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Disinfectant for forming small-particle-size aerosol, and preparation method and use method thereof

A disinfectant and aerosol technology, applied in botanical equipment and methods, chemicals for biological control, disinfection, etc., can solve problems such as large water consumption, spillage, and large droplet particle size, and save labor. , Improve work efficiency, good dispersion effect

Inactive Publication Date: 2020-07-03
天天向上(宁波)医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the current disinfectant solution is used, the artificial spraying method is basically adopted. There are at least three defects in the existing disinfectant solution spraying method. One, the droplet particle size obtained by the existing disinfectant solution spraying is large , generally in the range of 100-400 microns, and the droplets are basically unable to disperse. It needs to be covered in a certain area, which is often difficult in places with hygienic corners; secondly, the existing disinfectant spray The obtained droplet has poor volatility resistance. Even if the existing polyhexamethylene biguanide is atomized into a small particle size aerosol, the formed droplet has poor water retention performance and poor volatility resistance, resulting in spillage. The effect of full coverage; third, the existing disinfectant water spraying uses a large amount of water, and due to the large particle size of the droplets obtained by spraying, enough droplets are needed to cover a certain area, so that artificial spraying consumes more water and limits In order to carry out disinfection operations in water restricted areas

Method used

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  • Disinfectant for forming small-particle-size aerosol, and preparation method and use method thereof
  • Disinfectant for forming small-particle-size aerosol, and preparation method and use method thereof
  • Disinfectant for forming small-particle-size aerosol, and preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A disinfectant solution for forming an aerosol with small particle size, comprising the following raw materials in parts by weight: 0.5-2 parts of polyhexamethylene biguanide, 0.5-2 parts of organic base, 0.5-2 parts of solvent, nonionic surfactant 0.1-0.5 parts, cationic surfactant 0.1-0.5 parts, deionized water 50-200 parts;

[0029] Specifically, 0.5 parts of polyhexamethylene biguanide, 0.5 parts of organic base, 1.5 parts of solvent, 0.3 parts of nonionic surfactant, 0.7 part of cationic surfactant, and 96.5 parts of deionized water;

[0030] Wherein, the organic base is selected from one or more of triethanolamine, choline, triethylamine and ethylenediamine, specifically triethanolamine, and the solvent is selected from methanol, ethanol, propanol, isopropanol, One or more of n-butanol and isobutanol, specifically ethanol;

[0031] The nonionic surfactant is specifically EO-PO polyether;

[0032] The cationic surfactant is dodecyl dihydroxyethyl betaine.

[003...

Embodiment 2

[0037] Embodiment 2 With reference to Example 1, the difference is that the raw material of the disinfectant solution of Example 2 also includes polyquaternium salt, and the mass ratio of polyquaternium salt to polyhexamethylene biguanide is (1~5): (1-5), specifically 1:5, the purpose is to improve the disinfection effect of the disinfectant solution of the present invention and reduce the production cost accordingly.

[0038] A disinfectant solution for forming an aerosol with small particle size, comprising the following raw materials in parts by weight: 0.5-2 parts of polyhexamethylene biguanide, 0.5-2 parts of organic base, 0.5-2 parts of solvent, nonionic surfactant 0.1 to 0.5 parts, 0.1 to 0.5 parts of cationic surfactant, 50-200 parts of deionized water; the raw materials of the disinfectant also include polyquaternium salt, the mass of polyquaternium salt and polyhexamethylene biguanide The ratio is (1~5):(1~5), specifically 1:5;

[0039] Specifically, 1 part of polyh...

experiment example 1

[0051] spray test

[0052] The purpose of the experiment is to test the difference in dispersibility of the mist formed by the disinfectant of the present invention and the disinfectant of Comparative Example 1. During the test, place a 2m x 1m cardboard vertically at a distance of 5 meters from the mist outlet of the spray, place 20 water-sensitive test papers evenly on the front of the cardboard, and place 20 water-sensitive test papers evenly on the back. The specification is 76mm×26mm.

[0053] Experimental example 1, experimental example 2 and comparative example 1 are diluted respectively to obtain active ingredient polyhexamethylene biguanide hydrochloride disinfectant about 2000mg / L each 2kg of diluent, using high-pressure micro-mist system (constant blue model CF7) , only one nozzle is opened, spraying respectively 1 kg of the disinfectant of Experimental Example 1, Experimental Example 2 and Comparative Example 1, and using a knapsack electric sprayer (3wBD-16 type ...

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Abstract

The invention discloses a disinfectant for forming small-particle-size aerosol, and a preparation method and a use method thereof. The disinfectant is prepared from, by weight, 0.5 to 2 parts of polyhexamethylene biguanide, 0.5 to 2 parts of an organic alkali, 0.5 to 2 parts of a solvent, 0.1 to 0.5 part of a nonionic surfactant, 0.1 to 0.5 part of a cationic surfactant and 50 to 200 parts of deionized water, wherein the organic alkali is selected from one or more of triethanolamine, choline, triethylamine and ethylenediamine, and the solvent is selected from one or more of methanol, ethanol,propanol, isopropanol, n-butyl alcohol and isobutyl alcohol. The disinfectant disclosed by the invention can be sprayed in a timing and quantitative manner through an air humidifier, particularly an ultrasonic humidifier, to obtain the aerosol which basically does not generate concentration difference with an original solution and is small in particle size.

Description

technical field [0001] The invention belongs to the technical field of disinfectants, and relates to a disinfectant for forming a small particle size aerosol, a preparation method and a use method thereof. Background technique [0002] Polyhexamethylene biguanide (international common name: PHMB) is a safe, efficient and broad-spectrum polymer antimicrobial agent, widely used in the field of sanitation and disinfection. [0003] Aerosol refers to a gaseous dispersion system composed of solid or liquid particles suspended in a gaseous medium. The size of aerosol particles is usually between 0.01 and 10 microns, but due to the wide range of sources and formation reasons, for example: the particle size of plant aerosols such as pollen is 5 to 100 microns, and the particle size of aerosols produced by wood and tobacco burning 0.01 to 1000 microns, etc. The shapes of particles are various, which can be nearly spherical, such as liquid mist beads, or flakes, needles and other ir...

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N47/44A01P1/00A61L9/14A61L2/22A61L101/46
CPCA01N25/04A01N47/44A61L2/22A61L9/14A61L2202/25A61L2209/21
Inventor 杨玮丽龚伯伙王军安
Owner 天天向上(宁波)医疗科技有限公司
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