Preparation method and application of water-based safe plant antibacterial agent

Abstract

The invention relates to a preparation method of a water-based safe plant antibacterial agent. The method specifically comprises the following steps of S1, extracting plant essential oil from cinnamomum camphora leaves, citronella leaves, lavender leaves, eucalyptus leaves, lemon grass leaves and jasmine leaves by adopting a supercritical extraction method and taking a CO2 fluid as an extractant and pure water as an entrainer, wherein the mass ratio of the pure water to the raw materials is 1: 1; S2, fully mixing the essential oil extracted in the step S1 to obtain mixed essential oil; S3, adding a surfactant, a solubilizer and a cosolvent into a stirring kettle, and fully stirring and mixing the components to obtain a modifier; S4, adding the mixed essential oil into the stirring kettle containing the modifier in the step S3 according to a ratio of (1: 2)-(1: 10), and stirring the components to obtain a water-based essential oil mother solution; and S5, introducing the water-based essential oil mother solution obtained in the S4 into a reaction kettle, and carrying out a full reaction at 60-150 DEG C to obtain the final water-based plant antibacterial agent. The antibacterial agent prepared with the method not only has good antibacterial and bacteriostatic properties, but also has the characteristics of low irritation, safe components and mild smell.

Description

technical field [0001] The invention relates to the technical field of antibacterial materials, in particular to a preparation method and application of a water-based safe plant antibacterial agent. Background technique [0002] Antibacterial agents can be used to kill pathogenic microorganisms on the media, and can also be regarded as disinfectants in a sense. They can not only act on the skin of the human body, inhibit or even kill bacteria or microorganisms on the surface of the skin, but also act on the air. Among them, inhibit or kill bacteria in the air, eliminate pathogenic microorganisms outside the human body, cut off the transmission route of virus microorganisms, and make them meet the requirements of harmlessness, so as to achieve the purpose of controlling infectious diseases. [0003] Existing antibacterial agent has 75% alcohol disinfectant (bactericide), 84 etc. contain hydrogen peroxide or sodium hypochlorite disinfectant, chlorine-containing organic bacteri...

AI Technical Summary

Problems solved by technology

Although 75% alcohol disinfectant (fungicide) has a good bactericidal effect, it is easy to irritate the skin, is flammable and explosive, and will be restricted during logistics transportation and cannot be carried on public transportation such as subways and long-distance buses; Disinfectants containing hydrogen peroxide or sodium hypochlorite such as 84 have an unpleasant smell, are very irritating to the skin, and are likely to cause skin allergies and other problems. However, the high content of hydrogen peroxide has the risk of decomposing and causing an explosion; chlorine-containing organic fungicides are also very irritating to the skin. And there is a risk of cancer. The U.S. Food and Drug Administration has banned triclosan from being used as an antibacterial agent since 2016; guanidine fungicides can be used to disinfect and sterilize the skin, but there is a risk of lung cancer if it enters the lungs

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