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Preparation method of graphite/carbon nano fiber biomedical externally applied non-woven fabric

A carbon nanofiber and biomedical technology, applied in the field of biomedical materials and biomedical composite materials, can solve the problems of graphene paper with low mechanical strength, underdeveloped pore structure, and easy self-stacking, so as to promote wound healing and less process , Improve the effect of adsorption and holding capacity

Active Publication Date: 2017-09-08
重庆锦添翼新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new type of graphene / carbon nanofiber non-woven fabric for the existing graphene powders which are easy to self-stack, have undeveloped pore structure, low adsorption capacity, low mechanical strength and poor durability of graphene paper. The preparation method has the advantages of convenient operation and low production cost; the graphene / carbon nanofiber non-woven fabric prepared by the method of the present invention has strong flexibility, high mechanical strength, strong durability, good air permeability, and bactericidal and antibacterial properties Excellent performance such as strong effect and high adsorption capacity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of graphite/carbon nano fiber biomedical externally applied non-woven fabric

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Effect test

Embodiment 1

[0025] A preparation method of graphene / carbon nanofiber biomedical non-woven fabric for external application, characterized in that the specific steps of the method are as follows:

[0026] (1) Preparation of fiber spinning precursor

[0027] Prepare fiber spinning precursor solution A, the concentration of high molecular polymer in the solution A is 200g / L; stir the solution A for 48 hours, stirring temperature is 25°C to obtain a uniform solution A. Prepare fiber spinning precursor solution B, the concentration of high molecular polymer in the solution B is 200g / L; keep stirring the solution B for 48 hours, stirring temperature is 25°C to obtain a uniform solution B.

[0028] (2) Preparation of graphene composite fiber spinning precursor

[0029] The reduced graphene oxide powder through reduction treatment is added in the solution B that obtains in step (2) and prepares graphene composite core layer fiber spinning precursor solution C, and the concentration of commercial ...

Embodiment 2

[0035] A preparation method of graphene / carbon nanofiber biomedical non-woven fabric for external application, characterized in that the specific steps of the method are as follows:

[0036] (1) Preparation of fiber spinning precursor

[0037] Prepare fiber spinning precursor solution A, the concentration of polymer in the solution A is 60g / L; stir the solution A for 8 hours and 80°C to obtain a uniform solution A. Prepare fiber spinning precursor solution B, the concentration of high molecular polymer in solution B is 60g / L; keep stirring solution B, stirring time is 8h, stirring temperature is 90°C, and uniform solution B is obtained.

[0038] (2) Preparation of graphene composite fiber spinning precursor

[0039] The reduced graphene oxide powder that will be reduced is joined in the solution B that obtains in step (2) and prepares graphene composite core layer fiber spinning precursor solution C, and the concentration of graphene oxide powder in the described solution C i...

Embodiment 3

[0045] A preparation method of graphene / carbon nanofiber biomedical non-woven fabric for external application, characterized in that the specific steps of the method are as follows:

[0046] (1) Preparation of fiber spinning precursor

[0047] Prepare fiber spinning precursor solution A, the concentration of high molecular polymer in solution A is 130g / L; stir solution A for 28 hours, stirring temperature is 52.5°C to obtain uniform solution A. Prepare fiber spinning precursor solution B, the concentration of high molecular polymer in solution B is 130g / L; keep stirring solution B for 28 hours, stirring temperature is 57.5°C to obtain a uniform solution B.

[0048] (2) Preparation of graphene composite fiber spinning precursor

[0049] The graphene oxide powder prepared by the Hummers method is added to the solution B obtained in step (2) to prepare the graphene composite fiber spinning precursor solution C, and the concentration of the graphene oxide powder in the solution C...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a preparation method of graphite / carbon nano fiber biomedical externally applied non-woven fabric, which belongs to the field of medical materials used for surgery. Graphite powder is embedded into a polymer fiber shell layer or core layer by coaxial electrostatic spinning technique, peroxidation and carbonizing treatment are carried out to obtain porous graphite / carbon nano fiber non-woven fabric with large specific surface area, strong air permeability and high strength, and medical liquid containing recovery liquid or externally applied recombinant human basic fibroblast growth factor is sprayed on the surface of the non-woven fabric to obtain graphite / carbon nano fiber biomedical externally applied non-woven fabric for promoting wound surface healing. The preparation method of the invention has the characteristics of simple process, convenience, environmental friendliness, low cost, adaptability for large-scale production, and so on. The graphite / carbon nano fiber non-woven fabric prepared by the method of the invention has high mechanical strength, high flexibility, good durability, rich pores, and high liquid absorption capacity, does not stick to the wound surface and can promote the wound surface healing, and can be widely used for treatment of traumas such as wound, ulcer, scald and extensive burn.

Description

technical field [0001] The invention belongs to the technical field of biomedical materials, and in particular relates to a biomedical externally applied graphene / carbon nanofiber non-woven fabric material and a preparation method thereof in the technical field of biomedical composite materials. Background technique [0002] In recent years, electrospinning technology has become the mainstream technology of nanofiber manufacturing due to its continuous, convenient, fast, simple process and low cost. Electrospinning technology is a method in which a charged polymer solution (or melt) flows and deforms in an electrostatic field, and is solidified by solvent evaporation or melt cooling to obtain fibers. The nanofibers produced by electrospinning technology have high fineness and uniformity. The fiber web has many advantages such as high porosity, large specific surface area, and good air permeability. It has been used in catalyst carriers, medical biomaterials, ion adsorption, ...

Claims

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Application Information

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IPC IPC(8): A61L15/44A61L15/18A61L15/42D04H1/728
CPCA61L15/18A61L15/425A61L15/44A61L2300/414D04H1/728D10B2509/02
Inventor 李新禄赵昱颉邓舒婷赵奚誉王荣华
Owner 重庆锦添翼新能源科技有限公司
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