Preparation method of graphene oxide/bacterial cellulose antibacterial compound material

A technology of bacterial cellulose and composite materials, applied in the field of composite materials, can solve problems such as affecting application and development, no antibacterial properties, etc., and achieve the effects of superior antibacterial properties, easy operation and simple process
CN104072809AInactive Publication Date: 2014-10-01NANJING FORESTRY UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING FORESTRY UNIV
Publication Date
2014-10-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a graphene oxide / bacterial cellulose antibacterial compound material. The preparation method comprises the following steps: (1) inoculating activated bacterial cellulose into a seed medium to culture, then, inoculating the activated bacterial cellulose into a fermentation medium according to an inoculum size of 5-10%, and after fully and uniformly mixing, putting in a constant-temperature culture box at 30+ / -2 DEG C, standing and fermenting for 1-2 weeks to obtain a bacterial cellulose wet film; (2) after alkali-washing the bacterial cellulose wet film, pulping to a homogeneous phase suspension liquid by virtue of a mechanical method; (3) mixing a graphene oxide solution with the bacterial cellulose homogeneous phase suspension liquid, and carrying out ultrasonic dispersion to prepare a homogeneous phase mixed liquid; (4) decompressing and filtering the homogeneous phase mixed liquid, and freezing and drying to separate the graphene oxide / bacterial cellulose antibacterial compound material. The preparation method of the graphene oxide / bacterial cellulose antibacterial compound material disclosed by the invention is simple, few in step and easy to operate, and the prepared graphene oxide / bacterial cellulose antibacterial compound material has excellent antibacterial performance and can be widely applied to the fields such as medical dressing and artificial skins.
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Description

technical field

[0001] The invention relates to the technical field of composite materials, in particular to a method for preparing a graphene oxide / bacterial cellulose antibacterial composite material. Background technique

[0002] Graphene consists of carbon atoms with sp 2 Composed of hybridized monoatomic layers, it is the thinnest two-dimensional material found so far. This special structure makes it contain many peculiar physical and chemical properties, such as high specific surface area and excellent thermal conductivity, mechanical properties and Electron transfer capability. Graphene oxide (Graphene Oxide, GO) is a derivative of graphene. It is a single-layer or multi-layer graphite oxide formed by the exfoliation of graphite oxide. It has a typical quasi-two-dimensional space structure, and its sheets contain many Oxygen-containing groups have high specific surface energy, good hydrophilicity and mechanical properties, and good dispersion stability in water and ...

Claims

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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