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Medical polyurethane film and preparation method thereof

A technology of polyurethane film and polyurethane resin, which is applied in the field of medical polyurethane film and its preparation, can solve problems such as bacterial adhesion and infection, achieve enhanced antibacterial effect, improve safety and sanitation factor, and have good antibacterial effect

Inactive Publication Date: 2015-02-18
SUZHOU COSMETIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a medical material, bacterial adhesion and infection have become major problems, and an improved polyurethane material with strong antibacterial ability is urgently needed.

Method used

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  • Medical polyurethane film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A medical polyurethane film, comprising the following raw materials in parts by weight: 64 parts of polyurethane resin, 12 parts of 800 mesh silver powder, 5 parts of citronella extract, 1 part of butanone, 2 parts of polypropylene, 2 parts of antibacterial agent TCC, 2 parts of titanium dioxide, 0.5 parts of isopropanol.

[0024] The preparation method of above-mentioned medical polyurethane film, comprises the following steps:

[0025] Step 1, take polyurethane resin, silver powder, citronella extract, methyl ethyl ketone, polypropylene, antibacterial agent TCC, titanium dioxide, isopropanol by weight parts;

[0026] Step 2, after mixing polyurethane resin, butanone, polypropylene, antibacterial agent TCC, titanium dioxide and isopropanol, stirring at 260 rpm and heating to 60°C, then adding silver powder, and continuing to stir for 3 minutes to obtain the first mixture;

[0027] Step 3, when the first mixture is naturally cooled to 30°C, add the citronella extract, ...

Embodiment 2

[0031] A medical polyurethane film, comprising the following raw materials in parts by weight: 75 parts of polyurethane resin, 14 parts of 800 mesh silver powder, 8 parts of citronella extract, 3 parts of butanone, 5 parts of polypropylene, 9 parts of antibacterial agent TCC, 6 parts of titanium dioxide, 0.5 parts of isopropanol.

[0032] The preparation method of above-mentioned medical polyurethane film, comprises the following steps:

[0033] Step 1, take polyurethane resin, silver powder, citronella extract, methyl ethyl ketone, polypropylene, antibacterial agent TCC, titanium dioxide, isopropanol by weight parts;

[0034] Step 2, after mixing polyurethane resin, butanone, polypropylene, antibacterial agent TCC, titanium dioxide and isopropanol, stirring at 290 rpm and heating to 65°C, then adding silver powder, and continuing to stir for 5 minutes to obtain the first mixture;

[0035] Step 3, when the first mixture is naturally cooled to 34°C, add the citronella extract,...

Embodiment 3

[0039] A medical polyurethane film, comprising the following raw materials in parts by weight: 78 parts of polyurethane resin, 16 parts of 800 mesh silver powder, 10 parts of citronella extract, 5 parts of butanone, 7 parts of polypropylene, 12 parts of antibacterial agent TCC, 8 parts of titanium dioxide, 0.8 parts of isopropanol.

[0040] The preparation method of above-mentioned medical polyurethane film, comprises the following steps:

[0041] Step 1, take polyurethane resin, silver powder, citronella extract, methyl ethyl ketone, polypropylene, antibacterial agent TCC, titanium dioxide, isopropanol by weight parts;

[0042] Step 2, after mixing polyurethane resin, butanone, polypropylene, antibacterial agent TCC, titanium dioxide and isopropanol, stir at 310 rpm and heat to 70°C, then add silver powder, and continue stirring for 6 minutes to obtain the first mixture;

[0043] Step 3, when the first mixture is naturally cooled to 37°C, add the citronella extract, keep war...

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Abstract

The invention discloses a medical polyurethane film and a preparation method thereof. The medical polyurethane film comprises the following raw materials: polyurethane resin, aluminum powder, a lemongrass extracting solution, butanone, polystyrene, an antibacterial agent TCC, titania and isopropanol. The preparation method sequentially comprises the following steps: weighing the polyurethane resin, the aluminum powder, the lemongrass extracting solution, butanone, polystyrene, the antibacterial agent TCC, titania and isopropanol in parts by weight, mixing the polyurethane resin, butanone, polystyrene, the antibacterial agent TCC, titania and isopropanol, stirring and heating to 60-80 DEG C, adding the aluminum powder, continuously stirring, so as to obtain a first mixture; after naturally cooling the first mixture to 30-40 DEG C, adding the lemongrass extracting solution, maintaining the temperature, and stirring to obtain a second mixture; carrying out vacuum drying on the second mixture to obtain a matrix I, adding the matrix I into a film blowing machine for blowing the matrix I into a film. According to the medical polyurethane film, the antibacterial effect is improved on the basis of the excellent overall performance, so that the health of patients is better guaranteed.

Description

technical field [0001] The invention relates to the field of medical materials, in particular to a medical polyurethane film and a preparation method thereof. [0002] Background technique [0003] High molecular polymers are an important branch of biomaterials, which are used in the manufacture of clinical interventional materials due to their good mechanical properties and biocompatibility. Polyurethane material has good human tissue compatibility and blood compatibility, good willfulness, solvent resistance, hydrolysis resistance, non-toxicity, good wear resistance and other excellent properties. However, as a medical material, bacterial adhesion and infection have become major problems, and an improved polyurethane material with strong antibacterial ability is urgently needed. [0004] Contents of the invention [0005] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a medical polyurethane film and a preparation method ...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L23/16C08K3/22C08K3/08C08K5/00A01N65/44A01N25/10A01P1/00
Inventor 金仲恩全春兰张帆
Owner SUZHOU COSMETIC MATERIALS
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