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Degradable medical epidemic prevention packaging film and production process thereof

A production process and packaging film technology, applied in the field of medical anti-epidemic packaging film, can solve the problems of high production cost, mismatch between layers, incomplete degradation, etc.

Pending Publication Date: 2021-05-18
CHENGDU ZHIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the packaging film is complex, the number of layers is large, the layers do not match, the composite cannot be completely degraded, and the preparation cost is relatively high.

Method used

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  • Degradable medical epidemic prevention packaging film and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of production technology of degradable medical anti-epidemic packaging film is characterized in that, comprises the steps:

[0029] Step S1, preparation of copolymer: allyl succinimidyl carbonate, GAMMA-butyrolactone-3-yl methacrylate, 5-vinylbicyclo[2.2.1]hept-2-ene, 2 -[3-(2H-Benzotriazol-2-yl)-4-hydroxyphenyl]ethyl 2-methacrylate and initiator are added to the high boiling point solvent, stirred at 70°C in an inert gas atmosphere After reacting for 3 hours, it was precipitated in water, and the precipitated polymer was washed 3 times with dichloromethane, and then dried to a constant weight in a vacuum oven at 85°C to obtain a copolymer;

[0030] Step S2, forming the primary product of the packaging film: mix the copolymer, epoxy vegetable oil, and hyperbranched starch prepared in step S1 evenly to obtain a mixed material, and then heat-melt the mixed material through a single-screw extrusion film blowing machine Extruded and blown into plastic film to obtain...

Embodiment 2

[0037] A kind of production technology of degradable medical anti-epidemic packaging film is characterized in that, comprises the steps:

[0038] Step S1, preparation of copolymer: allyl succinimidyl carbonate, GAMMA-butyrolactone-3-yl methacrylate, 5-vinylbicyclo[2.2.1]hept-2-ene, 2 -[3-(2H-Benzotriazol-2-yl)-4-hydroxyphenyl]ethyl 2-methacrylate and initiator are added to the high boiling point solvent, stirred at 73°C in an inert gas atmosphere After reacting for 3.5 hours, it was precipitated in water, and the precipitated polymer was washed 4 times with dichloromethane, and then dried in a vacuum oven at 87°C to constant weight to obtain a copolymer;

[0039] Step S2, forming the primary product of the packaging film: mix the copolymer, epoxy vegetable oil, and hyperbranched starch prepared in step S1 evenly to obtain a mixed material, and then heat-melt the mixed material through a single-screw extrusion film blowing machine Extruded and blown into plastic film to obtain...

Embodiment 3

[0045] A kind of production technology of degradable medical anti-epidemic packaging film is characterized in that, comprises the steps:

[0046] Step S1, preparation of copolymer: allyl succinimidyl carbonate, GAMMA-butyrolactone-3-yl methacrylate, 5-vinylbicyclo[2.2.1]hept-2-ene, 2 -[3-(2H-Benzotriazol-2-yl)-4-hydroxyphenyl]ethyl 2-methacrylate and initiator are added to the high boiling point solvent, stirred at 75°C in an inert gas atmosphere After reacting for 4 hours, it was precipitated in water, and the precipitated polymer was washed 6 times with dichloromethane, and then dried in a vacuum oven at 90°C to constant weight to obtain a copolymer;

[0047] Step S2, forming the primary product of the packaging film: mix the copolymer, epoxy vegetable oil, and hyperbranched starch prepared in step S1 evenly to obtain a mixed material, and then heat-melt the mixed material through a single-screw extrusion film blowing machine Extruded and blown into plastic film to obtain t...

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Abstract

The invention discloses a production process of a degradable medical epidemic prevention packaging film. The production process comprises the following steps: step S1, preparing an allyl succinimido carbonate / GAMMA-butyrolactone-3-yl methacrylate / 5-vinyl bicyclo [2.2. 1] hept-2-ene / 2-[3-(2H-benzotriazole-2-yl)-4-hydroxyphenyl] ethyl 2-methacrylate copolymer, s2, molding a packaging film primary product; and step S3, performing radiation grafting. The invention further provides the degradable medical anti-epidemic packaging film produced according to the production process of the degradable medical anti-epidemic packaging film. The degradable medical epidemic prevention packaging film disclosed by the invention is simpler in structure, better in mechanical property, barrier property, heat resistance, water resistance and cold resistance, and better in degradability.

Description

technical field [0001] The invention relates to the technical field of medical packaging, in particular to a degradable medical anti-epidemic packaging film and a production process thereof. Background technique [0002] Medical packaging film is an important product in the field of pharmaceutical packaging. It is non-toxic, puncture-resistant, and super-strength. It is mainly used to prevent bacteria from entering the product covered by the packaging film. It has been widely used in the field of medical and epidemic prevention. The application is mainly used in the packaging of various dosage forms of medicines. The amount of medical anti-epidemic packaging film that needs to be consumed every year is very large. Due to reasons such as excessive use and inadequate recycling, it has also caused serious waste of energy resources and environmental pollution, and it is easy to form "white pollution". It is in this situation that degradable medical anti-epidemic packaging films...

Claims

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Application Information

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IPC IPC(8): C08L33/14C08L91/00C08L3/02C08J5/18C08J7/18
CPCC08J5/18C08J7/18C08J2333/14C08J2403/02C08J2491/00
Inventor 向红荣
Owner CHENGDU ZHIA TECH CO LTD
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