Environment-friendly nano-silver bacteriostatic compound

A compound and nano-silver technology, which is applied in the field of antibacterial agents, can solve the problems of secondary pollution and antibacterial effects, achieve good biodegradability, increase film density, and improve stability

Inactive Publication Date: 2018-12-14
FOSHAN SENANG BIO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an environment-friendly nano-silver bacteriostatic compound in view of the problem that the commonly used antibacterial agents will cause secondary pollution during use and have poor antibacterial effects

Method used

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  • Environment-friendly nano-silver bacteriostatic compound

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preparation example Construction

[0029] The preparation method of composite base material, comprises the steps:

[0030] (1) Take nano-copper powder and mix it with HCl solution with a mass fraction of 12% according to the mass ratio of 1:12~18, and then use 400W ultrasonic treatment for 25~40min, let it stand at room temperature for 1~3h, filter with suction, take the filter residue and wash it with water to the lotion After it is neutral, get pretreated nano-copper powder, mix polyethylene glycol octyl propyl ether and reagents at a mass ratio of 1:15~25, stir at 400~600r / min for 40~60min, and get a mixed solution, take the mixed solution Add hydroxylated multi-walled carbon nanotubes with a mass of 20-40% of the mixed liquid and pretreated nano-copper powder with a mass of 10-20% of the mixed liquid, move to an ultrasonic oscillator, and oscillate ultrasonically at a frequency of 45-55kHz for 40-60min to obtain a suspension liquid, take the suspension and pass it through a 0.25 μm filter membrane to obtain...

Embodiment 1

[0040] Thickener: mix lanolin and sodium alginate at a mass ratio of 1:3 to obtain a thickener;

[0041] Plasticizer: Mix triethyl citrate and dioctyl phthalate at a mass ratio of 4:1 to obtain a plasticizer;

[0042] Leveling agent: Mix polydimethylsiloxane and carboxymethyl cellulose at a mass ratio of 6:1 to obtain a leveling agent;

[0043] Auxiliary materials: mix polyamide and polylactic acid at a mass ratio of 7:1 to obtain auxiliary materials;

[0044] Reagent: Mix sodium dodecyl sulfonate and ethanol solution with a volume fraction of 60% according to the mass ratio of 1:15 to obtain the reagent;

[0045] Plant essential oil: jasmine essential oil;

[0046] Lecithin: soybean lecithin;

[0047] The preparation method of composite base material, comprises the steps:

[0048] (1) Take nano-copper powder and add HCl solution with a mass fraction of 12% according to the mass ratio of 1:12, mix it, treat it with 400W ultrasonic wave for 25 minutes, let it stand at room ...

Embodiment 2

[0058] Thickener: mix lanolin and sodium alginate at a mass ratio of 1:7 to obtain a thickener;

[0059] Plasticizer: Mix triethyl citrate and dioctyl phthalate at a mass ratio of 8:1 to obtain a plasticizer;

[0060] Leveling agent: Mix polydimethylsiloxane and carboxymethyl cellulose at a mass ratio of 10:1 to obtain a leveling agent;

[0061] Auxiliary materials: mix polyamide and polylactic acid at a mass ratio of 12:1 to obtain auxiliary materials;

[0062] Reagent: Mix sodium dodecyl sulfonate and ethanol solution with a volume fraction of 60% according to the mass ratio of 1:25 to obtain the reagent;

[0063] Plant essential oil: lavender essential oil;

[0064] Lecithin: egg lecithin;

[0065] The preparation method of composite base material, comprises the steps:

[0066] (1) Take nano-copper powder and add HCl solution with a mass fraction of 12% according to the mass ratio of 1:18, mix it with 400W ultrasonic treatment for 40min, let it stand at room temperature...

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Abstract

The invention relates to an environment-friendly nano-silver bacteriostatic compound, and belongs to the technical field of antibacterial agents. Nano-copper powder as a raw material cooperates with epoxy resin to be used as a bacteriostatic carrier, the bacteriostatic effect can be fully played and good biodegradability is achieved; with sodium alginate as a reducing agent and a stabilizing agent, an AgNO3 solution is irradiated by ultraviolet light to prepare the nano-silver and silver compound, so the compound gives full play to a bacteriostatic effect, and has high biodegradability; addedmicrocrystalline paraffin wax can carry nano-silver in the system to float upward to the surface of the system during preparation, a water-inhibiting bacteriostatic layer is formed on the product surface, and the plasticity of the bacteriostatic compound system can be improved; in the subsequent preparation process, plant essential oil can occupy the positions of a part of functional groups in thecross-linking network of a composite matrix and chitosan, reduces the vibration intensity of covalent bonds in the cross-linking network molecules, plays a multi-level bacteriostatic effect, and hasno secondary pollution. The problems that the commonly used bacteriostatic agent can cause secondary pollution and has poor bacteriostatic effect in the use process are solved.

Description

technical field [0001] The invention relates to an environment-friendly nano-silver antibacterial compound, which belongs to the technical field of antibacterial agents. Background technique [0002] As the latest generation of natural antibacterial agent, nano-silver has the characteristics of broad-spectrum antibacterial, no drug resistance, safety and non-toxicity. The corresponding nano-silver products developed by researchers at home and abroad have been applied in various fields. With the increasing resistance to antibiotics, the research and application of nano-silver in the field of disinfection and sterilization has attracted more and more attention, and it has become a promising generation of antibacterial drugs. Studies have shown that nano-silver has a bactericidal effect because of the silver ions in nano-silver particles. Silver ions inhibit the reproduction of bacteria through the following three ways: 1. Silver ions attack the -SH group in the metabolic enzy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L93/04C08L77/00C08L67/04C08L5/04C08L91/00C08K9/04C08K3/08C08K3/04C08K3/32C08K13/06C08K5/12
CPCC08K2003/0806C08K2201/011C08L63/00C08L2205/035C08L93/04C08L77/00C08L67/04C08L5/04C08L91/00C08K9/04C08K3/08C08K3/04C08K3/32C08K13/06C08K5/12
Inventor 胡次兵陈建春卢星
Owner FOSHAN SENANG BIO TECH CO LTD
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