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Degradable antibacterial biomedical multilayer film

A multi-layer film and biological technology, applied in medical science, bandages, absorbent pads, etc., can solve problems such as environmental secondary damage, toxic gas produced by bandages, environmental impact, etc., and achieve easy decomposition, good antibacterial effect, and good mechanical properties Effect

Inactive Publication Date: 2017-08-15
JIANGSU SUPLA BIOPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned antibacterial bandages are generally made of plastic materials that are not easy to decompose, so it is easy to cause a great impact on the environment when disposed of
If the bandage is disposed of by incineration, the burned bandage will produce toxic gas and cause secondary damage to the environment

Method used

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  • Degradable antibacterial biomedical multilayer film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Preparation of the first biodegradable composition

[0057] First, add 100 parts by weight of polylactic acid, 0.1 part by weight of acrylic polyester compound, 0.1 part by weight of crystal aid and 0.1 part by weight of plasticizer into a twin-screw mixer, and after mixing and granulating, you can make Obtain the first biodegradable composition.

[0058] Preparation of the Second Biodegradable Composition

[0059] The second biodegradable composition uses the same preparation method as the above-mentioned first biodegradable composition, the difference is that the second biodegradable composition changes the type and amount of raw materials, and its formula is as shown in Table 1 , and will not be repeated here.

[0060] Preparation of multilayer films

[0061] Place the above-prepared first biodegradable composition and second biodegradable composition at 90° C., and after drying for more than 4 hours, the moisture content of the biodegradable composition is less tha...

Embodiment 2 to 5

[0063] Examples 2 to 5 use the same preparation method as that of the multilayer film in Example 1, the difference is that the types and usage amounts of raw materials in the multilayer film are changed in Examples 2 to 5, and the formula and evaluation results are as in Section 1. 1, and will not be repeated here.

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Abstract

The invention discloses a degradable antibacterial biomedical multilayer film. The degradable antibacterial biomedical multilayer film is made by using two biodegradable compositions with different compositions, and these biodegradable compositions all contain polylactic acid. After the co-extrusion process, a degradable antibacterial biomedical multilayer film can be prepared. The adhesive layer of the degradable antibacterial biomedical multilayer film contains antibacterial compounds, so it can have good antibacterial effect.

Description

technical field [0001] The invention relates to a plastic material, in particular to a biodegradable plastic material. Background technique [0002] In daily life, people often get skin cuts by accidentally touching sharp objects. In order to protect the wound, people will put an antibacterial bandage (bandage) on the wound, so as to prevent the wound from being infected by bacteria or caused by daily activities, and the wound can be healed. [0003] The aforementioned antibacterial bandages are generally made of plastic materials that are not easy to decompose, so they are likely to have a great impact on the environment when they are disposed of. If the bandage is disposed of by incineration, the burned bandage will produce toxic gas and cause secondary damage to the environment. [0004] In view of this, it is urgent to provide a degradable antibacterial biomedical multilayer film to improve the defects of the existing degradable antibacterial biomedical multilayer film...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/26A61L15/44
Inventor 黄明仁吴中仁张简邦宏
Owner JIANGSU SUPLA BIOPLASTICS CO LTD