Polylactic acid-polypyrrole/silver composite antibacterial film and preparation method thereof

A compound antibacterial and polypyrrole technology, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve problems such as agglomeration and high cost of silver nanoparticles, and achieve the effect of enhancing antibacterial performance
CN109369941AActive Publication Date: 2019-02-22XIAMEN AMESON NEW MATERIAL INC
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
XIAMEN AMESON NEW MATERIAL INC
Publication Date
2019-02-22

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Abstract

The invention provides a preparation method of a polylactic acid-polypyrrole / silver composite antibacterial film and relates to the technical field of polymer materials. The preparation method comprises the steps: acquiring a PLA film; preparing an AgNO3 aqueous solution, and placing the PLA film into the AgNO3 aqueous solution to carry out soaking and adsorption; and preparing a Py monomer solution, pouring the Py monomer solution into a mixed solution, and triggering a Py monomer to be subjected to an oxidative polymerization reaction on the surface of the PLA film by Ag<3+> to obtain the composite antibacterial film. The composite antibacterial film has excellent heat stability and antibacterial properties. In addition, the invention further relates to the polylactic acid-polypyrrole / silver composite antibacterial film comprising a PLA film matrix and a surface PPy / Ag composite antibacterial coating covering the PLA film matrix. The polylactic acid-polypyrrole / silver composite antibacterial film is simple in preparation method and low in cost and has a certain research significance in the field of PLA active packaging.
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Description

technical field

[0001] The invention relates to the field of polymer materials, and in particular to a polylactic acid-polypyrrole / silver composite antibacterial film and a preparation method thereof. Background technique

[0002] Polylactic acid (PLA) material is a biodegradable polymer material with excellent biocompatibility and physical properties, and has excellent biocompatibility and stiffness. PLA has great application potential in the packaging field, and can replace traditional plastic packaging materials to a certain extent, and alleviate the current increasingly serious environmental pollution problems. However, there are certain defects in the barrier properties and antibacterial properties of PLA itself, which need to be further improved.

[0003] Studies have shown that conductive polymer materials can also achieve antibacterial effects through electrostatic interactions. Therefore, conductive polymer materials can be used to produce strong electrostatic bond...

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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