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Botanical antibacterial microcapsule emulsion and preparation method thereof

A plant source and microcapsule technology, which is applied in botany equipment and methods, plant growth regulators, chemicals for biological control, etc., can solve the problems of poor stability of plant source antibacterial agents, improve the binding force, improve The effect of antimicrobial properties

Active Publication Date: 2020-07-14
CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of poor stability of existing plant-derived antibacterial agents and the need for additional adhesives during the use of plant-derived antibacterial agent microcapsules, and to provide a plant-derived antibacterial microcapsule emulsion and a preparation method thereof

Method used

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  • Botanical antibacterial microcapsule emulsion and preparation method thereof
  • Botanical antibacterial microcapsule emulsion and preparation method thereof
  • Botanical antibacterial microcapsule emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add 0.3g of methacryloyloxyethyl dodecyl dimethyl ammonium bromide, 0.15g of non-ionic surfactant Pingping plus O-30 and deionized water in a four-necked flask to prepare a mass fraction of 0.5 % surfactant solution, add 0.9g each of Artemisia argyi essential oil, forsythia essential oil, and rhododendron essential oil, and emulsify at a speed of 1500r / min at 20°C for 2h to obtain a plant-derived antibacterial agent emulsion;

[0026] (2) After dissolving 0.5g cetyltrimethylammonium bromide and 0.5g Pingpingjia O-30 in 68mL deionized water, add 20.0g soft monomer butyl acrylate and 5.0g hard monomer methyl Methyl acrylate, 3g functional monomer γ-(methacrylamide) propyltrimethylammonium chloride, 2g modified monomer β-hydroxypropyl methacrylate, 1g crosslinking monomer glycidyl acrylate, at stirring speed Under the condition of 1500r / min, emulsify for 45min to prepare monomer pre-emulsion;

[0027] (3) Dissolve 0.2g sodium persulfate and 0.1g sodium bisulfite in 15...

Embodiment 2

[0048] (1) Add 0.75g methacryloyloxyethyl octadecyldimethyl ammonium bromide, 0.25g Pingpingjia O-30 and deionized water in a four-necked flask to prepare a surfactant with a mass fraction of 1%. Solution, add 4g mugwort essential oil, 12g forsythia essential oil, 4g rhododendron essential oil, and emulsify at 3000r / min at 40°C for 1 hour to obtain a botanical antibacterial agent emulsion;

[0049] (2) After dissolving 2.4g cetyltrimethylammonium chloride and 0.6g Pingpingjia O-30 in 45mL deionized water, add 30.0g soft monomer ethyl acrylate and 10.0g hard monomer methyl Ethyl acrylate, 5g functional monomer methacryloxyethyltrimethylammonium chloride, 4g modified monomer β-hydroxyethyl methacrylate, 3g crosslinking monomer glycidyl methacrylate, stirring Under the condition of rotating speed 3000r / min, emulsify for 30min to prepare monomer pre-emulsion;

[0050] (3) Dissolve 0.75g sodium persulfate and 0.25g sodium bisulfite in 15mL deionized water to prepare initiator solu...

Embodiment 3

[0053] (1) Add 0.5g methacryloyloxyethylhexadecyldimethylammonium bromide, 0.2g Pingpingjia O-30 and deionized water into a four-necked flask to prepare a 0.8% surfactant solution , add 1.4g mugwort essential oil, 2.8g forsythia essential oil, 1.4g rhododendron essential oil, and emulsify at 30°C for 1.5h at a speed of 2000r / min to obtain a botanical antibacterial agent emulsion;

[0054] (2) Dissolve 4g of dodecyltrimethylammonium bromide and 2g of Pingpingjia O-30 in 54mL of deionized water, then add 24.0g of soft monomer octyl acrylate and 7.5g of hard monomer methyl methacrylate Ester, 3.5g functional monomer methacryloxyethyl dimethyl benzyl ammonium chloride, 3g modified monomer β-hydroxypropyl methacrylate, 2.0g crosslinking monomer glycidyl acrylate, stirring Under the condition of rotating speed 2000r / min, emulsify for 35min to prepare monomer pre-emulsion;

[0055] (3) 0.2g sodium persulfate and 0.08g sodium bisulfite were dissolved in 15mL deionized water to prepar...

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Abstract

The invention discloses a preparation method of a botanical antibacterial microcapsule emulsion. Artemisia argyi essential oil, forsythia suspensa essential oil and azalea essential oil are selected to prepare an antibacterial plant extract compound. The preparation method comprises the following steps: emulsifying a polymerizable cationic surfactant and a nonionic surfactant by compounding to prepare a plant-derived antibacterial agent emulsion, and initiating polymerization of the polymerizable cationic surfactant to prepare a plant-derived antibacterial essential oil microcapsule seed emulsion; on the basis of the seed emulsion, dropwise adding a monomer pre-emulsion containing a soft monomer, a hard monomer, a functional monomer, a modified monomer, a cross-linking monomer, a cationicemulsifier and peregal O-30, and obtaining the plant-derived antibacterial microcapsule emulsion through polymerization. The obtained botanical antibacterial microcapsule emulsion finishing fabric hasexcellent antibacterial activity on escherichia coli, staphylococcus aureus and candida albicans, and has excellent washability.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a plant source antibacterial microcapsule emulsion and a preparation method thereof. Background technique [0002] Microorganisms are widely distributed in nature. Under suitable environmental conditions, microorganisms will multiply rapidly, thereby deteriorating, corroding and deteriorating materials, resulting in huge economic losses. The antibacterial agent is treated on the surface of the substrate by physical or chemical means, and by directly killing microorganisms or destroying the environment where microorganisms grow and reproduce, it can eliminate germs and inhibit the growth of bacteria to achieve the purpose of antibacterial. Common antibacterial agents are: organic antibacterial agents, inorganic antibacterial agents and natural antibacterial agents. Organic antibacterial agents have good bactericidal effect, but most of them are toxic and prone to drug res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/20C08F220/32C08F220/60C08F220/34C08F2/28C08F2/30C08F2/44C08K5/00D06M23/12D06M15/285D06M15/273D06M15/267D06M13/00A01N65/16A01N65/12A01N65/08A01N37/12A01P3/00A01P1/00
CPCA01N25/28A01N37/12A01N65/00A01N65/08A01N65/12A01N65/16C08F2/28C08F2/30C08F2/44C08F220/18C08K5/0058D06M13/00D06M15/267D06M15/273D06M15/285D06M16/00D06M23/12
Inventor 陈群彭勇刚纪俊玲陈海群汪媛谈君婕
Owner CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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