Medical packaging film and preparation method thereof

Abstract

The invention is applicable to the technical field of materials, and provides a medical packaging film and a preparation method thereof. The medical packaging film comprises an outer film layer, an inner film layer and a phase-change energy storage material packaged between the outer film layer and the inner film layer, wherein the outer film layer is prepared from 65 to 80 parts of polylactide, 3to 9 parts of polybutylene succinate, 4 to 8 parts of nano cellulose and 3 to 8 parts of ethylene glycol isophthalate; the inner film layer is prepared from 65 to 80 parts of a polylactic acid-glycolic acid copolymer, 8 to 12 parts of a zinc chloride solution, 4 to 8 parts of nano cellulose, 4 to 8 parts of calcium propionate and 0.5 to 5 parts of polyethylene glycol terephthalate; the phase-change energy storage material is obtained by mixing a sodium chloride solution, starch water-absorbent resin, sodium polyacrylate and phase-change paraffin according to the weight ratio of 1:(3-5):(2-4):(0.01-0.03). The film layers are wide in raw material source, environmentally friendly, degradable, excellent in barrier property and mechanical property, high in transparency and capable of protecting medical articles, and meanwhile, the phase-change energy storage material is good and lasting in cold storage effect and high in repeated utilization rate.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a medical packaging film and a preparation method thereof. Background technique [0002] Regardless of whether medical drugs or medical devices are in the production, storage, transportation and other processes, in order to avoid the influence of the external environment such as ambient temperature, bacteria, dust, etc., it is often necessary to place them in the packaging film and require them to be kept in a specified low temperature environment. In order to avoid its infection loss and ensure its quality. Among them, the transportation process of medical drugs and medical devices is often the most risky link. [0003] In the prior art, in order to ensure the quality of some medical drugs and medical devices that require high low-temperature storage, they are usually transported in a low-temperature refrigerated vehicle, but this transportation method is extremel...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a medical packaging film, which aims to solve the problems of the existing ice packs, such as poor persistence of low temperature effect, unfavorable reuse, heavy environmental load and easy impact damage to medical articles.

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