separate after a long period of time. The spray tank must be shaken before use, and it cannot be sprayed directly like oil-based products. Inconvenient, and the preparation process is limited by the type of propellant. The addition of some propellants may destroy the balance of the emulsion, resulting in flocculation, turbidity, and stratification, and it is easy to block the spray port during use.
The spray is a type of surfactant-free microemulsions (SFMEs), which effectively solves the phenomenon of emulsion stratification, but is limited by the type of propellant. Using propane butane as a propellant will cause system stratification, which has certain limitations

Method used

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  • Insecticidal aerosol and preparation method thereof
  • Insecticidal aerosol and preparation method thereof
  • Insecticidal aerosol and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An insecticidal aerosol comprising the following components in mass percent:

[0031] Tetramethrin 0.3%, D-Phenethrin 0.2%, Hydrogenated Polyisobutylene 2%, Sophorolipid 1%, Dipropylene Glycol 3.75%, Methylcyclohexanol 1.25%, Oxypiperonyl Butoxide 0.2%, Lemon Flavor 0.3%, dimethyl ether 40% and water 51%.

[0032] Preparation steps:

[0033] S1: Mix Tetramethrin, D-Phenothrin, Hydrogenated Polyisobutylene, Sophorolipid, Dipropylene Glycol, Methylcyclohexanol, Oxypiperonyl Butoxide, Lemon Essence and water in proportion, stir well until clear, get liquid medicine;

[0034] S2: Fill the liquid medicine into the aerosol container, insert the valve and seal it;

[0035] S3: Inject the propellant dimethyl ether into the aerosol container under high pressure, and press the aerosol cap to obtain the insecticidal aerosol.

Embodiment 2

[0037] An insecticidal aerosol comprising the following components in mass percent:

[0038] Tetramethrin 0.2%, D-phenothrin 0.6%, Hydrogenated polyisobutylene 3%, Sophorolipid 2%, Dipropylene glycol 5.6%, Methylcyclohexanol 1.4%, Oxypiperonyl butoxide 0.1%, Lavender essence 0.1%, propane 32% and water 55%.

[0039] Refer to Example 1 for the preparation steps.

Embodiment 3

[0041] An insecticidal aerosol comprising the following components in mass percent:

[0042] Tetramethrin 0.5%, D-Phenethrin 0.5%, Hydrogenated Polyisobutylene 4%, Sophorolipid 2%, Dipropylene Glycol 6%, Methylcyclohexanol 2%, Oxypiperonyl Butoxide 0.1%, Bergamot Flavor 0.1%, n-butane 35% and water 49.8%.

[0043] Refer to Example 1 for the preparation steps.

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Abstract

The invention discloses an insecticidal aerosol and a preparation method thereof. The insecticidal aerosol comprises the following components in percentage by mass: 0.1-1% of pyrethroid, 1-4% of hydrogenated polyisobutene, 0.5-2% of glycolipid, 3-8% of mixed alcohol, 0.1-0.5% of a synergist, 0.05-0.3% of an essence, 30-45% of a propellant and 45-55% of water. The insecticidal aerosol disclosed bythe invention is a thermodynamically stable water-based microemulsion system, has a particle size in a range of 10-100 nm, has transparent appearance, is not layered after being stood for a long time,has good stability, and can be directly sprayed without shaking. In addition, the insecticidal aerosol has an insecticidal effect close to an oil-based product, and has fast killing effects on mosquitoes, flies and cockroaches.

Description

technical field [0001] The invention relates to the technical field of sanitation and disinfection, in particular to an insecticidal aerosol and a preparation method thereof. Background technique [0002] At present, there are mainly three types of aerosols used for household sanitation and insecticide, namely oil-based aerosols, alcohol-based aerosols and water-based aerosols. Among them, more than 90% of the insecticidal aerosols produced in my country are oil-based or alcohol-based products, and their contents contain at least 80% of volatile organic compounds. The VOC emissions are large, which is not conducive to environmental protection, and the production cost is high. , there is a hidden danger of inflammability and explosion, which is not conducive to safety. [0003] Water-based insecticide aerosol is a kind of W / O or O / W emulsion, which is green and environmentally friendly. It conforms to the current environmental protection concept of energy saving and emission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/06A01N53/02A01N37/32A01N53/08A01N27/00A01N43/30A01P7/04
CPCA01N25/06A01N27/00A01N37/32A01N43/30A01N53/00
Inventor 陈澄江
Owner LOOBI GUANGZHOU HEALTH IND CO LTD
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