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Preparation method and application of copper-based nanowire antibacterial material and preparation method of antibacterial melt-blown cloth

An antibacterial material and a technology of copper oxide nanowires, which are applied in the preparation of copper-based nanowire antibacterial materials and the preparation of antibacterial melt-blown cloth, can solve the problem of affecting the bactericidal performance, adhesion stability, insufficient copper-based nano-bactericidal performance, affecting melt-blown Cloth sterilization performance and other issues, to achieve strong copper ion release performance, significant antibacterial sterilization effect, stable and lasting effect of antibacterial sterilization effect

Active Publication Date: 2021-10-15
XIAMEN UNIV
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Problems solved by technology

[0004] The morphological structure of copper-based nanomaterials will greatly affect its own bactericidal performance and adhesion stability on melt-blown cloth fibers, thus affecting its bactericidal performance on melt-blown cloth.
Moreover, although oxidation treatment can improve its antibacterial performance, the copper-based nanomaterials after oxidation treatment are often prone to insufficient bactericidal performance caused by insufficient or uneven oxidation, or the morphological structure of copper-based nanomaterials is oxidatively damaged, resulting in its bactericidal performance. Insufficient problem

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  • Preparation method and application of copper-based nanowire antibacterial material and preparation method of antibacterial melt-blown cloth
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  • Preparation method and application of copper-based nanowire antibacterial material and preparation method of antibacterial melt-blown cloth

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preparation example Construction

[0038] The present invention provides a kind of preparation method of copper-based nanowire antibacterial material as described below, it comprises the following steps:

[0039] S100, preparing pure copper nanowires: using reducing agent and copper metal inorganic salt as raw materials, preparing pure copper nanowires by solvothermal method in a long-chain alkylamine solvent system;

[0040] S200, pickling of pure copper nanowires: take pure copper nanowires in a hydrophilic dispersion solvent, add weak acid solution for pickling;

[0041] S300. Prepare copper oxide nanowires: take the pickled pure copper nanowires and oxidize them by liquid phase oxidation method, high temperature air oxidation method or CVD oxidation method to prepare copper oxide nanowires, that is, copper-based nanowire antibacterial materials.

[0042]Preferably, the reaction conditions of the solvothermal method are: in a protective atmosphere, react at a reaction temperature of 80-85°C for 10-15min, and...

Embodiment 1

[0076] 1. Preparation of pure copper nanowires: Accurately weigh 0.8 mmol of copper chloride dihydrate and 0.4 mmol of nickel acetylacetonate with an analytical balance, mix the two into a cleaned three-necked flask, and measure 10 mL of oleylamine with a plastic dropper , and pour it into a three-necked flask reaction device. Subsequently, the reaction device was placed in a constant temperature heating magnetic stirrer for heating reaction, and 50 sccm high-purity nitrogen gas was continuously fed into the reaction system as a protective gas. Adjust the constant temperature heating magnetic stirrer to preheat the reaction at 80°C for 10 minutes, exhaust the air inside the reaction device, and then continue to heat the reaction device to a constant temperature of 185°C for 4 hours. After the reaction, the system was naturally cooled to room temperature, the nitrogen input was turned off, and the pure copper nanowire solution in the three-necked flask, that is, the pure copper...

Embodiment 2

[0085] 1. Preparation of pure copper nanowires: Accurately weigh 0.8 mmol of copper chloride dihydrate and 0.4 mmol of nickel acetylacetonate with an analytical balance, mix the two into a cleaned three-necked flask, and measure 10 mL of oleylamine with a plastic dropper , and pour it into a three-necked flask reaction device. Subsequently, the reaction device was placed in a constant temperature heating magnetic stirrer for heating reaction, and 50 sccm high-purity nitrogen gas was continuously fed into the reaction system as a protective gas. Adjust the constant temperature heating magnetic stirrer to preheat the reaction at 80°C for 10 minutes, exhaust the air inside the reaction device, and then continue to heat the reaction device to a constant temperature of 185°C for 4 hours. After the reaction, the system was naturally cooled to room temperature, the nitrogen input was turned off, and the pure copper nanowire solution in the three-necked flask, that is, the pure copper...

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Abstract

The invention relates to the field of antibacterial material preparation, in particular to a preparation method and application of a copper-based nanowire antibacterial material and a preparation method of antibacterial melt-blown cloth. The preparation method of the copper-based nanowire antibacterial material comprises the following steps that S100, a reducing agent and copper metal inorganic salt serve as raw materials, and a pure copper nanowire is prepared in a long-chain alkylamine solvent system through a solvothermal method; S200, the pure copper nanowire is placed in a hydrophilic dispersion solvent, and a weak acid solution is added for acid pickling; and S300, the pure copper nanowire subjected to acid pickling is subjected to oxidation through a liquid-phase oxidation method or a high-temperature air oxidation method or a CVD oxidation method to prepare a copper oxide nanowire, namely the copper-based nanowire antibacterial material. The copper-based nanowire antibacterial material is high, sufficient and uniform in oxidation, the oxidized nanowire still keeps a slender structure, and the sterilization effect is good; and the adhesion stability of the material on the melt-blown cloth is high, so that the sterilizing effect is remarkable, stable and lasting when the material is applied to the melt-blown cloth.

Description

technical field [0001] The invention relates to the field of preparation of antibacterial materials, in particular to a preparation method and application of copper-based nanowire antibacterial materials and a preparation method of antibacterial melt-blown cloth. Background technique [0002] Antibacterial materials refer to a class of functional materials that have the function of killing or inhibiting the growth and reproduction of harmful bacteria. Antibacterial materials are divided into organic and inorganic systems. Copper-based nanomaterials are an important inorganic antibacterial material. Copper-based nanomaterials can inactivate cells through processes such as contact disinfecting, oxidation induction, and release of copper ions, and induce cells to lose necessary nutrients and water until they shrink. . Compared with pure copper, copper oxide has a stronger ability to release copper ions, and can achieve antibacterial effect more effectively. [0003] Melt blown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/56D06M11/42
CPCD04H1/56D06M11/42D06M16/00Y02A50/30
Inventor 蔡端俊林泽锋唐燕陈瀚周其程
Owner XIAMEN UNIV
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