Preservative film based on composite antibacterial nano material and preparation method of preservative film

The invention provides a preparation method of a preservative film based on a composite antibacterial nano material. The preparation method comprises the following steps in parts by weight: a step of preparing composite nano material modified polylactic acid, a step of preparing a primary mixture an...

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Hauptverfasser: WU ZE, DAI SHULIE
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides a preparation method of a preservative film based on a composite antibacterial nano material. The preparation method comprises the following steps in parts by weight: a step of preparing composite nano material modified polylactic acid, a step of preparing a primary mixture and a step of forming a film. According to the preparation method of the preservative film based on the composite antibacterial nano material, the polylactic acid is modified through the graphene oxide and boron alkene composite nano material, so that the hydrophilicity, flexibility, heat resistance and elongation at break of the polylactic acid can be remarkably improved, and the preservative film can be promoted to form a porous structure. On one hand, the surface area of the preservative film and the compatibility of polylactic acid and starch can be increased, and the antibacterial and preservative effects and the water and moisture retention effects of the preservative film are improved; and on the other hand, t