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Antibacterial and bactericidal band-aid and preparation method thereof

A band-aid and bactericidal layer technology, which is applied in medical science, textiles and papermaking, fiber treatment, etc., can solve the problems of accelerating bacterial reproduction and no antibacterial effect, and achieves accelerated healing speed, effective antibacterial and bactericidal performance, and good dispersion Effect

Inactive Publication Date: 2018-02-09
XIFENG 2D FUJIAN MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides a bacteriostatic and sterilizing band-aid and a preparation method thereof, which solves the problem that the materials used in the existing band-aids have no antibacterial effect, and the space is closed in the presence of blood, wound pus, etc., which can easily cause bacteria to grow, and speed up the process. Bacterial reproduction

Method used

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  • Antibacterial and bactericidal band-aid and preparation method thereof
  • Antibacterial and bactericidal band-aid and preparation method thereof

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preparation example Construction

[0024] Such as figure 2 Shown, the present invention also provides the preparation method of bacteriostatic band-aid, comprises the following steps:

[0025] S101, preparing graphene oxide or graphene;

[0026] Graphene oxide preparation methods include:

[0027] Step 1.1, add 2g graphite powder in the flask, add 1gNaNO under ice-water bath 3 and 46mL concentrated sulfuric acid; step 1.2, slowly add 6g of KMnO under magnetic stirring 4 , the temperature is less than 20°C, react for 5-60min and remove the ice-water bath; step 1.3, heat up to 30-40°C, react for 20-60min, slowly add deionized water dropwise; step 1.4, stir for 10-30min and then add 60- 100mL 3wt% hydrogen peroxide solution until the foam in the reaction system disappears; step 1.5, ultracentrifuge at a speed of 7200rpm for 10-30min, and then repeatedly wash with dilute hydrochloric acid and distilled water until the pH is neutral to obtain a crude product; step 1.6, Re-dissolve the obtained crude product in ...

Embodiment 1

[0037] Take the graphene oxide prepared in step S101 with a mass ratio of 1%, add it to ethanol and perform ultrasonication for 30 minutes, continue to add 25% PVA, and continue ultrasonication for 2 hours, so that PVA and graphene oxide are fully and uniformly mixed to form a uniform spinning solution The spinning solution is transferred to the syringe of the spinneret, the metal needle diameter of the syringe is 2mm, the positive pole of the high voltage power supply is connected to the metal needle, the scotch tape is grounded, the distance from the metal needle of the syringe to the scotch tape is 12cm, and the flow rate is 0.2mL / h. Under the environment of humidity 50%RH and temperature 25°C, the two-pole voltage is adjusted to 15KV for spinning, and finally a bacteriostatic layer is directly formed on the scotch tape.

Embodiment 2

[0039] Take the graphene prepared in step S101 with a mass ratio of 5%, add it to ethanol and perform ultrasonication for 30 minutes, continue to add 25% polyvinylpyrrolidone, and continue ultrasonication for 2 hours, so that the polyvinylpyrrolidone and graphene oxide are fully and uniformly mixed to form Uniform spinning solution; the spinning solution is transferred to the syringe of the spinneret, the diameter of the metal needle of the syringe is 2mm, the positive pole of the high-voltage power supply is connected to the metal needle, the scotch tape is grounded, the distance from the metal needle of the syringe to the scotch tape is 12cm, and the flow rate is 0.2mL / h, in an environment with a humidity of 50%RH and a temperature of 25°C, adjust the bipolar voltage to 15KV for spinning, and finally form an antibacterial layer directly on the scotch tape.

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Abstract

The invention discloses an antibacterial and bactericidal band-aid. The antibacterial and bactericidal band-aid comprises an adhesive tape, a sterilizing layer which is arranged in the middle of the adhesive tape and a protective film which is arranged on the adhesive tape and covers the sterilizing layer, wherein the sterilizing layer is formed by combining graphene or graphene oxide and P25TiO2.According to the band-aid provided by the invention, the sterilizing layer is formed by applying graphene fibers or graphene and TiO2 nano-fibers, which are prepared by virtue of an electrostatic spinning method, to the adhesive tape layer of the band-aid; the adhesive tape, which is designed to be transparent, is conducive to the implementation of TiO2 photocatalysis, so that effective antibacterial and bactericidal are achieved and wounds are protected from infection or inflammation; and meanwhile, the graphene, which has an extra-large specific surface area and a strong adsorbing capacity,is beneficial for keeping the surfaces of the wounds dry and is capable of accelerating the healing speed of the wounds.

Description

technical field [0001] The invention relates to the field of bactericidal band-aids, in particular to a bacteriostatic and bactericidal band-aid and a preparation method thereof. Background technique [0002] Band-aids are generally used for exudate from wounds, to keep wounds dry, and to protect wounds to prevent infection. They have been widely used in people's daily lives and have the advantages of easy use and quick replacement. Most of the band-aids currently on the market use a drug layer to speed up wound healing; however, because the wound is relatively closed and there is blood, wound pus, etc., it is easy to cause bacterial growth, so the wound cannot heal quickly. At the same time, the materials used in the band-aid are not Antibacterial effect, accelerates the reproduction of bacteria. [0003] Graphene and graphene oxide have no effect on the normal development and metabolism of human cells, bacteria cannot grow on graphene, and have safe and effective antibact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/18A61L15/46A61L15/44D01D5/00
CPCA61L15/18A61L15/44A61L15/46A61L2300/102A61L2300/404D01D5/003
Inventor 杨与畅
Owner XIFENG 2D FUJIAN MATERIAL TECH CO LTD
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